八年级上册英语if条件句练习题

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八年级上册英语if条件句练习题 观察与思考：观察1a中含有if的句子，你发现主句和从句的特点吗？if引导的是一个条件句，主句用__________，从句用__________。注意：在与if条件句连用的主句中我们一般用will 表示将来时，而不用be going to 表示将来时。 if引导的条件句位置灵活，可直接放在主句后面。若if引导的从句在前时，应在句中加__________。 如果if条件句谈论的是今后可能出现的情况，则主句大多用_______时；若if条件句谈论的是客观事实，则主句大多用_________时或含情态动词的句子。 在if条件句中通常用________时代替一般将来时表将来。 一.单项选择 1.If you _____ to the party, you’ll have a great time A. will go B. went C. goD. going 2. It will be a long time ____ Peter _____ his work. A. since, has finished B. after, finishes C. when, will finish D. before, finishes.. What will father _____ us from Japan? A. takeB. bringC. carryD. make . Weifang is famous ______ kitesA. forB. toC. onD. with 5． I ____ her the answer if she ____me. A. can tell, will askB. will tell, will ask 精品文档 2016 2 / 18

C. would tell, ask D. will tell, asks. – What are you going to do tomorrow? --We’ll go to the library tomorrow if it ___. A. isn’t rainB. rainC. won’t rainD. doesn’t rain.—Do you know when he will come back tomorrow? --Sorry, I don’t know. When he ____ back, I’ll tell you. A. comes B. will comeC. comeD. may come 8. What will you do if you _____ to the old folk’s home visit? A. goB. wentC.goingD. will go. If I eat ____ food, I’ll be very fat. A. too manyB. many tooC. too much D. much too 10. I’ll give the book to him if he ___ here next Sunday. A. will come B. comes C. is coming D. came 11. There ____an English film in our school tomorrow. A. is going to have B. will haveC. is going to beD. has 12. Could you tell us where ____？ A. will the next Olympic Games held B. the next Olympic Games will be held C. would the next Olympic Games be heldD. the next Olympic Games would be held 13. When my mother returned last night, I ____ a book. A. readB. am readingC. was reading D. am going to read 14.What ____ you ____ when it began to rain? A. do, do B. were, doing C. are, doing D. did, do 15. 精品文档 2016 3 / 18

I’ll wake you up when he ____back.A. willB. is going to comeC. comes D. come 二、用所给词的适当形式填空 1.If you ________ tired, you _________ to have a rest.. Where _____ he ____ the film if he _________ time?. If there ____ fewer trees, there _______ more pollution.. He ___ more casually if he ___ on weekends.. If Marcia _______ alone, she _______ a pet parrot.. Lana _____ buy) a new dress if the old one ____ out of style..The twins _______ if they__________. 8. I ______ a bake sale if I ____ed) money for education.. Peter ____ me a beautiful souvenir if he ____ Spain. 10. If Mr Green _______ I am hard- working, my parents ___ glad. 11.I ______ to the beach if it________ this week. 12. _____they ___ a match if the P.E. teacher __ busy? 13.He ____ a letter to his grandparents if he ____ his report card this week. 14. If she ______ up late, she _____ the early bus. 15. Peter ____ in English if he ____ the exams in Peking University. 三、完成句子 精品文档 2016 4 / 18

1.如果他到的晚了会发生什么事情？What ______ _____ if he ____ late?. 如果努力学习，你就会取得好成绩。If you_________ ________, you ______ ______good _______. 3. 他如果看电视太久了，他的父母会不高兴。 If he _____ TV too much, his parents _____ _________unhappy.. 如果我们为他组织生日聚会，大家都会来的。 Everyone __________ if we _______a birthday party ________ him.. 如果明天不下雨，我会和你一起去公园的。 If it _____ ______tomorrow, I _____ go to the park ______you. 6. 如果她睡过头了，就会旅游迟到的。he____ ___ ___ ___ the trip if she _____ ___ 7. 如果他有空，他会帮助你的。If he ____ ____ , he ______ ____ you.. 如果Tom考试不及格，他就没有机会上高中了。 Tom ______have the _____to go to the high school if he ________the exams.. 你如果抄同学的作业就不能学好各门功课。 You _______ _____ good at all the subjects if you ______ the other students’ homework. 精品文档 2016 5 / 18

10.如果你上课睡觉，老师会生气。If you______ in class, your teacher ____ ____ ____ _____ you. 13夏 八年级英语 语法专项 if引导的条件状语从句专项练习 引导条件状语从句最常用的连词是if，常见的if条件状语从句表示在某条件下，某事很可能发生，条件是可能存在的，主句中某种情况发生的概率也是很高的。 If you ask him，he will help you．如果你请他帮忙，他会帮你的。 If you have finished the homework， you can go home．如果你作业做完了就可以回家了。 另外，if从句还表示不可实现的条件或根本不可能存在的条件，也就是一种虚拟的条件或假设。 从句多用一般过去时或过去完成时，表示对现在或过去的一种假设。如： If I were you，I would invite him to the party．如果我是你，我会邀请他参加聚会。 I would have arrived much earlier if I had not been caught in the traffic． 要不是交通堵塞，我本会来得早一些。 1.if引导的条件状语从句：表示在某种条件下某事很可能发生。 If we pay much attention to the earth, we’ll have