if与unless专项练习
if引导的条件状语从句讲解和练习(答案)
t 条件状语从句一、 条件状语从句通常由 if （如果）, unless （除非），as long as （只要）引导。
例如：If it rains tomorrow, we won ’go to the park. 如果明天下雨，我们就不去公园了。
Unless weather stops me, I go for a walk every. 我每天都会去散步，除非遇上坏天气。
Our parents will be pleased with our performance as long as we try our best.小试牛刀：1、只要我们竭尽全力，父母就会满意我们的表现。
Our parents will be pleased with our performance _____ _____ ______ we try our best.2、如果人人为保护环境做出贡献，世界将会变得更美好。
______ ______ ______ _____ _______ to protectingthe environment, the world will become much more beautiful.二、if 引导的条件状语从句（1）“if 从句+祈使句”的句子。
其实，if 作为一个连词，主句也可以是其他形式的句子。
例如：If you want to go, please let me know.If the green light isn ’t on, wait for a minute.(2)“祈使句 + and (or)+ 陈述句” 在意思上相当于一个带有条件状语从句的复合句。
注意：A. “祈使句 + and + 陈述句”可以转化为 if 引导的肯定条件状语从句，而且主语是第二人称。
B. “祈使句 + or + 陈述句”可以转化为 if 引导的否定条件状语从句，而且主语是第二人称。
if从句练习题
if从句练习题if从句练习题if从句是英语中非常重要的语法结构之一，它用来表达假设、条件和可能性。
掌握好if从句的用法和运用，对于提高英语的表达能力至关重要。
下面我将给大家提供一些if从句的练习题，希望能帮助大家更好地理解和运用这一语法结构。
练习一：完成下列句子，使用正确的if从句形式。
1. 如果我有足够的时间，我会去看电影。
2. 如果你不努力学习，你就不能通过考试。
3. 如果天气好，我们将去郊游。
4. 如果我是你，我会接受这个机会。
5. 如果我有钱，我会买一辆新车。
练习二：根据给定的情境，完成下列句子，使用正确的if从句形式。
1. 你想要改变现状吗？如果是的话，你应该努力工作。
2. 如果你不告诉我真相，我将无法帮助你。
3. 如果你不早点出发，你会迟到的。
4. 如果你不小心，你会摔倒的。
5. 如果你不去医院，你的病情可能会恶化。
练习三：根据给定的情境，完成下列句子，使用正确的if从句形式。
1. 如果你明天有空，我们可以一起去看电影。
2. 如果你不快点，我们将会错过火车。
3. 如果你不知道答案，你可以向老师请教。
4. 如果你不喜欢这个菜，我可以给你换一个。
5. 如果你迷路了，你可以问路人。
练习四：根据给定的情境，完成下列句子，使用正确的if从句形式。
1. 如果我有机会，我会去旅行。
2. 如果你不小心，你会弄丢钱包的。
3. 如果你不吃早餐，你会感到饿的。
4. 如果你不学习，你将无法通过考试。
5. 如果你不努力工作，你就不能取得成功。
练习五：根据给定的情境，完成下列句子，使用正确的if从句形式。
1. 如果你不锻炼，你的健康状况会变差。
2. 如果你不按时交作业，老师会扣分的。
3. 如果你不小心驾驶，你会出事故的。
4. 如果你不学会这个技能，你将失去这个机会。
5. 如果你不好好休息，你会感到疲劳的。
通过以上练习题，我们可以更好地理解和掌握if从句的用法。
if从句在表达假设、条件和可能性时非常常用，因此我们应该多加练习和运用，以提高我们的英语表达能力。
unless, if 练习
练习题 1. If I ________ his phone number, I will tell you. A. find B. found C. will find D. have found 2. We will go camping if it _______ tomorrow. A. Won’t rain B. didn’t rain C. doesn’t rain D. isn’t raining 3. I’m waiting for my friend. If he _______, I ______ swimming alone. A. doesn’t come; will go B. won’t come; will go C. will come; won’t go D. don’t come; will go 4. ______ you go to the supermarket at 7 p.m, you can buy a lot of cheap food. A. If B. Unless C. Whether D. When 5. I won’t get to the party on time ______ I catch the first train tomorrow morning. A. If B. Unless C. Whether D. When 6. ------Shall we go on a picnic this weekend? ------Good idea! Unless it _______. A. rains B. doesn’t rain C. rain D. won’t rain 7. -----Can I change the jacket for another one ______ it doesn’t fit me well ----- Of course. A. unless B. if C. that D. though 8. Nobody can learn maths wellhe works hard on it. A. if B unless C thought D however 9. If fishaway from water, theydie. A are taking, won’t B are taken, will C are being taken, will D take, won’t 10. Each student can ask teachers for help if heA用if或unless填空 1.he wants to see me, you can tell him to wait. 2.it snows tomorrow, we’ll have a day or two off. 3. We won’t go to his partyhe invites us. 4. She is sure to pass the examinationshe is ill. 5. I’ll take that computerI have enough money. 6.my grandma wears glasses, she can see better. 7. I won’t buy that backpackit costs less than $20 8.I’m tired; I’ll have a rest for tea. 9. You won’t get paid for time offyou have a doctor’s note. 10. you will get a toothacheyou do clean your teeth regularly. B 用所给单词的适当形式填空 1. If he(get) a low mark in the test, he(study) harder. 2. If you(swim) every day this summer, you(be) very healthy. 