EXERCISE

1. He suddenly saw a waterfall. It was an impressive sight: the water seemed ____ straight out of the clouds.

  a. to drop   b. dropped  c. to be dropping  d. to have dropped

2. He intended ____ an accurate calculation last week.

  a. to make   b. to be made   c. to have been made   d. to have made

3. I am sorry to ____ the book for such a long time.

  a. keep   b. had kept   c. have kept   d. having kept

4. They appear ____ in the accident.

  a. was injured  b. to have been injured  c. to injure   d. being injured

5. She seemed ____ about it already.

  a. hear  b. hearing  c. to hear   d. to have heard

6. You seen ____ your health.

  a. to recover  b. to be recovering   c. have recovered  d. recovered

7. The next thing ____ is to oil the machine.

a.       to be done  b. to be doing  c. do  d. will be done

8. The old man is said ____ a very poor man when he was young.

a.       to be  b. he was  c. to have been  d having been

9. The gas seems ____ very quickly.

a.       having expanded  b. to have been expanding  c. to have expanded  d. to expand

10. The research was known ____ for over 20 years.

   a. to be going on   b. to have been going on   c. to have gone on   d. to go on

11. They were glad ____ something for the people.

   a. to have done  b. to have doing  c. to be done   d. to have been done

12. He asked ____ re-elected since he had been chairman for seven years.

   a. not to have been  b. not to be  c. to be not   d. to have not been

13. The satellite is always escaping from the earth ____ back by gravity the same distance it has escaped.

a.       to pull  b. to have been pulled  c. only to be pulled  d. only being pulled

14. Much research in this field remains ____.

   a. to do  b. doing  c. to be done   d. to have been done

15. In order ____ into space, a great force is needed to overcome the force of gravity.

a.       a satellite to launch       b. for a satellite to be launched

b.       for satellite to be launching  d. to a satellite is launched

16. The child pretended ____ what his patents were saying.

   a. to be not listening to   b. to be listening not to

   c. to not be listening to   d. not to be listening to

17. The first aeroplane is said ____ of pieces of wood and cloth.

   a. to have been made   b. to have made   c. to be made  d. to make

18. Every device ____ in the spacecraft must be designed and made with great care.

   a. to fit   b. to fitting   c. to be fitted   d. fitting

19. I meant ____ you about it, but I forgot to do so.

   a. telling   b. to tell  c. to have told   d. to have telled

20. That factory is said ____ three times as many radios as it did last year.

a.       to producing  c. to be producing  c. to be produced  d. to have been produced

21. ____ by the enemy is a good thing.

   a. To be attacked  b. To be attacking  c. To attack    d. Attacked

22. That old scientist is known ____ on this problem for about five years.

   a. to have being worked   b. to have been worked

   c. to have been working   d. to work

23. She was found ____ letters yesterday evening.

   a. to have writing   b. to being  c. to wrote   d. to be writing

24. When a machine is ____, suitable materials must be chosen for its parts.

   a. building  b. build   c. to build   d. to be built

25. Such engines are too heavy ____ in cars and aeroplanes at present.

   a to use   b. to be used   c. to have used  d. to using

26. A cure for cancer is bound ____ one of these days.

   a. to discover  b. to be discovered   c. to discovering   d. to being discovered

27. The enemy was reported to ____ by our army.

   a. have been surrounded   b. had been surrounded

   c. be surrounding        d. have being surrounded

28. She is said to ____ like that for many years.

   a. be working  b. have worked  c. have been working   d. work

29. The bank is reported in the local newspaper ____ in broad daylight yesterday.

   a. to be robbed   b. robbed  c. having been robbed   d. to have been robbed

30.“Did you blame him for his mistakes?” “Yes, but I ____so.”

a. rather not do  b. shouldn’t do   c. better not done   d. shouldn’t have done

 

 

答案：

III.   1.C   2.D   3.C   4.B   5.D   6.B   7.A   8.C   9.B  10.B

     11.A  12.B  13.C  14.C  15.B  16.D  17.A  18.C  19.C  20.B

     21.A  22.C  23.D  24.D  25.B  26.B  27.A  28.C  29.D  30.D

 

 

 

 

                       EXERCISE

1.She were often heard ____ this song when she was happy.

  a. sang   b. singing   c. sung   d. to be singing

2.At that time he couldn’t answer all the questions ____ by the students.

  a. raised  b. raising   c. to raise   d. having raised

3.These students are quick at learning. We’ll have them ____ in new methods.

  a. to train  b. train   c. training   d. trained

4.The manager promised to keep us ____ of how our business was going on.

  a. to be informed   b. by informing  c. informed  d. informing

5.____ in England, Anne Bradstreet both admired and initiated several English poets.

