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九年级英语（外研版）衔接必备
七八年级核心考点精讲精练
专题十三 状语从句：类型与连词
【教材出处】
七下 Unit 2 Go for it!：if 引导条件状语从句
七下 Unit 3 Food matters：because 引导原因状语从句
七下 Unit 4 The art of having fun：when /while 引导时间状语从句
八上 Module 7 A famous story：while /as 引导时间状语从句
八下 Unit 2 Growing pains and gains：until 用法
八下 Unit 3 What makes a great team ：so…that /such…that 结果状语从句
八上 Unit 5 Play by the rules ：although /though 引导让步状语从句
【考点精讲】
考点 1 状语从句基础概述
状语从句由从属连词引导，在句中作状语，修饰主句动词、形容词、副词，表时间、条件、原因、让步、结果、目的、比较、地点。
从句前置：逗号隔开主从句
When I arrived, he was reading.
从句后置：无需逗号
He was reading when I arrived.
时态核心规则：主将从现
时间、条件状语从句表将来含义时，主句将来时，从句一般现在时。
考点 2 时间状语从句
表动作发生时间，连词：when, while, as, before, after, since, until, as soon as, whenever
（1）when /while/as 区分
连词 用法特点 例句
when 可接短暂动作、长动作（通用） When he came in, I was reading.（came 短暂动作）
while 仅接持续性长动作，从句多用进行时 While I was reading, he came in.
as 强调两个动作同步发生，译作 “一边…… 一边” He sang as he walked.
（2）before / after
before 在…… 之前
Please turn off the lights before you leave.
after 在…… 之后
I went to bed after I finished my homework.
补充：主从句主语一致，可简化为 before/after + doing
Before leaving, please turn off the lights.
（3）since 自从
时态固定搭配：主句现在完成时，从句一般过去时
I have lived here since I was born.
（4）until 直到
延续性动词 + until：动作持续到某时
I waited until he came back.
not…until + 短暂性动词：直到…… 才
I didn’t leave until he came back.
（5）as soon as 一…… 就……
遵循主将从现，从句一般现在时表将来
I will call you as soon as I get there.
考点 3 条件状语从句
表动作发生条件，连词：if, unless, as long as，统一适用主将从现
if 如果
If it rains tomorrow, we will stay at home.
unless 除非（= if…not，本身含否定，不叠加 not）
You will fail unless you work hard.
= You will fail if you don’t work hard.
as long as 只要
You can go out as long as you finish your homework.
考点 4 原因状语从句
表动作发生原因，连词：because, since, as, now that
连词 语气强弱 使用场景 例句
because 最强 直接原因，回答 why 提问 I was late because I missed the bus.
since 中等 已知客观事实，译为 “既然” Since you are here, let’s start.
as 最弱 附带次要原因，常放句首 As I was tired, I went to bed early.
补充规则：because 和 so 不能同句连用
拓展：now that 既然，用法同 since
Now that you have finished work, you can go home.
考点 5 结果状语从句
表主句带来的结果，固定结构：so…that /such…that
1. so…that 如此…… 以至于
① so + 形容词 / 副词 + that
She is so young that she can’t go to school.
He runs so fast that I can’t catch him.
② so + 形容词 + a/an + 单数名词 + that
so beautiful a girl = such a beautiful girl
She is so beautiful a girl that everyone likes her.
2. such…that 如此…… 以至于
① such + a/an + 形容词 + 单数名词 + that
She is such a beautiful girl that everyone likes her.
② such + 形容词 + 复数名词 + that
They are such interesting books that I read repeatedly.
③ such + 形容词 + 不可数名词 + that
It is such delicious food that all people love it.
考点 6 让步状语从句
表转折 “虽然、尽管”，连词：although, though, even though, even if
核心规则：although/though 和 but 不能同句连用
正确：Although he was tired, he kept working.
正确：He was tired, but he kept working.
错误：Although he was tired, but he kept working.
