托福必备基本语法详解之状语从句

2016-09-14 10:52

语法的学习是备考托福考试的基础,只有掌握了语法,才能在托福考试中取得好成绩。以下就是100留学为大家带来的托福必备基本语法详解之状语从句,希望对各位的备考有所帮助:


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Part A

Adverb clauses: Introduction

1. Whenwe were in New York, we saw several plays.

2. We sawseveral plays when we were in New York.

3. Becausehe was sleepy, he went to bed.

4. Hewent to bed because he was sleepy.


Important notes

There aresome mistakes in the following sentences:

  1. When we were in New York. We saw several plays.

  2. He went to bed. Because he was sleepy.


语法要点

状语从句简介

1. 除了用单词或短语来形容动词、形容词或副词之外,还可以用从句来形容上述词类,这类从句称为副词从句,也称状语从句。

2. 在四句例句中,when we were in New York, because he was sleepy分别是主语的状语从句部分,同时when, because是状语从句的引导词。

3. 关于标点:当状语从句位于主句之前时,就比如像第一句和第三句,通常用逗号来分开主句和状语从句。当状语从句跟在主句之后时,就比如像第二句和第四句,不用逗号来分离主句和状语从句。


重要备注

状语从句是从属子句,它们不能够单独出现。如果要运用状语从句,应该和独立分句一块儿使用。



Part B

Four categories of adverb clauses

1. TIME

after

before

when

while

as

as soonas

since

until

once

as/solong as

whenever

by thetime (that)

everytime (that)

the firsttime (that)

the lasttime (that)

the nexttime (that)


2. CAUSEAND EFFECT

because

now that

since


3. CONTRAST

eventhough

although

though

while

whereas


4. CONDITION

if

unless

only if

whetheror not

even if

in case

in theevent that


语法要点:

1. 该类词汇主要用于连接时间状语从句与主句。时间状语从句说明主句动作发生或进行的时间。状语从句由该类词汇引导,其位置通常可以放在句首或者句末。

2. 该类词语用于连接理由或原因状语从句与主句。原因状语从句说明主句动作发生或者进行的原因,其中,because语气较强,用来说明人所不知的原因,回答why提出的问题。当原因是显而易见的或者已为人们所知,就用as或者since.

3. 该组词语主要连接让步副词从句与主句。让步状语从句一般翻译为“尽管…”或者“即使…”,就是我们日常生活中用的“退一步说…”

4. 该组词汇用于连接条件状语从句与主句。在英文中,条件是指某一事件实现之后(状语从句中的动作),其他事情(主句中的动作)才能发生,通常译作“假如”。衍生出来的条件状语从句的意思有,“万一…”.



以上就是100留学为大家带来的托福必备基本语法详解之状语从句。更多托福备考内容,请继续关注100留学。


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