it用法ppt课件

1、 Part I1.It作代词作代词Its 10:08Its a large sum of moneyIt was very quiet in the caf.It is half an hours walk to the city centre. It weighs only 3 kilosIts lovelyIt is fine today.Who is it? Its me.It 可指代时间、可指代时间、间隔、环境、间隔、环境、金钱、天气、金钱、天气、(动动)物。物。指人是指不明指人是指不明性别或婴儿。性别或婴儿。 _ was a sunny day. Peter decided to g

2、o for a walk to the park, though _ was two miles away. _ was so comfortable to walk on the street. itItIt Suddenly _began to rain. He found _ hard to walk there. Then he took a bus home. Unfortunately _ went wrong. When he got home, he was wet through. Thus _ was a day that he would never forget.iti

3、tititIt指代时间常用句型指代时间常用句型【留意】 it指代时间时，有如下一些句型： (1) 是某人做某事的时候了。It is time for sth./ (for sb.)to do sth. / that (2这是某人第次做了某事。 It is the first / secondtime that (如今完成时) It was the first/secondtime that (过去完成时)should do did孩子们该上床睡觉了孩子们该上床睡觉了It is time that children should go to bed. = It is time that chil

4、dren went to bed. =It is time for children to go to bed这是我们全家第一次面对面地目击月光这是我们全家第一次面对面地目击月光It was the first time that we had seen the moon face to face.在大庭广众之中说话，她还是第一回呢。在大庭广众之中说话，她还是第一回呢。It is the first time that she has ever spoken before such a big audience.(3)要过多久才会做某事要过多久才会做某事 It + will be +段时段时+

5、before(普通如今时普通如今时) 过了多久才过了多久才了了 It + was + 段时段时+ before(过去时过去时)(4)自从自从.以来已多久了以来已多久了It is / has been 段时段时 since过去时过去时)It was +段时段时 since过去完成时过去完成时)过了过了5年他们才从北大毕业。年他们才从北大毕业。It was five years before they finally graduated from Beijing University. 不久，我们就要从我们学校毕业了。不久，我们就要从我们学校毕业了。It wont be long before w

6、e graduate from our school. 3. 我分开这所学校曾经很久了我分开这所学校曾经很久了.It is long since I left this school. 4.他爸爸去世有三年了 It is ( has been ) 5 years since his father died. It作替代词作替代词it的用法一、it作指示代词【完成句子】 用one，ones，it，that，those填空 (1) I cant find my watch. You havent found _？ If you want to buy a new _， I suggest you

7、buy _ made in China. (2) Weve got a big cup and two small _. (3) The weight of an elephant is much greater than _ of a tiger. itoneonethatit指代上文提过的事物/事件时，是同名同物，相当于the名词；one指代上文提过的单数可数名词是同名异物，相当于a 名词；a / an描画词one等于a / an描画词名词；复数方式用onesthat后面常有后置定语，有特指意义，替代不可数名词或单数可数名词，相当于the名词ones(4) The books on the

8、 first shelf are easier than _ on the second shelf. (5) The boy told his story and _ of the girl upstairs. those/the onesthat/the one复数名词用复数名词用those，相当于，相当于the ones。 Summary:1.One指代上文提过的单数可数名词是同名异物，相当于a 名词；a / an描画词one等于a / an描画词名词；复数方式用ones .复数名词用those，相当于the ones。 2.It指代上文提过的事物/事件时，是同名同物，相当于the名词；

9、3.That后面常有后置定语，有特指意义，替代不可数名词或单数可数名词，相当于the名词 The Parkers bought a new house but _ will need a lot of work before they can move in. 2. Weve been looking at houses but havent found _ we like yet. 3. Im moving to the countryside because the air there is much fresher than _ in the city. 易误辨析易误辨析: :it /

