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［误］ She didn't come to school because of she was ill.
［正］ She didn't come to school because she was ill.
［析］ because of 后接名词，如：The game was put off because of the rain.
(三) 例题解析
1 - Thank you ＿＿＿ the beautiful flowers!
- Not at all.
A in B on C at D for
［答案］ D.
［析］ 由于某事向某人道谢应用for。
2 Can you answer this question ＿＿＿ English?
A by B in C with D from
［答案］ B.
［析］ in 表示用语言、声音、或材料，如：He answered the question in a low voice.
3 Look ＿＿＿ the map ＿＿＿ China ＿＿＿ the wall, please.
A after, of, in B at, of, in
C after, in, on D at, of, on
［答案］ D.
［析］ look at 为“看”，而on the wall为“在墙表面挂着”，而in the wall 则是“在墙内”，如：There is hole in the wall.墙上有个洞。
4 - When did Mr Green arrive in London?
- He arrived there ＿＿＿ the evening of December 6th.
A at B in C on D to
［答案］ C.
［析］ in the evening / afternoon这两个词组不论是在其前或后加上任何修饰词都应将介词换为on,如：on a cold morning, on a spring morning等。
5 We won the relay race. And there was a big smile ＿＿＿ our teacher's face.
A off B near C on D between
［答案］ C.
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