14. so/ such……..that…….引导结果状语从句，须注意当名词前有many, much, little, few修饰时, 用so不用such。
The westerners eat so much fat and sugar that they put on weight easily.
There are so few fish in the lake that we couldn’t fish them easily.
当主从句主语一致时可与动词不定式相互转换,即变成so/such…….as to do结构。
The westerners eat so much fat and sugar as to put on weight easily.
15. so that 引导目的状语从句与结果状语从句
so that引导目的状语从句时常与情态动词连用（= in order that）。
He turned up the radio a little so that he could hear the news clearly.
He turned up the radio a little so as to hear the news clearly.
16.can never/can’t 与too, too much, enough, over- 搭配表示“无论怎样…都不过分”
While you are doing your homework, you can’t be careful enough.
He is such a great man that we can’t praise him too much.
William Hartley was handsome, determined and hardworking. In a word, I couldn’t speak too highly of him.
The development of society has made it necessary for us to have a good knowledge of English, so we can’t overemphasize the importance of learning English.
Since it is a good thing, we can’t do it too soon.
17. 不定式作主语，it作形式主语。
It +系动词+adj./n.+ for sb. to do (sb.表示动词不定式动作的执行者)
It +系动词+adj.+ of sb. to do （sb.既表示动词不定式动作的执行者，又表示人所具备的性质或特征）
It’s important for us to have a good knowledge of English.
How rude of him to treat a child like that!
It’s thoughtful of him to fix us up for the night.
18. 不定式作宾语，it作形式宾语。
主语+think/consider/believe/ make/ feel+ it +adj./n. +for sb./ of sb. +to do sth.
I feel it foolish of him to believe such a man.
The timely rain had made it possible for the crops to grow well.
19. won’t/ can’t have sb. doing/done 不能容忍某行为发生
You are too rude, and I won’t have you speaking to Mother like that again.
We can’t have anything done against the school rules.
20. It is said/thought/ hoped/ believed...that...=sb. is said/thought/hoped/believed to do…..
It is said that he is studying abroad.--> He is said to be studying abroad.
It is considered that many countries highly value China’s role in helping world’s peace.=Many countries is considered to highly value China’s role in helping world’s peace.
21. had hoped to do=hoped to have done表示过去原打算干却未曾实现的愿望、打算或意图。类似的动词还有：expect, think, intend, design, plan, mean, suppose等。
I had hoped to travel to London this summer，but I was too busy.
22. How did sb come to do...? = How come that….为什么会…../……是怎么回事？表示要求对所发生的事情说明理由或做出解释。
How did you come to find out where she’s living?= How come that you found out….
你是怎么打听到她住在哪儿的`?
How come that you sat there ,doing nothing?为什么坐在那儿什么也不干?
23. It is (not ) like sb. to do… ...（不）像某人的所作所为
It’s like him to answer for what he has done.敢对自己的行为负责，这是他的一贯作风。
It’s not like him to have been so rude to his mother.
24. when it comes to… 当谈到或涉及到…
He is a man of few words, but when it comes to playing computer, he will be excited and full of energy.
When it comes to helping his wife with the housework, John never complains.
25. every time/ each time/ next time/ the first time/ any time等短语引导时间状语从句，表示“...次的时候”。
Every time you meet with new words while reading, don’t always refer to your dictionary.
Next time you come , do remember to bring your son here.
You are welcome to come back any time you want to.
26. There is (no) need to do…/for...=It is ( not ) necessary for sb. to do…
There is ( no ) hope/chance/possibility of doing…
There is( no )difficulty/trouble/point/delay( in )doing...
Is there any chance of us/our winning the match?
There is no point（意义）in discussing the problem again.
27. It is up to sb. to do sth. 应由某人来做某事……..
——When shall we start out?
——It’s up to you to decide.
It’s up to you to babysit my so while I am away on business.
28.be up to sth. 忙于…..., 从事…..., 胜任.…..
John isn’t really up to that job. 约翰不适合干那项工作。
What have you been up to recently? 最近你一直在忙些什么？
29. It is time to do/It is time that +主语+动词的一般过去式 该是做…..的时候了
It is time that we ended the discussion.
30. 强调句基本构成形式：It is/ was +被强调部分+ who/that+原句剩余部分
I met him in the street yesterday afternoon.
It was I who/ that met him in the street yesterday afternoon.(强调是我，不是别人)
It was him who/that I met in the street yesterday afternoon.( 强调我遇见的是他，不是别人)
It was in the street that I met him yesterday afternoon.( 强调是在大街上，不是在别的地方，强调的是地点，但不用where)
It was yesterday afternoon that I met him in the street (强调是昨天下午，不是在别的时候, 强调的是时间，但不用when)
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