3. If he(not hurry), he(not see) the beginning of the match. 4. You can’t go out unless you(finish) your homework. 5. Unless I save my money carefully, I(not be) able to buy a football. 6. If it(not rain) tomorrow, we(go) to the park. 7. If he(return) to the school, I(let) you know. 8. Hesmoking unless he(have) enough money. 9. They can remember it better if someone (give) them some advice about it. 10. The man(set off) if he(buy) the air ticket. 二解释句子 1. you will feel worse unless you take more rest.2. you will be late for work if you don’t hurry up.3. no one is going to help you unless you change your mind.。
if和unless区别和练习
Chapter 1 语法If 和unless引导的条件状语从句我们用if引导的条件状语从句来讨论可能的条件以及该条件成立时可能的结果.一. 学习if引导的条件状语从句的用法，我们可先从如下的口诀入手:If条件句不一般，几个要点记心间；条件句，放在前，逗号要句中间条件句表可能，主句多用将来时；条件句表事实，主句常用现在时。
We can walk there if we can't find a bus。
如果我们找不到公车,也能走路去那里主句条件状语从句If it rains tomorrow, we will not go to the zoo。
如果明天下雨,我们就不去动物园条件状语从句主句What will you go if you find someone in danger？主句条件状语从句如果你发现某人有危险，你会怎么做？If 条件句有不同的类型，简述如下：1。
用if条件句表达客观真理或普通现象If条件句用于表达客观真理或普通现象时，主，从句时态均用一般现在时，如：Eg. If you freeze water，it turns into ice.A fish dies if you take it out of water。
2. 用if 条件句表示将来可能发生的事情在表示将来可能发生的事情的if条件句中，主句用一般将来时,而if从句用一般现在时表示将来的时间，即主将从现Eg。
If I like the house，I will buy it. 如果我喜欢这房子，我就会把它买下I will tell her if I see her. 如果我见到她,我就会告诉她。
主句中的will也可以用情态动词can，may 或might等代替.如:Eg. If they are friendly，I might invite them to the party。
如果他们很友善，我可能会请他们去参加聚会If we hurry now，we can stop for coffee later. 如果我们现在抓紧时间,就可以稍后去喝咖啡注意：在条件句中，主句部分只能使用动词will的一般将来时,不能使用be going to的结构二. Unless 的条件句表示在特定条件下，才决定做或不做一件事，中文用的连接词一般是“除非”和“否则”。
if条件状语从句练习题及答案
if条件状语从句练习题及答案If条件状语从句练习题及答案条件状语从句是英语中常用的一种从句结构，用来表示某个条件成立时，另一个事件或结果也将发生。
掌握条件状语从句的用法对于提高英语口语和写作能力非常重要。
下面将给出一些条件状语从句的练习题及答案，帮助读者更好地理解和掌握这一语法知识。
练习题一：1. If it rains tomorrow, ___________.2. She will be late for work if ___________.3. If I see him, ___________.4. If you don't study hard, ___________.5. If I were you, ___________.练习题二：1. If you ___________ to the party, please bring a gift.2. If I ___________ you, I would apologize.3. If she ___________ the exam, she will be very happy.4. If it ___________ tomorrow, we will go hiking.5. If he ___________ the bus, he will be late for the meeting.答案一：1. we will stay at home.2. she misses the bus.3. I will say hello.4. you will fail the test.5. I would study harder.答案二：1. come2. were3. passes4. doesn't rain5. misses通过以上练习题，我们可以发现条件状语从句的用法和特点。
首先，在条件状语从句中，通常使用的连词有if、unless、provided that等。
寒假作业05If和Unless条件状语从句-2024年八年级英语寒假培优练(牛津深圳版)
限时练习：40min 完成时间：月日天气：作业05 If和Unless引导的条件状语从句【语法概述】在复合句中作条件状语的句子叫____条件状语从句__.条件状语从句常用__if/ unless_来引导。
【句子结构】If 引导的条件状语从句位置灵活，可直接放在主句后面，也可以放在句首。
放句首时，从句后面要用逗号和主句隔开。
If it rains tomorrow, we will not go to the zoo. 如果明天下雨，我们就不去动物园。
条件状语从句主句What will you go if you find someone in danger? 如果你发现某人有危险，你会怎么做？主句条件状语从句【具体用法】If 引导的真实条件状语从句类型时态例句用if条件句表达客观真理或普通现象主现从现 A fish dies if you take it out of water.用if 条件句表示将来可能发生的事情主将从现I will tell her if I see her.主祈从现If the light is red, wait for a minute.主情从现If we hurry now, we can stop for coffee later.△unless=if…not除非，如果不unless连接条件状语从句，在用unless表示将来情况时，主句用将来时，从句要用一般时表将来，此种用法适用于条件状语从句和时间状语从句。
小试牛刀：除非他被邀请否则他不会来=如果他不被邀请的话他将不会来。
He won't e unless he is invited.= He won’t e if he isn’t invited.记忆口诀：条件句不一般，几个要点记心间；条件句，放在前，逗号要放句中间。
条件句表可能，主句多用将来时；条件句表事实，主句常用现在时。
一、单项选择1．Learning to write is learning to think. You don’t know things clearly ________ you can write them down.A．unless B．if C．when D．after【答案】A【详解】句意：学习写作就是学习思考。
条件状语从句练习题及答案
条件状语从句练习题及答案1. 如果你明天有空，我们一起去看电影吧。
