内容正文:
第8讲 状语从句:主将从现与九大从句连接词辨析&过关检测
栏目一:考点梳理
① 知识导图
状语从句
├── 时间状语从句
│ ├── when / while / as(当……时)
│ ├── before / after(在……之前/之后)
│ ├── since(自从)
│ ├── until / till(直到)
│ └── as soon as(一……就……)
├── 条件状语从句
│ ├── if(如果)
│ ├── unless(除非 = if...not)
│ └── as long as(只要)
├── 原因状语从句
│ ├── because(因为)
│ ├── since / as(既然,由于)
│ └── for(补充说明原因)
├── 让步状语从句
│ ├── though / although(虽然)
│ ├── even though / even if(即使)
│ └── 注意:不能与 but 连用
├── 目的状语从句
│ ├── so that(以便)
│ └── in order that(为了)
├── 结果状语从句
│ ├── so...that...(如此……以至于)
│ ├── such...that...(如此……以至于)
│ └── so that(结果)
├── 比较状语从句
│ ├── than(比)
│ └── as...as...(和……一样)
├── 方式状语从句
│ ├── as(按照)
│ └── as if / as though(好像)
├── 地点状语从句
│ └── where / wherever(在……地方)
└── 核心原则
├── 主将从现:时间/条件从句用一般现在时表将来
└── though/although 不与 but 连用;because 不与 so 连用
② 考点清单
星级
考点
考查形式
★★★
时间状语从句中 when / while 的辨析
单项选择、语法填空
★★★
条件状语从句中 if / unless 的用法
单项选择、完形填空
★★★
主将从现原则
单项选择、语法填空
★★★
so...that... / such...that... 辨析
单项选择
★★
though / although 的用法(不与 but 连用)
单项选择、改错
★★
because 与 so 的用法(不与 so 连用)
单项选择、改错
★★
until 与 not...until 的用法
单项选择
★★
as soon as 的用法
单项选择
★
since 引导时间状语从句
单项选择
③ 核心讲解
考点1:时间状语从句(★★★)
① when / while / as 辨析
连词
从句动词特点
用法说明
when
短暂性/延续性动词均可
从句动作与主句动作同时发生或先后发生
while
必须用延续性动词
强调主句动作发生在从句动作进行过程中
as
短暂性/延续性动词均可
强调两个动作同时进行,"一边……一边……"
示例:
• When he came in, I was reading.(came 短暂动作)
• While I was reading, he came in.(was reading 延续动作)
• As she sang, she danced.(两个动作同时进行)
口诀:when 包容,while 进行,as 同步。
- when + 短暂/延续都行
- while + 必须延续(常用进行时)
- as + 两个动作同步进行
② before / after
连词
含义
示例
before
在……之前
Turn off the lights before you leave.
after
在……之后
After he finished his homework, he went out to play.
③ until / till
结构
含义
示例
肯定句 + until
直到……为止
I waited until he came back.
否定句 + until(not...until)
直到……才
I didn't go to bed until my mother came back.
核心:not...until 是中考高频考点,意为"直到……才"。
④ since
结构
说明
示例
since + 过去时间点/一般过去时从句
主句常用现在完成时
I have lived here since I moved here in 2019.
⑤ as soon as
含义
示例
一……就……
I will call you as soon as I arrive home.
考点2:条件状语从句(★★★)
① if(如果)
说明
示例
主将从现
If it rains tomorrow, we will stay at home.
主句为祈使句,从句用一般现在时
If you feel tired, have a rest.
主句含情态动词,从句用一般现在时
You can pass the exam if you work hard.
② unless(除非 = if...not)
结构
示例
unless + 从句
You won't succeed unless you try your best.
同义转换
= You won't succeed if you don't try your best.
注意:unless 本身含有否定意义,从句中不再加 not。
❌ unless you don't try → ✅ unless you try
③ as long as(只要)
• As long as you keep trying, you will make progress.
考点3:主将从现原则(★★★)
核心规则:在时间状语从句和条件状语从句中,如果主句用一般将来时(或祈使句/情态动词),从句用一般现在时表将来。
引导词
例句
when
I will tell him when he comes back.
as soon as
She will write to me as soon as she arrives.
before
He will finish the work before he leaves.
after
Will you call me after you get home?
until
I won't leave until you come back.
if
We will go to the park if it doesn't rain.
unless
He won't pass the exam unless he studies harder.
