同义句转换专练
篇一:中文同义句子转换器
同义句转换专练
同义句转换的具体分类
1． 意思相同或相近的词或短语之间的转换。如： (1) The story happened in 1937.→The story took place in 1937.
(2) Li Lei received a letter from his aunt last week. →Li Lei heard from his aunt last week.
2.意思相反的词和短语之间的转换。
如： (1)．I think your answer is wrong. → I do not think your answer is right.
(2).In some states of America, children must stay in school until they are sixteen.
→ In some states of America, children must not leave school until they are sixteen.
3.时态之间的转换。如：
(1)His grandma died four years ago. → His grandpa has been dead for four years.
(2)Wei Hua joined the league three years ago. → Wei Hua has been a league member for three years.
4.语态之间的转换。如：
(1) He was made to work 14 hours a day. →They made him work 14 hours a day.
(2) You must clean your bedroom every day. → Your bedroom must be cleaned every day.
5.介词短语、动词（短语）之间的转换。如：
（1）Her parents will go to Hong Kong by air next month. → Her parents will fly to Hong Kong next month.
(2) Mr. Smith took a bus to work this morning. →Mr. Smith went to work by bus this morning.
6.同一词的不同词性的转换。如：
(1)The snow was very heavy last night. → It snowed heavily last night.
(2) It was easy for us to find your house. →We found your house easily.
7.动词不定式与宾语从句之间的转换。如：
（1）I do not know when we shall start tomorrow. → I do not know when to start tomorrow.
(2) I do not know what I should say at the meeting. →I do not know what to say at the meeting.
8.比较级与比较级之间的转换。如：
(1) I think the yellow orange is more delicious than the green one. →I think the green orange is less delicious than the yellow one.
(2) (2) The moon is not as big as the earth. → The earth is bigger than the moon.
9．比较级与最高级之间的转换。如：
（1）I think Chinese is the most popular subject. →I think Chinese is more popular than any other subject.
(2)Lin Tao is the tallest boy in our class. → Lin Tao is taller than the other boys in our class.
10.原级与最高级之间的转换。如：
(1) Which is your favorite season? →Which season do you like best?
11. 祈使句+and /or„与if 状语从句的转换。如：
(1) Let’s start at once , or we’ll be late for the concert → If we do not start right now , we will be late for the concert.
(2) Hurry up , and we will be able to catch the last bus. →If we hurry, we will not miss the last bus.
12.形式主语（宾语）it与真正的主语（宾语）间的转换。如：
To speak loudly in the reading-room is bad manners. →It is polite to keep quiet in the reading-room.
13.直接引语与间接引语间的转换。如：
(1)She asked me whether I had finished my homework. →“Have you finished your homework ?” she asked me.
(2) “Can you go and get some tea?” he asked me . →He asked me if I could go and get some tea.
14.时间状语从句之间的转换。如：
(1) We came home when it was six o’clock. →We did not come home until (before) it was six o’clock.
(2) You can play basketball after school. →You can not play basketball until (before)school is over.
15.简单句、并列句与复合句之间的转换。如：
（1）Lucy isn’t at home . Lily isn’t at home ,either. →Neither Lucy nor Lily is at home.
(2)The children went to the farm. The farmer needed their help. →The children went to the farm because the farmers needed their help.
(3) The words on the notice board are very small. I can not see them clearly.
→The words on the notice board are so small that I can not see them clearly.
16.too„to, enough„, so„that „(not) „等句式的相互转换。
如： (1)The sweater was too expensive for him to buy. →The sweater cost so much that he did not buy it.
(2)The beautiful car is so expensive that he can not buy it. →The beautiful car is not cheap enough for him to buy.
17.惯用句式之间的转换。如：
(1) It is time for super. →It is time to have supper.
(2) Let’s play with snowball, shall we? →What about playing with snowball?
(3)James spent an hour (in) doing his homework last night. →It took James an hour to do his homework last night.
(4) We have lessons from Monday to Friday in a week →We have lessons every day except Saturday and Sunday.
(5)Something is wrong with that machine →That machine does not work.中文同义句子转换器。
．同义句转换练习
1.We’ve lived here for two years. We _______ here two years________.
2.You’ll be late for school unless you hurry.
You’ll be late for school _____you _____hurry.
3.He has been in the army for five years. It was five years _____he _____the army.
