高中英语语法课件- 状语从句
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比较状语从句和方式状语从句_状语从句
1.表示比较的状语从句
这类从句都由than或as引起:
She likes Danny better than she likes me.
她喜欢丹妮胜过喜欢我。
He can run faster than I do.
他跑得比我快。
It is not so difficult as you think.
它没有你想的那么困难。
She is not so energetic as she used to be.
她不像过去那样充满活力了。
有时许多词省略,只剩下一个词:
She is four years younger than me.
她比我小四岁。
It made him queerer than ever.
这使他变得比过去更古怪。
She was as much interested in music as ever.
她还是和过去一样对音乐有兴趣。
She is as clever as(she is) beautiful.
她聪明又美丽。
2.方式状语从句
这类从句多由as,as if,as though,like等引起: He was allowed t do as he liked.
他们允许他爱怎么干就怎么干。
It swims on the sea floor just as its ancestors did.
在海底游动,就像它的祖辈那样。
I like the freedom to plan my day exactly as I want.
我喜欢有自由完全按照我自己的意愿安排一天的活动。
She acts as though she owns the place.
状语从句
一、状语从句概述
状语从句是在句中起副词作用的主谓结构。用来修饰主句中的动词、形容词、副词等。引导状语从句的关联词是从属连词。状语从句用陈述语序,一般位于复合句的句首或句末。当从句在句首时,常用逗号和主句隔开。状语从句根据其在句中的不同作用分别表示时间、地点、原因、目的、结果、条件、让步、行为方式等,共九种。
引导状语从句的连词分类表
状语从句
时间 when
whenever
as
while
since
till
until
before
after 当…时
当…时
一边…一边;当…时
当…时
自从……
直到……
直到……
在…前
在…后 as soon as
the instant
the moment
the minute
directly
immediately
instantly 一…就
一…就
一…就
一…就
一…就
一…就
一…就 once
each time
every time
by the time
now (that)
the day/ year
no sooner …than
hardly …when 一旦…就
每次…
每次…
到…的时候
现在/当…时
在…那天/年
一…就
一…就
地点 where
anywhere 在…地方
任何地方 wherever
everywhere 在…任何地方
到处
条件 if 如果
only if 只要
if only 但愿 unless 除非
as/so long as 只要
in case 如果 providing/provided that 假如
on condition that 条件是
suppose/ supposing that 假如
原因 because 因为
as 因为
状语从句
状语从句是一种副词性从句,通常由一个从属连词或一个起连词作用的词组引导。
状语从句
1. 时间状语从句
常见的连词(组):
when, while, as, before, after, once, till, until, as soon as, now that, hardly ...when, scarcely ...when, no
sooner ...than等。
可以引导时间状语从句的副(介)词(短语)或名词短语:
directly, instantly, immediately, by the time, the moment, the second, the minute, the instant, every time,
each time, next time, the last time等。
注意点如下:
(1) when, while, as引导的时间状语从句
as表示“当……的时候”,往往和when/ while通用,但它着重强调主句与从句的动作或事情同时或几乎同时发生。when(at or during the time)既可以表示在某一点的时候,又可以表示在某一段时间内,主句与从句的动作或事情可以同时发生也可以先后发生。while强调一段时间,仅表示从句和主句的动作同时发生,并且有延续意义,该从句中的动词一般要用延续性动词,从句中常用过去进行时态或一般过去时态;当when表示a period of time时,两者可以互换。
She came up as I was cooking.(同时)
在我做饭时,她走了过来。
When we were at school, we went to the library every day.(在一段时间内)
当我们在学校时,每天都去图书馆。
高中英语语法之状语从句
时间状语从句
引导时间状语从句的连词有:when, as, while, until, not…until, before, after, since, the minute, the moment, each(every,
next, the first)time等。时间状语从句中一般用一般现在时或一般过去时。
1.when , while, as都可解释为“当```的时候”但侧重点有所不同。
1)When后既可以接短暂性动词,也可以接延续性动词 ,表示从句动作与主句动作同时发生。
When I arrived home , I had a little rest.
2)As 除了表示“当```的时候”,还可表示为“一面```一面”,“随着”
He sang as he danced.(一面```一面) You will grow wiser as
you grow older.(随着)
3)While表示“当```的时候”强调主句的动作和从句的动作同时发生,从句一般用进行时,从句动词必须是延续性动词。
While we were working, they were having a rest.
While(they were)having a discussion, they got very confused.
注意:while 有对比的含义,解释为“然而”。eg: I prefer black
tee, while he likes coffee.
2.until, not…until表示“直到`才”,在肯定句中主句常用延续性动词;在否定句中常用短暂性动词。
肯定句:I waited until midnight. 否定句:I did not leave until
midnight.
注意点:1)not until…在句首,主句用倒装 Not until you had