  a. Having born and educated   b. Since born and educating

  c. To be born and educated     d. born and educated

6.The painting ____ on the wall was painted by an artist.

  a. hung  b. hang   c. hunging   d. hanged

7. The news left me ____ what would happen next.

  a. wonder  b. wondering   c. wondered  d. have wondered

8.The new textbook, ____ compared with the old one, has many advantages.

  a. while   b. if  c. as   d. which

9.____ from this point of view, the question will be of great importance.

  a. Considering  b. Consider  c. To consider   d. Considered

10.Our institute has announced plans to establish a business school ____ the master’s degree in business administration.

   a. to be offered  b. to have offered  c. offering   d. to be offering

11.The steel thus ____ is suitable for machine tools.

   a. obtained  b obtaining  c. obtain   d. to obtained

12.There was so much noise that the speaker couldn’t make himself ____.

   a. hearing   b. to hear   c. heard   d. being heard

13.____ no alternative, we accepted these conditions.

   a. Doing   b. Having   c. After   d. Had

14.Matter is the name ____ to everything which has weight and occupies space.

   a. giving  b. gave   c. given  d. gives

15.The train was seen ____ at a very high speed toward the industrial center.

a.       travel  b. travels  c. traveled  d. traveling

16.When ____ through the book, I came across an interesting picture.

   a. look  b looking   c. looked   d. being looked

17.Power stations employ ____ water to produce electricity.

   a. falling  b. fallen   c. filling   d. filled

18.The news was ____ to us all.

   a. surprised  b. to be surprised  c. surprising   d. to surprised

19.His suggestion started me ____ seriously.

a.       thinking  b. having thought  c. think  d. thought

20.With radar, the soldiers ____ a town can see enemy aeroplanes hundreds of miles away.

a.       guarded  b. guard  c. guarding  d. to guard

21.We’ll soon have a person ____ with us.

   a. to work  b. working  c. worked    d. works

22.A wind is a current of air ____ near the surface of the earth.

a.       moves  b. moving  c. moved  d. to move

23.The charm of life was ____ for Tom Sawyer.

a.       going  b. go  c. went  d. gone

24.____ the largest source of energy in the solar system, the sun sends out vast amounts of energy.

   a. Because  b. Be   c. Being   d. Having

25.Can you get the clock ____ again?

   a. gone   b. going   c. go   d. to go

26.____ by his spirit, we waged another struggle.

   a. Inspired  b. Inspiring   c. Inspire   d. Having inspired

27.The teacher came into the classroom, ____ by a group of pupils.

   a. to follow   b. following  c. be followed   d. followed

28.I saw that old man ____ down by a truck.

   a. knocking  b. knock  c. knocked    d. to knocking

29.____ from the hill, the town looks magnificent.

   a. Seen   b. Seeing   c. To see   d. Be seen

30.Anyone who has seen a great locomotive ____ a long train realizes that heat can do work.

   a. pulled   b. being pulled   c. pulling   d. pulls

31.He soon made his presence ____ and his wishes ____.

   a. feel...know   b. feeling...knowing  c. felt...known   d. felt...knowing

32.____ the position as a whole, they are better off now than before.

   a. Considering  b. Considered   c. To consider   d. For considering

33.I have to have my radio ____ so that I can listen to the radio English course.

a.       repair  b. repairing  c. repaired  d. to repair

34.What did the teacher want ____ to the noisy children?

a.       done  b. to do  c. doing  d. did

35.I asked for help, ____, however, whether anyone would volunteer.

   a. doubted  b. being doubting  c. doubting   d. was doubting

36.Once ____, the machines may be put into service.

a.       testing  b. to test  c. tests  d. tested

37.____, we listened very attentively to the professor.

   a. Deeply moved   b. Moved deeply by   b. By deeply moved  d. Deeply moved

38.This program will examine the writer’s books in detail, ____ an introduction to her life.

a.       following  b. having followed  c. being followed  d. to be followed

39.____ a Party member, he is ready to do anything for the Party.

   a. Being  b. To be   c. For being   d. Be

40.The party was taken out to see a film ____ on location in the desert.

   a. being shot  b. being now shot   c. while being shot   d. that being shot

 

答案：   I.   1.B   2.A   3.D   4.C   5.D   6.A   7.B   8.C   9.D  10.C

11.A  12.C  13.B  14.C  15.D  16.B  17.A  18.C  19.A  20.C

21.B  22.B  23.D  24.C  25.B  26.A  27.D  28.C  29.A  30.C

31.C  32.A  33.C  34.A  35.C  36.D  37.D  38.A  39.A  40.A