4.Why was John late for the meeting ? Can you tell me? Can you tell me why ______ _____late for the meeting ?
5.I couldn’t finish the work in time if you didn’t help me .
I couldn’t finish the work in time ________your _________.
6.My brother joined the army three years ago. My brother has _______a soldier _______three years.
7.Tom is taller than John. John is not so _____ _____Tom.
8.Shanghai is the largest city in China. Shanghai is larger than _______ _______city in China.
9.Don’t make any noise . I can’t hear you.
_______you make _____noise , I will _____ hear you
10.Tom arrived after the film began . Tom _____arrive _____the film began.
11.He won’t finish the work before 7 o’clock. He won’t get there on time.
_____he ______finish the work before 7 o’clock , he can’t get there on time.
12.This thing is the most important thing at this moment.
This thing is ______important than anything ____at this moment.
13.He found the lost bike after Xiao Li arrived. He ______find the lost bike _____Xiao Li arrived.
14.Why not try on this new jacket? Why _____you try to _____on this new jacket?
15.He got too angry to speak. He got _______angry ________he ______speak.中文同义句子转换器。
16. “Don’t lose your key .” she said to her son. She told her son ______ _____lose ______key.
17.My little brother asked me, “Does the earth move around the sun?”
My little brother asked me ______the earth _____around the sun.
18.Think hard ,and you’ll have an idea. _______ ______think hard ,you’ll have an idea.
19. The teacher made the students copy the text. The students_______ _______ _______copy the text.
20. “Does the girl need any help?” he asked me. He asked me ______the girl ______some help.
21.Sometimes he keeps working and doesn’t have any rest. Sometimes he keeps working ______ ______ _______.
22.I got to know Peter three years ago . I _______ ______Peter ______three years ago.
23.We won’t have any lessons tomorrow because we’ll have the sports meeting.
We don’t have any lessons tomorrow _______ ________the sports meeting .
24.If you don’t work hard, you won’t pass the exam next time. ______ _____ ,______ you will fail the exam next time.
25.We didn’t have the meeting in Room 104. We had it in Room 106. We had the meeting in Room 106________ ________in Room 104.
26.Do you know how I can get to the hospital? Do you know how _____ _____to the hospital?
27.Of all the stars the sun is the nearest to the earth. The sun is _______to the earth _____the other stars.
28.The movie started fifteen minutes ago. The movie_______ _______ _________for fifteen minutes.
29.It took him quite a long time to get the work done. He ________quite a long time _______the work.
30. What do you think of the color TV set? ______do you _______the color TV set?
31．They are thinking of establishing food bank to help homeless people.
They are thinking of _____ ______a food bank to help homeless people.
32.The mother and the daughter look the same. The daughter_________ _________her mother.
33The nurse is very kind . She looks after my little brothers. The nurse who _______after my brothers _______kind.
34. Someone saw him swim in the river yesterday. He _______ _________to swim yesterday.
35.This is the most interesting book that I have ever read. I have _______read _______an interesting book before.
36. He always cuts his food into little pieces before he eats it. He always _______ ______his food before he eats it.
37.I am old enough to clean the house, cook a meal and do all the shopping instead of my parents.
I am old enough to _______the _______instead of my parents.
38.Before I left home, I didn’t eat breakfast yesterday morning. I left home __________ _________yesterday morning.
39.Who will take care of the dog while we’re away ? Who will ________ _________the dog while we’re away?
40.He was so fat that he couldn’t get through the door. He was _______fat ________get through the door.
42. Betty is afraid of speaking in front of others. Betty is ________ _______ speaking in front of others.
43. She has used up all the hot water. She has _______ _________of all the hot water.
44. David doesn’t know how he can get good grades. David doesn’t know ________ _______get good grades.
45. It took him half an hour to type that letter. He ________ half an hour_______ that letter.
46. You must look the sick pet well. You must _______good _______of the sick pet.
47. My father often walks to work. My father often goes to work __________ _________.
48. Other parts of the world aren’t the same as the united states. Other parts of the world are ______ _________the united states.
