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Toefl ibt internet based test 2006 - 2007 part 48 ppt

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Complete the summary by selecting the THREE answer choices that mention the most Important points in the passage.. • • • Answer Choices [AI The accuracy 01 weather prediction will im

Trang 1

324 MORE MOOEL TESTS

14 According to the passage, it will be diffIcult to predict weather

<D unless we learn more about chaotic systems

CD because we don't have enough weather stations

<t:> without more powerful computers

<D unU1 we understand the physical laws 0 1 atoms

15 The word assumed in the passage is closest in meaning to

CD agreed

CD supposed

CD revealed

<D expressed

16 The word fundamentallY in the passage is closest In meaning to

CD typically

CD historically

CO presently

<D basically

17 Why does the author mention a car In paragraph 27

CD The car Is an example 01 how conditions are used to make predIctions

CD The author digresses in order to tell a story about a car

<t:> The car Introduces the concept of computer models

<D The mathematical equations lor the car are very simple to understand

Paragraph 21s marXed with an arrow (-t)

18 Why do the predictions disagree for the computer model described in paragraph 4?

CD The condItions at the beginning were very different

CD The model was not accurately programmed

CD Computer models cannot predict weather

<D Over time modets are less reliable

Paragraph 4 is marXed with an arrow [ )

t9 Why is weather considered a chaotic system?

CD Because iI is made up 01 random leatures

CD Because ills not yet very well understood

CD Because ills described by nonlinear equations

$ Because it does not have an orderly structure

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MOOEL TEST 4IREAOING SECTION 32S

a> Slight variatiorls in initial conditions can cause very different results

a> A butterfly flaps its wings In one location, which automatically produces a result in another place

21 The phrase in which In the passage refers to

CD> linear equations

(!) To contrast a simple system with a chaotic system

CD To compare nontlnear equations with linear equations

a> To prove that all nonlinear systems are not chaotic

Paragraph 6 is marked with an arrow (-+1

Cl> problems

CD> benefits

(!) will never allow us to make accurate predictions

25 Look at the lour squares r_ ]lhat show where the following sentence could be inserted in

the passage

For nelrt week's weather, the new model may yield a slightly dlffentnl prediction

'" ,'"

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32t1 MORE MOOEL TESTS

26 Directions: An intr~uction for a short summary of the passage appears below Complete

the summary by selecting the THREE answer choices that mention the most Important points in the passage Some sentences do not belong in the summary because they

express Ideas that are not Included In the passage or are minor points Irom the passage

This question Is worth 2 points

Because weather Is a chaotic system, It Is very difficult to pl'$dlct

Answer Choices [AI The accuracy 01 weather prediction will

improve as we make progress in the

appllcatloo 01 computers to equations

[BJ It is very easy to make predictions about

the location 01 a car when you know

where it is and how last Ills QQlng

!DI Because weather is chaotic but not ran· dom, it may be described by nonlinear equatioos that provide lor sensitive Inter·

acHons

[CJ A slight variation in Initial conditions will

cause a very different prediction for

weather over the long term

lEI The economic system demonstrates chaotic behavior, and it must be repre-sented by a nonlinear equation

[E) Weather is predictable only within a time frame of a few weeks because of the nature 01 scientific prediction

Helldlll,3 "BllJldlllf wItIJ ArchtJs"

Round Arch and Vault

-+ Although the round arch was used by the ancient peoples 01 Mesopotamia

several centuries before our common era, it was most fully developed by the

Romans, who perlectacl the form in the 2nd century e.C.E The arch has many

virtues In addition to being an attractive form, it enables the architect to open

up lairly large spaces in a wall without risking the building'S structural

sound-ness These spaces admit light, reduce the weight of the walls, and decrease

the amount 01 material needed As utilized by the Romans, the arch Is a perlect

semicircle, although it may seem elongated if it rests 00 columns It Is con·

structed from wedge·shaped pieces of stone that meet at an angle always per·

pendicular 10 the curve of the arch Because of tensions and compressions

top-most stone the keystone has been set In place For this reason an arch under

conslruction must be supported from below, usually by a wooden framework

Ma1e ehrancnv a ' rro pravv

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MODEL TEST 4IREAOINQ S ECTION 3.27

-+ Among the most elegant and enduring 01 Roman structures based on the

system 01 public-works projects , not just i n Italy but in the ou tly ing areas as

trans-porl water, and its lower level served as a footbridge across the river That it

cyclists on the route of the famous Tour de France bicycle race) testifies to the

