高三 高中It用法总结归纳

1、苏州个性化教育中心 xueda personalized education development center个 性 化 教 案学科：高中英语课时计划： 2 课时年级： 高三课题： 高中英语it用法总结归纳学生姓名：教师姓名：陈 莉教学目标总结归纳并掌握高中英语it用法教学重点总结归纳并掌握运用高中英语it用法教学难点掌握运用高中英语it用法授课类型归纳总结课教学过程教师活动it用法总结归纳一、人称代词1，it的最基本用法是作代词，主要指刚提到的事物，以避免重复: they watched the train until it disappeared in the distance.2.，

2、也可以指动物或婴儿(未知性别的婴儿或孩子): is this your dog？no, it isnt.they got a baby and it was a ten-pounder3.，也可指抽象事物或指抽象环境和情景:i hate it when people talk with a full mouth.二、.非人称代词 1.it有时并不指具体的东西而泛指天气、时间、日期、距离、价值、度量、温度、环境等： .指天气：it is a lovely day, isnt  it? .指时间: it was nearly midnight when she came back.指日期

3、:it is april first today.指距离:it is some 3000 kilometers from beijing to guangzhou.指价值:it is three dollars.指温度:today it is 30 degrees centigrade. 3、 其他用法1.在句子的主语不太明确时充当主语，表示谁在做某事： who is it there? it's i (me/you/he.). i thought it was mary, but it was not she. her face lighted when she saw w

4、ho it was. 2.泛泛的指某件事： (有时泛指一般情况) it doesnt matter. it is a shame, isnt  it? how is it going?(情况怎样) it says in the newspaper that.3.it用在一些词组中，it 没有特别的意思 the last train's gone. come on, we'll foot it.(来，咱们步行吧。)四、作形式主语，替代主语从句，动词不定式，或动名词短语：1.作形式主语替代主语从句 it is clear ( obvious， true， possible

5、， certain.) that 从句 常译为清楚的（显然的，真的，可能的,肯定的） it is very clear that hes round and tall like a tree. = that  hes round and tall like a tree is very clear. it is important ( necessary， right， strange， natural.) that 从句 常译为是重要的(必要的,对的,奇怪的,自然的).that 后的从句中要用虚拟语气（should + 动词原形），should 可以省去，建议记住该句型中的形容词。

6、  it is important that we (should) learn english well.   it is necessary that he (should) remember these words. it is said (reported/ learned/believed/thought/known/told/hoped.) that 从句 常译为据说（据报道，据悉）。   it is said that he has come to beijing.   it is reported that another earth s

7、atellite has been put into orbit. it is suggested ( advised/ ordered / demanded/ insisted/ commanded. ) that 从句.that后的从句要用虚拟语气（should + 动词原形），should 可以省；常译为据建议；有命令） it is suggested that the meeting ( should ) be put off. it was ordered that we ( should ) arrive there in two hours. it is time ( about

8、 time ，high time ) that从句(虚拟语气:动词用过去时did) it is time that children went to bed. it is time you bought a new car. it is (high ) time you made up your mind.it is the first ( second . ) time that从句(从句用现在完成时 have done ) it was the first ( second . ) time that从句(从句用过去完成时had done ) 常译为是第一（二）次。 it is the f

9、irst time i have been here. = this is the first time i have been hereit is a pity ( a shame /an honour/a good thing/a fact,/a surprise/. ) that从句. that后的从句一般用虚拟语气（should + 动词原形），should可省去表示出乎意料，常译为竟然。没有这种意义时，则不用虚拟语气。 it is a pity that such a thing ( should ) happen in your class. 这种事竟然发生在你们班 上，真是遗憾！

10、 it is a pity that he is ill. 他生病了，真遗憾！ it happens (seems， looks， appears ) that从句.常译为 “ 碰巧,似乎是,看起来” it happened ( so happened ) that he met his teacher in the street. 碰巧. it seems that he will be back in a few days. 看来 2.作形式主语替代不定式. it is kind ( of sb. ) to do sth. 不定式的逻辑主语是由 of引起，主句中的形容词必须是能表示逻辑主语

