AY Gidi thiéu trich doan boi GV.. Fill each gap in the passage with a suitable word from the kind programs — lan guage courses Today computer companies Se many different 1 .... But do
Trang 1A ring B phone C.telephone D: call
5 Someone answers the telephone and you say, “Can l Elsa please?” kẻ
A speak to B talk to C say to D tell AN
6 How do you pronounce the first figure in the number: 071 499 vất
7 The telephone out of order, Mr Brown did not know what to do
A was B being - C.has been D.was being
8 Television only for the last sixty years @ +
A must be existed B has been existe
| C was existed | D has existed ©)
9 He didn’t seem to mind TV while he was trying to study °
A that they watch B their watching
C them watching D them.to’ ‘watch
10 When I telephoned the headmaster, his secretary told me to on as
he was talking to someone &3
A wait B go C hold D carry 1] May I watch the television prograny Pin we are having lunch ?
A while B.during < + €.between D.just
12.1 looked up their number in the télephone aac , g
“A guide B list 5 — C directory D catalogue 13: H De PHOHESssssee him to buy ‘some potatoes on the way home
A.remember B recollect C recall D remind
14 } think you'd for a | plumber and get it done
A better-to phone - i B better phone
C rather to phase” D rather have call
15 John is very good „rừn playing computer games
eh ‘hey believe that playing games for too long can be to their |
3 In particular, parents are afraid of changes in the children’s
AY
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Trang 2
4 Some parents have frequent with their children about how often <
| and how long they should play these games for ARGUE SY
5 There is no proof that computer games are dangerous K Ss
SCIENCE
6 Although the basic is relatively cheap , the computer games
7 Computer game companies employ special to help (people who get into difficulties with their games : ABVICE
8 A source cannot be directly proeeseed by the computer until it has
9: Our introductory programming text included a brief — of many
10 Did the analyst give the new programmer thé ` King necessary to start
11 The time necessary for a program 3§ usually indicated on the
12 The success of the course depends ‘en 'the of the tutors to help
the students in their computer assi AVAILABLE
13 Computers are used in on-line airline ` RESERVE
14 The memory of a compete has numerous storage called
67 Read the passage: Sand choose the best answer
A new VR, (virtual reality) headset for the home user will be in
- the shops soon They makers: (1) sca that it will change the way that computer games , are played Unlike the heavy VR headsets that people have been using-in arcades (2) the last few years, the new sets look more like a pair of sunglasses than a fireman’s (3) A spokesman
for the company said, “A lot of people had (4) with the old
headsets "They were (Š) heavy that if you wore them (6) for more than an hour or so, they could cause quite a lot of (7) Our
news headsets are very comfortable, and will be perfect for games as well
Trang 3
Some scientists, however , are (8) about the effects of VR Child psychologist Brenda Smith explained: “There have (9) beet several cases or violence among young children where computer games were to (10) With VR, we will soon have children who are not (11) to playing with other people (12) your life in a, constant
battle with aliens and monsters is not really a (13) environment for
someone young We (14) that a child should experience actual reality, not virtual reality, and it would be.a great (15) uf efor parents to bring this sort of technology into the home.” &
L A claim _B threaten C.offer Y -D recommend
2 A since B ago C among AD) ) D.for
4 A mistakes _B faults C problems D errors
5 A very — B too kóc So D such
6 A continuously B ky gi C ‘always D regularly
1 A hurt B.ache ee, pain - D suffering
8 A afraid B worried Vi scared D threatened
9 A yet B ever & C still D already
10 A fault : B error,< “ —€., defect D blame
11 A.used B mad@s” C.allowed _—OD interested
12 A Spending _ B Doing C Making D Passing
là, A convenient B sùitable C real D right
14 A recommend, Brtell: C offer D speak
F5 A defect ‹® fault € mistake D blame
68 Fill each ốp h in 1 the passage with the correct form of the word in brackets
" => THE OPERATING SYSTEM
When a computer is turned on it searches for (1) (instruct)in its memory ‘Usually, the first SetroL (2) sscscers (this) instructions is a special program @) khe (call) the operating system, which is the software
that\makes the computer work It prompts the user (or other machines)
for) input and commands, reports the results of these commands and
“4 <other (4) (operate), stores and manages data, and controls the
Trang 4sequence of the software and hardware actions When the (5) &
(use) requests that a program run, the operating system loads the program in the computer’s (6) (memorize) and runs the programs” F
Popular operating systems, such as Windows 95 and the Macintosh
operating system, have a graphical user interface (GUI) - thats is, a
display that uses tiny pictures, or icons, to represent (7) vessels @vary) : commands To execute these commands, the user clicks thecinouse on
the icon or presses a (8) (combine) of keys on the keyboard
Ry 1
69 Fill each gap in the passage with a suitable word from the
