内容正文:
状语从句专项复习
虾米
定义:状语从句在复合句里充当状语,用于修饰主句里的动词、形容词或副词等成分
I heard the news yesterday.
I heard the news when I was having breakfast.
yesterday充当时间状语
when I was having breakfast 句子充当状语
状语从句的分类 时间状语从句
条件状语从句
原因状语从句
目的状语从句
结果状语从句
地点状语从句
方式状语从句
让步状语从句
比较状语从句
时间状语从句
引导词:
since(自从…… 以来)、not…until(直到…… 才)/ till(直到)、
when/while/as(当…… 时)、before(在…… 之前)、
after(在…… 之后)、as soon as/the moment(一…… 就)等。
例如:
When I got off the bus, I fell down.(时间点)
When (=While ) I was in China, I visited many places of interest.(时间段)
There is little rain in the north while there is much rain in the south.(对比转折)
As he walked along the street, he sang happily.(动作同时发生)
when 既可以表示时间点又表示时间段
while 表示时间段,还可表对比转折
as 强调两个动作同时发生
When I reached the station, the train had already left.
= I didn't reach the station until the train had left.
= The train had left before I reached the station.
= I reached the station after the train had left.”
when, until, before, after等的相互转换
条件状语从句
引导词:
if(如果)、unless(除非)、as long as(只要)等
时态原则
主将从现
主情从现
主祈从现
主句为一般将来时,从句用一般现在时
主句为一般将来时,从句用一般现在时
主句为一般将来时,从句用一般现在时
If I have a car, I will go there.
If I have a car, I can go there.
If I have a car, let me tell you.
原因状语从句
引导词:
because(因为)、as(由于)、since(既然)、for(因为)等,语气逐渐减弱
because 强调理由和原因,引导的从句是全句重心,一般放在主句后面,只有它能回答 why 提出的问题
用法区别
Why didn't you phone me last night?
——Because I had a lot of homework to do.
since 表明的原因比较明显,但不是根本或直接原因,引导的从句常放在主句前
Since everybody is here, Let's begin the meeting.
as 表明的原因比较明显,引导的从句多放在主句前
用法区别
As the weather was fine, we went out for a walk.
for 表明的原因更明显,是讲话人的补充说明,常放在主句后面,用逗号与主句隔开
He didn't come, for he was ill.
原因状语从句
目的状语从句
in order that (为了)
从句公式为:
主语 + can/could/shall/should/will/would/may/might + 动词原形
so that (为了)
+句子
位于句首 / 句中
只位于句中
I started early so that I might arrive in time.(句中)
I started early in order that I might arrive in time.(句中)
In order that I might arrive in time, I started early.(句首)
目的状语从句
引导词
为了
to
in order to
so as to
+动词原形
位于句首 / 句中
只位于句中
I started early to arrive in time.
结果状语从句
引导词:
so/such...that...(如此…… 以至于……)、so (that)(因此)。so 修饰形容词或副词,such 修饰名词(短语)
so +adj. / adv.+that 从句
such +a/an+名词单数+that从句
such+adj.+名词复数 / 不可数 +that从句
如此……以至于……
It is so cold that I feel sick.
It is such a cold day that I feel sick.
注意:当名词前面有many / much / few / little 修饰时,用so而不用such
结果状语从句
中文意思 句型 含义
so that 以便;为了 主句 + so that + 从句 强调做某事的目的或意图,即主句的动作是为了让从句的情况发生或实现
so…that 如此… 以至于 so +adj. / adv.+that 从句 重点是说明主句的情况导致了从句所描述的结果,强调结果的程度
例句对比
so that:I got up early so that I could catch the first bus.
我早起是为了能赶上第一班公交车,强调早起的目的是赶上公交车。
so...that:He is so tired that he can't walk anymore.
他如此累以至于再也走不动了,强调累的程度导致走不动的结果。
如何判断一个句子是目的状语从句还是结果状语从句?