11、特征的褒义或贬义形容词。 常见的词有： bad ， brave ， careless， clever ， cruel ， foolish ， good （好心的）， honest ， horrible ， kind ， lazy ， modest ， naughty ， nice（有教养的）， polite， rude ， silly ， stupid ， wise ， wrong（错误的）等。 这个句型可以改写为：sb. is kind to do sth. 。 如:it is kind of you to say so. = you are kind to say so. it is ne

12、cessary ( for sb. ) to do sth. .不定式的逻辑主语是由for引起，主句中的形容词通常是表示重要性，紧迫性，频繁程度，难易，安全等情况的中性形容词。 常见的形容词有： important， necessary， natural easy ， safe ， common ， normal ， hard ， difficult ， dangerous ， unusual， rare ， impossible ， pleasant 如:it is important for her to come to the party. = it is important that

13、she (should ) come to the party. it takes sb. . to do sth. 常译为做要花费某人。 如:it took thousands of people many years to build the great wall. 3.作形式主语替代动名词短语it is no good / no use / useless doing sth. 常译为 “有好处或没有用” it is no good learning english without speaking english. it's useless trying to argue wi

14、th shylock.五、作形式宾语，代替不定式，动名词短语或宾语从句。 we think it important to learn a foreign language. 该句型中的it 作形式宾语，该结构中常用的动词有：think, believe, make ,find consider, feel； 如:we think it our duty to clean our classroom every day. he felt it important learning english well. they found it difficult that they woul

15、d finish their work in two days.the internet makes it easier for companies to keep in touch with customers.六、.it的重要句型 1.强调句型: it is/was  + 被强调部分 + that 从句 (被强调的主语如果是人，that可以由who换用) it was about 600 years ago that the first clock with a face and an hour hand was made. it was they that (who ) cle

16、aned the classroom yesterday.it was in the street that i met her father. it was yesterday that i met her in the street.it is you that /who are wrong.特例:it is not until + 被强调部分 + that . 该句型也是强调句型。主要用于强凋时间状语，译成汉语直到才，可以说是 not . until . 的强调形式。 it was not until she took off her dark glasses that i realiz

17、ed she was a famous film star.= not until she took off her dark glasses did i realize she was a famous film star.= i didnt realize she was a famous film star until she took off her dark glasses.课堂练习1. i like_in the autumn when the weather is clear and bright.a. this     b. that&#

18、160;    c. it     d. one解析 c.句中like为及物动词，后面需要跟宾语。而like之后不可直接接从句作宾语。it可用于某些动词（hate, appreciate）和介词之后作笼统宾语。2. he was nearly drowned once.when was_?_ was in 1998 when he was in middle school.a. that; it    b. this; this     c. this;

19、it    d. that; this解析a. 第一空用that指代上文提到的事情； 第二空用it指代第一空的that3. the parkers bought a new house but_will need a lot of work before they can move in.a. they     b. it     c. one     d. which解析 b此处it指代前面出现的a new house. it指代上文提到的同一

20、事物，为特指；而one通常指代同类事物中的某一个。4. someone is ringing the doorbell. go and see_.a. who is he     b. who he is      c. who is it     d. who it is解析 d此处it用作人称代词，指不明身份，性别的人；宾语从句应用陈述语序。5. in fact_is a hard job for the police to keep order in an i

21、mportant football match.a. this    b. that     c. there     d. it解析 d此处it用作形式主语。6. mike's mother kept telling him that he should work hard, but_didn't help.a. he    b. it     c. she   

22、60; d. which解析 b此处it用以指代前面的句子，可用that替换。7. since you have repaired my computer,_is no need for me to buy a new one.a. it     b. there     c. this     d. that解析 b考查固定句型 there is no need for sb to do sth8. the official made_clear that he would

