高三英语复习代词it用法-公开课 (共51张PPT)

课件51张PPT。It, it , it , it, it?Learning aims:
1. Learn the basic usage of the pronoun 'it'.
2.Try?to?use?'it'?in?different language?situations.
3. Master some sentence patterns of 'it'. It is never too old to learn.
活到老, 学到老。
It is no use crying over spilt milk.

It never rains but it pours.
It is easier to fall than to rise. Proverbs with 'it'摔倒容易爬起来难。(学坏容易学好难)覆水难收。不鸣则已, 一鸣惊人。The use of ‘it’用作代词(pronoun)
做形式主语(formal subject)
作形式宾语(formal object)
强调句型(emphatic sentence)
几个常用句型
习惯用法(idioms)-What do you think of the cartoon?
-It’s one of the best ones that I’ve seen.Miss Shen is my mummy.It’s my little girl.Who’s the lovely baby? It
can be used as personal
pronouns(人称代词), referring to
the person, animal or matter mentioned above,or the person
who you are not sure of sex.summary 1高考再现
He asked his teacher, “Sir,the water is awful. Why did you pretended to like_____38___?”
(2010年广东)it It is December 12 today and it is a sunny day. The lazy sheep decides to go for a walk to the park, though it is two miles away. It lies in the south of the Sheep Village.Read the passage and pay attention to "it" It is winter now and it is 15°C. It's about 10 a.m. and it is quiet in the park, so the lazy sheep falls asleep in the park. Unluckily, the big big Wolf gets close to him and catches him. Help!
'it' can be used as impersonal
pronouns(非人称代词), referring to not exact things but _____,________,______, _________, ______, ____________, ______,
____________etc.dateweathertimedistanceplacetemperature season circumstance Summary 21. Whose umbrella is that?
It's Mary's.
2. What's this?
It's a rose. 'it' can be used as demonstrative pronoun
(指示代词), referring to 'this' or 'that'.Summary 3Fill in the blanks with one, ones, it, that, those.
(1) — I can't find my watch.
—You haven't found ______?If you want to buy a new ______, I suggest you buy ______ made in China.
(2) We've got a big cup and two small ______.
(3)The weight of an elephant is much greater than ______ of a tiger.
(4)The books on the first shelf are easier than ____________ on the second shelf.
(5)The boy told his story and ______ of the girl upstairs. itoneoneonesthatthose/ the onesthatConclusion:
①指代上文提过的事物时, it指的是同名同物, 相当于the＋名词；
②one指的是同名异物, 表示单数可数名词；复数形式用ones；
③that后面常有后置定语, 有特指意义, 代替不可数名词或单数可数名词；
④复数名词用those，相当于the ones。

It + be + adj.n.p.p. + (for sb.) to do sth.
doing sth.
clause
Sentence pattern:formal subject (形式主语)It was so comfortable to walk on the grass.
It is said that Wang Lihong got married.
It is no good cheating in the exam.It + be + adj./n./p.p. + clause
It is clear ( obvious, true, possible, certain....) that .....
It is important ( necessary, strange, natural...) that ... (should do)
It is a pity ( a shame, an honor ... ) that ...
It is said (reported, believed, known, learned....) that ...
It is suggested (ordered, demanded, insisted, commanded... ) that ... (should do) It is true that to live a better life we have to accelerate the development of economy. But it is also important that we should do more to protect our environment. It is a pity that many people don't realize the significance of environmental protection.
It is known to us all that how you treat life, and how life treats you. Therefore, it is suggested that everyone should do a bit to contribute to the beauty of our motherland.Translation
自11月8日起，本年度强度最大的台风“海燕”肆虐菲律宾。据报导“海燕”的最快时速达到每小时260千米。很遗憾这次台风带来极大的破坏，显然至少有1万人丧生。将食品和水送到灾区是十分必要的。
Since November 8th, Haiyan, the strongest typhoon in the world so far this year, has hit the Philippines. It is reported that the fastest speed of Haiyan is/reaches 260km per hour. It is a pity that the typhoon has caused serious/great damages. And it is clear/obvious that at least 10,000 people were killed by Typhoon Haiyan. Therefore, it is important that food and water should be sent to the disaster-stricken areas.Ⅲ 'it' used as formal object(形式宾语)sb. + think/find/consider/make + it + adj. /n. + to do/doing/clause
sb. + like/love/enjoy/hate/appreciate + it +when/if…
sb. + keep/bear it in mind/take it for granted that…Sentence patterns: make clear
find possible
S + think + it + necessary +(for sb.) to do/doing /clause
feel important
… …Sentence patterns:形式宾语 …
a rule
S + V + it + one’s duty + ( for sb. ) to do/doing /clause
an honor
…
S + V + it + no good + doing sth.
no use Rewrite the sentences.
1. We think that it is our duty to clean our classroom every day.
We think ____ ____ ____ to clean our classroom every day.
　2. He felt that learning English well was important .
He felt ___ _________ ________ English well.
　3. They found that that they would finish their work in two days was difficult.
They found ___ ________ that they would finish their work in two days.it our dutyit important learningit difficultTranslation
我觉得学习英语很有趣，但他却明确表示他对这个学科不感兴趣。我认为和他争执没有用。我想好好学习是我们的责任，因此我们约定每天早晨读英语。

