名词性从句常考点.docVIP

. . 专题九　名词性从句常考点 在复合句中起名词作用的从句叫作名词性从句。它包括主语从句、宾语从句、同位语从句和表语从句。名词性从句是英语中的一个重要语法项目，在历年的高考中几乎都涉及到。引导名词性从句的连接词可分为三类：连接词that，whether，if(不充当从句的任何成分)；连接代词what，whatever，who，whoever，whom，whose，which；连接副词when，where，how，why。 eq \a\vs4\al(1)　　 It is...和There is... It is...句型中it为形式主语，真正的主语为动名词、不定式或从句，而There is意为“有……”，有时be也可以用exist，remain等替代。 用it，there填空： ①________ is a pity that he was absent. ②________ is a fact that he has lied to you. ③________ is no wonder that he is so excited. ④________ is no need to worry about it. ⑤________ is no sense/point (in) arguing with him. ⑥________ is no doubt that he has gone. 【答案】①It　②It　③It　④There　⑤There　⑥There eq \a\vs4\al(2)　　从句作主语时的谓语动词形式 主语从句作主语相当于第三人称单数作主语，谓语动词用单数；如果由and连接两个或两个以上的主语从句作主语时，谓语动词用复数；由两个或多个连接词引导一个主语从句，谓语动词用单数。 用所给词的适当形式填空： ①That the president is coming ________(excite) all of us. ②How close parents are to their children ________(have) a strong influence on their character. ③When and where the meeting will be held __________(not decide) yet. 【答案】①excites　②has　③isnt decided/hasnt been decided eq \a\vs4\al(3)　　宾语从句的时态和语序 宾语从句中的时态要注意呼应。当主句中的谓语是现在时，从句根据自身的句子情况，而使用不同的时态。当主句中的谓语是过去时态，从句则要用相应的过去时态(如一般过去时，过去进行时，过去将来时等)；当从句表示的是客观真理、科学真理、自然现象，则从句仍用现在时态.宾语从句语序要用陈述语序(what is/was the matter除外)。 ①The photographs will show you ________． A. what does our village look like B. what our village looks like C. how does our village look like D. how our village looks like ②Someone is ringing the doorbell. Go and see ________． A. who is he B. who he is C. who is it D. who it is ③Hello，I didnt know you _____(be) in London. How long have you been here? ④I thought he ________(be) coming tomorrow. ⑤The teacher told us that light _______(travel) at a very high speed. 【答案】①B　②D　③were　④was　⑤travels eq \a\vs4\al(4)　　表语从句中的常见句型 常用的句型有： The reason is that...；It is because...；Thats why...；Thats where...。 完成下列句子： ①The reason ______ he is absent from school is ________ he is ill. ＝He is ill. Thats ________ he is absent from school. ＝He is absent from s