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英语语法187.The professor paused as if ___________ his students

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英语语法
187.The professor paused as if ___________ his students to ask questions on the point he had just made.
A.expecting B.is expecting C.expected D.to have expected
188.---The weather report said that there is rain today.
_____ to go abroad,his spare time is totally spent in learning English.
A.Having intended B.Intending C.To intend D.Because he intends给下解释哈
187.A
分词作状语,表示伴随.
相当于as if 引导的状语从句:
The professor paused as if he was expecting his students to ask questions on the point he had just made.
例如:John stood at the school gate as if waiting for someone.
as if 还可以引导动词不定式:
John bent down as if to pick up something on the ground.
相当于:John bent down as if he wanted to pick up something on the ground.
188.选 D.
原因状语从句.
如果选择非谓语动词,句子主语与非谓语逻辑主语必须保持一致.
如:
Intended to go abroad,he spends his spare time totally in learning English.
=As he has been intended to go abroad,he...(相同主语)
或者:
Having made up his mind to go abroad,he spends his spare time totally in learning English.
= As he has made up his mind to go abroad,he...(相同主语)
本题主语是his spare time,所以只能用完整的原因状语从句了.
再给一道类似例子:
Having done such a good job,Mary walked out to have a rest.(正确)
Having done such a good job,the teacher praised Mary.(错)
第二句改为:As she had done such a good job,the teacher praised Mary.