It的用法(超全)

1、精選優(yōu)質文檔-傾情為你奉上 It的用法(超全) · It用法及其句型和固定搭配，是英語語法的重點、難點，又是近幾年考試的熱點，因此在復習中應給予足夠的重視。 · · It 句型歸納： 1 It is adj(for sbsth) to do sth 用于此句型的形容詞有： easy， hard， difficult，possible， important， impossible， necessary， good， bad， exciting， interesting， surprising 等。 如： It is necessary to change your

2、job It was very hard for them to walk such a long way in the snow 2It is n(for sbsth) to do sth 用于此句型的名詞有： pity, shame, pleasure, ones duty, ones job, fun, joy, good manners, bad manners 等。 如： It is a pity for you to have missed such a wonderful play It is bad manners for the young to take up the se

3、ats for the old 3It is adjof sbto do sth 此句型中的形容詞主要描述某人的品德、特征。 能用于該句型的形容詞有： kind, nice, wise, silly, polite, impolite, friendly, foolish, clever 等。 如： How silly it was of you to give up such a good chance！ It is friendly of the family to try to make me feel at home in their house 4It is adj（n）doing

4、sth 此句型中的形容詞和名詞常見的有： nolittle use, nomuch good, useless 等。 如： Its no use crying over spilt milk不要為打翻牛奶而哭泣。 5It takes sb一段時間to do sth 表示做某事花費某人多長時間。 如： It took us half an hour to ride to the town by the sea 6It is 及物動詞的過去分詞that 從句 此句型中常見的及物動詞的過去分詞有： said, told, known, reported, recorded, thought, bel

5、ieved, considered 等。 如： It is reported that the Russian President will visit China next week 7It 不及物動詞that 從句 此句型中不及物動詞常見的有： seem， happen， appear， matter 等。 如： It seems that there will be a heavy snow tomorrow It happened that I met my good friends in the museum yesterday 碰巧我昨天在博物館遇見了我的好朋友。 8強調句型： I

6、t is被強調部分thatwho 從句 在使用強調句型時要注意，指人時可以用 who 或 that，其它情況一律用 that。 如： It was under the bed that my brother hid the ball this morning It is Mr Bell whothat often comes and looks after the old man 9It ishas been一段時間since 從句。 如： It is has been three years since we saw each other last 10It is (high) time t

7、hat sb did sth 該句型表示某人現(xiàn)在該做某事了，從句常用過去時（虛擬語氣）說明現(xiàn)在應該做的事情。 如： Its six oclockIt is high time that we went home now It 常用的固定搭配： 1. make it （1）在口語當中相當于 succeed，表示： 成功、做到、說定、趕上、及時到達 例 Its hard to make it to the top in show business. （2）在口語中相當于 fix the date for，表示約定好時間 例 Shall we meet next week？ OK. We just

8、make it next Saturday. 2. as it is （1）相當于 in fact，in reality 表示事實上，實際情況是 例 We had planed to finish the task today，but as it is we probably wont finish it until next week. （2）相當于方式狀語從句，表示照原樣 例 Leave the table as it is. 3. as it were 相當于 as one might say，that is to say，表示也就是說，可以說，換句話說 例 He is，as it we

9、re，a modern Sherlock Holmes. 4. if it werent for/if it hadnt been for 用來引導虛擬語氣，相當于 without，or but for，表示如果不是，要不是 例 If it werent for Tom，I wouldnt be alive today. 5. thats it （1）相當于 Thats all. Thats so much. 表示至此為止，沒有別的了 例 You can have one more sweet，and thats it. （2）相當于 Thats right.表示對啦 例 I guess th

10、e key to the problem is thechoice A Thats it. 6. catch it 在口語中，相當于 be punished/scolded for doing sth. wrong. 表示因做錯事而挨罵，受責備，受批評，受懲罰 例 Well really catch it form our teacher if were late for class again. 7. have it （1）相當于 say，insist 表示說，主張，表明，硬說 例 Rumour has it that they are getting divorced. （2）相當于 ge