拓展：even though /even if 即使，语气更强
I will go even though it rains tomorrow.
考点 7 目的状语从句
表动作目的，连词：so that /in order that
从句特征：常搭配情态动词 can/could/may/might/will/would
She got up early so that she could catch the first bus.
句式简化：主从句主语一致，可替换为 in order to /so as to + 动词原形
She got up early in order to catch the first bus.
区分易混点：
so that（目的）：从句有情态动词
so…that（结果）：从句无情态动词
考点 8 比较状语从句
表两者对比，连词：than, as…as
than 比……（比较级）
He runs faster than I do.
as…as 和…… 一样（原级比较）
She is as tall as her sister.
否定：not as/so…as 不如……
She is not as tall as her sister.
考点 9 地点状语从句（拓展）
连词：where（在…… 地方）、wherever（无论哪里）
You can sit where you like.
Wherever you go, I will follow you.
四、高频失分点汇总
失分点 1 until 动词搭配混淆
短暂性动词（leave/start）必须用 not…until；延续性动词（wait/stay）直接用 until
I will leave until he comes back.
I won’t leave until he comes back.
失分点 2 成对连词不可连用
because 与 so 二选一
Because he was ill, so he didn’t go to school.
Because he was ill, he didn’t go to school.
although 与 but 二选一
Although he is tired, but he keeps working.
Although he is tired, he keeps working.
失分点 3 if 两种从句时态区分
if 引导条件状语从句：主将从现
I will stay home if it will rain.
I will stay home if it rains.
if 引导宾语从句：时态随实际语境
I don’t know if he will come tomorrow.
失分点 4 so…that /such…that 结构混用
It is so interesting book that everyone likes it.
It is such an interesting book that everyone likes it.
The book is so interesting that everyone likes it.
失分点 5 遗漏主将从现
时间、条件状语从句表将来，从句不用将来时
If it will rain tomorrow, we will stay home.
If it rains tomorrow, we will stay home.
失分点 6 so that（目的）与 so…that（结果）混淆
She got up early so that she caught the bus.（目的缺少情态动词）
She got up early so that she could catch the bus.（目的）
She got up so early that she caught the bus.（结果）
五、九年级衔接预览
九上 Unit 6 Live green：unless 条件从句、so that 目的从句；
九上 Unit 5 A fine balance：大量使用 so…that/such…that 结果从句；
复习重点：连词辨析、until 动词搭配、成对连词不连用、主将从现。
三级过关精练
过关一 基础达标
一、填入合适连词
I was reading a book ________ he came in.
________ I was reading, he came in.
I will wait here ________ you come back.
I didn’t leave ________ you came back.
________ it rains tomorrow, we will stay at home.
I didn’t go to school ________ I was ill.
________ he was tired, he kept working.
She is ________ young ________ she can’t go to school.
She is ________ a young girl ________ she can’t go to school.
I have lived here ________ I was born.
二、单项选择
I was watching TV ________ my mother came in.
A. while B. as C. when D. because
________ I was watching TV, my mother came in.
A. While B. When C. As D. Because
I will wait for you ________ you come back.
A. although B. as soon as C. unless D. until
I didn’t go to bed ________ I finished my homework.
A. until B. after C. before D. when
________ it rains tomorrow, we will cancel the trip.
A. Unless B. If C. Although D. Because
She didn’t go to school ________ she was ill.
A. though B. if C. because D. unless
________ he is young, he knows a lot.
A. Although B. Because C. If D. Unless
She is ________ a kind girl ________ everyone likes her.
A. so; that B. such; that C. so; as D. such; as
The book is ________ interesting ________ I read it twice.
A. such; that B. too; to C. so; that D. enough; to
I will tell him the news as soon as he ________ back.
A. comes B. will come C. came D. is coming
过关二 能力提升
三、用所给词适当形式填空
If it ________ (rain) tomorrow, we will stay at home.
