It's time governments ______ something to limit population growth.. Because I don't have enough free time, I can't help my mother with the housework.. 'If I don't practise my English I w
Trang 1More exercise (ADDING) - Unit 7: WORLD POPULATION
1 more information, please telephone our main office
a If you will need b Should you need c You should need d If you needed
2 It's time governments something to limit population growth
3 I'd really like to do accounting If only I so poor at maths
a am not b weren't c hadn't been d wouldn't be
4 She wouldn't have gone to university
a if her parents had insisted b were her parents not insisted
c unless her parents had insisted d only if her parents hadn't insisted
5 John said if he any money he me a drink
a has - will buy b had - would have bought
c has had - would buy d had had - would have bought
6 If it more humid in the desert of the Southwest, the hot temperature would be unbearable
7 If it keeps on raining, the basketball game ought
a to postpone b to be postponed c postpone d be postponed
8 Only if you get the theater early _ a chance to get a ticket for tonight's performance
a you will have b have c you have d will you have
9 If she sick, she would have gone out with me to the party
a hasn't been b wasn't c weren't d hadn't been
10 been diverted, they would have arrived early
a Had the plane not b Hadn't the plane
c The plane had not d The plane not had
11 If the ball the line, that would have been the end of the game
a would cross b will cross c had crossed d crossed
12 ………interested in that subject, I would try to learn more about it
13 It would have been a much more serious accident …………fast at the time
a had she been driving b was she driving
14 “Can I borrow your car for this evening?” “Sure, but Nora’s using it right now If she………it back in time, you’re welcome to borrow it”
a brought b would bring c will bring d brings
15 I didn’t get home until well after midnight last night Otherwise, I … your call
a returned b had returned c would return d would have returned
16 If someone knocked a candle over, it a fire
a will start b started c would start d would have started
17 If you told us about the bad service, we would have eaten there
18 What would Tom do if he the truth?
19 If I you were sick I would have called sooner
20 If there a row, I’m going to keep out of it
21 If I you, I’d call and apologise
22 Jack will win the election if he harder
a will campaign b would campaign c campaigned d campaigns
Trang 223 If I could speak Spanish, I ………next year studying in Mexico.
a would spend b would have spent c had spent d will spend
24 If I ……….the same problems you had as a child, I might not have succeeded in life as well
as you have
25 I ………you sooner than someone told me you were in hospital
a would have visited b visited c had visited d visit
26 ………… more help, I could call my neighbor
a Needed b Should I need c I have needed d I should need
27 ……… then what I know today, I would have saved myself a lot of time and trouble over the years
a Had I known b Did I know c If I know d IF I would know
II Choose the underlined part that needs correcting:
28 If the question were not so difficult, I will be able to answer it
29 If I were you, I didn’t buy that old building
30 I get a bad mark I wish I did my homework last night
31 The house painted more than three years ago, but I’m not going to have it done again for a while
32 Some mistakes were made in the brochure, but they might corrected before you get back
33 If you were here yesterday, you would have seen Jean
34 We should visit that part of the country if it will be spring
35 If I will make a difficult decision, I always discuss it with my friends
36 We could had done more if we had had more time
37 He said that if he has more time, he would come to see us
III Put the verbs in parentheses into the correct form
38 If the woman (say) what she wanted, I wouldn’t have put the phone down
39 If they arrived in time, they (see) the ceremony
40 If you (ask) me, I would explain it to you
41 If someone (walk) in here with a gun, I would be very frightened
42 I’m sure he (understand) if you explain the situation to her
43 If she hadn’t walked to the meeting, she (not be) late
44 He always (complain) if I’m late
45 If he spoke more clearly, we (understand) him
Trang 3IV Using the given information, make conditional sentences Use "if".