11、t to know something，表示了解，知道，獲悉 例 I had it from John that she was going abroad. 8. have what it takes 在口語中，相當于 be well qualified for，表示具有成功的條件 例 You can take it from me that your daughter has what it takes to be a star. 9. so it seems / appears. 10. Keep at it！（Dont give up?。?相當于 go on，表示繼續(xù)做，不放棄 例 My

12、 teacher asked me to keep at it. 11. Go it?。℅o on?。┢疵桑ё?12. Now you have done it?。╕ou have done sth. wrong.） 13. Now youll catch it！（Youll be punished.） 14. As it happened， 在口語中，相當于 its a pity that，表示真不湊巧，真遺憾 例 As it happened，they were out. 15. As it turned out， 在口語中，相當于 it was found to be in the

13、end，表示最后被證明是 例 As it turned out，his statement was false. 16. Such as it is（they are） 在口語中，相當于 although it may not be worth much，表示雖然沒有多大價值 例 You can borrow my exam notebook，such as it is. 17. Take it/things easy. 相當于 Dont worry or dont hurry. 用來勸告別人，表示不要慌，別擔心，存住氣 例 Take it easy！ He will do it well.

14、18. Take it from me. 在口語中，相當于 believe me what I say.表示請相信我的話，我敢擔保 例 You can take it from me that he will make it this time. 19. For what it is worth 在口語中，相當于 although Im not sure its of value，表示不管其價值如何 例 Here is the article I promise you，for what its worth. 20. Worth it 在口語中，相當于 useful，表示有好處，值得做 例 D

15、ont hesitate about it！ Its worth it. 21. Believe it or not.表示信不信由你 例 Believe it or not，Tom is getting married to Mary next Sunday. 22. Take it or leave it. v. 要么接受要么放棄 例 That is my last offer. You can take it or leave it. 23. It all depends/that all depends 在口語中，相當于 it hasnt been decided yet，表示那得看情況

16、，還沒有定下來 例 Are you going to the countryside for holiday？ It/That all depends. 24. Its up to sb. 在口語中，相當于 its decided by sb. 表示由決定，由負責，取決于 例 Shall we go out for dinner？ Its up to you. · · it 用法小結： It 用作實詞 表達以下概念: 指代前文提到的事物，前文中的 this, that； 替代前文中的內容； 指代一位性別不明的小孩或未知的人； 指代未指明但談話雙方都知道的那件事； 指代時間、

17、天氣、氣候、距離等自然現(xiàn)象。 · 一、it 作人稱代詞的用法 1. 指事物 作為人稱代詞，it 可以除人以外的一切事物或動物。 如： I dropped my watch and it broke. 我把手表掉在地上摔壞了。 Its hard work, but I enjoy it. 工作很辛苦，可是我樂意干。 Where is the dog? Its in the bedroom. 狗在哪?在臥室里。 2. 指人 it 指人主要用于指不性別不明的嬰兒或用于確認某人的身份。 如： Is it a boy or a girl? 是男孩還是女孩? There is a knock o

18、n the door. It must be the postman. 有人在敲門，一定是郵遞員。 【說明】在答語中，常用來指本人，如說 Its me。 3. 代替某些代詞 代詞 it 還可用于代替指示代詞 this, that 以及復合不定代詞 something, anything, nothing 等。 如： Whats this? Its a new machine. 這是什么?是一種新機器。 Nothing is wrong, is it? 沒出什么問題，是嗎? · 二、it 作非人稱代詞的用法 1. 基本用法 it 作非人稱代詞的用法，主要用于指時間、距離、價值、天氣、氣

19、候及溫度等自然現(xiàn)象。 如： Its too late to go there now. 現(xiàn)在去那兒已經太遲了。 It rained all day yesterday. 昨天下了一天的雨。 It can get very hot here. 這里有時會很熱。 2. 用于某些句型 Its time for sth. 該做某事了。 Its time to do sth. 該做某事的時候了。 Its time for sb to do sth. 某人該干某事了。 Its (about / high) time + that-從句. 某人該做某事了。 (從句謂語用過去式，有時也用should+動詞原形