- If you are free tomorrow, we will go to see a movie together.2. 只有当你完成作业后，你才能玩游戏。
- You can play games only after you finish your homework.3. 除非我们早些出发，否则我们将错过火车。
- We will miss the train unless we leave early.4. 我会帮你，如果你需要的话。
- I will help you if you need it.5. 他不会来参加聚会，除非他被邀请。
- He won't come to the party unless he is invited.6. 只要我们努力工作，我们就能实现我们的目标。
- We can achieve our goals as long as we work hard.7. 我会告诉你这个秘密，如果你保证不告诉别人。
- I will tell you this secret if you promise not to tell anyone else.8. 她不会原谅他，如果她知道他撒谎了。
- She won't forgive him if she knew he lied.答案1. If you are free tomorrow, we will go to see a movie together.- 正确答案：If you are free tomorrow, we will go to see a movie together.2. You can play games only after you finish your homework.- 正确答案：You can play games only after you finish your homework.3. We will miss the train unless we leave early.- 正确答案：We will miss the train unless we leave early.4. I will help you if you need it.- 正确答案：I will help you if you need it.5. He won't come to the party unless he is invited.- 正确答案：He won't come to the party unless he is invited.6. We can achieve our goals as long as we work hard.- 正确答案：We can achieve our goals as long as we work hard.7. I will tell you this secret if you promise not to tell anyone else.- 正确答案：I will tell you this secret if you promise not to tell anyone else.8. She won't forgive him if she knew he lied.- 正确答案：She won't forgive him if she knew he lied.这些练习题涵盖了不同类型的条件状语从句，包括第一条件（真实条件句）、第二条件（非真实条件句）和第三条件（过去的非真实条件句）。
(完整word版)if与unless专项练习
If, unless 专项练习一、完成下列句子1. I’m sure if he _____(go) to the party, he________ (have) a great time.2. If the rain _______(stop) tonight, we will go to the cinema.3. I’ll buy a computer if I ______(have) enough money.4. You _________(not get) nervous if you _____(do ) enough exercise.5. I want to know if he _________(come) tomorrow, if he _______(come), I __________(give) the massage to him.6. Comrade Wang didn't know if there _______ (be) on English evening that day.7. Please tell me if she _______ (come) again next time.8. Mike asked me if we _______(ask) any questions the next class.9．The twins ______________ (fight) if they_______________ (argue).10. I ____________ (have) a bake sale if I _____________ (need) money for education.二、选择( )1. I don’t know _____ he will come tomorrow. _____ he comes, I’ll tell you.A. if; WhetherB. whether; WhetherC. if; ThatD. if; if( ) 2. He said he would help me with my maths if he _______ free.A．was B．will be C．would be D．is( ) 3. Tommy, do you know if Frank ________ to the zoo this Sunday if it ________?-Sorry, I have no idea.A. will go; is fineB. goes; is fineC. will go; is going to be fineD. goes; will be fine( ) 4. -Listen! It is still noisy in the head teacher’s office.-Go and see ________ they have finished correcting the papers yet.A. thoughB. whetherC. unlessD. while( ) 5. He asked me ________ we could go to Beijing to watch the game by plane.A. thatB. ifC. howD. what（）6 . The volleyball match will be put off if it ______.A. will rainB. rainsC. rainedD. is raining（）7. Difficulties are nothing if we ______ not afraid of themA. willB. shallC. areD. do（）8. I don’t like to be interrupted if I______.A. speakB. will speakC. am speakingD. spoke （）9. If you______ the book you will understand the story better.A. will be readingB. have readC. will have readD. read( ) 10. There is going to______ a sports meeting next week. If it ______ , we’ll have to cancel it..A. be; will rainB. have; will rainC. be; rainsD. give; is going to rain（）11. If you ______ a chance to study in a foreign country, just take it.A. gettingB. had gotC. will getD. get( ) 12. I want to know if they ____ the spring sports meeting next month.If they ____ it, I must get ready for it.A. hold; will holdB. will hold; holdC. hold; holdD. will hold; will hold（）13. –Look, what have you done?