I ________ (not leave) until he ________ (come) back.
She ________ (live) here since she ________ (be) born.
You will pass the exam if you ________ (study) hard.
He ________ (go) to bed after he ________ (finish) his homework.
四、单项选择
I was reading ________ he came in.
A. while B. as C. when D. because
________ I was reading, the phone rang.
A. While B. When C. As D. Because
She waited ________ her mother came back.
A. until B. as soon as C. unless D. although
I won’t go to the party ________ she invites me.
A. if B. unless C. because D. although
________ he is poor, he is very happy.
A. Because B. If C. Although D. Unless
He got up early ________ he could catch the first bus.
A. so that B. so…that C. such…that D. in order to
She is ________ a clever girl that everyone likes her.
A. so B. very C. too D. such
He runs ________ fast ________ I can’t catch up with him.
A. such; that B. so; that C. too; to D. enough; to
________ you are here, let’s start the meeting.
A. Because B. Unless C. If D. Since
I will go to the park if it ________ tomorrow.
A. doesn’t rain B. won’t rain C. isn’t raining D. didn’t rain
过关三 综合突破
五、语篇填空：填入连词或词的适当形式
I will never forget my first trip to Shanghai. I was very excited ________ 36 I arrived there. ________ 37 I was walking along the streets, I saw many tall buildings. I took many photos ________ 38 I could remember the beautiful city.
________ 39 I was tired, I kept walking because I didn’t want to miss anything. I stayed there for three days ________ 40 I had to go back home. I will never forget this trip. ________ 41 I have time, I will go there again.
I have been to Shanghai twice ________ 42 I first visited it in 2020. I like this city very much ________ 43 it is modern and beautiful.
参考答案与解析
过关一 基础达标
一、连词填空
when（came 短暂动作用 when）
While / When（reading 长动作）
until（wait 延续动词，until 表持续等待）
until（not…until 直到…… 才）
If（if 引导条件状语从句）
because（直接原因，回答 why 逻辑）
Although / Though（让步，虽然）
so; that（so + 形容词 + that）
such; that（such+a + 形容词 + 单数名词）
since（自从，现在完成时标志）
二、单项选择
C 解析：came in 短暂动作用 when；while 后接进行时长动作
A 解析：was watching 为持续性动作，while 最优
D 解析：wait until 一直等到；as soon as 语义不符
A 解析：not…until 直到写完作业才睡觉
B 解析：if 如果明天下雨，取消行程；unless 意为 “除非” 语义相反
C 解析：because 表生病是不上学的原因
A 解析：although 引导让步，虽然年纪小但懂得多
B 解析：such + a + 形容词 + 单数名词
C 解析：so + 形容词 interesting + that
A 解析：as soon as 引导时间状语从句，主将从现，从句用一般现在时 comes
过关二 能力提升
三、词形填空
rains 主将从现，if 从句一般现在时
won’t leave; comes not…until 结构，表将来用一般现在时
has lived; was since 句型，主句现完，从句一般过去时
study if 条件从句，一般现在时
went; finished after 引导过去动作，主从句均一般过去时
四、单项选择
C came 短暂动作用 when
A 长动作 watching TV 用 while
A wait until 一直等到妈妈回来
B unless = if not，除非她邀请，否则不去
C although 让步，虽然贫穷但快乐
A so that 后接句子表目的，从句有情态 could；in order to 后接动词原形
D such a clever girl 名词短语用 such
B so + 副词 fast + that
D since 既然你来了，我们开会
A if 从句一般现在时，否定用 doesn’t rain
过关三 综合突破（语篇填空）
when 当我到达上海时
While / When 走路是持续性动作
so that 拍照为了记住这座城市（目的）
Although / Though 虽然很累，但继续逛街
before 在回家之前停留三天
If 如果有时间，会再来
since 自从 2020 年初次到访，主句现完
because 喜欢上海的原因是现代又美丽

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