高考英語中，與it 有關的句型特別多，經常容易搞混淆。
先收藏再慢慢學習。
1) It was +一段時間+ before +主語+did: “過了…（時間）才”
2）It will be +一段時間+ before +主語+do : “要過…(時間)才” （主將從現）
3）It is (或has been) +一段時間+ since +主語+did: “自從…已有…(時間)了”
對比：It was +一段時間+ since +主語+ had done
4) It was + 時間點 + when + 從句：
5) It is / was + 被強調部分 + that （who指人）+ 其餘部分：強調句型
6）It is / was + 表語 + that + 主語從句
7) It / This/ That is the first / second / last time ( that) + 主語 + have done (現完)
對比：(1) It / This was the first / second time ( that) + 主語 + had done (過完)
(2) It /This is the adj.最高級 ( + 名詞) + （that）+ 主語 + have done
1. it 固定句型
(1) as sb puts it 像某人所說的那樣 (2) feel like it 願意……
(3) when it comes to 說起……
(4) take it for granted that...想當然，理所當然地認為
(5) It occurred to sb. that... = It struck sb. that... = It dawned on sb. that... 某人突然
想起
(6) It goes without saying that... 理應如此/不言而喻.
(7) It's not /just like sb. to do sth.……的行為不/正像某人的一貫作風.
(8) (Just) as sb puts it：按照某人的說法 (9) It pays to do sth.：做某事是有價值
的（有用的）
(10) It is no use doing sth. 做某事是沒有用的
2. It is (表褒貶義)adj. + of sb. to do sth.
對比：It is (表中性)adj. + for sb. to do sth.
3. How did it come about that +從句？= How come…? 怎麼會...?
4. It is（high）time＋（that）＋主語＋V-ed ( 或should + V)
5. It is + V-ed + that +主語 + do (have done) = 主語 + be + V-ed + to do
對比：1) It is + V-ed + that +主語 + did = 主語 + be + V-ed + to have done
常見動詞：say, believe, think, expect, hope, decide, arrange, suggest, require,
order, know
2) 主語+ seem / appear ( to be ) +表語 = It seems / appears that + 主語 +
be + 表語典例：
(1) It was some time before I realized the truth. 過了很長一段時間我才瞭解到真相。
(2) It will be many years before the situation improves.
這種狀況要過很多年才能得到改善。
(3) It is the first time that I have visited the city.
對比：a. It was the third time that the boy had been late.
b.This is the best film that I've (ever) seen. 這是我看過的最好的電影。
(4) You needn’t go if you don’t feel like it. 你不願意去，就別去了。
(5) As someone puts it, practice makes perfet. 像某人所說的那樣，熟能生巧。
(6) When it comes to English, he's an expert. 在英語方面,他是個專家.
(7) It was 11 p.m. when he came back last night. 昨晚他回來時已是晚上十一點鐘了。
(8) It was at 11 p.m. that he came back last night. 他昨晚上是十一點回來的。（強調句）
(9) It has often been said that life is difficult as it is.
人們經常會說生活本身是很艱難的。
(10) It is high time he should come to our house for dinner.
已經到了他該上咱家吃晚飯的時候了。
(11) Don't take it for granted that your parents should support you all your life.
別以為你父母養你一輩子是天經地義的事。
(12) lt's not like Jim to be late for class. He regards time as the most important thing in life.
上課遲到不像吉姆的一貫作風,他把時間看作是生命中最重要的.
(13) It was careless of Tom to break the cup.
(14) He seems to be very sad. = It seems that he is very sad.
仿練：（1）I’m sorry you’ve been waiting so long, but it’ll still be some time
____ Brian gets back.
A. before B. since C. till D. after
(2) This is the first time we_____ a film in the cinema together as a family.
A．see B．had seen C．saw D．have seen
(3) It is the most instructive lecture that I ___since I came to this school.
A attended B had attended C am attending D have attended
(4) It’s no use ______ without taking action.
A. complain B. complainingC. being complainedD. to be complained
(5) Because of the heavy traffic，it was already time for lunch break____she
got to her
office．
A．since B．that C．when D．until
(6) John thinks it won’t be long_____he is ready for his new job.
A. when B. after C. before D. since
(7) It never occurred to me__you could succeed in persuading him to change his mind.
A.which B.what C.that D. if
對比：(1)---Did Jack come back early last night?
---Yes. It was not yet eight o’clock ______ he arrived home.
A.before B.when C.that D.until
(2) It took me a long time before I was able to fully appreciate what they __ for me.
A. had done B. did C. would do D. were doing
(3) It was April 29, 2001 ______ Prince William and Kate Middleton walked
into the palace hall of the wedding ceremony.
A.that B.when C.since D.before
(4) As it reported, it is 100 years ___________Qinghua University was founded.
A. when B. before C. after D. since
改錯：It is time we go home.
填空：用when, before, since或until填空
(1) Few people will pay full attention to their health ___ they get certain incurable disease.
(2) Let me take down what you have said ______ I forget.
(3) It may take ten years or more ______ the scientists can find a cure for AIDS.
(4) It is several weeks ______ my father got drunk last time.
(5) We were chatting happily on the Internet ______ the light went out.
(6) Three years had passed ______ I knew it.
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