49. She isn’t as outgoing as her twin sister. Her twin sister is ________ outgoing ________her.
50. I spent 20 minutes getting to garden high school. It _______me 20 minutes ______get to garden high school.
51. Peter was very good at speaking Spanish. Peter ________ very _______in speaking Spanish.
52. What’s wrong with you? What’s _______ ________with you?
53. My father will go to Hong Kong by air next Sunday. My father will ________ _______Hong Kong next Sunday.
54. She could swim when she was 5 years old. She ________ ________to swim when she was 5 years old.
55. Tom is different from his brother, Mike. Tom isn’t the _________ ________his brother, Mike.
56.He is so young that he can’t go to school.
同义句转换的九种类型
篇二:中文同义句子转换器
同义句转换的九种类型
同义句转换题是近几年中考英语的一个常考题型，其出题形式通常是同时给出两个句子，第一句完整，第二句中设有几处空格，要求考生填入适当的词或词组，使第二句的意思与第一句意思相同。它综合考查考生的语法、词汇、短语或习惯用语和句型结构等知识，要求运用所学的词汇、语法知识和句型结构填写句子，使句子结构完整、逻辑合理、语法知识无误、意思与所给句子相同。通过对近几年的中考英语试题中同义句转换题的分析，我们发现中考英语同义句转换题主要考查以下几个方面：
一、运用同义词（组）进行转换
用同义词或同义词组对原句中的某些词或词组进行替换，注意转换后的词或词组的词形变化要与句子其他成分相适应。如：
1.That day we could see flowers here and there.
That day we could see flowers __________.
分析：答案为everywhere。everywhere与here and there都表示“到处”。
2. The teacher always takes good care of the children in the school.
The teacher always_______ ______the children well in the school.
分析：答案为looks after。take good care of与look after…well都表示“好好照顾”。 二、运用反义词（组）的否定式进行转换
即用反义词或词组的否定式表达与原句相同的意思，主要考查学生对反义词（词组）的积累和换位思维的能力。如：
1. It’s clear that this visit is different from last time.
It’s clear that this visit is not the___ ___last time.
分析：答案为same as。be different from意为“与……不同”；the same as意为“与……相同”，其否定式与be different from同义。
2. I think wealth is less important than health.
I ___ think wealth is ___ important than health.
分析：答案为don’t，more。less important的意思是“没有（不及）……重要”；more important的意思是“（比）……更重要”，该结构与not连用，则表示“不比……更重要”。
另外，有的反义词即使不与否定词连用，而只需改变句子结构也可构成同义句。如：
1.He lent some money to his friend. He friend ___ some money ___ him.
分析：答案为borrowed，from。borrow…from意为“向……借……”；lend…to意为“把……借给……”。两个结构意思相反，但若变换“借出者”与“借入者”的位置，则可转换为同义句。
三、运用不同语态进行转换
即运用主动语态与被动语态的变化来转换同义词，但此时要特别注意时态、动词一致性。如：
1. Everyone should give back his library books on time.
Library books should____ ____ ____ on time.
分析：答案为be given back。被动句中含有情态动词should，因此助动词用be。
2. It is widely accepted that more people use computers in the world today.
Computers ____ widely ___ in the world today.
分析：答案为are，used。computers是复数名词，助动词用are。
四、非延续性动词与延续性动词的相互转换
即非延续性动词与延续性动词进行转换，此时往往会涉及时态的变化。如：
1. The manager left two hours ago.
The manager _____ ____ ____ for two hours.
分析：答案为has been away。leave为非延续性动词，不能与for two hours这样的一段时间连用，而改成be away这样的延续性动词后，则可连用一段时间。
2. The film began five minutes ago.
The film has been _____ _____ five minutes.
分析：答案为on for。has been提示时态是现在完成时态，“for+时间段”表示“持续（一段时间）”，常用在含有现在完成时态的句子里。
3. Mr Li joined the Party twenty years ago.
Mr Li _____ _____ _____ the Party for twenty years.
分析：答案：has been in。短暂动词join，意为“参加、加入（组织，政党）”，不能与延续时间状语连用，与延续性时间状语连用时，将join改成be in或be a member in…。 五、运用不同引语进行转换
即将直接引语变为间接引语或将间接引语转换成直接引语。此时还要注意相关时态、人称、动词、状语等相应的变化。如：
1. “I’ve found my wallet,” he said to me.
He _________ me that he _________ _________ his wallet.
分析：答案为told，had found。此题是将直接引语转换成间接引语。
2. “Did you see her last week?” he said.
