Unit3It用法总结课件- 高中英语人教新课标选修六.pptx

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1、It is never too old to learn. 活到老活到老, 学到老。学到老。 It is no use crying over spilt (溢出的溢出的) milk. 覆水难收。覆水难收。It takes three generations (代代) to make a gentleman. 十年树木十年树木, 百年树人。百年树人。 Proverbs(谚语谚语) with “It”The use of “it”一、一、 用作人称代词用作人称代词, 代表前面提到的人或事物代表前面提到的人或事物1) Whos it? _ me.2) Look at the picture. _

2、is a picture of our school.ItsIt二、用于代替指示代词二、用于代替指示代词this 和和that。-Is this jacket yours?-Yes, _ is.it三、用以表示时间、距离、天气、气候、三、用以表示时间、距离、天气、气候、 季节、环境等季节、环境等1) It is half past eight now.2) Its only half an hours walk from here to our school.3) I hope that it will be fine tomorrow.4) It has rained much this y

3、ear.5) Its spring now.6) Its quiet here.TimeDistanceWeatherWeatherSeasonCircumstance替代作主语的从句、动词不定式、替代作主语的从句、动词不定式、动名词动名词, , 而把真正作主语的从句、而把真正作主语的从句、动词不定式、动名词置于句尾。动词不定式、动名词置于句尾。四、四、it 用作形式主语用作形式主语1. 代替动词不定式做主语代替动词不定式做主语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,

4、necessary, important, possible, dangerous, right, wrong, legal, useful, useless, It is illegal to drive a car without a license.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 , nice, rude, polite, cruel, considerate, thoughtful, careful, careless,foolish, stupid, clever, wise, cr

5、azy.Its kind of you to help me with the problem.Its (well) worthwhile doing/ to do这值得我花时间这值得我花时间/精力勘察这个城市精力勘察这个城市It is worthwhile exploring/to explore the city.Its no good/ use/pleasure doing It is no use studying only at school.2. 代替动名词做主语代替动名词做主语3. 代替主语从句作形式主语代替主语从句作形式主语It is clear ( obvious, true

6、, possible, certain ) that .（注意没有（注意没有it is sure that）该句型中该句型中it 是形式主语是形式主语, 真正的主语是真正的主语是that 引导的主语从句引导的主语从句, 常译为常译为“清楚清楚(显然显然, 真的真的)”, 是主语从句最常见的一种结构。是主语从句最常见的一种结构。e.g. It is very clear that he is tall.It is adj. + 从句从句It is said (reported/believed.) that . 该句型中的该句型中的it 仍是形式主语仍是形式主语, 真正主语是真正主语是that

7、引导的主语从句引导的主语从句; 该结构常译为该结构常译为“据说据说(据报道据报道, 据悉据悉)”。It is said that he has come to Beijing.He is said to have come to Beijing.It is v-ed that It is + noun + 从句从句 It is a pity (a shame /an honor /a good thing/a fact /a surprise/. ) 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

8、去。表示可省去。表示出乎意料出乎意料, 常译为常译为“竟然竟然”。没有这种意义时。没有这种意义时, 则不用虚拟语气。如：则不用虚拟语气。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这种事竟然发生在你们班上, 真是遗憾！真是遗憾！It is a pity that you cant come. 你不能来，真是遗憾！你不能来，真是遗憾！五、五、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，宾语当复合宾语中的宾语是不定式、动名词，宾语从句时从句时, 往往把宾语放在它的补足语后面

9、，而用往往把宾语放在它的补足语后面，而用it 作形式宾语作形式宾语, 放在宾语补足语之前。放在宾语补足语之前。 该句型中的该句型中的it 作形式宾语作形式宾语, 常用的动词有常用的动词有think, believe, make, find, consider, feel等。等。 I think it no use arguing with him.参考：参考： It is no use arguing with him.I found it very interesting to study English.参考：参考： It was very interesting to study Eng

10、lishHe made it clear that he was not into the car.参考：参考： It was clear that he was not into the car. Many new reserves have been built, _(这使这些猴子可能这使这些猴子可能) to survive. which makes it possible for the monkeysit作形式宾语的特殊句型结构:动词+ it + if/that/when动词有喜欢类：enjoy, like, appreciate, prefer 讨厌类：hate, dislikeI