Romans' brilliant engineering skills Visually, the Pont du Gard exemplifieS the

best qualities of arCh construction Solid and heavy, obviouSly durable, it is shot

-bilities effortless

placed nush one behind the other-the result is called a barre l yault This vault

made great use of the barrel vault, but for its finest expression we look many

-+ The church of Sainte-Foy, in the French cily 01 Conques, is an example of

the QaXjl of Sainte-Foy

Pointed Arch and Vault

,

soaring, majestic space we see in

draw-backs For one thing, a round arch to be stable, must be a semicircle;

therefore, the height 01 the arCh is limited by its width Two other diffICUlties

were weight and darkness Barrel vaults are both literally and visually heavy,

calling for huge masses 01 stone to maintain 1tiiil structural stability Also, the

around them, for fear the arches and vaults would collapse, and so the Interiors

of Romanesque buildings tend to be dark The Gothic period in Europe which

The pointed arch, while seemingly not very dilterenllrom the round one,

olters many advantages !Ell Because the sides arc up to a point, weight is

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328 MORE MODEL TESTS

a barrel vault !CJ ArChitec1S 0 1 the Gothic period found they did not need heavy

masses 01 material throughout the curve 0 1 the vault, as long as the major

points ol lnlersection were relnforcsd !DI

Glossary

nave: the long central area in a church with aisles on each side

27 Why does the author mention U1e keystone in paragraph I?

<D To explain the engineering 01 an arch

a:> To provide historical background on arches

CO To point out one of the virtues of arches

CD) To suggest an alternative to the arch

Paragraph 1 is marked with an arrow 1-+1

26 The word inberenl in the passage Is closest In meaning to

<D uncertain

a:> unsatisfactory

CO expansive

G) essential

29 The Pont du Gard mentioned in paragraph 2 has all 01 the following characteristics EXCEPT

<D It was an aqueduct

a:> It is s ll being used

CO It was built 2000 years 8g0

CD) It was repaired recently

Paragraph 2 Is marked with an arrow I -+ J

30 According to paragraph 3, what is the advantage 0 1 a barrel vault?

c;p It was used in UIS Middle Ages

a:> Many arches were joined

CO The space was larger

<J) It was a typical Roman look

Paragraph 3 is marked with an arrow [-+]

31 The word virtually in the passage is closest in meaning to

c;p obviously

a:> accurately

CO routinely

G) practically

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MODEL TEST 4IREAOING SEcnON 32i

32 What can be inferred from paragraph 4 about Romanesque architecture?

<D Wood beams characterized the buildings

<D The structures were smaller than those of Roman style

aD The architecture was popular during the Roman occupation

33 Which of the sentences be f ow best expresses the Information in the highlighted statement

([) Architects wanted to build higher ceilings In churches , but they were limited because

of the fire hazard caused by wooden beams in the roofs

<D Tho majority of tho churchos prior to th i s t i mo woro constructed with woodon foofs thaI caused a considerable fire hazard because of their height

<D The wood beams In the roofs of most churches befo r e this period were a concern

because of fire and the constrainl5 !hey imposed on the height of the ceiling

<lP The l imitations on the architecture of the churches were a result of the construction materials al'ld the limited vis i on 01 the archltects

34 The word achiBvB in the passage is closest in meaning to

CD accomplish

<D decorate

(It) finance

35 Gothic architects eKtended the height 01 their arches by

CD designing pointed arches

<D including a nave

aD adding windows

36 The word lhI'I.k in the passage refers to

CD builders

CD stone

aD vaults

([) It was a characteristic of construction with pointed arches

<D It was 100 difflCtJlt to make windows in Ihe heavy materials

<D Openings for light could have compromised the structure

<lP Rein forcements covered the areas where Ughl could shine in

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330 MORE MOOEL TESTS

the passage

the right Select the appropriate answer choices and drag them to the type of architecture

to which they relate TWO of the answer choices will NOT be used This quttar/on Is

worth 4 points

To delete an answer choice, click on it To see the passage click on View Text

Answer Choices

I!l Allowed architects to

create a taller arch

IS! Used in fortresses so that

the soldiers could see out

style of architecture

~ Similar to arches constructed

in the ancient world

IE! Popular in many structures 01

the Gothic period

materials for construction

!GJ Prevalent in churches during

the Middle Ages

!8J Associated with structures

that inClude barrel vaults

rn Permitted openings In or

around them lor light

Round Arch

• Pointed Arch

M fir chr, ~y,' k prAY\!

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