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请从语法角度加以说明~(3)

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请从语法角度加以说明~(3)
38.did you have anyone________ the trees?
Yes,I had the trees_______.
A.to water…water B.to water…watered
C.water…to be watered D.water…watered
42.the little boy was so frightened that he didn’t know________ next.
A.how to do B.what should he do C.what he will do D.what to do
43.please talk about the countries________ you have read about.
A.who B.where C.which D.when
38.did you have anyone________ the trees?
Yes,I had the trees_______.
A.to water…water B.to water…watered
C.water…to be watered D.water…watered
做这种题,首先看,句子中的动作是否由have后面的部分发出,第一句中,water这个动作可以由anyone 发出,所以可以不用被动格式.句型have someone do sth.让某人做某事.这里的动词要是动词原形.所以在C和D项中选择.再看第二句话,动作water不能由trees发出,所以应该选择被动格式,have someone done sth.再看这个动作已经发生了,所以不定式的被动型态就不合适了,因为它是表示将来发生的动作.
此题选D
42.the little boy was so frightened that he didn’t know________ next.
A.how to do B.what should he do C.what he will do D.what to do
句子意思是这个小男孩惊吓得不知道接下来该做什么了.
空格部分是个从句,由于其主句将时态限制在过去的时态了,C项排除.根据句子意思D项最合适.
43.please talk about the countries________ you have read about.
A.who B.where C.which D.when
此句是宾语从句.从句缺宾语,主句中不缺成分,选项中能够当从句宾语的就只有C项啦