内容正文:
人教版九年级上册英语 · 语法知识精讲与配套练习 · Unit 3
人教版九年级上册英语
语法知识精讲与配套练习
Unit 3 Smart Learning
本单元语法焦点:宾语从句(that / if / whether 引导)
一、宾语从句基本概念
宾语从句是在主句中充当宾语的从句,放在动词、介词等后面,由 that、if、whether 等引导,用来表达完整的想法、观点或疑问。
二、that 引导宾语从句
1. 用法
that 引导陈述句转化的宾语从句,本身无意义,常可省略(尤其在 believe, think, know, say 等动词后)。
2. 例句
I think (that) good study habits help us make progress.
She knows (that) practice makes perfect.
We believe (that) everyone can learn well.
3. that 不能省略的情况
① 引导两个或以上宾语从句时,只有第一个 that 可省略:
I know (that) reading helps us and that writing improves skills.
② 介词后的宾语从句中 that 不能省略:
I think about that we must study every day.
③ it 作形式宾语时,that 不能省略:
Some students consider it difficult that they learn math well.
④ 从句主语被 this/that 修饰时,that 不省略:
I believe that this helps us remember knowledge.
三、if / whether 引导宾语从句
1. 用法
由一般疑问句转化而来,意为"是否",不可省略。
2. 例句
I don't know if/whether he will come to the party.
She wonders if/whether she can pass the exam.
Can you tell me if/whether the library is open?
3. 只能用 whether 的情况
① 与 or not 连用时:I don't know whether he will join us or not.
② 与不定式连用时:She wonders whether to change her plan.
③ 作介词的宾语时:It depends on whether you keep studying.
④ 从句位于主句之前时:Whether we need more practice, I'm not sure.
四、宾语从句三要素
1. 连接词选择
引导词
来源
是否可省略
that
陈述句转化
常可省略
if / whether
一般疑问句转化
不可省略
2. 语序:必须陈述语序
核心规则:
宾语从句永远使用 “主语 + 谓语” 的陈述语序,不能用疑问语序。
✗ I wonder can I pass the test.
✓ I wonder I can pass the test.
3. 时态呼应
规则
主句时态
从句时态
主现从"随便"
一般现在时
根据语境选择任意时态
主过从"必过"
一般过去时
用过去范畴时态
真理永"一现"
任意时态
客观真理永远用一般现在时
例句对照
主现从随便:I hear that we will have a test tomorrow. / I remember that he shared news yesterday.
主过从必过:He said that he was busy. / She told me that she took notes.
真理一现:The teacher said that the earth moves around the sun.
五、中考高频考点
①
语序改错:永远陈述语序(× where is the classroom → √ where the classroom is)。
②
时态判断:主句过去时,从句必须退回到过去时态。
③
客观真理永远一般现在时(不受主句时态影响)。
④
whether vs. if:or not / 不定式 / 介词后只能用 whether。
⑤
that 省略规则:介词后、形式宾语后、多个从句中不能省略。
配套练习题
一、单项选择(10题,每题1分,共10分)
1. I wonder ______ he will come to the meeting tomorrow.
A. if
B. that
C. what
2. Could you tell me ______ the nearest hospital is?
A. where is
B. where
C. where was
3. She said that she ______ a new book the day before.
A. buys
B. bought
C. will buy
4. I don't know ______ or not he will join us.
A. if
B. that
C. whether
5. The teacher told us that the earth ______ around the sun.
A. moved
B. moves
C. was moving
6. I believe ______ he is an honest boy.
A. if
B. whether
C. that
7. Can you tell me ______ get to the railway station?
A. how can I
B. how I can
C. how I can go
8. She wonders ______ to take part in the competition.
A. if
B. whether
C. that
9. He asked me ______ I had finished my homework.
A. that
B. if
C. what
10. I think ______ important to learn English well.
A. that
B. it
C. this
二、将下列句子合并为宾语从句(5题,每题2分,共10分)
1. He is a good student. I think ...
→ I think ______ ______ ______ a good student.
2. Will she come to the party? I don't know ...
→ I don't know ______ ______ ______ come to the party.
3. Where is the post office? Can you tell me ...
→ Can you tell me ______ ______ ______ ______?
4. He finished his homework. She said ...
→ She said ______ ______ ______ ______ his homework.
5. Is it going to rain? I wonder ...
→ I wonder ______ ______ ______ ______ to rain.
三、改错题(5题,每题2分,共10分)
找出错误并改正:
1. I wonder where is the library.
2. He asked me if was I right.
3. She said that the sun rose in the east.
4. I don't know that he will come or not.
5. Can you tell me how can I get there?
参考答案
一、单项选择
1. A("是否"用 if/whether)
2. B(陈述语序 where the nearest hospital is)
3. B(主句 said 过去时,从句用 bought)
4. C(or not 前只能用 whether)
5. B(客观真理用一般现在时 moves)
6. C(陈述句用 that 引导)
7. B(陈述语序 how I can get)
8. B(与不定式 to take 连用,用 whether)
9. B("是否"用 if)
10. B(it 作形式宾语)
二、合并宾语从句
1. that he is(陈述句用 that 引导)
2. if/whether she will(一般疑问句用 if/whether)
3. where the post office is(陈述语序)
4. that he had finished(主句过去时,从句退回到过去完成时)
5. if/whether it is going(whether + 陈述语序)
三、改错
1. is the → the is(陈述语序)
2. was I → I was(陈述语序)
3. rose → rises(客观真理用一般现在时)
4. that → whether(or not 前用 whether)
5. can I → I can(陈述语序)
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