He _______ _______ I had seen her the week _______.中文同义句子转换器。
分析：答案为asked if/ whether, before。此题是将疑问句的直接引语转换成间接引语。 六、运用简单句与复合句之间的转换
即将简单句变成同义的复合句或将复合句变成同义的简单句。如：
1. We didn’t go out for a walk because it was raining.
We didn’t go out for a walk _______ _______ the rain.
分析：答案为because of。将原因状语从句because it was raining改为表示原因的介词短语because of the rain。
2. He was so excited that he couldn’t go to sleep.
He was ______ ______ ______ go to sleep.
分析：答案为too excited to。将so…that…换成too…to…结构，原句的that从句为结果状语从句，改写句中的不定式仍表结果。
3. Now I will show you how to do the work.
Now I will show you ______ ______ ______ do the work.
分析：答案为how you can。即将原句中的“疑问词+不定式”结构转换成宾语从句。
4. You should put them back after you use them.
You should put them back _____ _____ them.
分析：答案为after using。即将after引导的状语从句改写为after引导的介词短语。 七、运用并列句与复合句之间的转换
即将并列句变成同义的复合句或将复合句变成同义的并列句。如：
1. Come on, or we’ll miss the early bus.
____ we ____ hurry, we’ll miss the early bus.
分析：答案为If，don’t。if引导条件状语从句。
2. The man gave us a talk last week. Now he will give us another talk this week.
The man _____ gave us a talk last week _____ _____ us another talk this week.
分析：答案为who/ that，will give。who/ that gave us a talk last week为定语从句，修饰先行词the man。
八、运用关联连词连接或合并句子
即运用关联连词both…and…，neither…nor…，either…or…，not only…but also…等将两个简单句合并为一个简单句。此时要注意的是，both…and…连接两个主语时，谓语总是用复数，而neither…nor…，either…or…，not only…but also…连接两个主语时，谓语动词通常应与靠近的主语保持一致。如：
1. Tom can’t speak Japanese well and Jim can’t, either.
______ Tom ______ Jim can speak Japanese well.
分析：答案填Neither，nor。neither…nor…表示“……和……（两者）都不”，刚好与原句的两个否定结构的意思相吻合。
2. Alice has read the book and Peter has read it, too.
______ Alice ______ Peter have read the book.
分析：答案为Both，and。both…and…的意思是“……和……（两者）都”。
3. This store sells men’s shoes, and it also sells men’s clothes.
This store sells ______ ______ men’s shoes ______ ______ men’s clothes.
分析：答案为not only，but also。表示“不仅……而且……”之意。
九、利用某些典型句式或结构进行转换
这类典型结构如so…that…，too…to…，enough to，not…until…，so do I等。如：
1. Jim wants to go boating and his parents want to go boating, too.
Jim wants to go boating, and ______ ______ his parents.
分析：答案为so do。句意为“……他的父母也一样（一样想去）”。
2. John went to bed after he finished his homework.
John ______ go to bed ______ he finished his homework.
分析：答案为didn’t until。
同义句转换技巧
篇三:中文同义句子转换器
同义句转换技巧
同义句转换题是近几年中考英语的一个常考题型，其出题形式通常是同时给出两个句子，第一句完整，第二句中设有几处空格，要求考生填入适当的词或词组，使第二句的意思与第一句意思相同。 它综合考查考生的语法、词汇、短语或习惯用语和句型结构等知识，要求运用所学的词汇、语法知识和句型结构填写句子，使句子结构完整、逻辑合理、语法知识无误、意思与所给句子相同。它综合考查考生的语法、词汇、短语或习惯用语和句型结构等知识，要求运用所学的词汇、语法知识和句型结构填写句子，使句子结构完整、逻辑合理、语法知识无误、意思与所给句子相同。 通过对近几年的中考英语试题中同义句转换题的分析，我们发现中考英语同义句转换题主要考查以下几个方面：通过对近几年的中考英语试题中同义句转换题的分析，我们发现中考英语同义句转换题主要考查以下几个方面：
一、运用同义词（组）进行转换一、运用同义词（组）进行转换
用同义词或同义词组对原句中的某些词或词组进行替换，注意转换后的词或词组的词形变化要与句子其他成分相适应。用同义词或同义词组对原句中的某些词或词组进行替换，注意转换后的词或词组的词形变化要与句子其他成分相适应。 如：如：
1. That day we could see flowers here and there. 1. That day we could see flowers here and there.
That day we could see flowers __________. That day we could see flowers __________. 分析：答案为everywhere。分析：答案为everywhere。 everywhere与here and there都表示“到处”。 everywhere与here and there都表示“到处”。
2. The teacher always takes good care of the children in the school. 2. The teacher always takes good care of the children in the school.
