本试题 “— _ do you wear colorful clothes?— I want to be young and beautiful[ ]A. When; BecauseB. Why; BecauseC. Where; WhenD. How; So” 主要考查您对疑问副词
从属连词
等考点的理解。关于这些考点您可以点击下面的选项卡查看详细档案。
疑问副词的用法：
1.疑问副词是问何时、何地、如何、因何的副词，主要有when, where, how, why。
2.疑问副词用在句首。
How long have you been staying in America?
你在美国待多久了?
3.疑问副词在句中引导名词子句。
I want to know where she has gone.
我想知道她去哪里了。
4.疑问副词后接不定词构成的名词片语，在句中可以作主词、受词或主词补语。
How to solve the problem gives him a bad headache.
如何解决这个问题使他伤透脑筋。
（How to solve the problem作主词。）
I don't know how to answer the question.
我不知道如何回答这个问题。
（how to answer the question作受词。）
The patient is in urgent need the medicine, but the problem is where to get it.
这个病人急需这种药,但问题是哪里能找到。
（where to get it作主词补语。）
5.疑问副词引导的名词子句可作主词、受词或主词补语。
When we are to start the competition hasn't fixed yet.
我们什么时候开始比赛还没有定下来。
（When we are to start the competition作主词。）
She asked her husband where he had been.
她问她丈夫去哪里了。
（where he had been 作受词。）
The question is when we can finish our work.
问题是我们何时能完成我们的工作。
（when we can finish our work作主词补语。）
从属连词可分为三大类：
1、that （无词义，不做成分）
if，whether （表达是否的意义，但不做句子成分）
2、连接代词：who，whom，whose，what，which，whatever, whoever, whichever（有词义，在句子中可作主语、表语、宾语）
3、连接副词：when，where，why，how，how many，how long，how far，however，whenever，wherever （有词义，作从句的状语）
用法：
从结构上说，英语连接词分两大类：并列连词和从属连词。
并列连词连接两个或两个以上地位平等的字、词组或分句。例如：
(1) Air and water are indispensable to me.
(2) She likes going out with friends or playing outdoor games.
(3) Most workers have a good income, so they look very happy.
从属连词连接两个或两个以上的分句，形成复杂句中的从属分句。例如：
(4) He said that he did not want to go .
(5) Many things have happened since I last saw him.
(6) You may come if you want to.
从属连词用来连接各种从句。
until(till)直到，在用until表达时间状语的句子中，主句中的动词是要十分小心去选择的。
如动词是持续行动词，它要用肯定句，如：
I studied hard until 12 o'clock last night.
如果动词是瞬间截止性动词，则要用否定句，如:
He didn't go to bed until his mother came back.
由since,for,by,before, 来引导的时间状语从句。
since 引导的时间状语是动作的开始时间，如:
I have studied English since 1990.
而by引导的时间状语通常是动作的结束时间，如：
I had learned 25 English songs by the end of last term.
| 种类 | 语法作用 | 连词举例 |
| 从属连词 | 引导原因状语从句 | Because, since |
| 引导条件状语从句 | If, unless, as long as | |
| 引导目的状语从句 | So that | |
| 引导结果状语从句 | So…that | |
| 引导方式状语从句 | As, just as, as if | |
| 引导让步状语从句 | Though, although, even though, no matter what, however, no matter how, whoever, no matter who, wherever, no matter where | |
| 引导比较状语从句 | As…as, not so…as, than, less…than, the more…the more | |
| 引导名词性从句 | Who, whom, whose, which, that, when, where, why |
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