I _____________________ to study English, but he__________________ he is not interested in this subject. I _____________ arguing with him. I________________ to study hard, so we _______________ to read English in the morning everyday.find it very interesting makes it clear thatthink it no usefeel it our duty make it a rule sb. + like/love/enjoy/hate/appreciate+ it + when /if…
it用在不能直接跟宾语从句的动词, 尤其是表示好恶的动词后面。如：

I hate it when I have to get up early in the morning.

高考真题1. I like it in the autumn ______ the weather is clear and bright.
A. that B. when C. what D. how

2. I would appreciate it __ you call back this afternoon for the doctor's appointment.
A. until B. if C. when D. that
sb. + keep/bear it in mind/take it for granted that…Don't take it for granted that the goats will come here! Go and catch them!I should keep it in mind that the pleasant goat is tricky. I will be back!Reading Advice from GrandadA healthy life1)It is a beautiful day here and I am sitting under the big tree at the end of the garden. ( Line 1)
2)It seems amazing that at my age I am fit enough to cycle 20 kilometers in an afternoon. (Line2)
3)It's my birthday in two weeks' time... (Line 3)
4)Your mother tells me that you started smoking some time ago and now you are finding it difficult to give it up.(Line 7)形式主语非人称代词(time)人称代词(代替前面提到的smoking)非人称代词(weather)形式宾语5)Believe me,I know how easy it is to begin smoking and how tough it is to stop. (Line 8)
6)It was time to quit smoking. (Line 27)
7)It(the advice) might help you to stop and strengthen your resolve. (Line 29)
8)It is not easy to stop smoking. (Line 1,Page 19)非人称代词 (time)形式主语人称代词(指代前面提到的advice)形式主语口诀：
代词 it 本意它, 既可指这又指那;
时间天气均可指, 谈到距离也用它;
形式主宾均可做, 四个句型别忘了。Sum Up1.Complete the following exercises.
2.Finish exercise 2 on Page 21.HomeworkGrammatical filling or choosing the best answer
1. It?took?us?over?an?hour?_______?(walk) along?the?street.
2. I?think?it?a?great?honor?_______(invite) to?visit?your?country.
3. It's?demanded?that?we?_______(not?go) there?on?foot.
4. It?is?important?that?she?____________(speak) with?Mr?Williams?immediately.
5. In?the?United?States,?bus?travel?doesn't?cost?much?as?
train?travel,?_______?
A.don't?they?　?B.does?it C.do?they　?D.doesn't?it?
6. Someone is ringing the doorbell. Go and see__.
A. who is he B. who he is
C. who is it D. who it is?
??to talkto be invited(should) not goshould speak7. —It?is?raining?cats?and?dogs.
　—　_______?.
A. So?it?is　 ? B. So?is?it
C. Neither?it?is　　D. Neither?is?it
8.?_______?raining?hard?for?3?hours?without?stopping.
A.It?is　　　? B. It?was　　　?
C.It?has?been　　　?D. It?had?been?
9. It?is?important?_______?their?offer.
A. reject　 B.rejects　?C.to?reject　?D.rejecting?
10. Has?_______been?decided?when?we?are?to?hold?the?
sports-meeting?
　A.that　　　?B.this　　?C. it　 ?D.what?
11._______that?she?has?gone?to?the?United?States?
　A.Was?it?true　　　?B. Is?it?true
C. It?is?true　　 D. It?was?true?Ⅱ Complete the following sentences.
1. _________________ (正在下雨) when they left the station.
2. _________________ (对他来讲很困难) to study two languages.
3. It is no use ___________________________, you are simply wasting time.
4. _________________(不要紧/没关系)whether we go together or separately.
5. ___________________ (普遍认为)that China’s fast development in economy will benefit many countries in the world.
6. His parents managed to _________________ for him to go abroad. (possible)It was rainingIt’s difficult for himarguing with them about this questionIt doesn’t matter It’s generally believedmake it possible1. It was raining
2. It’s difficult for him
3. arguing with them about this question
4. It doesn’t matter
5. It’s generally believed
6. make it possibleRewrite these sentences using an “it” structure.1.Giving up smoking is difficult.
It is
2.Some young people think they look attractive when they smoke.
It seems
3.Most people believe smoking causes cancer.
It is believeddifficult to give up smoking.that some young people think they look attractive when they smoke.that smoking causes cancer.4.You are not allowed to advertise cigrettes in this country.
