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有关语法方面的问题,1.It’s a pity that Professor Smith has failed to m

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有关语法方面的问题,
1.It’s a pity that Professor Smith has failed to make his idea (understood).答案为understood,但为什么(to be understood)不对呢?
2.The medicine is on sale everywhere.You can get it at (any )chemist’s.为什么用any而不能用some或each呢?
3.Mary did not have time to go to the concert yesterday because she was busy (preparing )for her examination.为什么应该选这个答案呢?
a) to prepare b) preparing
c) to be prepared d) being prepared
1.make sb./sth.do
sb/ sth 与do之间是主动关系,可构成主谓结构
eg.The teacher made him study hard.(he studies not the teacher)
make sb./sth.done
sb./sth.与do之间是被动关系,也可构成主谓结构
eg.The teacher made himself understood (by his students).老师使他自己被他学生所理解(he was understood )
2.any任何一个之意,该意可用于肯定句
3.be busy doing 固定词组,且表当时正在做,即使无busy,此处仍需用过去进行时