kind programs — lan guage courses
Today computer companies Se many different (1) for
‘ computers First, there are programs ‘for doing math (2) Second,
there are programs for scientific, Studies Third, some programs are like fancy typewriters They are ofteiy ‘used by writers and business people Other programs are made for (3) er in schools and universities And finally, there are programs for fun These include word (A) and
puzzles for children and | adults
Computer (5) 4S ›: can be funny at times For example, we say computers have a memory We know they do not really remember or think But we still, say memory Also, on many (6) programs there
is a menu Of course, we are not talking about restaurants or food This is
a different (Te Xe of menu Another funny example is the mouse in some computers It is hard not to think about a real mouse when you hear the word But do not worry: there are no little gray animals in the (8)
ao
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Trang 570 Fill each gap in the passage with one of the words or phrases
from the box Remember not to use five of them _ &
OS ,
according to bring about coverage designed jun ` entertainment established eVeHfs in addition to means |
Television is one of man’s most important (ER: § thật 2ÿ 0à of
communication It brings (2) and sounds from around the world
into millions of homes A person with a television set can sit in his house and watch the President (3) a speech or visit as foreign country He
can see a war being fought and watch statesmen Ary to (4) peace
ea eee television, home viewers can see and leàrn about people, places , and things in faraway lands TV even takes its viewers out of this world
It brings them (6) of American’ s<astronauts as the astronauts
C < -« all these things, television brings its viewers a steady
stream of programs that are (8) A entertain In fact, TV provides
many more (9) programs han any other kind The programs include action-packed drams, light.comedies, sporting (10)
| ?'m sorry I didn’t Bhan you last night I was up t0 TH coaaae in work, ‘
A head ‘By ears C shoulders D.eyes
2, LAO Seale sees 3 Scope i in this country nowadays owns a television
A part ~- B.majority C.number D mass
3 Would YOU not using the office telephone to make private calls,
please ?, =>
A hate_ ye B dislike -C care D mind -.-
4 Teleyision has a not only to entertain people But also to inform
A “hecessity B respect | C duty D discipline
SE phoned the bank to how much money there was in my account
oN “A control B inspect C test D check
R& At the end of the day we watch a Iittle television going to bed
TỶ 56
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Trang 6A before B.then | C upon D during „5k
7 My phone is out of order, which is a | CG Sy
A hurt B nuisance C trouble D.ham A S
8 Give her a telephone number to ring she gets lost ‘ ` :
A whether B unless C in case D perha
9 If you have any concerning this * report please telephone the
A queries B requests C investigations ] D Gyishes
10 The interference on the radio was by weather conditions
A made B caused C raised s Đ happened
11 If you require any more about the holidayggease telephone us
A description B information C.news ~<” D facts
12: If I were you, sss phone and tell her you tÈ: toỉng to be late
l3 T tuuxza John, tell him 71] phone him later,
A you saw B you’d seen Cyyou’llsee D you see
14 Bob says there’s never anything worth’ ‘watching on TV but for
hours watching the football LS
A he’d sat -B he Is sitting, -C: ‘he’ tk sit -D-he sit
15 Don’t try to phone me By the time you read this letter, ,
A I’ve left B.I IS le C.I'llleave D.m learning
72 Fill each gap in the- genleiors with the correct form of the
word in capital letters y”
~] When you’ve .45 xthis book, you should have a basic knowledge of
2 Microcomputers are usually to operate SIMPLIFY
3 Companies.o often borrow huge sums of money to large-scale projects † computerize their business: FINANCIAL
4 There RFS Tmany -institutes that teach computer programming
Trang 78 The Banking industry has become more and more
COMPUTER <=
9 The components of a computer system operate only in ‘ toe
commands from the control unit RESPOND “<’
10 A programmer what the computer is to do, and without the
program the computer cannot process the necessary information, ”
DECISION
tl Computers have many nai characteristics that the dayman is
unaware of | DISTINGUISH
LẪu HP veseasasosseec of a new and larger installation me ‘result in a better
13 Information sent via a computer is faster than { “using thé sccm |
system of airlines or postal service ne EXPRESSION
14 There is a difference between an anateg ‘computer with a digital
15 Due to the advances in computer teofriology computer are
faced with a more challenging job: % >> DESIGN
1 We must save money“before we can think of buying a new
computer cà)”
A more very much S | B very more much
C much very more D very much more
2 The person who speaks « ‘on the radio is a
A radiator SB: broadcaster C loudspeaker D newsman '
3: CAM yOu sss a pound ? I need some money for the telephone box
A change” SY B exchange € give D spend
4 He said, “You _ watch TV all the evening if you wish.”
A shold B.haveto — ~C may D ought to
5 My father had the telephone .out of his office
A take B taking C taken D to take
6 “Ù m trying to remember their phone number.”