20、) Its first (second) time + that-從句. 某人第幾次干某事。 (從句謂語用現(xiàn)在完成時) Its + 時間段 + since-從句. 自從有一段時間了。 Its + 時間段 + before-從句. 過多長的時間才 · 三、 it 用作形式主語 1. 基本用法 當不定式、動名詞、從句等復雜成分用作句子主語時，為保持句子平衡，通常把真正的主語放在句末，而在句首使用形式主語 it。 如： Its very important to remember this. 記住這一點很重要。 Its hard work climbing mountains. 爬山是費勁

21、的事。 Its unknown when he will come. 他什么時候來還不知道。 2. 用作形式主語的的重要句型 (1) It + be + adj. for (of) sb to do sth 某人做某事 It is hard for him to make up his mind. 他很難下定決心。 It was foolish of her to say such a thing. 她說那樣的話，真是太蠢了。 【說明】介詞 of 與 for 的區(qū)別是： of 用于指某人的性格、屬性、特征等，介詞 for 表示對象，意為對來說 。 (2) It takes sb + 時間段 +

22、 to do sth. 某人做某事花了時間 It takes years to master a new language. 要花多年的時間才能掌握一門新的語言。 【說明】此句型可以有以下多變種變體： It took me an hour to write the letter. =The letter took me an hour (to write). =I took an hour to write the letter. 我寫這封信花了一個小時 (3) It is up to sb to do sth. 該由某人做某事 Its up to you to to make the cho

23、ice. 得由你來作選擇。 (4) it look (seem, appear, happen, occur) that as if 似乎 It seemed as though he didnt recognize me. 他似乎沒認出我來。 It happened that I was out when he called. 他打電話時我碰巧不在家。 (5) If it were not for / If it hadnt been for 若不是因為 If it were not for their help, we couldnt have got over the difficult

24、ies. 要不是他們幫助，這些困難我們不克服不了的。 · 四、it 用作形式賓語 1. 基本用法 當不定式、動名詞、從句等復雜成分用作賓語且其后跟有賓語補足語時，通常會在賓語補足語前使用形式賓語，而將真正的賓語移至句末。 其基本結構為動詞+it+賓語補足語+不定式(動名詞或從句)。 如： I find it very difficult to do the job well. 我發(fā)現(xiàn)做好這件事不容易。 I think it best that you should stay here. 我認為你最好住這兒。 We think it no use complaining. 我們認為抱怨

25、是沒有用的。 2. 用作形式賓語的幾個特殊結構 (1) 動詞+ it + that-從句。 如： I like it that you came. 你來了，我很高興。 I take it (that) he will come on time. 我認為他會準時來的。 You can put it that it was arranged before. 你可以說這是以前安排的。 Rumor has it that the defence minister will soon resign. 據(jù)傳聞，國防部長不久就要辭職。 【說明】能用于此結構的動詞不多，常見的有 have, take, put

26、, like 等。 (2) 動詞 + it + when (if)-從句。 如： I dislike it when you whistle. 我不愛聽你吹口哨。 We really appreciate it when she offered to help. 她來幫忙了，我們十分感激。 Id prefer it if I didnt have to do so much work. 要是我不必做那么多工作，好就太好了。 【說明】能用于此結構的動詞不多，常見的有 enjoy, hate, love, like, dislike, appreciate, prefer 等。 (3) 動詞 +

27、prep + it + that-從句。 如： See to it that youre not late again. 注意千萬不要再遲到。 Look to it that this doesnt happen again. 注意不要再發(fā)生這種事。 You may rely on it that hell come to meet you. 你放心，他會來接你的。 I cant answer for it that he will come. 我不能保證他會來。 【說明】能用于此結構的動詞不多，常見的有 see to, look to, insist on, stick to, depend on, answer for 等。 (4) 動詞 + it + 介詞短語+ that-從句。 如： I owe i