Unit 2 I think that mooncakes are delicious！ 单元语法讲练宾语从句（含答案解析）-人教版九年级全一册

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人教版九年级全一册Unit 2 I think that mooncakes are delicious!
单元语法讲练
that, if ,weather 引导的宾语从句
一、什么是宾语从句？
宾语 ：通常跟在动词后面，表示动作的对象。
从句 ：一个句子充当了另一个句子的成分。
宾语从句 ：就是一个句子充当了动词（或介词）的宾语。
e.g.
I know him . (代词 him作动词 know的宾语)
I know that he is a good student . (整个句子 that he is a good student作动词 know的宾语)
二、宾语从句三大引导词：that, if, weather
1. that 引导的宾语从句
功能 ：由 陈述句 变来的宾语从句。that在从句中 不充当任何成分 ，也没有实际含义，只起连接作用。在 口语或非正式文体中常常可以省略 。
如何变？
陈述句：He is busy.
宾语从句：I think (that) he is busy.
例句 ：
She says (that) she will come tomorrow . (她说她明天会来。)
I believe (that) you are right . (我相信你是对的。)
We know (that) the earth goes around the sun . (我们知道地球绕着太阳转。)
特别注意 ：
当主句的谓语动词是 agree, suggest, insist, demand等时，后面的 that通常不省略。
He suggested that we should start early . (他建议我们应该早点出发。)
2. if 和 whether 引导的宾语从句
功能 ：由 一般疑问句 （可以用 yes/no 回答的疑问句）变来的宾语从句。if和 whether意思是“ 是否 ”，在从句中 不充当成分 ，但 有含义，不能省略 。
如何变？
一般疑问句：Is he busy
宾语从句：I wonder if/whether he is busy.(我想知道他是否忙。)
if 和 whether 的区别
两者在多数情况下可以互换，但在以下情况，通常 只能用 whether ：
情况 例句 说明
1. 与 or not 连用时 I don‘t know whether or not he will come.
I don’t know whether he will come or not . 不能说 if ... or not
2. 在介词后面时 We talked about whether we should do it. 介词后只能用 whether
3. 直接与不定式连用时 She doesn‘t know whether to go or stay. 只能用 whether to do
例句 (可互换) ：
Could you tell me if/whether you like this book (你能告诉我你是否喜欢这本书吗？)
I’m not sure if/whether it will rain. (我不确定是否会下雨。)
简单记 ：如果不确定用哪个，在书面语中用 whether更安全、更正式；在口语中 if非常常见。
三、两个关键点
1. 语序：陈述句语序
无论原来的疑问句是什么语序，变成宾语从句后， 一律用“引导词 + 主语 + 谓语 + ...”的陈述句语序
( ) I don‘t know where is he .
( ) I don’t know where he is . (我不知道他在哪里。)
( ) Can you tell me what’s the time
( ) Can you tell me what the time is (你能告诉我现在几点了吗？)
2. 时态：主从句时态呼应
当主句的谓语动词是 过去时态 时，从句的时态要做出相应的调整。
从句原来的时态 需调整成的时态 例句
一般现在时 → 一般过去时 He said he was tired. (他说他累了。)
现在进行时 → 过去进行时 She said she was watching TV. (她说她正在看电视。)
一般将来时 → 过去将来时 (would do) He said he would come . (他说他会来。)
现在完成时 → 过去完成时 I thought she had left . (我以为她已经走了。)
特殊情况（时态不变） ：
当从句表示的是 客观真理、自然现象、名言警句或经常性的习惯 时，时态不变，仍用一般现在时。
The teacher told us that light travels faster than sound .