~Uy don Ty0u in the phone book 2”
xa A.lookitup B.lookupit C.lookup D look at it
A ‘Se takes Half hour to walk from here to the television station
A)
Tử 58
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Trang 88 I was in the middle of phoning Mary when we were —
A cut up B cut in C.cutdown D cut off wW
9 Listen ! The telephone ' | KX wy
A.isringing B.ring C rings D ringing , S
_ 10 You had your TV repaired last week, 7 £Y
A.hadn’t you B.didntyou C.hadn’tit —D didn" tit
Alex cospesanse about what he had heard , John telephoned his father -
A He worried B To worry C Worried D Apving Worry
12 This new computer is very wonderful It a lot of money
| A worths B is worthy of C is worthed ‘ Sb is worth
13 There is one TV program which is above int: popularity
A others B another C the other 5 D other
14 Violent programs on TV may have a bad = on children
A affection B.pressure C influence D power
15 “Was he disappointed ? “ `
“Yes , he found this TV program a
A bored B boring €, boringly D bore
machine would be Ever the (Ñ) (many) elementary digital machine
requires an arithmetical ( (or logical) unit, a (4) (store) unit, a control unit, etc For simple\problems this great quantity of (5) (equip) is
too complex h4
In contrast, an analogue machine need to be no (6) (many)
th aly the problem demands A slide rule, for example, is a (7)
— (perfect) respectable “information machine” of analogue type The
“Sx ff l As the control task becomes more complex, however, the
Se machine loses its advantage, and we begin to see a second Apicamenital (19) ere (differ) between the two types of machine The
59
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Trang 9analogue machine 1s a (11) (physics) analogy to the problem, and“ therefore the more complicated the problem, the more complicated they machine must be
The digital machine, on the other hand, is (12) (entire) ee
of the lnmit to:thie (l5) se (complex) of the problem or process ‘The third important difference is in their (14) (accurate) potential The
digital machine which deals only with numbers can be as: 5) sana
(precision) as we wish to make it : An on
car information COMPUTES £ “systems
shopping advice 7 messages “medicine ae SY
1 THẾ TUẾOHHPHREE will work the hậtii SEN lighting in people’s
2 Computers will be able to send eléetronic ¬— around your offices,
Oy
the country and even the world &S
3 Computers will drive your
4 Micro systems will give đà help and with your problems
When you are ill, for example, they will tell you the best :
5 You will be able to do;your — from home You will choose and
pay for things by entering The:FipHÍ se into your home computer
6 What else do you think people will De:able fiUSEeess« for 2
2
76 Fill each gapin the passage with a suitable word or phrase
from the box
\ —"
[ “software computers screen word processor
Đ “hardware calculator keyboard _ printer
% -thachines themselves are called the (3) and the programs that you
RS feed into them are called the (4) If you want to see the results of
Trang 10what you are doing, you'll need a (5) : or you'll have to plug in to a television set You'll operate your machine like a typewriter by pressing.)
keys on the (6) If you want to record on paper, you’ll need a(Ty
ty ki , and if you want a machine which will enable you to see, arrange and then print a page of material, then the machine you wane (8)
“eae YOu want colour 2? Well, you can ([ => `À
\ ` _} Sf
77 Filleach gap in the sentences with the yoremnifin of the
1 It took him three years of to become an efficiéat programmer
<<) TRAIN
2 There have been developments in the field) of computer science
Sis vawweweanes is a branch of mathematics for makidg ì —_— without the use of
4 Students’ lack of understanding of the basic concepts in computer science may the instructor to restr ucture the course
& NECESSARY
5 It is practically impossible tog i the speed at which a computer
calculates numbers cÑ á IMAGINATION
Gs ggưdaa and subtraction are two Sasic mathematica! operations
7 It is sometimes a yery” TT process getting into a computer
installation for security reasons | COMPLICATE
8 Computers can do math ematical operations quickly and
12 They 1S always a > of labour within a computer company
13 @mputers TS crccnnes: with speed and accuracy ASSOCIATE
;44) 'Computers can solve problems faster and more than humans
61
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Trang 1119 HE HÀ qua interest in discovering new areas where computers _
78 Choose the best answer =x
A An emergency was there ay
B Should there be an emergency &
C Was there to be an emergency © OR
D Were there to be an emergéncy ae
2 The BHÍ ;esøse is answering the phone is my sister aS 5
A which B whom C who Oy XD whose
3 Tom wants to sell the television boughtlašV year
A which B it C that? D he
4 Nowadays computers are used all the world
5 I’m tired of pictures in black ands white | wish | had a
A coloured B colours Sớc colour - D colouring
_A Bell invented telephone) nearly a hundred years ago
B Bell invented the telephone nearly hundred years ago
C Bell invented the ‘telephone nearly a hundred years ago
D Bell invented telephone nearly the hundred years ago
7 “Hello Is Mr Smitlin ?”
