1. You ____ read that article if you don’t want to.
A. haven’t B. can’t C. mustn’t D. needn’t
【答案】D 句意为“如果你不想读那本书,就不一定要读。”本句考察must的否定形式; needn't的含义是“不必”; mustn'只有一个意思“千万不要”;所以应为needn't而不是 mustn't。
2. I___ get this done immediately or it will be too late.
A. must B. can C. may D. might
【答案】A 句意:我今天一定要把这件事做完,否则就来不及了。说明时间紧迫,是“一定” 要做,因此选must
3. She ____ be ill because I saw her playing tennis just now.
A. can’t B. couldn’t C. mustn’t D. may not
【答案】A. 本题考查的是情态动词表推测的用法。对现在的推测用情态动词+动词原型,例如:20题用cannot 表示‘肯定没….’,而must表‘肯定…’。本句意思是:她不可能生病,因为刚才我看到她打网球。此处语气肯定,所以排除选项D may not(可能不)。C选项mustn’t’t表示禁止做…,如you mustn’t drive while you are drunk.你绝不可以酒后驾车。
4. I asleep in the corner, for I remember nothing of what happened during the night.
A. might fall B. must fall C. must have fallen D. can have fallen
【答案】C 表示对过去事实肯定的推测,用must have done sth.;can have done sth,表示“本能做,但没有做”。全句意为“我肯定在角落里睡着了,因为我不记得任何在夜里发生的事情。
5. Sorry, officer. I ____ at 80 miles but I didn’t see any sign in the area telling people how fast they can drive.
A. should not drive B. shouldn’t have driven
C. mustn’t drive D. can’t drive
【答案】B. 本题考查的是情态动词表示虚拟语气的用法。shouldn’t have sth. done是典型的与事实相反的虚拟语气用法,意为我本不该做某事,却那样做了。结合题意,我本不该开到每小时八十英里的时速,但是没有标示牌表示速限。