Question

求高手帮我分析两道英语选择题！

1.He walked through the back door,saying nothing,( ) by his headteacher.
A. not seeing B.to not be seen C.not to be seen D.not be seen.
特别是第二题，难道可以把原因状语放在句后吗？
2.I got to my office earlier than usual today although it was raining cats and dogs,( ) the first bus.
A.to catch B.to have caught C.caught D.having caught

Answer 1

1. He walkedthrough the back door, saying nothing, (  ) by his head teacher.

   
   

　　【选择】C. not to be seen

　　【解析】可以从句子结构入手

• 主要成分：He walked through the back door, 他从后门溜进来

• 伴随状语：saying nothing, 悄无声息地

• 目的状语：(not to be seen) by his head teacher （【= (so as) not to be seen 或(so that he could) not to be seen）以便不被校长看见

   2. I got to myoffice earlier than usual today although it was raining cats and dogs, (   )  thefirst bus.

　　【选择】D. having caught

　　【解析】

　　填空处事原因状语。状语的位置不像主谓宾或主系表那样固定，既可以出现在主要结构前面，也可以放在后面；前者表示强调，后者属于顺便提及。

　　“赶头班车”早于“到达办公室”。由于got to my office 用的是过去时，所以“赶车”就需要用完成时。having caught the first bus 可以视作是状语从句because I had caught the first bus 省略主语 I 再把谓语动词 had caught 改为现在分词 having caught 衍变而来的。

Answer 2

1. C   目的状语   to do    的否定形式   not to do   后面接上被动  be seen （被发现）

   为了不被校长发现，我们从后门悄悄地溜走了。

2. D     因为坐上了头班车，我们在这样的大雨天里反而比往常更早的来到了单位。

   状语原则上面可以在句子的任何位子，当然要参照一下那个位子读上去比较好一天。但没有硬性语法规定。