口诀:
主将从现要记牢,时间条件两从句,
when before after until,as soon as 和 if unless,
从句永远现在时,主句将来/情态/祈使。
考点4:原因状语从句(★★)
连词
语气强度
用法说明
because
最强
直接回答 why 提问,不能与 so 连用
since
中等
"既然",语气比 because 弱
as
较弱
"由于",多用于句首
for
最弱
补充说明原因,不能放在句首
示例:
• I didn't go to school because I was ill.
• Since everyone is here, let's begin.
• As it was late, we went home.
中考高频考点:because 与 so 不能同时出现在一个句子中。
❌ Because he was ill, so he didn't come.
✅ Because he was ill, he didn't come.
✅ He was ill, so he didn't come.
考点5:让步状语从句(★★)
连词
含义
示例
though / although
虽然
Though he was tired, he kept working.
even though / even if
即使
Even if it rains, I'll go.
中考高频考点:though / although 不能与 but 同时出现在一个句子中。
❌ Although he was tired, but he kept working.
✅ Although he was tired, he kept working.
✅ He was tired, but he kept working.
though / although 可与 still / yet 连用:
• Although he was tired, he still kept working.
考点6:目的状语从句(★★)
连词
含义
示例
so that
以便,为了
He got up early so that he could catch the first bus.
in order that
为了
She spoke loudly in order that everyone could hear her.
注意:so that 既可引导目的状语从句(从句中常有 can/could/may/might),也可引导结果状语从句(从句中往往没有情态动词)。
考点7:结果状语从句——so...that... / such...that...(★★★)
核心结构:
结构
公式
示例
so + 形容词/副词 + that
so + adj./adv. + that
He ran so fast that nobody could catch him.
so + 形容词 + a/an + 单数可数名词 + that
so + adj. + a/an + n. + that
He is so clever a boy that everyone likes him.
such + a/an + 形容词 + 单数可数名词 + that
such + a/an + adj. + n. + that
He is such a clever boy that everyone likes him.
such + 形容词 + 复数/不可数名词 + that
such + adj. + n. + that
They are such beautiful flowers that I want to buy them.
口诀:
so 形 so 副,such 名,单数可数两个都能用;
so 形 a/an 名,such a/an 形名;复数不可数,一律用 such。
同义转换:so...that... = too...to... = not...enough to...
He is so young that he can't go to school.
= He is too young to go to school.
= He is not old enough to go to school.
考点8:比较状语从句(★★)
连词
含义
示例
than
比
He is taller than I (am).
as...as
和……一样
She runs as fast as her sister (does).
not as/so...as
不如
This book is not as interesting as that one.
考点9:九大从句连接词总表(速记)
从句类型
常见连接词
中考考查频率
时间状语从句
when, while, as, before, after, since, until, as soon as
★★★
条件状语从句
if, unless, as long as
★★★
原因状语从句
because, since, as
★★
让步状语从句
though, although, even though, even if
★★
目的状语从句
so that, in order that
★★
结果状语从句
so...that, such...that
★★★
比较状语从句
than, as...as
★★
方式状语从句
as, as if, as though
★
地点状语从句
where, wherever
★
栏目二:易错点拨
【易错1】主将从现原则的误用
❌ 错误:I will call you as soon as I will arrive in Beijing.
✅ 正确:I will call you as soon as I arrive in Beijing.
【错因分析】as soon as 引导时间状语从句,从句用一般现在时表将来,不能用将来时。
【避坑技巧】
主将从现适用场景:
- 时间状语从句:when, before, after, until, as soon as
- 条件状语从句:if, unless, as long as
- 主句是一般将来时/祈使句/情态动词,从句用一般现在时
【易错2】though/although 与 but 连用
❌ 错误:Although he was tired, but he kept working.
✅ 正确:Although he was tired, he kept working.
✅ 正确:He was tired, but he kept working.
【错因分析】英语中 although/though 与 but 不能同时使用,二者只能选其一。
【避坑技巧】
口诀:"虽然但是不共存,because 和 so 也一样。"
- although/though + 从句,主句不用 but
- because + 从句,主句不用 so
【易错3】because 与 so 连用
❌ 错误:Because it rained heavily, so the match was canceled.