It is illegal
5.You could suffer from bad health if you keep smoking.
It is likely
6.You have to take pills to control your bloody pressure.
It is necessaryto advertise cigrettes in this country.that you could suffer from bad health
if you keep smoking.for you to take pills to control
your bloody pressure.Ⅳ 'it' used in emphatic sentence (强调句中)It is/was? + 被强调部分 + that/who ...
It is not until + 被强调部分 + that ... I met Tom in the park yesterday.1) It was I who met Tom in the park yesterday.2) It was Tom that I met in the park yesterday.3) It was in the park that I met Tom yesterday.4) It was yesterday that I met Tom in the park.强调时间状语和地点状语时与其他从句的区别：
1.? It was in 1921 that our Party was founded.
2.? It was 1921 when our Party was founded.
3. It was at the street corner that I met Lucy yesterday.
4. It was the street corner where I met Lucy yesterday. Test:1. It was on the farm ______ we practised planting crops.
2. It was the farm _______ we learned a lot .3.Was it in this palace _____ the last emperor died?　
A. that B. in which 　C. where D.which4 .It was yesterday when we chatted a lot on line.(改错）
thatwherethatIt was in New Zealand __ Elizabeth first met Mr. Smith.
A. that B. how C. which D. when
It was with great joy __ he received the news that his lost daughter had been found.
A. because B. which C. since D. that
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。例如: It was not until she took off her dark glasses that I realized she was a famous film star.
= Not until she took off her dark glasses did I realize she was a famous film star.
= I didn’t realize she was a famous film star until she took off her dark glasses.1. 我们直到半夜才到达露营地。
It was not until midnight that we reached the camp site.
= We _____________ the camp site _____ midnight.
2. It was not until we had stayed together for a couple of weeks that I found we had a lot in common.
=___________ we had stayed together for a couple of weeks ___________ we had a lot in common.didn't reachuntilNot untildid I findit强调句型的省略形式
(1)–Where did you get to know her?
–It was on the farm ___we worked.
A. that B. there C. which D. where
正确答案：D。答句完整形式应为：It was on the farm where we worked that I got to know her.
(2) ---Who made such a stupid mistake?
---___Tom.
A. It was B. He was C. That was D. There was
正确答案：A。答句完整形式应为：It was Tom who made such a stupid mistake.考查和定语从句连用 1. It was the university ____ he was teaching ______ sent him to America.
2.It was playing computer games ____ cost the boy plenty of time ____ he ought to have spent doing his lessons.
wherethatthat which 和名词性从句连用It is not who is right but what is right ______ is of importance.that和状语从句连用 It was after he got what he had desired ____ he realized it was not so important.
thatⅤSome sentence patterns 1. It appears /seem that... 在...看来似乎
2. It happened that... 碰巧，偶然
3. It is likely that... 很可能，大概
4. It is (high) time that ＋ 主语＋ did/should do
该做某事的时候了……
5. It is the first ( second ... ) time+ that +主语＋
have/has done 某人第几次做某事的时候
6. It is ＋时间段＋since ＋主语＋did非延/延续
自从…以来已有一段时间/不做某事已经多久了
7. It is +时间段+before... …..才…..1. I’m sorry you’ve been waiting so long, but it’ll still be some time ______ Brian gets back.
2. It was not long ______ he left.
3. That was really a splendid evening. It’s years _____ I enjoyed myself so much.
4. –It’s thirty years since we last met.
--But I still remember the story, believe it or not, ____ we got lost on a rainy night.
5. Isn't it time you ____ (get) down to finishing the papers?
beforebeforesincethatgot1.他来看我时碰巧我在看电视。(happen)
It happened that I was watching TV when he came to see me.
2. 似乎他总是正确的。(seem)
It seems that he is always true.
3. 这是他第二次来这座城市。
It is the second time (that) he has come to visit the city.
4. ___________(似乎) that some young people think they look attractive when they smoke.It seemsⅥ Idioms (习惯用法)
make it 成功, 安排在或定在某时间
forget it 别提了, 忘了它吧
Don’t mention it. 别提了, 表示不用谢
It doesn’t matter. 没关系
It(That) depends. 视情况而定
You guessed it. 你猜着了
It’s hard to say. 很难说
It’s up to you to do sth.由你来决定做某事