The teacher always_______ ______the children well in the school. The teacher always_______ ______the children well in the school.
分析：答案为looks after。分析：答案为looks after。 take good care of与look after…well都表示“好好照顾”。 take good care of与look after…well都表示“好好照顾”。
二、运用反义词（组）的否定式进行转换二、运用反义词（组）的否定式进行转换
即用反义词或词组的否定式表达与原句相同的意思，主要考查学生对反义词（词组）的积累和换位思维的能力。即用反义词或词组的否定式表达与原句相同的意思，主要考查学生对反义词（词组）的积累和换位思维的能力。 如：如：
1. It’s clear that this visit is different from last time. 1. It’s clear that this visit is different from last time.
It’s clear that this visit is not the___ ___last time. It’s clear that this visit is not the___ ___last time.
分析：答案为same as。分析：答案为same as。 be different from意为“与……不同”；the same as意为“与……相同”，其否定式与be different from同义。 be different from意为“与……不同”；the same as意为“与……相同”，其否定式与be different from同义。
2. I think wealth is less important than health. 2. I think wealth is less important than health.
I ___ think wealth is ___ important than health. I ___ think wealth is ___ important than health.
分析：答案为don’t，more。分析：答案为don’t，more。 less important的意思是“没有
（不及）……重要”；more important的意思是“（比）……更重要”，该结构与not连用，则表示“不比……更重要”。 less important的意思是“没有（不及）……重要”；more important的意思是“（比）……更重要”，该结构与not连用，则表示“不比……更重要”。
另外，有的反义词即使不与否定词连用，而只需改变句子结构也可构成同义句。另外，有的反义词即使不与否定词连用，而只需改变句子结构也可构成同义句。 如：如： He lent some money to his friend. He lent some money to his friend.
He friend ___ some money ___ him. He friend ___ some money ___ him.
分析：答案为borrowed，from。分析：答案为borrowed，from。 borrow…from意为“向……借……”；lend…to意为“把……借给……”。 borrow…from意为“向……借……”；lend…to意为“把……借给……”。 两个结构意思相反，但若变换“借出者”与“借入者”的位置，则可转换为同义句。两个结构意思相反，但若变换“借出者”与“借入者”的位置，则可转换为同义句。
三、运用不同语态进行转换三、运用不同语态进行转换
即运用主动语态与被动语态的变化来转换同义词，但此时要特别注意时态、动词一致性。即运用主动语态与被动语态的变化来转换同义词，但此时要特别注意时态、动词一致性。 如：如：
1. Everyone should give back his library books on time. 1. Everyone should give back his library books on time.
Library books should____ ____ ____ on time. Library books should____ ____ ____ on time.
分析：答案为be given back。分析：答案为be given back。 被动句中含有情态动词should，因此助动词用be。被动句中含有情态动词should，因此助动词用be。
2. It is widely accepted that more people use computers in the world today. 2. It is widely accepted that more people use computers in the world today.
Computers ____ widely ___ in the world today. Computers ____ widely ___ in the world today.
分析：答案为are，used。分析：答案为are，used。 computers是复数名词，助动词用are。 computers是复数名词，助动词用are。
四、非延续性动词与延续性动词的相互转换四、非延续性动词与延续性动词的相互转换 即非延续性动词与延续性动词进行转换，此时往往会涉及时态的变化。即非延续性动词与延续性动词进行转换，此时往往会涉及时态的变化。 如：如：
1. The manager left two hours ago. 1. The manager left two hours ago.
The manager _____ ____ ____ for two hours. The manager _____ ____ ____ for two hours.
分析：答案为has been away。分析：答案为has been away。 leave为非延续性动词，不能与for two hours这样的一段时间连用，而改成be away这样的延续性动词后，则可连用一段时间。 leave为非延续性动词，不能与for two hours这样的一段时间连用，而改成be away这样的延续性动词后，则可连用一段时间。
2. The film began five minutes ago. 2. The film began five minutes ago.
The film has been _____ _____ five minutes. The film has been _____ _____ five minutes.