✅ 正确:Because it rained heavily, the match was canceled.
✅ 正确:It rained heavily, so the match was canceled.
【错因分析】because 和 so 不能同时出现在同一个句子中。
【避坑技巧】
与 although/but 同理:"前有 because 后无 so,前有 although 后无 but。"
【易错4】while 后接短暂性动词
❌ 错误:While he came in, I was reading.
✅ 正确:While I was reading, he came in.
✅ 正确:When he came in, I was reading.
【错因分析】while 引导的从句中动词必须是延续性动词,come 是短暂性动词,不能与 while 搭配。
【避坑技巧】
- while + 延续性动词(常用进行时)
- when + 短暂/延续均可
- 若 while 后必须用短暂动词,可用 when 代替
【易错5】unless 从句中再加否定词
❌ 错误:You won't pass the exam unless you don't study hard.
✅ 正确:You won't pass the exam unless you study hard.
【错因分析】unless 本身表示"除非",已经含有否定含义,从句不能再加 not。
【避坑技巧】
unless = if...not
- unless you study hard = if you don't study hard
- 从句中只用肯定形式
【易错6】so...that... 与 such...that... 的混淆
❌ 错误:She is so a beautiful girl that everyone likes her.
✅ 正确:She is such a beautiful girl that everyone likes her.
✅ 正确:She is so beautiful a girl that everyone likes her.
【错因分析】so 后先接形容词,再接 a/an + 名词;such 后先接 a/an,再接形容词 + 名词。
【避坑技巧】
结构
公式
so...that
so + adj. + a/an + 单数名词
such...that
such + a/an + adj. + 单数名词
【易错7】not...until 与 until 的混淆
❌ 错误:I went to bed until my mother came back.
✅ 正确:I didn't go to bed until my mother came back.
【错因分析】go to bed 是短暂性动词,不能与 until(表持续)连用,需用 not...until(直到……才)。
【避坑技巧】
- 延续性动词 + until:表示动作持续到某个时间
- I waited until he came.
- 短暂性动词用 not...until:表示"直到……才"
- I didn't leave until he came.
栏目三:过关检测
A组·基础达标
I. 用适当的连词填空。
1. ______ he was very tired, he went on working.
2. I will tell you the news as soon as he ______ (come) back.
3. ______ it rains tomorrow, we won't go to the park.
4. He is ______ young ______ he can't go to school.
5. She didn't go to bed ______ her mother came back.
II. 用所给动词的适当形式填空。
6. If it ______ (not rain) tomorrow, we will have a picnic.
7. I will write to you when I ______ (get) to London.
8. She ______ (not leave) until she finishes her homework.
9. He will call us as soon as he ______ (arrive).
10. Unless he ______ (study) harder, he will fail the exam.
B组·能力提升
I. 单项选择。
11. —When will you tell him the good news?
—I will tell him as soon as he ______ back.
A. comes B. will come C. came D. is coming
12. ______ the girl is only five years old, she can read and write very well.
A. Because B. Although C. If D. While
13. I was doing my homework ______ my mother was cooking in the kitchen.
A. when B. while C. until D. since
14. —Why didn't you go to the party last night?
—______ I had to look after my little sister.
A. Because B. Although C. So D. But
15. She is ______ lovely a girl ______ everyone in our class likes her.
A. so; that B. such; that C. so; as D. such; as
II. 单句改错(每句只有一处错误)。
16. Although he is young, but he knows a lot.
17. I won't go to bed until I will finish my homework.
18. While he came into the classroom, the teacher was reading.
C组·中考实战
I. 语法填空(原创模拟)。
阅读下面短文,在空白处填入一个适当的单词或括号内单词的正确形式。
Dear Tom,
How are you? I'm writing to tell you something about my study plan.
I know that the final exam is coming soon. My mother told me that 19.______ I wanted to get good grades, I must study harder than before. 20.______ it is difficult, I will try my best.
I will make a plan as soon as I 21.______ (get) home today. I will study for two hours every night 22.______ I can finish all my homework. I won't watch TV 23.______ I finish my homework. My mother said she would help me 24.______ I needed her.
