had better, should, ought to学习四要素（二）
［巩固练习］
I. 从 A 、 B 、 C 、 D 中选出可以填入空白处的最佳答案。
1. This dictionary belongs to Rita. You ____________ it home without letting her know.
A. had better not to take
B. shouldnt have taken
C. oughtnt take
D. shouldnt be taking
2. Our money is very limited， so you ___________ so much money on so dear a skirt.
A. shouldnt have spent
B. shouldnt be spending
C. neednt have spent
D. oughtnt spend
3. You __________ to your father like this， after all he is your father.
A. neednt have spoken
B. mustnt have spoken
C. oughtnt to have spoken
D. ought to not have spoken
4. I really cant understand such a beautiful girl like her _________ be so rude.
A. must B. would
C. should D. might
5. Look，the books on the desk are all wet. You __________ all the windows to keep the rain out.
A. must have shut
B. should have shut
C. ought have shut
D. can have shut
6. The little girl had better not stay up too late， ___________ she？
A. does B. will C. had D. has
7. This is a very important project，so you _______ plan it very carefully.
A. ought to B. will
C. dare D. need
8. You had better ________ football near the street，its very dangerous.
A. not to play B. dont play
C. not play D. to not play
II. 在下列各句的空白处填上适当的情态动词，每空一词。
1. Excuse me， may I sit here？
Im afraid you ________ ________ not， because someone has taken it.
2. Tom，you __________ have left home without telling your parents yesterday afternoon.
3. You _________ __________ have bought that book. It is so good.
4. I think you should be careful in all your work， ____________ you？
5. Your sister ought to put her heart and soul into her study， _____________ she？
答案：
I. 1. B 2. A 3. C 4. C
5. B 6. C 7. A 8. C
II. 1. had better 2. shouldnt
3. ought to 4. shouldnt
5. oughtnt
江苏海安徐美莹
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