10、one / thatitonethatthe house that the Parkers boughta housethe air Part IIIt作方式宾语作方式宾语 S+ think + it + necessary +( for sb. ) to do sth. The chairman thought _ necessary to invite Professor Smith to speak at the meeting.(05全国)A. that B. it C. this D. himSentence patterns:B considerfind possiblefeelI

11、mportant /clause方式宾语方式宾语 2. S+ V + it + ones duty + ( for sb. ) to do sth. /clause 3. S + V + it + no good + doing sth. no use 方式宾语方式宾语I think it his duty to clean the blackboard.Sentence patterns:a ruleAn honourI like _ in the autumn when the weather is clear and bright.A. this B. that C. it D. one

12、点拨点拨: :这是这是it it作方式宾语的一种特殊用法作方式宾语的一种特殊用法. .少数动词少数动词( (如如like, love, like, love, enjoy, dislike, hate, appreciateenjoy, dislike, hate, appreciate等等) ) 后接宾语从句后接宾语从句, ,必需先由必需先由it it担任担任方式宾语方式宾语, ,再接从句再接从句. . I like (enjoy, hate) it when I would appreciate it ifSentence patterns:C方式宾语方式宾语 find possibleS

13、+ think + it + necessary +( for sb. ) to do sth. /clause feel consider importantSentence patterns:Sentence patterns:方式宾语方式宾语2. S+ find/think/feel/consider + it + ones duty + ( for sb. ) to do sth. /clause an honour经常做某事经常做某事make it a rule to do no good 3. S + find/think/feel/consider + it + + no use

14、 doing sth. 4.I like /love/enjoy/ dislike/hate/ it when5.I would appreciate it ifIt 作方式宾语句型运用作方式宾语句型运用1.我们以为学习一门外语很重要我们以为学习一门外语很重要We think it important to learn a foreign language.2.飞机使我们旅游又容易又温馨飞机使我们旅游又容易又温馨Airplanes have made it easy and comfortable for us to travel. 3.我们以为学习实际而不实际是没用的我们以为学习实际而不实际

15、是没用的 We found it useless learning a theory without practice.4.假设他能思索我的赞扬我将不胜赞赏假设他能思索我的赞扬我将不胜赞赏 I would appreciate it if you could take my complaint into account.5.我每天放学回家的路上都去看我的奶奶我每天放学回家的路上都去看我的奶奶.I make it a rule to go to see my grandma on my way home from school every day.6.站在这儿给他们作有关环境维护的演讲，我感到很

16、荣幸站在这儿给他们作有关环境维护的演讲，我感到很荣幸I feel it an honor to stand here to give a speech to you on environment protection7.我们以为维护环境是我们每个人的职责。我们以为维护环境是我们每个人的职责。We think it our duty to protect the environment.8.他厌恶他和他人交谈时有人插嘴。他厌恶他和他人交谈时有人插嘴。He hates it when he is talking to others , others interrupt. Part IIIIt作方式

17、主语作方式主语 It is necessary to be prepared for a job interview. Having the answers ready will be of great help. 2. The Foreign Minister said, “It is our hope that the two sides will work towards peace. 3. It is known to everybody that the moon travels round the earth once every month.方式主语方式主语高考真题高考真题 1.

18、“清楚显然，真的，能够，一定清楚显然，真的，能够，一定 It is clear /obvious/ true/ possible/ certain. that . 很明显，他又高又圆像一棵树。很明显，他又高又圆像一棵树。It is very clear that hes round and tall like a tree. = That hes round and tall like a tree is very clear. 2.做某事是重要的做某事是重要的/有必要的有必要的/奇异的奇异的/自然的自然的It is important / necessary/ strange/ natura

19、l.) that . 我们有必要记住这些单词我们有必要记住这些单词It is necessary that he (should) remember these words. 3.据报道据报道/以为以为/置信置信/知知/宣布宣布It is said/reported/thought/supposed/believed/known/announced) that . 听说又一颗人造卫星听说又一颗人造卫星satellite曾经被送入到轨道曾经被送入到轨道orbitIt is reported that another earth satellite has been put into orbit.