11、would appreciate it if you paid in cash.I like it when my mother is happy.I hate it when people talk with their mouths full. 其他类：see to it that, owe it to sb thatrely/depend on it that, take it for granted that,leave it to sb that/whether, make it a rule that注意：keep/bear in mind that 中间没有it See to i

12、t that the baby must be fed when hungry but not too much. 留意，务必留意，务必He took it for granted that he would pass the exam. 想当然地认为想当然地认为Dont depend/rely on it that he will arrive on time. (指望指望)I owed it to Tom that I found the job I wanted. 把把归功于某人归功于某人 I will leave it to you whether you go abroad or n

13、ot. 把把留给留给决定决定/ 由由决定决定I have made it a rule that I will do some English reading every day.习惯做，规定必须做，经常做习惯做，规定必须做，经常做六、用于强调句型中六、用于强调句型中It + be+被强调部分被强调部分 + that/who(a person)从句从句I met Tom in the park yesterday.1) It was I who met Tom in the park yesterday.2) It was Tom who I met in the park yesterday

14、.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.whenthatIt 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该句型也是强调句型。主要用于强凋时间状语, 译成汉语译成汉语 “直到直到才才”, 可以说是可以说是not . until . 的强调形式。如的强

15、调形式。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 didnt realize she was a famous film star until she took off her dark glasses.七、七、it 常用的固定搭配常用的固定搭配 1. make it在口语当中

16、相当于在口语当中相当于succeed, 表示表示: 成功、成功、做到、说定、赶上、及时到达做到、说定、赶上、及时到达 如如: I wonder if they can make it.我在想他们是不是能办得到。我在想他们是不是能办得到。Most of the time they make it.1. 很多时候他们真的做到了。很多时候他们真的做到了。 2. take it easy 相当于相当于Dont worry or dont hurry. 用来劝告用来劝告别人别人, 表示表示“不要慌不要慌, 别担心别担心, 沉住气沉住气”Take it easy！He will do it well.3.

17、 It all depends/that all depends 在口语中在口语中, 相当于相当于it hasnt been decided yet, 表示表示“那那得看情况得看情况, 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. 在口语中在口语中, 相当于相当于its decided by sb. 表示表示“由由决定决定, 由由负负责责, 取决于取决于” Shall we go out for dinner？ Its up to you.5.Its

18、none of ones business. 5.Its none of ones business. 不关不关的事的事Its none of your businessIts none of your business. . 关你屁事关你屁事 It is none of their business to know It is none of their business to know what their neighbors are doing. what their neighbors are doing. 他们的邻居正在做什么不关他们一点事。他们的邻居正在做什么不关他们一点事。Exe

19、rcises:1. I hate _ when people talk with their mouths full. A. it B. that C.these D. them 2. In which play is _ your brother will appear? A. that where B. this when C. it that D. it where3. _ the harder you work, the better result youll get. A. Its believed that B. What we believed that C. Its fact

20、D. What the fact isACA4. Nothing can stop us, _? A. cant it B. can it C. cant we D. can we5. -Can you tell us how the war was won in the end ? - I dont know, _. A. Its hard to say B. It doesnt matter C. Its no use saying D. It depends on the workBA6. Does _ matter a lot whether she will come here by

21、 bus or by taxi? A. The thing B. that C. it D. her mother7. -Listen! Someone is unlocking the goods. -_ must be your father coming back from Beijing. A. It B. There C. That D. ThisCA8. -Have you written a letter to her ? -No, but Im going to write _ tonight. A. it B. that C. those D. one10. _ now pr

22、etty late, we took candles and went upstairs. A. Being B. For C. For being D. It beingDD11. The teacher told the students _. A. why to learn English important B. why was it important to learn English C. why it important to learn English D. why it was important to learn English12. The TV sets made in

23、 China are much better than _ in Japan. A. that B. those C. them D. itDB13. Our food and service are better than _ used to be. A. it B. we C. they D. them14. -Im looking for a flat. -Would you like _ with _ garden? A. it; the B. it; a C. one; a D. one; the15. _ four years since I joined the Army. A. It was B. It is C. There is D. There wasCCB