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例：The bell is ringing now. 一般
There goes the bell.特殊
例： People suggest that the conference be put off.一般
It is suggested that the conference be put off.特殊
例： He is so kind that he can help me.一般
He is so kind as to help me. 特殊
例： 1 She walked out of the lab and many students followed her.一般
Followed by many students, she walked out of the lab.特殊
2 Once it is seen, it can never be forgotten.一般
Once seen, it can never be forgotten. 特殊
五、使用 v- ing
1 When he arrives，please give me an e-mail.一般
On arriving /his arrival ,please give me an e-mail.特殊
2 If the weather permits ,I will come tomorrow.一般
I will come tomorrow, weather permitting. .特殊
1.It disappointed everybody that
he didn't turn up.一般
The fact that he did n' t turn up
2.I happened to have met him.一般
It happened that I had met him. 特殊
3.To his surprise, the little girl knows so many things.一般
What surprises him is that the little girl knows so many things. 特殊
例; The girl is spoken highly of. Her composition was well written.一般
The girl whose composition was well written is spoken highly of. 特殊
1.I won't believe what he says.一般
No matter what he says, I won't believe.特殊
2.If you come back before six o'clock, you can go out.一般
You can go out on condition that you come back before six o'clock. 特殊
3 If she doesn't agree, what shall we do? 一般
Supposing that she doesn't agree, what shell we do ?特殊
例： The ship didn't sink with all on board because there were the efforts of the captain.一般
But for the efforts of the captain ,the ship would have sunk with all on board.特殊
例：Though I'm weak I'll make the effort.一般
Weak as I am, I'll make the effort.特殊
1.看法(OPINION)：anticipate， be supposed to， believe， calculate， expect， figure(infml，AmE), imagine, reckon (infml，esp, in AmE)， suppose， think.
Eg. I don"t believe I"ve met you b! efore. ("I believe I haven"t met you before.")
Eg. She didn"t imagine that we would say anything. ("She imagined we wouldn"t say anything.")
Eg. He didn"t expect to win.("He expected not to win.")
2.感觉(PERCEPTION) appear， seem， feel as if， look as if， sound as if (后三个动词也作infml，esp， in AmE，其中用like来代替as if)：
Eg. It doesn"t seem that we can get our money back.
"It seems that we can"t get our money back."
Eg. The baby doesn"t appear to be awake.
("The baby appears not to! be awake.")
Eg. It doesn"t look like it"s going to rain.
("It looks like it isn"t going to rain.")
I wish you were here， then I think I should not feel like this.
2.母句中添加情态动词can"t mustn"t wouldn"t时：
I can"t believe that they are married.
You mustn"t think he"s stupid.
I wouldn"t have imagined that Sandra would be here.
3.由于cannot helping2， ought not， need not， not at all等短语的关系而把I think! 隔离。
I should have thought sometimes you couldn"t help thinking of the past.
I think you ought not to walk at night alone， Mrs. Moore.
I think you need not be impolite to her， as well as to her son.
"I think the angel are not at all in heaven." Mr.Esmond said."
4. 由于not just... but， just not... enough，not much, not quite等以not为核心的副词短语的影响，也不便把否定拿到动词的前面去：
I think I"m just not smart enough to make any sense out of for you.
"You think she"s not much like you? Brerald asked.
But I think that Elizabeth was not quite so certain of it as I.
句中含有no, never, nothing, nobody等的不定词时：
I should think you never have seen many.
I thought it explained nothing.