是考查祈使句还是非谓语动词
请看下面这道题，是考查祈使句还是考查非谓语动词？
_______ the road round to the right and you’ll find his house.
A. Follow B. Following
C. To follow D. Followed
【分析】正确答案选A。根据句中的连词and 可推知它是一个并列句。假若将此题改为下面这样，则答案为B：
_______ the road round to the right, you’ll find his house.
A. Follow B. Following
C. To follow D. Followed
但是，若改成下面一题这样，则答案为C(不定式短语表目的)：
_______ the road round to the right, the blind man asked a boy to guide him.
A. Follow B. Following
C. To follow D. Followed
请做以下试题，答案均选A，都是因为句中的并列连词 and（填空句为祈使句）：
(1) _______ to the top of the hill, and you can see the whole of the town.
A. Get B. To get
C. Getting D. Having got
(2) ______ the milk and set a good example to the other children.
A. Drink B. To drink
C. Drinking D. Having drinking
(3) ______ me, and then try to copy what I do.
A. Watch B. Watching
C. To watch D. Have watching
(4) _____ through this book and tell me what you think of it.
A. Look B. Looking
C. To look D. Having looked
(5) _____ it with me and I’ll see what I can do.
A. Leave B. Leaving
C. If you leave D. When left
有时不用连词连接句子，而用破折号，情况也是一样(答案均选A)。如：
(6) _____ down the radio — the baby’s asleep in the next room.
A. Turn B. Turning
C. to turn D. To have turned
(7) _____ some of this juice — perhaps you will like it.
A. Try B. Trying
C. To try D. To have tried
以下各题也应选A，是因为句中的从属连词 when, before, until 等（填空句为祈使句）：
(8) ______ him enough time to get home before you telephone.
A. Give B. To give
C. Giving D. Given
(9) ______ left when you get to the end of the street.
A. Keep B. Keeping
C. To keep D. Kept
(10) ______ your hand over your mouth when you cough.
A. Put B. Putting
C. To put D. To be putting