英语中的名词性从句引导词的选择

英语中的名词性从句引导词的选择

题目
英语中的名词性从句引导词的选择
答案
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
不可省略的连词:
1.介词后的连词
2.引导主语从句和同位语从句的连词不可省略.
That she was chosen made us very happy.
We heard the news that our team had won.
whether 与 if 均为 “是否” 的意思.但在下列情况下,whether 不能被 if 所取代:
1.whether 引导主语从句(包括从句在句首的位置)应当用whether,不用if,如:
Whether it is true remains a problem.
Whether he will come,I am not sure.
2.引导表语从句用whether,不用if,如:
The question is whether you should accept it.
3.whether可以引导从句作介词的宾语,而if 则不能,如:
I’m not interested in whether they’ll go or not.
It depends on whether we have got enough money.
4.whether可以直接跟动词不定式连用,而if 则不能,如:
I didn’t know whether to laugh or to cry.
She hasn’t decided whether to go or not.
5.引导同位语从句用whether,不用if,如:
The question whe大部分连接词引导的主语从句都可置于句末,用it充当形式主语.
It is not important who will go.
ther he’ll attend the meeting is essential.
1)由从属连词that引导的从句叫做名词性that-从句.that只起连接主句和从句的作用,在从句中不担任任何成分,本身也没有词义.
名词性that-从句在句中能充当主语、宾语、表语、同位语和形容词宾语,例如:
用 it 作形式主语的that- 从句有以下四种不同的搭配关系:
a.It + be +形容词+ that-从句
 It is necessary that…    \x09\x09有必要……
 It is important that…    \x09\x09重要的是……
 It is obvious that…     \x09\x09很明显……
b.It + be + -ed 分词+ that-从句
 It is believed that…     \x09\x09人们相信……
 It is known to all that…   \x09\x09从所周知……
 It has been decided that…   \x09\x09已决定……
c.It + be +名词+ that-从句
 It is common knowledge that…  \x09……是常识
 It is a surprise that…   \x09\x09令人惊奇的是……
 It is a fact that…     \x09\x09事实是……
d.It +不及物动词+ that-分句
 It appears that…      \x09\x09似乎……
 It happens that…      \x09\x09碰巧……
 It occurred to me that…   \x09\x09我突然想起
1)由wh-词引导的名词从句叫做名词性wh-从句.wh-词包括who,whom,whose,whoever,what,whatever,which,whichever等连接代词和where,when,how,why等连接副词.wh-从句的语法功能除了和that-从句一样外,还可充当介词宾语、宾语补语和间接宾语等,例如:
主语:How the book will sell depends on its author.
直接宾语:In one's own home one can do what one likes.
间接宾语:The club will give whoever wins a prize.
表语:My question is who will take over the president.
宾语补足语:She will name him whatever she wants to.
同位语:I have no idea when he will return.
形容词宾语:I'm not sure why she refused their invitation.
介词宾语:That depends on where we shall go.
2)wh-从句作主语也常用先行词it做形式主语,而将wh-从句置于句末,例如:
 It is not yet decided who will do that job.
1)yes-no型疑问从句
从属连词if,whether引导的名词从句是由一般疑问句或选择疑问转化而来的,因此也分别被称为yes-no型疑问句从句和选择型疑问从句,其功能和wh-从句的功能相同,例如:
主语:Whether the plan is feasible remains to be proved.
宾语:Let us know whether/if you can finish the article before Friday.
表语:The point is whether we should lend him the money.
同位语:They are investigating the question whether the man is trustworthy.
形容词宾语:She's doubtful whether we shall be able to come.
介词宾语:I worry about whether he can pass the exams.
2)选择性疑问从句
选择性疑问从句由关联词if/whether…or或whethe…or not构成,如:
Please tell me whether / if they are Swedish or Danish.
I don't care whether you like the plan or not.
举一反三
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
奥巴马演讲不用看稿子.为什么中国领导演讲要看?
想找英语初三上学期的首字母填空练习……
英语翻译
1,人们染上烟瘾,最终因吸烟使自己丧命.
最新试题
热门考点

超级试练试题库

© 2017-2019 超级试练试题库,All Rights Reserved.