分析：答案为on for。分析：答案为on for。 has been提示时态是现在完成时态，“for+
时间段”表示“持续（一段时间）”，常用在含有现在完成时态的句子里。 has been提示时态是现在完成时态，“for+时间段”表示“持续（一段时间）”，常用在含有现在完成时态的句子里。
3. Mr Li joined the Party twenty years ago. 3. Mr Li joined the Party twenty years ago. Mr Li _____ _____ _____ the Party for twenty years. Mr Li _____ _____ _____ the Party for twenty years.
答案：has been in。答案：has been in。 短暂动词join，意为“参加、加入（组织，政党）”，不能与延续时间状语连用，与延续性时间状语连用时，将join改成be in或be a member in…。短暂动词join，意为“参加、加入（组织，政党）”，不能与延续时间状语连用，与延续性时间状语连用时，将join改成be in或be a member in…。
五、运用不同引语进行转换五、运用不同引语进行转换
即将直接引语变为间接引语或将间接引语转换成直接引语。即将直接引语变为间接引语或将间接引语转换成直接引语。 此时还要注意相关时态、人称、动词、状语等相应的变化。此时还要注意相关时态、人称、动词、状语等相应的变化。 如：如：
1. “I’ve found my wallet,” he said to me. 1. “I’ve found my wallet,” he said to me.
He _________ me that he _________ _________ his wallet. He _________ me that he _________ _________ his wallet.
分析：答案为told，had found。分析：答案为told，had found。 此题是将直接引语转换成间接引语。此题是将直接引语转换成间接引语。
2. “Did you see her last week?” he said. 2. “Did you see her last week?” he said. He _______ _______ I had seen her the week _______. He _______ _______ I had seen her the week _______.
分析：答案为asked if/ whether, before。分析：答案为asked if/ whether, before。 此题是将疑问句的直接引语转换成间接引语。此题是将疑问句的直接引语转换成间接引语。
六、运用简单句与复合句之间的转换六、运用简单句与复合句之间的转换
即将简单句变成同义的复合句或将复合句变成同义的简单句。即将简单句变成同义的复合句或将复合句变成同义的简单句。 如：如：
1. We didn’t go out for a walk because it was raining. 1. We didn’t go out for a walk because it was raining.
We didn’t go out for a walk _______ _______ the rain. We didn’t go out for a walk _______ _______ the rain.
分析：答案为because of。分析：答案为because of。 将原因状语从句because it was raining改为表示原因的介词短语because of the rain。将原因状语从句because it was raining改为表示原因的介词短语because of the rain。
2. He was so excited that he couldn’t go to sleep. 2. He was so excited that he couldn’t go to sleep.
He was ______ ______ ______ go to sleep. He was ______ ______ ______ go to sleep. 分析：答案为too excited to。分析：答案为too excited to。 将so…that…换成too…to…结构，原句的that从句为结果状语从句，改写句中的不定式仍表结果。将so…that…换成too…to…结构，原句的that从句为结果状语从句，改写句中的不定式仍表结果。
3. Now I will show you how to do the work. 3. Now I will show you how to do the work. Now I will show you ______ ______ ______ do the work. Now I will show you ______
______ ______ do the work.
分析：答案为how you can。分析：答案为how you can。 即将原句中的“疑问词+不定式”结构转换成宾语从句。即将原句中的“疑问词+不定式”结构转换成宾语从句。
4. You should put them back after you use them. 4. You should put them back after you use them.
You should put them back _____ _____ them. You should put them back _____ _____ them.
分析：答案为after using。分析：答案为after using。 即将after引导的状语从句改写为after引导的介词短语。即将after引导的状语从句改写为after引导的介词短语。
七、运用并列句与复合句之间的转换七、运用并列句与复合句之间的转换
即将并列句变成同义的复合句或将复合句变成同义的并列句。即将并列句变成同义的复合句或将复合句变成同义的并列句。 如：如：
1. Come on, or we’ll miss the early bus. 1. Come on, or we’ll miss the early bus.
____ we ____ hurry, we’ll miss the early bus. ____ we ____ hurry, we’ll miss the early bus.
分析：答案为If，don’t。分析：答案为If，don’t。 if引导条件状语从句。
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