“He’s not in this department, Please dial the same number, but ask for
_ A, expansion B extension C dureition D continuation
8 He’d rather read books than to the radio
A listen B.tolisten ~C listening D.listened
Đua ‘With her?“ “By telephone.”
AÁ Did you get in touch B How did you get in touch
AL e Why did you get intouch — D Will you get in touch IS his homework, he decided to relax by listening to the radio
Œvr A Tocomplete -B On completion
~ C Have complete D Having completed
G St t We must get someone’ -ourtradio-set-at-once
Trang 12A repair B repaired C to repair D repairing A
12 They forthe software programs they have sold *Y
A should be responsible B responsible aoe
C should responsible D should be response _—
13 When did you have Windows 2000 into your computer ?, ak
A to install B installed C installing D install > S”
14 Public television stations are different from commercial stations sitwavits
A because they receive money differently and different types of
B for money and programs types ©
C because the former receives money and” Phas programs differently from the latter ˆ °
D in the areas of funding and programming
15 That ts - last year” s telephone directory It’s ook date now
~
UA into B besides C out bof D out
79 A) Match each phrasal verb in; List A with its synonym in
List A “SY List B
7 hold on ie ¢ , g replace the receiver
10 put through= ` Sự j wait
x -
B) Complete one of the sentences with a suitable phrasal verb in
List A, In one case you need to use the correct form
1 The telephone’ s ringing Why don’t you the receiver ?
Zi Fm Afraid she isn’t available at the moment Can VỚI ae later ? 3.-Can you their number in the directory, please 2
Trang 134 I’m afraid she’s with the client, shall I you tne HỘ: hết,
5 Hello ? Are you there ? 1 think we were for a moment Pos ) ,
6 Mr Green never seems to be in his office I’ve been trying to `
7; Could YOU sees for a moment ? I’ll just find out for you <
6 If the telephonist says “Thank you very much for calling” and 'plays me
- that awful electronic music again, I’ Il .5, RQ:
9 If you get a wrong number, it’s polite to say “I’m sor € ve dialled the
wrong number” before you Qà
10 If an American telephonist asks “Are you through 2 she wants to
information progress — science * “và ¥ SUCCESS communication
medicine _position | ẤN lechnology_ serVice l
SS
RADIO- ELECTRONICS TODAY
Much of our (1) @ im the field of space research is due to ~ radio and electronics Today, radio or more widely electronics, a very
young and a very promising nr , has become a powerful tool of
~~ It will give usa —_ (3 J orvssaewen of the properties of outer space Radio has already, helped man to learn more about the sun’s atmosphere,
the atmosphere of 1 many planets, it enables our cosmonauts to locate their
(AY ecasszes: in space, and there is radio communication not only between
the spaceships~and their home bases, but also between the spaceships
‘themselves yy
Radio is not the only carrier of (5) in space There are -Infra- red ` Yand ultra-violet radiation, X- and gamma-rays, elementary
particles and fields, etc The time is not so far off when these and other
carriers will be used for space (6) —a great advance comparable
„ 4vith scientists’ achievements in putting radio waves at the (7) of
ma ankind, when he built the first radio receiver
KY”
, 64
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Trang 14There are - many more uses for electronics besides “<
= aN
communications A good deal! of (8) -made .in-space would.-noty have been possible without electronic computers making thousands upon”
thousands of operations a second They solve logical problems, supply
information on many aspects of science and (9) , translate “from
one language into another, automatically control industrial processes, ‘etc
Eh (TỦ) s-seee: electronic devices help to diagnose the disease and find the-
Although it is true that the computer operates: with (3) (electron)
swiftness, this is not its (4) (many) outstanding characteristic It is
the automatic sequencing of its internafF'(Sỳ DeoWGavS› (operate) that makes
the computer something more than just‹a kỉng-size adding machine What
would be the use of a machine rte of thousands of (6)
| ]rgaaean (operate) punch the key /bì Sard fast enough to keep the computer
supplied with (8) (datum)- and to control the internal operations ?