(老师告诉我们光比声音传播得快。) (客观真理)
巩固练习题 (50道)
一、单项选择
1. I don't know ______ he will agree with us or not.
A. that B. if C. whether D. what
2. Could you tell me ______ we will have the meeting
A. what B. that C. when D. if
3. He said ______ he was doing his homework at that time.
A. if B. that C. whether D. what
4. I'm not sure ______ my mother will come back tonight.
A. that B. if C. what D. when
5. The teacher told us ______ the sun rises in the east.
A. if B. that C. whether D. where
6. Do you know ______ the train has left
A. that B. if C. what D. which
7. I wonder ______ you'd like to come to my party.
A. that B. if C. what D. how
8. Nobody knows ______ she was so angry yesterday.
A. why B. that C. if D. whether
9. We are talking about ______ we should take a trip to the beach.
A. if B. that C. whether D. what
10. She asked me ______ I could help her with English.
A. that B. if C. what D. which
11. I believe ______ he is honest.
A. that B. if C. whether D. what
12. He didn't tell me ______ he would be free the next day.
A. that B. if C. when D. where
13. I worry about ______ I hurt her feelings.
A. that B. if C. whether D. what
14. The problem is ______ we can get there on time.
A. that B. if C. whether D. how
15. I'm thinking about ______ to accept the job offer.
A. if B. whether C. that D. what
16. — What did your father say
— He asked me ______.
A. what was wrong with my bike
B. what wrong was with my bike
C. what wrong is with my bike
17. I found out ______ the story was true.
A. that B. if C. whether D. how
18. I don't care ______ he comes or not.
A. that B. if C. whether D. why
19. Can you make sure ______ the key is in your bag
A. that B. if C. whether D. where
20. I have no idea ______ or not they have finished the work.
A. if B. that C. whether D. what
21. He didn't say ______ he would come to my birthday party.
A. if B. that C. what D. which
22. Do you know ______ they are waiting for
A. that B. if C. whether D. who
23. I want to know ______ you are so interested in this book.
A. that B. why C. if D. whether
24. The little boy asked his mother ______ the moon was far from the earth.
A. that B. if C. what D. which
25. We discussed ______ we should close the shop.
A. if B. that C. whether D. what
26. I heard ______ your team had won the game. Congratulations!
A. that B. if C. whether D. what
27. I'm not sure ______ I can find my lost watch.
A. that B. if C. what D. which
28. He told me ______ he was born in 2008.
A. that B. if C. whether D. when
29. Please tell me ______ you need help.
A. that B. if C. what D. which
30. The question is ______ he can finish the work by himself.
A. that B. if C. whether D. how
二、用合适的连接词(that, if, whether, what, when, how, why, where)填空
31. I think ______ it is going to snow.
32. Could you tell me ______ the library is
33. I don't know ______ he hasn't called me yet.
34. She asked me ______ I had had breakfast.
35. They haven't decided ______ they will go to Beijing.
36. I wonder ______ he is always late for school.
37. Please tell me ______ you want for your birthday.
38. I'm not sure ______ my answer is correct.
39. He showed me ______ he could run very fast.
40. We are not sure about ______ we can arrive there.
三、合并句子/句型转换根据要求将两个句子合并成一个含宾语从句的复合句。
41. He is right. I believe. (用that合并)
I believe ______ he is right.
42. Will they come I don't know. (用whether合并)
I don't know ______ they ______ come.
43. Where does she live Do you know (合并成问句)
Do you know ______ she ______
44. "I'm reading a book," he said. (合并)
He said that ______ reading a book.
45. Has he returned the book I can't remember. (用if合并)
I can't remember ______ he ______ returned the book.
46. How can I get to the station Could you tell me (合并)
Could you tell me ______ I ______ get to the station
47. Why did he leave Nobody knows. (合并)
Nobody knows ______ he ______.
48. She may fail the exam. I am afraid. (合并)
I am afraid ______ she ______ fail the exam.
49. They have finished the project. The teacher told us. (合并)
The teacher told us ______ they ______ finished the project.
50. Should we tell her the truth We are not sure. (用whether合并)
We are not sure ______ we ______ tell her the truth.
