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中考英语语法一轮复习:时间和条件状语从句&专项练习
一、时间状语从句
1. 常用引导词
• when:当…… 时候(可指点 / 段时间)
• while:当…… 期间(必须接延续性动作、进行时)
• as:一边…… 一边;随着
• before:在…… 之前
• after:在…… 之后
• since:自从…… 以来(主句常用现在完成时)
• until / till:直到……
• as soon as:一…… 就……
2. 核心考点:主将从现
主句是一般将来时 / 祈使句 / 含情态动词,从句用一般现在时表将来。
I will tell you when he comes.他一来我就告诉你。
While you are reading, please keep quiet.你读书时请保持安静。
二、条件状语从句
1. 常用引导词
• if:如果
• unless:除非 = if…not(必考)
2. 核心考点:主将从现(和时间从句完全一样)
If it rains tomorrow, we won’t go camping.如果明天下雨,我们就不去露营。
You will fail unless you study hard.= You will fail if you don’t study hard.除非你努力学习,否则你会不及格。
三、时间 & 条件状语从句 对比总结
项目
时间状语从句
条件状语从句
主句
将来时 / 祈使句 / 情态动词
将来时 / 祈使句 / 情态动词
从句
一般现在时
一般现在时
关键词
when, while, after, before, as soon as, until
if, unless
规则
主将从现
主将从现
四、中考易错点
1. when & while 区别
• when + 短暂 / 延续动词都可
• while + 只能延续动词(常进行时)
2. unless = if…not 同义句转换必考
3. 出现 since,主句常用现在完成时
I have lived here since I was five.
五、一轮复习小练习(单选)
1. I will go for a picnic if it ______ fine tomorrow.
A. is B. will be C. was
2. He didn’t go to bed ______ his mother came back.
A. if B. until C. while
3. ______ you study hard, you won’t pass the exam.
A. If B. Unless C. When
中考英语语法一轮复习
时间 & 条件状语从句 专项练习卷(考点分层版)
考点一:时间状语从句基本引导词(when/while/as/after/before/until)
一、单项选择(基础题)
1. I was reading a book ______ my mother came in.
A. when B. while C. after
2. ______ I was walking home, it began to rain.
A. When B. While C. Before
3. He learned Chinese ______ he came to China.
A. before B. after C. if
4. Please wait here ______ the rain stops.
A. until B. if C. unless
考点二:时间状语从句高频引导词(as soon as /since)
二、单项选择(中档题)
1. I will call you ______ I arrive in Beijing.
A. as soon as B. until C. while
2. We have known each other ______ we were children.
A. when B. since C. after
考点三:条件状语从句基本引导词(if /unless)
三、单项选择(基础必考题)
1. We will go to the park ______ it is sunny tomorrow.
A. if B. until C. unless
2. You will be late for school ______ you hurry up.
A. if B. unless C. when
3. He won’t pass the exam ______ he works hard.
A. if B. unless C. until
考点四:核心必考点 ——主将从现
四、用所给动词的适当形式填空(高频考点)
1. If it ______ (rain) tomorrow, we ______ (stay) at home.
2. I ______ (tell) him the news as soon as he ______ (come) back.
3. When you ______ (get) there, please ______ (call) me.
4. Don’t ______ (go) out until the rain ______ (stop).
考点五:易混辨析(when /while/unless = if…not)
五、句型转换(中考必考)
1. He didn’t go to bed until his father came back.(同义句)
He ______ go to bed ______ his father came back.
2. If you don’t study hard, you won’t succeed.(同义句)
______ you study hard, you won’t succeed.
3. When I came in, he was drawing.(用 while 改写)
______ I was coming in, he was drawing.
考点六:综合语境运用(中考真题难度)
六、单项选择(综合提升)
1. —When will you go to the park?
—______ I finish my homework.
A. Because B. As soon as C. Though
2. ______ you are free, come to see me.
A. If B. Until C. Before
3. I won’t believe you ______ I see it with my own eyes.
A. if B. unless C. when
时间 & 条件状语从句专项练习卷
答案 + 详细解析(一轮复习专用)
考点一:时间状语从句基本引导词(when/while/as/after/before/until)
一、单项选择
1. A解析:when 可接短暂动词(came in),while 只能接延续性 / 进行时。
2. B解析:while 强调 “在…… 期间”,常与进行时连用。
3. B解析:句意:他来中国之后学了中文。
4. A解析:until 直到…… 为止。
考点二:时间状语从句高频引导词(as soon as /since)
二、单项选择
1. A解析:as soon as 一…… 就……
2. B解析:since 自从…… 以来,主句常用现在完成时。
考点三:条件状语从句基本引导词(if /unless)
三、单项选择
1. A解析:if 如果,引导条件。
2. B解析:unless 除非 = if…not。
3. B解析:unless he works hard = if he doesn’t work hard。
考点四:核心必考点 ——主将从现
四、用所给动词的适当形式填空
1. rains; will stay解析:if 从句用一般现在时表将来,主句用将来时。
2. will tell; comes解析:as soon as 遵循主将从现。
3. get; call解析:从句一般现在时,主句祈使句。
4. go; stops解析:until 从句也用一般现在时表将来。
考点五:易混辨析(when /while/unless = if…not)
五、句型转换
1. didn’t; before解析:not…until = didn’t…before 直到…… 才。
2. Unless解析:Unless = If…not。
3. While解析:while 可与进行时连用,强调两个动作同时发生。
考点六:综合语境运用
六、综合单选
1. B解析:I will go to the park as soon as I finish my homework.(省略主句)
2. A解析:If you are free… 如果你有空。
3. B解析:unless I see it 除非我亲眼看见。
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