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【易错考点回顾】条件状语从句

【易错点睛】

引导条件状语从句的连词有if（假如），as/so long as（只要），unless（除非）等。在条件状语从句中，主句与从句的谓语动词也遵循“主将从现”的原则，即如果主句是一般将来时的句子、祈使句或主句中含有情态动词，则从句用一般现在时代替一般将来时。 You will not pass the exam unless you study hard. 除非你努力学习，否则你将通不过考试。

If I have enough money, I will travel around the world. 如果我有足够多的钱，我将会环游世界。 if用法总结：

用法 ①主句为一般将来时态，if从句用一般现在时态（即主将从现）。 ②主句中含有情态动词，if从句用一般现在时态。 ③主句为祈使句，if从句用一般现在时态。 【易错考点回顾】

1. Tomorrow we’ll go to the city park _______ it is sunny.

A. as soon as B. when C. if D. as 【错因分析】没有掌握住if引导时间状语从句时的用法特点，是造成错选的主要原因。 【思路点拨】正确理解连词的意思和用法，再结合语境是解题的关键。

【正确答案】句意：如果明天天气晴朗的话我们就去城市公园。根据题意可知此题考查if引导的条件状语从句，从句用一般现在时，主句用一般将来时。故选C。 2. —Shall we have the volleyball match tomorrow? —Oh, it will be put off if it _________.

A. snows B. is snowing C. snowed D. snow 【错因分析】此题考查的是if引导的条件状语的时态特点，如果没有掌握住状语从句中，主将从现这一用法特点的话，往往容易造成错选。

例句 We will stay at home if it rains tomorrow. 如果明天下雨，我将要呆在家。 If you finish your homework, you can go home now. 如果你做完了作业，你现在可以回家了。 Don’t jump into the river if you feel very hot. 如果你感到很热，不要跳入河里。 【思路点拨】在考查连词用法的时候，也会从时态特点这一角度考查，需明确if引导条件状语从句的时候，时态多用主讲从现，即主句为一般将来时，从句应用一般现在时。 【正确答案】本题考查条件状语从句。主句为一般将来时，从句应为一般现在时，即主将从现原则，故选A。 【中考链接】

1. （2017西宁）If it ______ sunny tomorrow, I will go shopping with my friend in the supermarket.

A. will be B. be C. is D. was 【答案】C

解析：if引导的条件状语从句遵循主将从现的原则，主句为一般将来时，从句应用一般现在时表示将来。句意：如果明天是晴天，我将和我的朋友去超市购物。故选C。

2. （2017宁夏）We will have a picnic in the countryside _______ it doesn’t rain. A. unless B. although C. until D. if 【答案】D

解析：考查连词辨析。句意：如果不下雨，我们将去乡下野餐。if意为“如果”， 引导条件状语从句，符合语境。unless意为“除非”，although意为“尽管”，until意为“直到”，均与语境不符。故选D。

3. （2017湖北黄冈）—Do you think we should share our problems with our parents? —Sure! ______ we talk to them, we’ll feel worse.

A. If B. Although C. Because D. Unless 【答案】D

解析：考查连词辨析。根据答语“sure”可知，此处指如果我们不跟父母谈我们的问题，我们会感觉更糟糕。unless意为“除非，如果不”，引导条件状语从句，符合语境。故选D。

【闯关提分训练】条件状语从句

1. —May I go to Garden Expo with you tomorrow?

—No, you can’t, ______ you have a ticket. I have only one. A. as soon as B. if C. until D. unless 2. If he ______, I ______ swimming alone.

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A. doesn’t come; will go B. won’t come; will go C. will come; won’t go D. is coming; don’t go 3. You can succeed _______ you believe in yourself.

A. as long as B. as soon as C. as...as D. as often as 4. —Lucy, what about going camping if it ____ tomorrow? —Sounds great!

A. didn’t rain B. doesn’t rain C. won’t rain 5. （2016湖北宜昌）—Learning to love is like learning to walk. —Yes, ______ we step out bravely, we’ll find it’s not so difficult. A. as if B. even though C. as long as D. as far as 6. Talk to your teacher and you will get help ______ you have a problem. A. if B. though C. because D. while 7. —I don’t know if Mike ______ to my school tomorrow. —If he ______, I will be very happy.

A. comes; comes B. came; will come C. will come; comes D. will come; came

8. （2016安徽）Our world will get better and better ______ each of us lives a greener life.

A. before B. if C. though D. until

9. —We will certainly enter a good high school ______ we work hard. —Yes. Our dream will come true by working hard.

A. as soon as B. as long as C. as far as D. even if 10. Come on, Tom! You will miss the train ______ you hurry up. A. unless B. after C. because D. if

11. Please put up your hands ______ you have any questions. A. if B. whether C. how D. what

12. I won’t go to the meeting ______ I’m invited. A. but B. if C. unless D. when

13. —What will happen ______ we hold the party next Monday evening? —Most of our classmates will not come.

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