Obviously not The automatic digital computer must, therefore, (9)
(content) a memory unit capable of holding large amounts of data and (10)
Xà 4š'gước (instruct), and these: must be automatically extracted from
memory as they are needed
Because computers employ two-state (‘ 'on-off” ) type of circuits, data and instructions must be handed in binary form The binary system
oys only two symbols, 0 and 1, and (11) (vary)
(this) symbols are used to represent numerals and letters of " Enipbobet Several such representations are shown below:
Trang 15alphabet, the numerals from 0 to 9, (14) (punctuate) marks, and, other special symbols In world practice there is a code now employing > seven-bit groups Since there are 128 seven-bit combinations, this oN handles all the (15) (alphabet) and numeric characters and special
symbols and leaves many other combinations to be used for ‘special
5 LIKETOBY : 6 CRAGSHIP ^' ` :
`
83 Fill each gap in the sentences witha suitable word or phrase
"ey
| keyboard menu soft tware microprocessor
‘modem — monitor mouse operating system `
printer RAM (Random Access Memory) RC 2M (Read Only Memory)
RS C
dạ: SÂ: ngay¿ằ is what youruse to input information into the computer It
~_ works like a normal ‘typewriter _ Tội DI di ow: IS whefe, you place the disks to start the program
Su THE aca: shows“what you type and the computer’s calculations
4 The is’ awhiat you can actually see
5 The «1S@ ‘list of information that lets you choose what to do next
6 The SS used for making hard copies of what you can see
7 | nformation i is stored outside the computer on
8 Many modern computers have a , with which you can move an
arrow to point at different parts of the screen
9 “Thờ — is the heart of the computer and controls everything it does
He: ease is another term for the programs you use on a computer
ye a emenne is a device which connects a computer to a telephone line
Gidi thiéu trich doan boi GV Nguyên Thanh Tu WWW.FACEBOOK.COM/BOIDUONGHOAHOCQU
Trang 1612 As an alternative to putting information on a floppy disk you can use a“ ia N
C) Ỳ
eeereeeeee «
13 are chips in the computer with permanent instructions and
14 The is a complex set of instructions which tells the computer
Ve wrens is the facility the computer uses to store programming information temporarily The bigger this is, the more com licated the tasks the computer can carry out | =
1 Did you see the first of the new Agatlia ‘Christie on TV last
A serial B series É, episode D story
2 I was ill all day yesterday, sol just sat ahdk: television
A saw B watched C<noticed D looked at
-3 I had a headache after the film becatise” I was sitting too close to the
television cóc SS
A view B glass ” C window D screen
4 Did you see that fascinating ‘wildlife DrObram «»- television last
5 Football is very in the world Most of the matches are televised
A likely _B popular C pleasing D interested
a ‘to get through to Jackie for days now Either she’s away or her telephone is out : of order,
A | tried 4 »” | B I had tried
C I'm trying D I’ve been trying 7.My TV oe has broken down twice already
A: win I bought only last year
Be that Ï bought only last year
®& which I bought it only last year
=
aoe I bought only last year
` 8 Hè “hung up in the middle of our conversation, absolutely
Trang 17~
9 Because of TV, people are better about what is going on in the«
world than they used to be SYS
A instructed B.educated C informed D prepared
10 My cousin was nervous about being interviewed on television, oi
A event B performance C incident D occasion l1 receipt of your instructions, 1 immediately sent a telex
message to Algeria a
12 He phoned to tell me that he couldn’t come tomorrow because he
A was going B.hadgone C would go.) “D went
13 Can YOWS sccm the BBC World Service on your new radio ?
A put on B taken in C pick up D get at
14 Although he didn’t actually say he wate a radio for his birthday he
ĐẾN Hee pretty strongly A
A imply B suggest z © mention D hint
LS] WAS scesiexs in the book I was reading and didn’t hear the phone
A distracted B engrossed,” C submerged _D gripped
A Oe "`
85.-Fill each gap in the sentences with the correct form of the
word in capital letters ~~ NN
1 AÁ compufter IS V€FY ;› „ machine POWER
2 Microcomputers are ¢ SY cheaper than mainframes GENERAL
3 There are car manufacturing plants that are operated by robots
Trang 189 There will probably be a Great in the consumption of oil in the’
next century due to the use of computer technology REDUCE “` |
10 A compufer processes prepared items of information ay
SPECIAL «<
11 It takes a lot of inspiration and hard work to come up with a a ‘new
_— in computer technology | CREATE
12 Computer graphic applications are by the size of the: screen
| 2! RESTRICT
13 The future will bring great in the mechanical devices associated
14 My calculator is It plays a tune on the hour, “PROGRAM lbeszsse: was introduced by Gutenberg in Germany, in the 1400s
regulate the flow of fuel, thereby increasing gas mileage Computers
also entertain, creating digitized sound on stereo (5) or computer-
animated< features from a digitally encoded laser disc Computer (6) iiss tr? or applications, exist to aid every level of education, from programs that teach simple addition or sentence construction to
advanced calculus (7) use computers to track grades and prepare
% chotes; with computer-controlled projection units, they can add graphics,
Trang 19scientific research to solve mathematical (9) » display - «
‘complicated data, or model systems that are too costly or impractical to 2.) build, such as testing the air flow around the next generation of space > :
shuttles The military employs computers in sophisticated (10) sos SO”
encode and unscramble messages, and to keep track ‘of personnel “and
x:
$7 Fill each gap in the sentences with the correct form of the
word in capital letters Q
1 There are many computer-related jobs in TRE New York Times
4 The introduction of the computer in the workplace has the
5 A programmer usually has a *.as well as a logical mind
8 The computer’s memory IS eapable oÍ- ««.: a lot of information for a
9 Do you have aa to the student files in the database?
10 One of the ae of a good computer programmer is to have a logical
11 compl 4 are capable of storing a Jot of information by it on
12 The kh hy of new microcomputer systems on the market has Appreased the competition, forcing the prices down APPEAR
14 _— a computer in a company is the work of technicians and_
Trang 2014 A computer has- no on the number of times it can repeat a
15 Computers are used to control mechanical operations in the Car
industry so as to increase | a PRODUCES,”
58 Complete the sentences by adding one missing word ì in 1 each line of the puzzle All the words are connected - -with the
1 Hello This is Louise Bonnard Can I help you ? 2
2 Could you the line fora momeiit, please ? *>z
3 Hello, switchboard 2 Can I have an line, please ?
4 What is Miss Fisher’s number ? 5
5 Can | leave a ‘for-Sarah Grey, please7?—
6 To make a call from a public telephone, ltt the Hy and insert a coin
7 ('msorry, | can’t hear you very well, thế ÍSa line
8 Could you give me a tomorrowsmor ning ?
9 The number for ‘enquiries in, the UK i is 192,
10 She’s in a meeting, I’m afraid Can Tbe of any ?
II Some public phones take Coins others take
Trang 21‘Computer (1) (use) can prepare for a viral infection by creating =< backups of legitimate (2) (origin) software and data files G) &
SöGUGg (regular) so that the computer system can be restored ¡f (4) =
(necessity) A floppy disk with a copy of the operating system software”
can be made and its write-(5) (protect) notch activated so that no virus can write onto the disk Viral (6) (infect) can be prevented
bY I) suớa (obtain) software from legitimate sources, “Using a quarantined computer to test new software, and using the write-protect
notches on floppy disks (8) (when) possible QC
transport and organs of finance will fundamentally change national economic management Controlled by cybernetics, industrial enterprises
will operate at the most efficient peak This, in turn, will effect
tremendous (3) of time and resources
The comparatively simple methods of (4) used for some
technologies will become more and more complicated As production
techniques become) more efficient, they can be more effectively controlled, with the (5) of raising the quality-and the quantity of manufactured ø goods and improving working conditions
Despite the numerous results of (6) into cybernetics,
opening úp, -breath-taking prospects for science, industry and economics generally, it is still hard to predict the achievements this wonderful (7) ceeesssssỀ šmlay make in the near future, since the pace of technical progress
IS exceptionally great and continually increasing
Trang 22The advance in the technical progress is the outcome, primarily =
of the talent, inventiveness and the effort of man - this great remake) and (§) se of nature
(develop) of certain (3) (base) techniques later used i in the design
of the first electronic (4) (digit) computer, ByiAc (Electronic Numerical Integrator and Computer) While (5) -4, (teach) at Iowa State College, Atanasoff built a simple vacuum tube (6)
(compute) device that he showed to several people, CT) khu (include) one of the later builders of ENIAC, but he did not (8) (success) in marketing his own device A 1971: lawsuit by an electronics firm against
a (9) (rivalry) firm holding the” ‘patent on ENIAC principles, however - on the grounds that AtánaSoffs ideas had (10) (be)
used without being credited - led: to TE LÍ Ì quuởnae (invalidate) of that
_v⁄ THE ROLE OF COMPUTERS
Decker Walker maintains that few people really know how to use
(1) .4 Well for educational purposes Seymour Papert, the inventor of Logo and author of Mindstorm, argues that the computer is a (2) of
expression and should be used to build a sense of inquiry, to “mess
about”, to explore, and to improve thinking skills He also argues that the
` of computers on learning will not come about throne
is
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Trang 23the real impact will only come when students are taught how to program, <
because programming requires that they think logically and solve 4Š"
" When they learn how to program, “the word is only for very
We are in the midst of an “information explosion”, the: generation
and availability of an ever-increasing (5) of informations ‘through
the use of the computer People can participate in this (6) sat three |
or four levels of computer knowledge: (a) computer ltexaey, general knowledge of what computers are used for and some general cerca in using them; (b) computer competence, ability to use the conjputer as a tool for particular (8) ‘and (c) computer expertise, knowledge of how
computers work and how to program them A new) fourth level is a computer hacker, who is more than an expert - he or’she spends days and
even nights working on games or problems, tr arismitting CD): nnodierener across the country or across oceans, devising ingenious games and software to sell, and/or swapping new software among f fellow hackers In general, the hacker is freewheeling and addictive to the ‘computer ferment |
As educators, we should aim tmaking our (19) veveeeanee computer-
literate at an early age and view computer literacy as “a fourth R” or a fundamental skill Several (11) AS arise, however How computer- competent are teachers ? Should every teacher be computer-competent ? Should every teacher be at least computer-literate ? Should we expect only a few teachers in each (12) severest’ to have the skills to teach students how to use the computer? Should only a few teachers have the skills to
use the computer as an instructional aid ?