-Sorry. I think if I ________ another chance, I’ll do it better.A. giveB. will be givenC. will giveD. am given（）14.If you _______ him tomorrow, please ask him if he ______ to work on the farm with us.A. see ; goesB. will see; goesC. will see; will goD. see; will go( ) 15. It makes no difference __________.A. whether will you come tomorrow.B. Whether or not will be pass the examC. If he will come to the meeting or notD. Whether he will come to the meeting or not( ) 16. Even now many people still remembered ________ when hey heard about the 1976 earthquake in Tangshan.A. what were they doingB.that they were doingC. what they were doingD.if they were doing( ) 17. In summer, food goes bad easily _____ it is put in the refrigerator.A. untilB. ifC. unlessD. since( ) 18. –I hear Jack Chan will come to Shanghai next week.-Really? _______ he comes, my younger sister will be very happy.A. IfB. UntilC. UnlessD. Before( ) 19. We will have no water to drink______ we don’t protect the earth.A．until B. before C. though D. if( ) 20 –May I surf the Internet now?- No, _______ you have finished doing the dishes.A. unlessB. ifC. becauseD. when三、句型转换1.Do they want fried chicken? He asked the boys.(改为宾语从句)àHe asked the boys _______they ______fried chicken.2.Was the watch made in Shanghai?I don’t know.(改为宾语从句)àI don’t know_ ______the watch _______made in Shanghai.3..“Do you want to try something new?”Tom’s mother asked him.(同义句)Tom’s mother asked him _____________________to try something new.4. “Do you wash your clothes yourself?” Tom asked the girl next to him.(改复合句)Tom asked the girl next to him ______ ______ ______ her clothes herself.5. Did Peter come here yesterday? Li Lei wants to know. (改为宾从)Li Lei wants to know ______ Peter ______ here yesterday.6、You want to record. You should press the red button.(合并成含if的条件句)________________________________________________________________.7、I will go swimming. It won’t be cold tomo rrow. (合并成含if的条件句)_________________________________________________________________.8、“Do you want to try something new?” Tom’s mother asked him. (改为复合句,句意不变) Tom’s mother asked him________________to try something new.9.我还没有决定是否去参加迈克的生日聚会。
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If, unless 专项练习一、完成下列句子1. I’m sure if he _____(go) to the party, he________ (have) a great time.2. If the rain _______(stop) tonight, we will go to the cinema.3. I’ll buy a computer if I ______(have) enough money.4. You _________(not get) nervous if you _____(do ) enough exercise.5. I want to know if he _________(come) tomorrow, if he _______(come), I __________(give) the massage to him.6. Comrade Wang didn't know if there _______ (be) on English evening that day.7. Please tell me if she _______ (come) again next time.8. Mike asked me if we _______(ask) any questions the next class.9．The twins ______________ (fight) if they_______________ (argue).10. I ____________ (have) a bake sale if I _____________ (need) money for education.二、选择( )1. I don’t know _____ he will come tomorrow. _____ he comes, I’ll tell you.A. if; WhetherB. whether; WhetherC. if; ThatD. if; if( ) 2. He said he would help me with my maths if he _______ free.A．was B．will be C．would be D．