20、 4. “据建议；有命令据建议；有命令 It is suggested ( ordered /demanded/insisted/commanded. ) that . 有人建议会议被推迟有人建议会议被推迟It is suggested that the meeting ( should ) be put off. 有命令我们必需在两个小时内到。有命令我们必需在两个小时内到。It was ordered that we ( should ) arrive there in two hours. 5.很遗憾很遗憾 It is a pity ( a shame . ) that . 很遗憾这样的事

21、情竟然发生在他们班。很遗憾这样的事情竟然发生在他们班。It is a pity that such a thing should have happened in your class. 他生病了，真遗憾！他生病了，真遗憾！ It is a pity that he is ill. 6.碰巧碰巧/似乎似乎/看起来像看起来像. It happens (seems， appears) that. 他碰巧在街上遇见他的教师他碰巧在街上遇见他的教师It happened ( so happened ) that he met his teacher in the street. 看来他将在几天后回来看

22、来他将在几天后回来It seems that he will be back in a few days. 7. 做某事破费某人多长时间做某事破费某人多长时间It takes/took/will take sb some time to do sth. 成千上万的人花了很多年建筑长城成千上万的人花了很多年建筑长城It took thousands of people many years to build the Great Wall. 8. 做某事没用做某事没用It is no good (use ) doing sth. 学英语而不说英语是没用的。学英语而不说英语是没用的。It is no

23、 good learning English without speaking English. 9. It is adj (for/ of sb. ) to do sth.谢谢他这么说谢谢他这么说It is kind of you to say so. 对她来说参与聚会是非常重要的对她来说参与聚会是非常重要的It is important for her to come to the party. Part IVIt is the ability to do the job_ matters not where you come from or what you are. A. one B.

24、 that C. what D. itIt is / was + 被强调的部分被强调的部分 +that / who+句子其他成分句子其他成分强调句型强调句型高考真题高考真题It 用于强调句型用于强调句型1.一定句：一定句：It is + 被强调部分被强调部分(主主/宾宾/表表/状状)+ that .普通疑问句普通疑问句:Is/Was it被强调部分被强调部分that特殊疑问句特殊疑问句:疑问词疑问词is/was itthat1.The first clock with a face and an hour hand was made about 600 years ago.(强调划线部分强调划

25、线部分It was about 600 years ago that the first clock with a face and an hour hand was made. 2.They cleaned the classroom yesterday. (强调划线部分强调划线部分It was they that (who ) cleaned the classroom yesterday. 3.I met her father in the street. (强调划线部分强调划线部分It was in the street that I met her father. 4.终究是为什么他

26、妈妈这么生气？终究是为什么他妈妈这么生气？Why was it that made your mother so angry? Correct mistakes: 1. It is I who/ that is going to be sent there to help them. It is I who/ that am going to be sent there to help them. 2.It was her that told me about it. It was she that told me about it. 3.It is I who the teacher has

27、 punished. It is me who the teacher has punished. 2. 直到才直到才 It is not until + 被强调部分被强调部分 + that . I didnt recognize that she was a famous film staruntil she took off her dark glasses.It was not until she took off her dark glasses that I realized she was a famous film star. 我们应该尊重我们的父母，是他们抚养我们长大我们应该尊

28、重我们的父母，是他们抚养我们长大We should look up to our parents , because it is they that have brought us up. Part V在一些固定用法中调查在一些固定用法中调查forget it 别提了，忘了它吧别提了，忘了它吧It(That) depends 视情况而定视情况而定由他来决议做某事由他来决议做某事Its up to you to do sth.cant help it if假设假设我也没方法。我也没方法。正如某人所说的那样正如某人所说的那样,as someone puts it,确保确保/务必务必see to/depend on it that当谈到当谈到when it comes to(介词介词)catch it了解了解胜利；定在某时间胜利；定在某时间make it1.whenthat 2