A teacher can become computer-literate in a workshop that meets
for a few practice (13) eee The time spent in training is not critical to
the teacher’s (14) , ` to use the computer as an integral part of the teaching day; tiế- key factor is the (15) of the teacher If the teacher
is hesitant about using the computer, many children will pick up on this attitude If the teacher is enthusiastic, children will learn more eagerly and
more easily According to one educator, a 15-hour workshop laboratory experience reduces learning anxiety (fear of helplessness in dealing with computers) from above average to below average anxiety and increases
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Trang 2493 Fill each gap-in the sentences with the correct form u.the “
word in capital letters iS)
L7 sen: from an old computer system to a new one can be tin“
2 The applications of all the pee students were by the coiPbter
PROCESS
3 It took the programmer one week to complete the eS of the
4 Both and data have to be changed to machine: code before the '
5 When buying a system there is often no ( ,% charge for the ~~ yf
`⁄
6 There is sometimes very little tobe made between two different brand-new microcomputers ey COMPARE
7 Business in different cities often communicate with each other
Tu Senneuasea is very inportant in any service industry EFFICIENT
ne seesees have taken place, dn computer technology in the past
10 It is possible that by the year 2000, t.AN HS seseeee person will have to
have a good knowledge of computer science EDUCATE
11 The use of BỀN HIENG in business BAS: senecvee the workload of many
` J2, SHNIGIIES 8TE:::: , ` ‘Know how the computer operates
lỐc su lạ “SHE 4 chip made it possible for minicomputers and
14 He submitted: | ss-osocxe version of the program to be keypunched
Trang 2594 Read the passage and fill each gap with one of the words or —
phrases from the box S
then in frontof so that so _ onthe other hand =
_ The sending of images through the air, or television? is of about
the same age 4s radar Both use waves so high in frequency that normally they are not reflected back to the ground by the upper atmosphere For this reason television signals have a short range - usually from the transmission antenna on the horizon to a receiving antenna on the opposite horizon (1) , radio signals can be reflected off the atmosphere and so sent half-way round the globe, Ỳ
There are three stages in televising w ‘picture: (a) forming and
analyzing the picture in the camera; (bỳ-sending the signal from the studio and receiving it in the TV set; (@) réconstructing the signal into a
picture on the screen _ ake’
The picture is formed by_ a television camera in the studio TV cameras have a cathode-ray tube: (CRT) KĨ keexene inside face carries a
thin metal coating This coating‘is sensitive to light and has high electrical Sa
resistance It has a negative charge, KP when it is struck by light, electrons are knocked out from it into the tube The stronger the light, the more electrons are knoẻked free If one area of the tube’s face is very strongly lighted, the area: ›becomes more positive than the rest of the tube (4) Its losing soamany electrons |
The TV camẽra now carries an “electrical copy’ > of the screen (5)
¬— it This must now be analyzed by the camera In analyzing the picture the electron beam of the cathode-ray tube is passed through two
sets of “defle sctỉng plates” arranged at right angles inside the camera tube
The first set of plates makes the beam sweep back and forth across the tube’s face The second set moves the beam up and down as it sweeps across the tube’s face Each sweep - called a scanning motion - occurs
about 30 times a second, so that’the eye sees a continuos picture
ee ~ When the scanning beam strikes strongly lighted areas on the
A ‘metal coating of the tube’s face, the beam is partially absorbed But areas
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Trang 26(6) are dimly lighted strongly reflect the scanning beam The == reflected beams are (7) "drawn away-by-a positively-charged- platơ ` Nà
(conductor) inside the tube This completes the “analysis” of the picture, _ taken by the camera The electric message is now strengthened; or
amplified, and then sent out on a very high-frequency carrier wave< When the signal -strikes a TV antenna and flows into the set, it Anust be
reconstructed (8) it becomes a picture on the screen This ‘happens
inside the “picture tube”, a kind of cathode-ray tube with @ fluorescent
In the narrow neck of the tube is a heated fildment, a kind of electron gun that shoots electrons at the inside face, ‘of the tube The stronger the signal received by the set, the more electron bullets are fired at: the:screen.(9) - - this steady flow of electrons” leaves the filament it
- is focussed into a beam which sweeps across the fluorescent screen - in
perfect time with the beam that sweeps across the face of the tube of the
TV camera in the studio The stronger the-beâm, the more it excites the fluorescent coating of the picturé tube}\ and (10) the more light shows on the screen The rapid sweeps over the screen produce a picture made up of vast numbers of tiny grains ‘ighted and dimmed by a stream of
95 Choose the best answer
1 The BBC tries to for, all tastes with its national programmes
A suit B: furnish _C regard D cater
2 All three TV channels ] ‘provide CXIENSIVE excesses of sporting events
A.vision ,, 2B.coverage C broadcast | D network
3 Making private calls on the office phone is severely on in our department |
A frowned B criticized C pated D objected
4.0m phoniiet them again because | want to „the arrangements for
tomorrow
A ensure B make sure C make sure of D take care
S Don’t be It’s a bad idea to phone them while you’re angry
Wait until you’ve calmed down
ANY sloppy -B spontaneous C careless D rash
Trang 276 A friend I hadn’t seen for a long time rang me up, which was a very
A surprise —_B shock C wonder D astonishment -
7 On the computer system at work, information is every hour,”
A.renewed B.renovatd C updated D done up Ì
8 I couldn’t afford a new computer so I bought a(n) one .“S,
A old-fashioned B second-hand C outdated D and)
9 He changed jobs because he decided that being a compltgagroeramitier
A right B suited Catt OD) ‘convenient
10 I find it difficult to keep my if the television i is on while I’m
A.focus ~ B preoccupation C dedication D concentration l1 TheiE 'WRS Ga coverage of the story on alfthe television channels
A.complete B.extensive CC total - D absolute
12 Computers have had an enormous effect © SN Gse«ee our daily life
LẠ.” ca did he pay for his new computer ‘ ?” “About US $550.”