is( ) 3. Tommy, do you know if Frank ________ to the zoo this Sunday if it ________?-Sorry, I have no idea.A. will go; is fineB. goes; is fineC. will go; is going to be fineD. goes; will be fine( ) 4. -Listen! It is still noisy in the head teacher’s office.-Go and see ________ they have finished correcting the papers yet.A. thoughB. whetherC. unlessD. while( ) 5. He asked me ________ we could go to Beijing to watch the game by plane.A. thatB. ifC. howD. what（）6 . The volleyball match will be put off if it ______.A. will rainB. rainsC. rainedD. is raining（）7. Difficulties are nothing if we ______ not afraid of themA. willB. shallC. areD. do（）8. I don’t like to be interrupted if I______.A. speakB. will speakC. am speakingD. spoke （）9. If you______ the book you will understand the story better.A. will be readingB. have readC. will have readD. read( ) 10. There is going to______ a sports meeting next week. If it ______ , we’ll have to cancel it..A. be; will rainB. have; will rainC. be; rainsD. give; is going to rain（）11. If you ______ a chance to study in a foreign country, just take it.A. gettingB. had gotC. will getD. get( ) 12. I want to know if they ____ the spring sports meeting next month.If they ____ it, I must get ready for it.A. hold; will holdB. will hold; holdC. hold; holdD. will hold; will hold （）13. –Look, what have you done?-Sorry. I think if I ________ another chance, I’ll do it better.A. giveB. will be givenC. will giveD. am given（）14.If you _______ him tomorrow, please ask him if he ______ to work on the farm with us.A. see ; goesB. will see; goesC. will see; will goD. see; will go( ) 15. It makes no difference __________.A. whether will you come tomorrow.B. Whether or not will be pass the examC. If he will come to the meeting or notD. Whether he will come to the meeting or not( ) 16. Even now many people still remembered ________ when hey heard about the 1976 earthquake in Tangshan.A. what were they doingB.that they were doingC. what they were doingD.if they were doing( ) 17. In summer, food goes bad easily _____ it is put in the refrigerator.A. untilB. ifC. unlessD. since( ) 18. –I hear Jack Chan will come to Shanghai next week.-Really? _______ he comes, my younger sister will be very happy.A. IfB. UntilC. UnlessD. Before( ) 19. We will have no water to drink______ we don’t protect the earth. A．until B. before C. though D. if( ) 20 –May I surf the Internet now?- No, _______ you have finished doing the dishes.A. unlessB. ifC. becauseD. when三、句型转换1.Do they want fried chicken? He asked the boys.(改为宾语从句)àHe asked the boys _______they ______fried chicken.2.Was the watch made in Shanghai?I don’t know.(改为宾语从句)àI don’t know_ ______the watch _______made in Shanghai.3..“Do you want to try something new?” Tom’s mother asked him.(同义句)Tom’s mother asked him _____________________to try something new.4. “Do you wash your clothes yourself?” Tom asked the girl next to him.(改复合句)Tom asked the girl next to him ______ ______ ______ her clothes herself.5. Did Peter come here yesterday? Li Lei wants to know. (改为宾从)Li Lei wants to know ______ Peter ______ here yesterday.6、You want to record. You should press the red button.(合并成含if的条件句)________________________________________________________________.7、I will go swimming. It won’t be cold tomorrow. (合并成含if的条件句)_________________________________________________________________.8、“Do you want to try something new?” Tom’s mother asked him. (改为复合句,句意不变) Tom’s mother asked him________________to try something new.9.我还没有决定是否去参加迈克的生日聚会。