it的用法總結

1、it的用法總結:用法 英語中it的用法總結 it的用法總結高中 it的用法總結小學 篇一:it的用法歸納 ? Never be afraid of grammar ? Collect some examples; ? Watch them very carefully; ? Find out something in common; ? Try to use the rules - practise. it用法完全歸納 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

2、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 on 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

3、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、氣候及溫度等自然現象。如: Its too late to go there now. 現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

4、 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”) Its first (second) time + that-從句. 某人第幾次干某事。(從句謂語用現在完成時) Its + 時間段 + since-從句. 自從有一段時間了。 Its + 時間段 + b

5、efore-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

6、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” (from )。 (2) It takes sb + 時間段 + 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

7、 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 choice. 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

8、 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 difficulties. 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

9、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 difficult to do the job well. 我發(fā)現做好這件事不容 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

10、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, 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。(from ) 篇二:It作形式賓語用法總結 It 做形式賓語用法總結

11、當不定式(短語)、動名詞(短語)或從句在某個句子中作賓語時，為保持句子結構平衡，避免句式結構的混亂，常用it作形式賓語，而將真正的賓語放在句尾，構成“動詞，it，賓語補足語，不定式(動名詞或從句)”結構，也可稱作“6123結構”。此時it仍只起先行引導作用，本身無詞義。它可以代替三種形式:不定式、動名詞和賓語從句。 it作形式賓語時，需具備兩個條件: ? ? 足語，具備了這兩個條件，形式賓語it一定要用。 ? it代替不定式短語 think/ find/ feel/ consider/ make/ regard+ it +形容詞/名詞 + 不定式短語 如: ?I find it pleasan

12、t to work with him. (it 作形式賓語，代替不定式短語to work with him) ?They felt it difficult to finish the work in such a short time. ( it 作形式賓語，代替不定式短語to finish the work in such a short time) ?She thinks it her duty to help us. ( it 作形式賓語，代替不定式短語to help us) ?I think it my honor to be invited to speak here. ( it

13、作形式賓語，代替不定式短語to be invited to speak here) ?Tom didnt find it difficult to write letters in Chinese. ( it 作形式賓語，代替不定式短語to write letters in Chinese) ?All these noises made it impossible for me to go on with the work. ( it 作形式賓語，代替不定式短語to go on with the work) ? it代替動名詞短語( 這只限于少數句型，在多數情況下用不定式時更多一些) 如: ?

14、The professor considers it no good reading without understanding. ?Do you consider it any good trying again? ?He found it useless( no use) arguing with him. ?He thought it absolutely senseless attempting the impossible. ?I dont think it worthwhile going to such a place. ? it代替賓語從句: 如: ?We all though

15、t it a pity that the conference should have been cancelled. ?I took it for granted that they were not coming. ?Ill see to it that everything is ready in time. “it”的特殊用法常出現在以下幾種結構中。 A. 動詞，it，when / if 從句。常見于appreciate, enjoy, like, dislike, love, hate, prefer等少數動詞之后。 We would much appreciate it if yo

16、u could do us that favour. I'd prefer it if I didn't have to finish the work. B. 動詞+ it + that從句。常見于like, take, have, put等少數動詞之后(it相當于that從句的同位語)。 I take it that they will succeed sooner or later. The newspapers have it that some Japanese firms have gone bankrupt. Rumor has it that M

17、ary is getting married. I take it that you have been out. Let me come and stay. You can put it that it was arranged before. C. 動詞 + it + 介詞短語 + that從句。常見于bring it to one's attention; owe it to sb; take it for granted 等結構中。 I owe it to you that I finished my work in time. Don't take i

18、t for granted that they will support you. D. 動詞 + 介詞(短語) + it + that從句。常見于answer for, depend on, rely on, insist on, look to, see to, stick to 等結構中。 I'll see to it that everything is ready in time. You may depend on it that Tom will help you with your English. Im counting on it that you will

19、 come. E. 動詞+ it +過去分詞+從句。常見于幾個可以帶過去分詞作賓語補足語的動詞之后。 I heard it said that that factory was founded in 1995. They haven't made it known where the meeting is to take place. 易混用其他句型 英語中有一些句型不含it, 但卻易被誤用了it，常見的有以下句型: ? There is something/nothing wrong/ the matter with sb./ sth. 如:There is nothing

20、wrong /the matter with him. Hes just pretending. 他沒什么事，他只是在裝呢。 ? There is no doubt about對毫不懷疑 There is no doubt that對毫不懷疑 如:?There is no doubt about his suitability for the job. 毫無疑問，他適合這個工作。 ?There is no doubt about the fact. 關于這個事實毫無懷疑。 ?There is no doubt that he is hard to deal with. 毫無置疑他很難對付。 ?

