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课件网) 第二部分 语法强化 第十三章 从 句 1.引导词:when,while,as,before,after,as soon as,until,since 如:Mozart started writing music when he was five years old.莫扎特在他五岁时开始作曲。 He visited a lot of places while he was travelling.他在旅行时游览了很多地方。 He left the classroom after he had finished his homework.他做完作业后就离开了教室。 2.一般情况下主句是将来时,从句要用一般现在时。 如:I will tell him as soon as he comes back tomorrow.明天他一回来,我就会告诉他。 I will not leave the classroom until my teacher checks my homework. 直到老师检查了我的作业,我才离开教室。 3.“not…until…/not…before…/…after …”的同义替换。 如:I will not go to bed until my mother comes back. =I will not go to bed before my mother comes back. =I will go to bed after my mother comes back.直到我妈妈回来了,我才会上床睡觉。 即学即练 用适当的引导词填空。 ( )1.(2023·营口市中考)It is necessary to ask your parents or teachers for some advice _____you make the final decision. A.because B.unless C.before D.after ( )2.(2023·青岛市中考)My hometown has changed a lot _____the subway was put into use. A.unless B.since C.if D.when ( )3.(2023·天水市中考)Let’s wait _____the rain stops. A.so B.while C.since D.until D B C ( )4.(2022·凉山彝族自治州中考改编)— Time to go home,Peter. — Wait a minute.I can’t go home _____I finish cleaning the hallway. A.since B.after C.until D.though ( )5.(2022·扬州市中考真题)_____ astronauts go on spacewalks,they wear spacesuits to keep themselves safe. A.Though B.Till C.When D.Unless ( )6.(2021·天津市中考改编)Would you mind looking after my plants _____ I am away A.while B.though C.and D.so that ( )7.He _____to us as soon as he gets there. A.write B.will write C.has written D.wrote B A C C 1.引导词:if,unless 2.if…not与unless及or的同义句转换。 3.主句为将来时,从句用一般现在时代替,即主将从现。 如:If it doesn’t rain tomorrow,we will go fishing.=Unless it rains tomorrow,we will go fishing. 如果明天不下雨,我们将会去钓鱼。 If we aren’t quick,we’ll be late for school.=Be quick,or we’ll be late for school. 快点,不然我们上学会迟到的。 即学即练 一、单项选择 ( )1.(2023·长春市中考)It is really dangerous _____people run the red traffic light. A.if B.unless C.though D.until ( )2.(2023·宿迁市中考)Miss Xu goes jogging in Huanghe Park every morning _____it rains. A.unless B.till C.since D.as ( )3.(2023·安徽省中考)Our country will be much better for everyone in future _____we all do something to help now. A.if B.before C.so that D.even though A A A 二、用括号里所给单词的适当形式填空。 1.(2022·河北省中考改编)If you can use your dictionary,you (learn) English better. 2.(2022·无锡市中考改编)You will not get the special gift unless you (finish) all the tasks. 3.(2021·马山县中考改编)— I wonder if he (go) for a trip with us tomorrow. — He will go with us if he (be) free tomorrow. 4.(2021·昆山市中考改编)— Would you like to play tennis with me if it ... ...