答案与解析
一、单项选择
1. C whether。因为后面有 or not，必须用 whether。
2. C when。从句意“你能告诉我我们什么时候开会吗？”判断，缺少时间状语，用 when。
3. B that。从句是一个陈述句（他当时正在做作业），且不缺成分，所以用 that。
4. B if / whether。句意“我不确定我妈妈今晚是否会回来”，表示“是否”。
5. B that。从句是一个客观事实（太阳从东边升起），是陈述句，用 that。
6. B if / whether。句意“你知道火车是否已经离开了吗？”，表示“是否”。
7. B if / whether。句意“我想知道你是否想来我的派对”，表示“是否”。
8. A why。句意“没人知道她昨天为什么那么生气”，缺少原因状语，用 why。
9. C whether。因为前面是介词 about，后面必须用 whether，不能用 if。
10. B if / whether。句意“她问我是否能帮她学英语”，表示“是否”。
11. A that。从句是一个陈述句（他是诚实的），用 that，此处通常不省略。
12. A that / B if。两种都可以，但意思不同。用 that 表示“他没告诉我他第二天有空”（我知道他有空）。用 if 表示“他没告诉我他第二天是否有空”（我不知道他是否有空）。根据语境，B更常见。
13. C whether。因为前面是介词 about，必须用 whether。
14. C whether。句意“问题是我们是否能准时到那里”，表示“是否”。
15. B whether。后面是 to do 不定式，只能用 whether。
16. A what was wrong with my bike。宾语从句用陈述语序，what 是主语，所以语序是 what was wrong。
17. A that / C whether。句意“我发现那个故事是真的”或“我弄明了那个故事是否是真的”。两者皆可，但A更常见。
18. C whether。因为有 or not，优先用 whether。
19. A that。句意“你能确认钥匙在你的包里吗？”，从句是陈述事实，用 that。
20. C whether。因为有 or not，必须用 whether。
21. A if / B that。解析同第12题。
22. D who。句意“你知道他们在等谁吗？”，wait for 后缺宾语，用 who。
23. B why。句意“我想知道你为什么对这本书如此感兴趣”，缺少原因状语，用 why。
24. B if / whether。句意“小男孩问妈妈月亮是否离地球很远”，表示“是否”。
25. C whether。主句动词是 discussed（讨论），后面常接 whether 引导的从句，比 if 更正式。
26. A that。从句是陈述一个事实（你们队赢了），用 that。
27. B if / whether。句意“我不确定我是否能找到我丢失的手表”，表示“是否”。
28. A that。从句是陈述一个事实（他生于2008年），用 that。
29. B if / whether。句意“请告诉我你是否需要帮助”，表示“是否”。
30. C whether。句意“问题是他是否能自己完成工作”，表示“是否”。
二、用合适的连接词填空
31. that (我认为天要下雪了。陈述句)
32. where (你能告诉我图书馆在哪吗？缺少地点状语)
33. why (我不知道他为什么还没给我打电话。缺少原因状语)
34. if/whether (她问我是否吃了早饭。表示“是否”)
35. when/whether (他们还没决定什么时候去北京/是否去北京。根据语境，when 更合理)
36. why (我想知道他为什么总是上学迟到。缺少原因状语)
37. what (请告诉我你想要什么作为生日礼物。want 后缺宾语)
38. if/whether (我不确定我的答案是否正确。表示“是否”)
39. that (他向我展示了他能跑得很快。陈述句)
40. when/whether (我们不确定我们什么时候能到那/是否能到那。根据语境，when 更合理)
三、合并句子/句型转换
41. I believe that he is right.
42. I don't know whether they will come. (主句现在时，从句可用所需任何时态)
43. Do you know where she lives (宾语从句要用陈述语序)
44. He said that he was reading a book. (注意主过从过，I → he, am → was)
45. I can't remember if he has returned the book. (注意语序为陈述语序)
46. Could you tell me how I can get to the station (注意语序为陈述语序)
47. Nobody knows why he left. (注意语序为陈述语序)
48. I am afraid that she may fail the exam.
49. The teacher told us that they had finished the project. (注意主过从过，have → had)
50. We are not sure whether we should tell her the truth.
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