A How high B.How much,” ‘C How many _D How often
14 Do you think Tom enjoys : computer games ?
A play B to pláy ` C playing D played
15 Yesterday we did nothing but : TV |
A watching B watched C to watch D watch
96 Fill each gap im the sentences with the correct form of the word in capital letters
1 In 1960, the second generation of computers was ¢
DEVELOP,
2 The machidê carries GU CC E eeeee which the programmer gives it
3 Computer Nông is a new field at the university PROGRAM
4 The first two steps in your program are not They are basically
Trang 286 There is no for the speed at which a computer performs =` —
7 Before the computer can do the necessary computations for a probieety the number should be to machine code _ CONVERT *s
8 Today’s microcomputers are almost as powerful as yesterday’s* shinis, mainly because of man’s creativity with the advancement in
9 The binary system is on two digits: 0 and 1 BASE,
10 In most operations calculations, computers can ' ‘do the job
11 It is a good approach to the errors in your program before
running it with the data CS ˆ CORRECTION
12 The Central Unit is responsible for exec ing the programs
| : aS PROCESS
13, THRê of the computer salesman was ineasured by the number of
l4 ` a program is_ essential §ạ: that other prograiimes can
15 Our math explaincd to us the’principles of binary arithmctic
97 Fill each blank in the intences with one word or phrase
area code (US)/dialling cou (GB) badline busy (US)/engaged (GB) collect call ( US)/transferréd charge call (GB) dialing (US)/dialling (GB) enquiries IDD/imer rational direct dialling off the hook out of order outside line person+to-person call (US)/personal call (GB) _ insert phone book/directory receiver switchboard operator
“'m^ “sorry to trouble you, | think I must have got the o
“Pm Sorry, I can’t hear you very well, this is a
‘{ean’t get through, their line always seems to be o
ve Sif you don’t want to be interrupted by any phone calls, you can leave
Trang 296 If you don’t know someone’s number you can use the or you «<
7 To make a call from a public telephone, lift the sifWsxesseex a coin
Listen for the tone and dial the number You will then hear ‘i
tone telling you that the number is if you ve misdialled, ‘you’ il hear a tone eens you that the number is or that the tine is
8 To BÍ: a call by from the UK; first dial the iesftribnal code (010), then the country code, then the and finally ‘the number
9 “Operator, I’d like to make a to New ee please My name is
10 “I'd like to make a to Mr Bob Hill on this Sumber: 4568901.”
11 “Hello, is that the switchboard ? This is extension 67, can I have an
» % +
A
\
98 Choose the best answer for thevinderlined word(s)
1., Because of advances in kfrnuitpfftnelogy in recent years people
are enjoying more leisure À
A.freetime _B business’) ~ C new thíngs D money
2 Mr Brown can not afford a new ‘computer this year -
A ride | B share ˆ C sell D buy
3 Alice called up her new friend yesterday
A visited Bs telephoned C.talkedto D blamed
4 Hold on while | call Jane to the phone
A.Read _, B.Sit ~ C Wait D Stop
5 Are typewriters, fast becoming obsolete with the advent of computers? —
A outmoded B complicated C neglected _D disdained
6 Television, and newspapers are the primary mediums of advertising,
with radio.a fapidly fading competitor
An formulations B means C averages ~ D sources
1: Public» ‘service announcements on radio and television are provided free of charge to qualifying agencies |
-Ầ A.delivertes B.adverttsers C regulations D statements
8 Students beguile their leisure hours in computer stores
%; Y A cause time to pass unnoticed B waste regrettably
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