情态动词表推测专项练习题.doc

 1. Look! The light is out in her room. She to bed already. A. must go B. had to go C.must have gone D.has gone 2. We had a wonderful time yesterday. You .Why didn't you come? A. had to come B.should have come C.might have come D.must have come 3. There were already five people in the car but they managed to take me as well. It_ a comfortable journey.A. can't be B. shouldn't be C. mustn't have been D. couldn't have been4. My sister met him at the Grand Theatre yesterday afternoon, so he _ your lecture.A. couldn't have attended B. needn't have attendedC. mustn't have attended D. shouldn't have attended5. I was really anxious about you. You _ home without a word.A. mustn't leave B. Shouldn't have left C. Couldn't have left D. needn't leave6. Oh, Im not feeling well in the stomach,I_ so much fried chicken just now.A. shouldnt cut B. mustnt have eaten C. shouldnt have eaten D. mustnt eat7. Mr.White _ at 8:30 for the meeting, but he didnt show up.A. should have arrived B. should arrive C. should have had arrived D. should be arriving8. You _ be tired - you've only been working for an hour.A. must not B. won' t C. can' t D. may not9. - Isn' t that Ann's husband over there?- No, it _ be him -I'm sure he doesn't wear glasses.A. can't B. must not C. won't D. may not10. There _ be any difficulty about passing the road test since you have practised a lot in the driving school.A . mustnt B. shant C. shouldnt D.neednt11. I was on the highway when this car went past followed by a police car. They _ at lease 150 km an hour.A. should have been doing B. must have been doingC. could have done D. would have done12. He _ have completed his work; otherwise, he wouldnt be enjoying himself by the seaside.A. should B. must C. wouldnt D. cant13. - The woman biologist stayed in Africa studying wild animals for 13 years before she returned.- Oh, dear! She _ a lot of difficulties!A. may go through B. might go throughC. ought to have gone through D. must have gone through14. This cake is very sweet. You _ a lot of sugar in it.Ashould put Bcould have put Cmight put Dmust have put15. Catherine, I have cleaned the room for you.Thanks. You it. I could manage it myself.Aneednt do Bneednt have done Cmustnt do Dshouldnt have done16.Tom is never late for work. Why is he absent today?Something _ to him.Amust happen Bshould have happened Ccould have happened Dmust have happenedThe Uniqueness of Finger-prints （指纹的唯一性）难度： 词数：266 标准时间：6分钟 完成时间：_正确数：_Every human being has a unique arrangement of the skin on his fingers and this arrangement is unchangeable. Scientists and experts have proved the uniqueness of finger-prints and discovered that no exactly similar pattern is passed on from parents to children, though nobody knows why this is the case.The ridge structure on a persons fingers does not change with growth and is not affected by surface injuries. Burns, cuts and other damage to the outer part of the skin will be replaced in time by new one, which bears a reproduction of the original pattern. It is only when the inner skin is injured that the arrangement will be destroyed. Some criminals make use of this fact to remove their own finger-prints but this is a dangerous and rare step to take.Finger-prints can be made very easily with printers ink. They can by recorded easily. With special methods, identification can be achieved successfully within a short time. Because of the simplicity and economy of this system, finger-prints have often been used as a method of solving criminal case. A suspected man may deny a charge but this may be in vain. His finger-prints can prove who he is even if his appearance has been changed by age or accident.When a suspect leaves finger-prints behind at the scene of a crime, they are difficult to detect with the naked eye. Special techniques are used to “develop” them. Some of the marks found are incomplete but identification is possible if a print of a quarter of an inch square can be obtained.待添加的隐藏文字内容3 ( ) 1. Scientists and experts have proved that the pattern of a human beings finger skin _.A. is similar to his mothers B. is valuable to himself onlyC. is like that of others with the same type of bloodD. is different from that of all others( ) 2. If your fingers are wounded by knife, fire or other means, the structure of skin will _.A. be changed partly B. be replaced by a different oneC. be the same when the wound is recovered D. become ugly( ) 3. Some criminals remove their own finger-prints by _.A. using printers ink B. injuring the inner skinC. damaging the outer skin D. damaging the colour( ) 4. Finger-prints have often been used as a method of solving criminal case because it _.A. is complicated but reliable B. is simple and not expensiveC. is expensive but easy to do D. can bring a lot of money