新人教选修6Unit3AhealthylifeGrammarIt的用法课件PPT学习教案

1、会计学1新人教选修新人教选修6Unit3AhealthylifeGrammarIt的用法课的用法课件件1. due to 6. stress 2. addicted 7.quit 3. eventually 8. drugs4. manage 9. alcohol5. cigarettes 10. adolescentsRevisionComplete the passage with the suitable words and phrases in their proper forms.第1页/共28页 Smoking _, drinking _ or taking other_ prod

2、uce many harmful effects and have no real benefits. So why do _do it? Some begin because they believe it makes them look cool. Others think it will help with _. In their life possibly _ pressure from their parents or teachers.cigarettesalcoholdrugsadolescentsstress due to第2页/共28页 Some just want to s

3、ee what it is like. What they dont realize is that they will get into the habit and _ become _. It will then be difficult to _the habit. A few people _to quit easily but for many it is a very painful process. Of course, the best way to deal with these drugs is not to start in the first place.eventua

4、llyaddicted quitmanage第3页/共28页 The use of “it”第4页/共28页Discovering “It”1. It rains heavily. 2. It is 20 kilometers from Granddads house to James.3. It is November 11, 2005.4. It is 9 oclock at night. 5.Itll be lovely in the garden tonight 6. It is bad to smoke.7. It is likely that he will succeed.天气天

5、气距离距离日期日期时间时间形式主语形式主语环境环境形式主语形式主语第5页/共28页1. it的最基本用法是作代词，主要指刚提到的的最基本用法是作代词，主要指刚提到的事物，以避免重复事物，以避免重复:Xian is a beautiful city, isnt it?2. 也可以指动物或婴儿也可以指动物或婴儿(未知性别的婴儿或孩未知性别的婴儿或孩子子):Is this your dog？No, it isnt.一、一、it 作人称代词作人称代词3.-Someone is ringing.Who might it be ? -It must be my friend Tom. He wants t

6、o see you.第6页/共28页it有时并不指具体的东西，而泛指天气、时间、日期、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，称为非人称的距离、价值、度量、温度、环境等，称为非人称的it：指天气：指天气：It is a lovely day, isnt it?It is a bit windy.2. 指时间指时间: It was nearly midnight when she came back.3. 指环境指环境: It was very quiet in the caf. 4. 指距离：指距离：It is half an hours walk to

7、the city centre from my home.二、二、it作非人称代词作非人称代词 第7页/共28页5. 指日期：指日期：-Whats the date today? -Its May 1, 2007.6. 指季节：指季节：It is summer now.7. 指度量：指度量：It is about 5 kilograms.8. 指价值：指价值：-Whats the cost of the T-shirt?-It is 150 yuan.第8页/共28页替代作主语的从句、动词不定式、动名词，而把真正作主语的从句、动词不定式、动名词置于句尾。三、三、it用作形式主语用作形式主语第9

8、页/共28页（1）It be adj.（for sb.）to do sth.此处此处adj. 通常为描述事件的形容词：通常为描述事件的形容词：easy，difficult，hard，necessary，unnecessary，possible，impossible，likely，unlikely，right，wrong，important，unimportant，legal，illegal，well-mannered，ill-mannered，polite，impolite，clear，obvious，certain，suitable，proper，fit，useful，useless，dan

9、gerousIt is illegal（for a teenager）to drive a car without a license.1. 代作主语的动词不定式代作主语的动词不定式第10页/共28页（2）It be adj. of sb. to do sth.此处此处adj. 通常为描述人的形容词：通常为描述人的形容词：kind，unkind，nice，rude，cruel，considerate，thoughtful，thoughtless，careful，careless，silly，foolish，stupid，clever，wise，crazy. Its kind of you to

10、 help me with the problem.第11页/共28页Its no good/use doingIts（well）worth doingIts（well）worth ones while doing/to doIts（well）worth while doing/ to doIts no use crying over spilt milk.(3) It替代作主语的动名词的常见句型替代作主语的动名词的常见句型第12页/共28页2. it作形式主语替代主语从句作形式主语替代主语从句 It is clear ( obvious，true，possible, certain ) th

11、at . 该句型中该句型中it 是形式主语，真正的主语是是形式主语，真正的主语是that 引导引导的主语从句，常译为的主语从句，常译为“清楚（显然清楚（显然, 真的真的）” 是主语从句最常见的一种结构。例如：是主语从句最常见的一种结构。例如： It is very clear that hes round and tall like a tree. It is adj. +clause 第13页/共28页It is said (reported/ learned/believed/thought/known/told/hoped.) that . 该句型中的该句型中的it 仍是形式主语，真正主