21、 There is no need (for sb.) to do sth.沒必要 如:?There was no need for him to remain in Paris. 他沒有必要繼續(xù)留在巴黎。 ?There is no need for you to start yet. 你現在還不必動身。 ? There is no/a possibility that 沒可能/有可能 (= It is impossible/possible that ) 如:?There is a possibility that the train may be late. 可能火車要晚點。 ?There

22、 is no possibility that well see him this weekend. 我們本周末不可能見到他。 ? There is a chance that 可能 如:There is a chance that the sick child will get well. 這個生病的孩子可能會好起來的。 ? There be no/ some differences betweenand和之間沒/有區(qū)別 如:There are some differences between the two languages. 這兩種語言之間有些區(qū)別。 ? After what seem

23、ed + 時間 如: After what seemed a very long time, the wounded soldier came back to life. 在經過似乎很長的一段時間之后，那個受傷的士兵蘇醒了過來。 ? There be difficulty/ trouble (in) doing sth.干有困難 如:There was no difficulty in finding him. 找到他沒費什么事。 篇三:It用法小結 “It” 用法及其句型和固定搭配，是高中英語語法的重點、難點，高考的熱點，因此應給予充分的重視，現將it用法歸納如下: 一、It用作實詞 表達以

24、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、天氣、氣候、距離等自然現象 二、It用作形式主語 替代作主語的從句、動詞不定式、動名詞，而把真正作主語的從句、動詞不定式、動名詞置于句尾。 It 作形式主語的常見句型: 1. 代作主語的動詞不定式，其句型為 (1)It be adj.(for sb.)to do sth. 此處adj. 通常為描述事件的形容詞:easy，difficult，hard，necessary，unnecessary，possible，impossible，likel

25、y，unlikely，right，wrong，important，unimportant，legal，illegal，well-mannered，ill-mannered，polite，impolite，clear，obvious，certain，suitable，proper，fit，useful，useless，dangerous 例 It is illegal(for a teenager)to drive a car without a license. (2)It be adj. of sb. to do sth. 此處adj. 通常為描述人的形容詞:kind，unkind，nice

26、，rude，cruel，considerate，thoughtful，thoughtless，careful，careless，silly，foolish，stupid，clever，wise，crazy. 例 It's kind of you to help me with the problem . (3)It替代作主語的動名詞的常見句型 It's no good/use doing It's(well)worth doing It's(well)worth one's while doing/to do It

27、's(well)worth while doing/ to do 例 It's no use crying over spilt milk. 2. It替代作主語的從句常見句型 (1)It is + noun +從句 例 It is no secret that the president wants to have a second term at office. (2)It is adj. +clause It's surprising that(should) 竟然 It's a pity/shame that(should

28、) 竟然 例 It's important that you should apologize to her for your rudeness.(=It's of much importance that you should apologize to her for your rudeness.) (3)It verb sb. + clause= It is v-ing + clause It+surprise/delight/interest/disappoint/worry/disturb/annoy/amaze /bother/concern/frig

29、hten/please/anger sb. that 例 It worried me that she drove so fast.(= It was worrying that she drove so fast.) (4)It verb(to sb.)that= sb/sth verb to do (verb = appear，seem，come about，emerge，follow，chance，happen，occur，transpire，turn out ，work out) 例 It(so)happened/chanced that they were out.(= They happened/chanced to be out.) (5)It is v-ed that=sb/sth is to do (verb=say，report，think，believe，hope，expect，agree，accept，decide，determine，intend，plan，understand，know) 例 It is said that the couple have gotten divorced.(=The couple are said to have gotte