23、 do everything possible to solve the problem.a. it     b. this     c. that     d. him解析 a此处 it用作形式宾语。9. do you like_here?oh, yes, the air, the weather and the way of life. everything is so nice.a. this     b. there 

24、    c. that     d. it解析 d此处 it泛指自然环境。10. bill's aim is to inform the viewers that cigarette advertising in tv is illegal,_?a. isn't it     b. is it     c. isn't he     d. is he解析a主语为 “ bill'

25、;s aim”。11._is mentioned above, the number of the students in senior high school is increasing.a. which     b. as     c. that     d. it解析 b非限制性定语从句中， as /which均可指代整句话的内容，但 which只能放在主句后，译为 “这一点”； as则位置灵活，译为 “正如”。12. it was with great joy_he

26、received the news that his lost daughter had been found.a. because     b. which     c. since     d. that解析 d考查强调句型。13. it was_back home after the experiment.a. not until midnight did he go_ b. until midnight that he didn't goc. not unti

27、l midnight that he went     d. until midnight when he didn't go解析 c考查not until结构强调句型。14. why! i have nothing to confess._you want me to say?a. what is it that     b. what it is that     c. how is it that     d. how i

28、t is that解析 a考查强调句型的特殊疑问句句式。15. it is the ability to do the job_matters not where you come from or what you are.a. one    b. that     c. what     d. it解析 b考查强调句型。被强调部分是not where you come from or what you are （but ） the ability to do the job.为了平衡

29、结构，部分移至句尾。课后作业1.it took us over an hour _ along the street.a.walk  b.to walk c.walking  d.walked 2.i think it a great honour _to visit your country.a.to invite b.inviting c.ha

30、ving invited  d.to be invited 3.many people now make _a rule to buy cards for their friends before christmas.a.themselves b.it c.that d.this 4._is very clear to ever

31、yone that he's round and tall like a tree. a.this b.what c.that d.it 5.in the united states, bus travel doesn't cost much as train travel, _?a.don't they 

32、; b.does it c.do they  d.doesn't it 6.someone is at the door, who is _?a.this b.that c.it d.he 7.it is raining cats and dogs._ .a.so it is b.so is it c

33、.neither it isd.neither is it 8.my home is in that tall building over there._ ?a.can it see b.can see it c.can be seen it d.can it be seen 9. _ raining

34、0;hard for 3 hours without stopping.a.it is b.it was c.it has been d.it had been 10.has the boy got his bicycle now?yes, the police gave _.a.him to him b.it

35、0;to it c.it to himd.him to it 11.it's no use _over spilt milk.a.cry b.crying c.that you cry d.for you to cry  12.it is important _ their offer.a.reject b.r

36、ejects c.to reject d.rejecting 13.has _been decided when we are to hold the sports-meeting?a.that b.this c.it d.what 14.did li lei call me while i was out?yes, it wa

37、s _ that called you.a.him b.he c.who d.whom 15.nothing is wrong with the radio _?a.isn't it b.is that c.is it d.isn't that 16.i don't know _makes her afr

38、aid of having her business discussed.a.what it is about mary that b.that is it abut mary what c.what is it about mary that d.that is about mary what 17. .it was with

39、 great joy _he received the news that his long lost son would return homea.as b.that c.so d.for18.i don't think _difficult for a chinese student to master a fore

40、ign language within five yearsa.that b.it c.too d.very 19.it's the second time you _late this week.a.arrive b.arrived c.have arrived d.had arrived 20.it will not be_we mee

41、t again.a.long before b.before long c.soon afterd.shortly after 21.it's demanded that we _there on foot.a.not to go  b.don't go  c.not go  d.won't go 22.“it” is often&#

42、160;used to _a baby.a.mean to b.stick to c.point to d.refer to 23.it was not until 1936 _basketball became a regular part of the olympic games.a.that b.when c.which d.then 24._you met the englishman?a.where it was that b.who it was that c.where was it&#