1、資料收集于網絡，如有侵權請聯系網站刪除It句型歸納總結I .It作形式主語的句型 It + be + adj (kind , wise , careless, clever )+ of sb to do sthEg: It is wise of him to make such a decision.他做出這樣的決定是明智的。 It + be + adj(easy, safe , common , normal ) + for sb to do sth該句型中 adj 若為 important, necessary, natural, possible, strange, vital, ess

2、ential 等可改為從句，從句用 should+動詞原形。.Eg: If very dangerous for children to play with fire.It is important for us to learn English well. (= It is important that we (should) learn English well.) It + be +Ved( reported, believed, said, suggested )+ that 從句該句型中：若V-ed為reported, believed, said等常譯為 據報道“，據認為“，據說&

3、quot;。若V-ed為suggested, ordered, demanded, insisted等表示“建議命令”的詞，從句要用虛擬語氣(should)+動詞原形。Eg: It is suggested that the book (should) be revised.If said that Tom has been back from abroad. (=Tom is said to have been back from abroad.) It + be + n (a pity, a shame, a fact, good news )+ that 從句：該句型中，從句一般用(sh

4、ould) +動詞原形，表示出乎意料，常譯為“竟然”。Eg: It is a pity that such a thing ( should ) happen in your class.這種事竟然發生在你們班上，真是遺憾！ It is useless/so use/no good /pleasure* doing sth此句型中的it是形式主語，其后的動名詞短語是真正的主語，譯為做沒有用”。Eg : It s useless arguing with him further. / It' no use talking with him, because he won 'lis

5、ten.(6) It takes sb. to do sth.該句型中it是形式主語，真正的賓語是to do sth，常譯為"做.-要花費某人.”。Eg: It took thousands of people many years to build the Great Wall.H . It作形式賓語的句型1. sb find/ believe/ think/ feel/ consider/ make + it +n/adi +to do 或從句該句型中的it作形式賓語。為了記憶方便我們可稱該句型為“6123結構”。6指主句中常用的動詞：think, believe, make,

6、find,consider, feel ； 1指的是形式賓語it ； 2指的是賓補的兩種形式：形容詞或名詞；3指的是真正賓語的三種形式：不定式短語，動名詞短語或that引導的賓語從句。Eg: We think it our duty to clean our classroom every day.He felt it important learning English well.They found it difficult that they would finish their work in two days.2. 主語+ hate /dislike /love /like + it

7、 + when 從句Eg: I hate it when people speak with their mouths full.3. 主語 + appreciate + it+ if從句Eg: I really appreciate it if you could help me with my math.4. sb. depend on/count on/relv oe/see to 仇責，確保)/answer for it tha t Eg: You may rely on it that he won ' t be late.You must see to it that th

8、e doors are locked before you leave the lab.5. sb.take it for granted tha t 認為.是理所當然的Eg: I take it for granted that he will succeed.川.It引導的時間句型(1) It + is/has been+時間段 + since弓|導的時間狀語從句：該句型中從句一般用過去時態，句意為自從以來已多久了 ”Eg : It is 5 minutes since the bus left.公汽開走已有 5 分鐘了It + be (will/was) +時間段+ before引導的時

9、間狀語從句：該句型中，主句謂語動詞be若為肯定式，意為過多久才；若為否定式時，意為沒過多久就Eg : It will be long/ 3 hours before he comes back.要過三個小時他才會回來資料收集于網絡，如有侵權請聯系網站刪除It was 3 hours before he came back.過了三個小時他才回來(3)lt + be +時間點+ when引導的時間狀語從句這個句型中，it代指時間，表示時間點的詞前沒有介詞。Eg : It will be Monday when he comes back.他周一的時候回來.It was Monday when he

10、 came back.他周回來的.對比:It was on Monday that he came back .(強調句)(4) It + is (about/high) time + (that) sb did/should do sth意為“該是某人做的時候了”，about/high是用于加強語氣，that從句用should或動詞一般過去時表虛擬。亦可轉換成 It + is+ time +(for sb )to do sth.Eg : It ' (high/about) time (that) we handed in/should hand in our homework.(5)

11、 It / This / That +is+ the first(second)time + that sb has done sth:意為“這是某人第次做"，注意time前有序數詞，主句是is時，從句要用現在完成時；如果主句用was，則從句須用過去完成時 ° Eg : It is the third time that I have seen the film.That was the second time that I have been there.IV . It引導的強調句強調句形式：It + is/was +被強調的部分+ thaUwho從句Eg: It was

12、 last week that I met an old friend in the street. / It was because he was ill that he didn't come to school yesterday. (強調原因狀語從句時，只能強調由because所引導的從句.)判斷方法：將It is/was和that去掉，若該句是一個完整無缺的句子即為強調句常考考點： 強調句型中的 主謂一致Eg: It is you » rather than he, that are to blame for the accident. 插入從句的強調句型Eg: I

13、t was inthe restaurant where we had dinner last Sunday that you left your wallet . 強調句型的一般疑問句、特殊疑問句形式一般疑問句：Is / Was it + 被強調部分 + that + 句子其余部分？ Eg: Was it in 1933 that the Second World War broke out?特殊疑問句：疑問詞 + be + it + that + 句子其余部分？ Eg: When was it that he changed his mind to take part in theacti

14、vity ?強調句型用于名詞性從句，尤其注意要使用陳述語序。Eg: I don 'know when it was that he changed his mind to take part in the activity ?not until用于強調句型It is / was not until +被強調部分+that +其他部分Eg : It was not until midnight that she went back home.此句型只用until，不用till。但如果不是強調句型Till和until可通用。因為句型中It is / was not已經是否定句了，that后

15、面的從句要用肯定句。V .It其他常見用法：It looks / appears as if.看起來好像. It looks as if she is ill.It seems that 彳以乎.It seems that he will be back in a few days.It turns out that.原來是 It turned out that the beautiful woman was a thief.It occurs to/strikes sb that 突然想至 U . It occurred to me that I hadn ' t locked the door.It happened that.碰巧 It happened that he met his teacher in the street.It doesn' t matter whether/if 一無論是沒關系It doesn1 t matter whether he will come or not.It is no wonder that 難怪一He works so hard. It' s no wonder he could pass the exam.只供學習與交流How did it come about th