内容正文:
第二部分 语法专题精讲练
专题十 主从复合句
命题点3 状语从句(7年9考)
福建英语RJ
英语
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考点精讲
状语指的是在一个句子中修饰谓语、非谓语动词、定语、状语或整个句子的部分,用以说明时间、地点、原因、方式等。当状语是一个句子时,就叫作状语从句。如:
Mother was watching TV in the sitting room while Jack was reading in his study. (时间状语从句)
I am really proud of my group because we always discuss and share study secrets together.(原因状语从句)
福建近7年主要在选择填空和完形填空中考查状语从句的引导词。因此,考生应掌握初中阶段常见的状语从句的引导词。
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考向 1 引导词(7年8考)
1.引导时间状语从句的连词(7年3考)
连词 含义 用法 例句
while 当……时 具体用法和例句见本表后面的“何时用when, 何时用while的判定方法”。
when (7年2考) 当……时
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连词 含义 用法 例句
until/till 直到 until和till通常可以换用, 但是till不用于句首“not… until/ till” 意为“直到…才……”。 You may stay here until the snow stops.
before
(2021.33) 在……
之前 主句的动作发生在从句动作之前。 Did she leave a message before she left?
续表
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连词 含义 用法 例句
after 在……
之后 主句的动作发生在从句动作之后。 Molly showed me lots of beautiful pictures after I got to her home.
since 自从 从句用一般过去时,
主句常用现在完成时。 I have worked in this company since I came to this city.
续表
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连词 含义 用法 例句
as soon
as 一……
就…… 从句动作一发生, 主句的动作随即发生, 若从句用一般现在时, 主句常用一般将来时。 I will visit you as soon as I come back.
续表
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何时用when,何时用while的判定方法
(1)若主句的动词是短暂性动词,从句的动词是延续性动词,则when和
while都可用。如:
Our teacher came into the classroom when/while we were chatting.
(2)若主句和从句表示两个同时进行的持续性动作,则要用while。如:
My mother was cooking dinner while I was reading a book.
(3)若从句的动词是短暂性动词,则要用when。如:
It was raining when she arrived at the station.
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(4)若主句和从句的动作不是同时发生,而是有先后顺序,则要用when。
如:
I will study abroad when I have enough money.
(5)when可作并列连词,意为“这时(突然)”,while也可作并列连词,
意为“而,却”。如:
He was ready to leave home when the phone rang.
I like watching action movies while she likes watching comedies.
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2.引导条件状语从句的从属连词(7年2考)
连词 含义 用法 例句
if
(7年2考) 如果 若从句用一般现在时,主句常用一般将来时。 If it doesn’t rain, I will go on a picnic with my friends.
unless 除非 unless可以转化为“if… not…”结构。主从句时态与if的用法一致。 You will be late for school unless you go now.=You will be late for school if you don’t go now.
as long