I believe 25.______ I keep working hard, I will make great progress. I will call you when I 26.______ (be) free this weekend.
Please tell me about your study plan 27.______ you write back.
Best wishes!
Yours,
Li Hua
II. 单项选择(原创模拟,贴近中考难度)。
28. —The traffic is so heavy today.
—Yes. We'd better wait ______ the traffic lights turn green.
A. until B. after C. because D. while
29. You won't succeed ______ you put your heart into what you do.
A. if B. unless C. because D. though
30. The film was ______ moving ______ many people were deeply touched.
A. so; that B. such; that C. too; to D. enough; to
栏目四:答案与解析
【答案速查】
题号
答案
题号
答案
1
Though/Although
16
去掉 but
2
comes
17
will finish → finish
3
If
18
While → When
4
so; that
19
if
5
until
20
Though/Although
6
doesn't rain
21
get
7
get
22
so that
8
won't leave
23
until
9
arrives
24
if
10
studies
25
if
11
A
26
am
12
B
27
when
13
B
28
A
14
A
29
B
15
A
30
A
【详细解析】
A组·基础达标
1. Though/Although — 由"很累"和"继续工作"之间是让步关系,用 Though/Although。
2. comes — as soon as 引导时间状语从句,主将从现,he 为三单,用 comes。
3. If — 条件状语从句,表示"如果"。
4. so; that — young 是形容词,用 so...that... 结构。
5. until — not...until 固定句型,表示"直到……才"。
6. doesn't rain — if 条件状语从句,主将从现,从句用一般现在时,主语 it 为三单。
7. get — when 时间状语从句,主将从现。
8. won't leave — not...until 句型,主句用一般将来时否定形式。
9. arrives — as soon as 时间状语从句,主将从现,he 为三单。
10. studies — unless 条件状语从句,主将从现,he 为三单。
B组·能力提升
11. A — as soon as 引导时间状语从句,主将从现,从句用一般现在时,he 为三单,comes。
12. B — "虽然女孩只有五岁,但她读写很好",表示让步关系,用 Although。
13. B — 两个延续性动作同时进行,用 while 连接,从句用过去进行时。
14. A — 回答 why 提问,用 Because。
15. A — so + 形容词(lovely) + a/an + 名词 + that 从句。注意:such 结构应为 such a lovely girl that...,但题中 lovely 在 a 前面,所以用 so。
16. 去掉 but — although 与 but 不能连用。改为:Although he is young, he knows a lot.
17. will finish → finish — until 引导时间状语从句,主将从现,从句用一般现在时。
18. While → When — come into 是短暂性动词,不能与 while 搭配,应用 when。
C组·中考实战
19. if — 条件状语从句,"如果我想取得好成绩"。
20. Though/Although — 让步状语从句,"虽然很难"。
21. get — as soon as 时间状语从句,主将从现。
22. so that — 目的状语从句,"以便我能完成所有作业"。
23. until — not...until 固定句型。
24. if — 条件状语从句,"如果我需要她"。
25. if — 条件状语从句,"如果我坚持努力学习"。
26. am — when 时间状语从句,主将从现,主语 I 用 am。
27. when — 时间状语从句,"当你回信时"。
28. A — until 表示"直到……为止"。等交通灯变绿。
29. B — unless 意为"除非",相当于 if...not。
30. A — moving 是形容词,用 so...that... 结构。
附:本讲速记卡
状语从句·核心考点速记
🔹 主将从现口诀:
主将从现要记牢,时间条件两从句。
when, before, after, until, as soon as, if, unless,
从句永远现在时,主句将来/情态/祈使。
🔹 when / while 辨析:
when 短暂和延续都行,while 必须用延续,
进行时态是标志。
🔹 although / but 与 because / so:
虽然但是不共存,因为所以二选一。
前有 although 后无 but,前有 because 后无 so。
🔹 so...that / such...that 辨析:
so 后先形(容词)后 a/an,such 后先 a/an 后形(容词)。
复数不可数,一律用 such。
🔹 unless = if...not:
unless 本身含否定,从句不再加 not。
🔹 not...until 口诀:
短暂动词用 not...until,延续动词直接加 until。
本讲结束——完成以上练习后,建议对照解析逐题订正,将错题记录到"易错本"中,考前重点复习。
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