12、语是仍是形式主语，真正主语是that 引引导的主语从句；该结构常译为导的主语从句；该结构常译为“据说（据报道据说（据报道，据悉），据悉）”。It is said that he has come to Beijing.It is reported that another earth satellite has been put into orbit.It is v-ed that=sb./sth. is to do 第14页/共28页 It is + noun +从句从句 It is a pity (a shame /an honor /a good thing/a fact /a surp

13、rise/. ) that . 该句型中，该句型中，that后的从句一般用虚拟语气（后的从句一般用虚拟语气（should + 动词原形），动词原形），should可省去表示出乎意料，常译可省去表示出乎意料，常译为为“竟然竟然”。没有这种意义时，则不用虚拟语气。例如。没有这种意义时，则不用虚拟语气。例如：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！这种事竟然发生在你们班上，真是遗憾！It is a pity that he is ill. 他生病了，真遗憾！他生病了，真遗憾！ 第1

14、5页/共28页四、四、it作形式宾语作形式宾语 当复合宾语中的宾语是不定式、动名词当复合宾语中的宾语是不定式、动名词宾语从句时，往往把宾语放在它的补足宾语从句时，往往把宾语放在它的补足语后面，而用语后面，而用it 作形式宾语，放在宾语作形式宾语，放在宾语补足语之前。补足语之前。 该句型中的该句型中的it 作形式宾语，常用的动词有作形式宾语，常用的动词有think, believe, make, find, consider, feel等。等。 第16页/共28页 I think it no use arguing with him.我认为和他争吵没有用。我认为和他争吵没有用。 I found

15、it very interesting to studyEnglish.我发现学英语非常有趣。我发现学英语非常有趣。He made it clear that he was notinterested in this subject.他非常清楚地表示他对那门学科不感兴趣他非常清楚地表示他对那门学科不感兴趣。第17页/共28页五、用于强调句型中五、用于强调句型中It is/was + 被强调部分被强调部分 + that/who . It is not until + 被强调部分被强调部分 + that . I met Tom in the park yesterday.1) It was I w

16、ho met Tom in the park yesterday.2) It was Tom who 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.It was five oclock _I got home.It was at five oclock_ I got home.whenthat第18页/共28页强调句用以强调主语，宾语，介词宾语以及状语。（强强调句用以强调主语，宾语，介词宾语以及状语

17、。（强调人时用调人时用that和和who whom皆可）皆可） It was she who that had been wrong是她错了。是她错了。 ( ) It was the girl whom that I met just now我刚才遇见的就是这个女孩。我刚才遇见的就是这个女孩。 ( ) It was Tom to whom the teacher had talked老师与其谈话的那个人是汤姆。老师与其谈话的那个人是汤姆。 （ ） It was on Monday night that all this happened所有这一切就是在星期一的晚上发生的。（所有这一切就是在星期

18、一的晚上发生的。（ ）主语主语宾语宾语介词宾介词宾语语状语状语第19页/共28页It is not until + 被强调部分被强调部分 + that . 该句型也是强调句型。主要用于强凋时间状语，译成汉该句型也是强调句型。主要用于强凋时间状语，译成汉语语 “直到直到才才”，可以说是，可以说是not . until . 的强的强调形式。例如调形式。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 d

19、ark 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.第20页/共28页六、六、It 常用的固定搭配常用的固定搭配 1.make it（1）在口语当中相当于）在口语当中相当于succeed，表示：成功，表示：成功、做到、说定、赶上、及时到达、做到、说定、赶上、及时到达 例例 Its hard to make it to the top in show business.（2）在口语

20、中相当于）在口语中相当于fix the date for，表示，表示“约定好时间约定好时间”例例 Shall we meet next week？OK. We just make it next Saturday.第21页/共28页2. take it/things easy 相当于相当于Dont worry or dont hurry. 用来劝告别人用来劝告别人，表示，表示“不要慌，别担心，沉住气不要慌，别担心，沉住气”Take it easy！ He will do it well.3. It all depends/that all depends 在口语中，相当在口语中，相当于于it

21、hasnt been decided yet，表示，表示“那得看情况那得看情况，还没有定下来，还没有定下来” Are you going to the countryside for holiday？It/That all depends.4. Its up to sb. 在口语中，相当于在口语中，相当于its decided by sb. 表示表示“由由决决定，由定，由负责，取决于负责，取决于”Shall we go out for dinner？Its up to you.第22页/共28页Rewrite the following sentences, using “Its that”.

22、Exercises第23页/共28页1. Im still fit enough to cycle 20 kilometers in an afternoon. That is amazing.2. My father has quit smoking. That is wonderful.3. You could suffer from bad health if you keep smoking. ( It is likely).4. China produces one third of the worlds cigarettes. It is reported.It is amazing that I am still fit enough to cycle 20 kilometers in an afternoon.It is wonderful that my fath