判断引导词的含义 目的状语从句:常见引导词有 so that(以便;为了)、in order that(为了)、lest(以免;唯恐)、for fear that(以免;生怕)等,这些引导词本身就带有明确的目的意味
结果状语从句:常见引导词有 so...that(如此…… 以至于)、such...that(如此…… 以至于)、so that(结果是;以致)等,这些引导词侧重于表示一种结果
判断从句的特点 目的状语从句:从句中常常会有情态动词,如 can/could、may/might、will/would 等,用来表示一种可能性、意图或为了实现某种目的的能力等
结果状语从句:一般根据具体语境使用相应的时态,通常没有特定的必须使用的情态动词
判断句子的逻辑关系 目的状语从句:主从句之间是 “为了达到某种目的而采取某种行动” 的关系,即主句的动作是为了让从句的情况发生或实现
结果状语从句:主从句是 “因为某种情况而导致某种结果” 的关系,强调主句的情况导致了从句所描述的结果
地点状语从句
引导词:
Where(在…… 地方)、wherever(无论哪里)
You should put the book where you found it.
你应该把书放在你找到它的地方。
Wherever I am I will be thinking of you.
不管在哪里我都会想你的。
方式状语从句
引导词:
as(像,如同)、as if/though(好像)等
as if/though 引导的从句一般用虚拟语气,但如果情况很可能实现,也可用陈述语气
The old man runs very fast as if he were a young man.
那个老人跑得很快,仿佛他是个年轻人。(虚拟语气)
让步状语从句
引导词:
though/although(尽管、虽然),不能与 but 连用;however(然而);
even though/if(即使);疑问词 - ever = no matter + 疑问词等
Although it rained heavily, they still went out.
虽然雨下得很大,他们仍然出去了。
比较状语从句
引导词:
than(比……)、as...as(和…… 一样)、not so/as...as(不如……)等
Tom runs faster than his brother.
汤姆跑得比他兄弟快。
My room is not so/as big as his.
我的房间没有他的大。
单项选择题
I didn't believe he could drive ________ he told me.
A. once B. while C. since D. until
2.We will have no water to drink ________ we don't protect the earth.
A. until B. before C. though D. if
3.________ it rained heavily, he still arrived at school on time.
A. Although B. But C. Because D. Since
4.The film was ________ interesting ________ I wanted to see it again.
A. so; that B. such; that C. too; to D. enough; to
5.You should go over your test paper ________ you hand it in.
A. before B. though C. after D. because
D
D
A
A
A
用适当的引导词填空
I'll go to visit my aunt in England _______________ the summer holiday starts.
He didn't leave the classroom ________ he finished his homework.
________ it is raining heavily, we have to stay at home.
You can't get good grades ________ you study hard.
The little boy was ________ excited ________ he couldn't say a word.
as soon as
until
Because
unless
so
that
句型转换
1. He was so tired that he couldn't go on working.(改为简单句)
He was ________ tired ________ go on working.
2. If it rains tomorrow, we won't have a picnic.(用 unless 改写句子)
We won't have a picnic ________ it ________ rain tomorrow.
3. Because it was very cold, she put on her thick coat.(改为同义句)
It was very cold, ________ she put on her thick coat.
4. The box is so heavy that I can't carry it.(改为同义句)
The box is ________ heavy for me ________ carry.
5. As soon as he arrives in Beijing, he will call me.(对划线部分提问)
________ ________ will he call you?
too
to
unless
rains
so
too
to
How soon
翻译句子
1. 当我到家的时候,我妈妈正在做饭。
2. 除非你努力学习,否则你不会通过考试。
3. 因为下大雨,我们不得不待在家里。
4. 他跑得如此快以至于我追不上他。
5. 无论你去哪里,我都会跟着你。
When I got home, my mother was cooking.
You won't pass the exam unless you study hard.
We had to stay at home because it rained heavily.
He ran so fast that I couldn't catch up with him.
Wherever you go, I will follow you.
$$