春季高考英语语法专项复习——名词性从句.doc

春季高考英语语法专项复习——名词性从句
一、含有从句的句子叫做主从复合句，简称复合句。根据从句在主句中所充当的不同成分，从句分为三种：
① 名词性从句（主语从句、表语从句、宾语从句）；
② 形容词性从句（定语从句）；
③ 副词性从句（状语从句）
二、引导名词性从句的连接词可分为三类：
连词：that（无任何词意）；whether, if（“是否”）；以上在从句中不作作成分。
连接代词：what, whatever, who, whoever, whom, whose, which, whichever, whomever
连接副词：when, where, how, why, whenever, wherever, however
三、 常见考点:
1．从句的语序：
所有从句都用陈述句语序I have no idea when he will come.
2. 宾语从句的时态
当主句动词是过去时态，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，科学原理，自然现象，则从句仍用现在时态。例如：
He asked me whether I __________ (see) his pen.
The teacher said that the sun___________ (travel) around the earth.
主将从现、主祈从现、主情从现
I don’t know when he ________. When he _______, I’ll let you know.
A.comes; comes B.will come; comes C.comes; will come D.will come; will come
3. that的省略问题
1. 宾语从句的that通常可以省略多个宾语从句时, 只有第一个that可以省略。
2. 引导表语从句、主语从句的that 不可省略.
4. if / whether
只能用whether的情况:
①引导主,表从句②介词后的宾语从句 ③句中有or not ④放不定式前
5. what /that
that在引导名词性从句时，不在句子中做成分，不含疑问意义，也没有实际意义，只起连接作用，在句首时不可以省略。what 在引导名词性从句时，既起连接作用，又在从句中做主语或宾语，在任何情况下都不能省略，它有具体意义，相当于all / everything that。That he will come is certain.(that不可省略)
What he said is very important to us.
专项练习
1. – Do you know_____? - I'm not sure. Maybe he is a businessman.
A. who he is B. who is he
C. what he does D. what does he do
2. – Where does he come from? --Pardon? -- I said where _____ .
A. did he come from B. he came from
C. He comes from D. does he come from
3. I‘m not sure _ he will come back home tomorrow or not.
A. when B. what C. whether D. where
4. Our teacher told us _____.
A. is the earth round B. the earth was round
C. the earth is round D. was the earth round
5. I don’t know ___ he will come tomorrow, ______ he comes, I’ll tell you.
A. if; Whether B. whether; Whether C. if; That D. if; If
6.－I don’t know if he ___. －He will come if it ___.
A. comes; won’t rain B. will come; doesn’t rain
C. comes; doesn’t rain D. will come; won’t rain
7. I will accept the gift is none of your business.
A. If B. Whether C. What D. Which
8. Nobody knew .
A. where he comes B. where he was from
C. where he is from D. where does he come from
9. The reason is I missed the bus.
A. that B. when C. why D. what
10. she needs is to have a good rest.
A. That B. What C. Whoever D. The things what
11. The mountain is no longer ____ it used to be. 
A. which    B. that     C. what      D. as  
12. I don’t think he will come here on time, _______? 
A. won’t he       B. will he        C. does he       D. is he 
13. I find _____ important that we practice English every day.
A. it B. this C. that D. what
14.   ____ they will have a gook harvest this year is still unknown. 
A. Whether                         B. If C. Which                           D. That
15.   ____ they will have a gook harvest this year is still unknown. 
A. Whether                         B. If  C. Which                           D. That
16.   We all know the truth ____ the moon moves around the earth. 
A. that                                B. if  C. what                               D. where