1 I don't ride the bus to school every morning because it's always so crowded
_
2 The schoolchildren sowed some seeds, but they forgot to water them so they didn't grow
_
3 Stop talking or you won't understand the lesson
_
4 The wind is blowing hard, so we won't take the boat out for a ride
_
5 Carol didn’t answer the phone because she was studying
_
6 I feel better now because you talked to me about my problems yesterday
_
7 Because I don't have enough free time, I can't help my mother with the housework
_
8 Rita is exhausted today because she didn't get any sleep last night
_
9 I didn't prepare for today's lesson: So it is difficult for me to understand the teacher's explanation _
10 I don't want them to be upset, so I've decided not to tell them what happened
_
11 Martin failed his driving test last week because he was very nervous
_
12 Go' right now or you'll be late for the train
_
13 Sally doesn't know what she has to do for homework because she was absent from school on Friday _
14 Olga and Ivan weren't paying attention, so they didn't see the sign marking their exit from the highway
_
15 Paulo is working on two jobs right now, so he doesn't have time to help you with your remodeling _
V Change the following conditional sentences into reported speech.
16 'If I had any money I'd buy you a drink,' she said to me
_
17 'If I catch the plane I'll be home by five,' he said
_
18 'You should stay in bed if you feel unwell.' my mother said
_
19 'What would you do if you were having a problem with grammar, Jane?' Anne asked
_
20 'If I'd had my mobile yesterday, I could have contacted you,' Matthew said
_
21 'If I were you, I'd stop smoking,' she said to her brother
_
22 'If you happen to be in our area, drop in and see us,' they said
_
23 'If the baby is a girl what will they call her? he wondered
_
24 'If I don't practise my English I won't get any better,' she said
_
25 'If you press this switch, the computer comes on,' he said to his students
Trang 426 'I'd have been in bad trouble if Jane hadn't helped me,' he said
_
27 'If you have time, wash the floor,' he said
_
28 'If the door is clocked what shall I do?' she asked
_
29 'If we had a calculator, we could work this out a lot quicker,' they said
_
30 'If you don't apologize, I'll never speak to you again.' he said
_
VI Complete the second sentence so that it has a similar meaning to the first.
31 Jack was late to the meeting because his watch was slow
If _
32 Heinrich regret not having gone to art school when he was younger
Heinrich wishes
33 We don't live in a big city, so we can't easily get access to the Internet
If
34 'If your job is so bad, why don't you leave?' she said
She _
35 I used my calculator; otherwise I'd have taken longer
Had
36 'If my car was working I would drive you to the station,' Tom said to his mother
Tom told _
37 Speak to her only if she speaks to you first
Don't _
38 If I weren't in my 70s and rather unfit, I might consider taking up squash
Were _
39 'What will you do if you miss your plane?' she asked
She asked
40 Return the product to the shop if you have any complaints about it
Should _
Read and answer the questions: GV tu dat cau hoi
1 No one knows the limits of population that the earth can support Thomas Malthus, an English economist, developed a theory that became widely accepted in the nineteenth century He suggested that because world population tended to increase more rapidly than the food supply, a continual strain was exerted upon available resources Malthus cited wars, famines, epidemics, and other diseases as the usual limitations of population growth
With recent advances in science and technology, including improved
agricultural methods and great strides in medicine, some of the limiting factors in population growth have been lessened, with obvious results
International organizations have put forward several recommendations to alleviate the problem of overpopulation, including an increase in food production, general economic development in target areas, and a decrease in birth rate Most experts agree that it will be necessary to combine all three recommendations in an effort to affect a lasting solution
2 The dramatic growth of the world's population in the twentieth century was on a scale without parallel in human history Most of this growth had occurred since 1950 and was known as the population 'explosion' Between 1950 and 1980 the world population increased from 2.5 to over 4 billion, and by the end of the twenty century the figure had risen to about 6.6 billion Growth of this size cannot continue
indefinitely Recent forecasts suggest that the total population will level out at between 10 and 15 billion
in the mid twenty first century Already there are encouraging signs that the rate of increase in many less developed countries is beginning to slow down
- scale: quy mo - without parallel: khong co gi sanh duoc