是考查祈使句还是现在分词

有这样一道题：

_________ the road round to the right and you’ll find his house.

A. Follow                 B. Following             C. To follow             D. Followed

【分析】此题正确答案选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：(from www.nmet168.com)

_________ 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 keepD. Kept

(10) _________ your hand over your mouth when you cough.

A. Put                      B. Putting                 C. To put                  D. To be putting

(11)_________ until the lights have turned to green.

A. Wait                     B. To wait                C. Waiting                D. Having waited

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