it用法

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李某某Unit 3 A healthy life***学Grammar: the use of “it”Aims:

I. Review useful words and expressions

II. Learn useful “it” structures Learning about languageMatch the words with the same meanings due to tough adolescent accustomed to quit effect addicted to unfit be used to because of influence young people unhealthy difficult stop unable to stop taking sth as a habitUseful words and expressionsrevision It is amazing to see grandad is still fit at 82. His long and active life must be due to the healthy life he lives. However, like many other adolescents, his grandson is addicted to smoking now. It was easy for him to begin smoking. But now he thinks it tough to quit smoking, for his body has been accustomed to nicotine. So grandad tells the harmful effects of smoking and warns him that when he realizes he is unfit, it will be too late.Find out “it” sentencesLead-in What are the use of “it”? 形式主语 It is amazing to see grandad is still fit at 82.

It was easy for him to begin smoking.

He thinks it tough to quit smoking.

It will be too late.

I can’t find my pen. Have you seen it? 形式宾语非人称代词:weather, time, distance…人称代词It is amazing to see grandad is still fit at 82.

It was easy for him to begin smoking. Discovering the sentence structure 形式主语It is + ……adj + (for sb)to do sth.此处adj. 通常为描述事件的形容词：

easy，difficult，hard，necessary，impossible，important，obvious，useful， legal，illegal, dangerous，clear …此处adj. 通常为描述人的形容词：

kind，unkind，rude，cruel，considerate， careless，foolish， stupid，wise，clever , crazy, impolite, polite, generous, mean... Discovering the sentence structure 形式主语It is kind of you to do me a favor.

It is generous of you to lend the money to me.It is + ……adj + (of sb)to do sth.It is a rule to keep silent in the meeting.

It is a duty to help others.It is + n + to do sth.形式主语 Discovering the sentence structure 此处 noun. 通常为:

a good idea, a shame, a pity, an honor, one’s duty, a fact, a surprise,

a pleasure, good/bad manners…1) It takes me half an hour to ride to school every day.

2）It takes courage to do the job.形式主语 Discovering the sentence structure 1）It takes\took sb some time to do sth

2）It takes\took something to do sth照顾伤员是需要耐心的It takes patience to look after the injuredQuit drinking?

Tough! Complete the “it” sentencesgive up drinking, hard, it is, for themIt is hard for them to give up drinking.It is tough for them to __________.quit drinkingIt is + adj\n+ to do sth.See!

A big hen ploughing! It is a surprise _______________.

(看到如此大的一只母鸡是一件很惊讶的事情)to see so big a hen It is a wonder ____________________.to see a big hen ploughingIt is no use _________________

(cry over spilt milk).crying over spilt milk.It is+

+ doing sth.no use\no good\useless\a waste of…It is no good _________________

(stay up too late).staying up too late.形式主语Discover the sentence structure1. It is amazing that at my age I am still fit.

2. It is a wonder that he is still alive.

3. It is said that smoking can lead to cancer.Discover other “it” structures It is + adj + that...

It is + n + that...

It is + done + that…Group work Try形式主语 It is believed that ________________________ (popular than).PK It is interesting that _____________________________.Xiao Shenyang wears women’s clothesXiao is more popular than Zhaothink\find +

I think important to make a summary in time.

I find a good habit that we make a summary in time.

有相同用法的词:consider, think, believe, make, feel, find

How can we learn English well?

1). 我认为每天读英语很重要。(think it …to do…)

2). 我发现我们多说英语很有帮助。(find it…that)I think it important to read English every day.I find it helpful that we speak English as much as possible.it + + itit形式宾语adj\nto do\that…表示喜怒哀乐的词I dislike when I am asked to make a speech.

She won’t like if you arrive late.

I would appreciate if you could come to my birthday party.

他讨厌别人用他的电脑（dislike…when…）He dislikes it when others use his computer.appreciate, like, love, enjoy,

dislike, hate, prefer…itit形式宾语itDiscover other “it” structures It is/was +被强调的部分+that+其他

Is/Was it+被强调的部分+that +其他

Wh--+is/was it that +其他Group work TryIt 用于强调句It was yesterday that he met Li Ping.

Was it yesterday that he met Li Ping？

When was it that he met Li Ping？

It was not until 12 o'clock last night that my father came home. It 用于强调句型中I did not recognize him until he took off his glasses.(变成强调句，强调not until…)

It was not until he took off his glasses that I recognized him. It is Friday today.

It was very cold last Monday.

It is about 8:30 now.

It is about 3km from here to the station.

It is 40°C ! You got a high fever! Discovering the use of “it”“it”指代时间，日期，天气，距离，温度，度量，自然现象等等非人称代词My key is missing, I can’t find it anywhere.

He aimed at the bird and missed it.

3) I had a talk with the student. It was very helpful to her.

4) The boy becomes fatter and fatter and it makes his parents worried. Discovering the use of “it”“it”代表前文刚提到的事物或动物， 避免重复 人称代词1) Her new baby is tiny. It only weighs 2 kilos.

2) --Who is knocking at the door?

--It’s me. Discovering the use of “it”“it”指代性别不明或性别被认为不重要的婴儿或人 人称代词1）--Listen. Someone is crying.

--Oh, it must be Mary.

2）Someone must have been here. But we have no idea who it was. Discovering the use of “it”“it”用于指明或确认某人的身份 人称代词注意：一般说来，在指代身份或性别明确的人时，通常要根据情况用代词he／she；若是指代身份或性别不明的人，则用代词it。比较：1) A tall man stood up and shook hands with her. It was the general manager.

2) The general manager just called. He told us to wait for him at the gate.Exercises:

a) Jim is at the door．____wants to see you．

b) Someone is at the door.____must be Jim．

That；It B. It； He

C. He； It D. Who；He形式主语：

1. It is surprising\a surprise to see so big a hen.

2. It is no good\no use crying over spilt milk.

3. It is wonderful\a wonder that I am still alive.

4. It is said that smoking can lead to cancer.Let’s review “it” structures …

possible

It is / was + adj. necessary + ( for sb. ) to do sth. / clause

important

… …

one’s duty

It +is /was + n. one’s hope + ( for sb. ) to do sth /clause.

an honour

… …

said

It is / was p.p. known + that-clause

believed

…形式主语形式宾语：

1. I think it necessary to make a summary.

2. I find it important that we should make a summary.

3. I think it a wonder to see the opening ceremony (开 内容过长，仅展示头部和尾部部分文字预览，全文请查看图片预览。 love you so much I want to marry you.”ititItItItItItit that(that/which)thatthatFill in the blanksit代词人称代词非人称代词引导词

(无意义)it 用在强调句中 it 用作形式主语

it 用作形式宾语conclusion：Homework Rewrite what you have learnt in class.

Finish exercises 1&2 on P20, and 2 on P21.

Complete the form to evaluate(评价) your study.[文章尾部最后500字内容到此结束,中间部分内容请查看底下的图片预览]

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