1、1 (每日一练每日一练)人教版初三英语条件状语从句知识汇总大全人教版初三英语条件状语从句知识汇总大全 单选题 1、If you _ the classroom,please turn off the light.AleftBare leavingCleaveDleaves 答案:C 解析:句意:如果你离开教室,请关灯。考查 if 条件状语从句。根据“if”可知,此句是一个条件状语从句;再者根据“条件状语从句的主祈从现原则”可知,主句 是祈使句,从句时态用一般现在时,主语 you 非三单,动词用原形,因此 leave 符合句意。故选 C。2、If our government _ attenti
2、on to controlling food safety now,our health _ in danger.Awont pay;isBdoesnt pay;was Cwont pay;will beDdoesnt pay;will be 答案:D 解析:句意:如果我们的政府现在不注意控制食品安全,我们的健康就会处于危险之中。考查动词时态。本句是 if 引导的条件状语从句,当主句描述将来时态,条件状语从句中用一般现在时态表示将来动作,即“主将从现”原则。故选 D。3、We can easily become unhappy _ we solve our problems in our da
3、ily life.AunlessBifCuntilDafter 2 答案:A 解析:句意:如果我们不解决日常生活中的问题,我们很容易变得不开心。考查连词的用法。unlessif not 如果不;if 如果;until 直到才;after 在之后;“解决不了问题”是“很容易不高兴”的条件,此处指“如果不解决问题就会不开心”,用 unless 引导条件状语从句。故选 A。4、Can I go to watch My People,My Homeland this afternoon,mom?Im afraid you cant _ you finish your homework.Abecause
4、BifCunlessDthough 答案:C 解析:句意:妈妈,今天下午我能去看我和我的家乡吗?恐怕不能,除非你完成作业。考查从属连词辨析。because 因为;if 如果;unless 除非;though 尽管。根据回答“Im afraid you cant.you finish your homework.”可知此处指除非完成作业,否则不能去,用 unless 引导条件状语从句。故选 C。5、We will have a picnic if it _ rain tomorrow.AwontBisntCdoesnt 答案:C 解析:句意:如果明天不下雨,我们就去野餐。考查条件状语从句。本题是
5、 if 引导的条件状语从句,遵循主将从现原则,即主句用 will+动词原形,从句用一般现在时。本题从句的动词是 rain,主语是 it,故用助动词 doesnt。故选 C。6、The students of Grade 9 in Changchun have to take part in the P.E.test from 2016.Yes._ you want to pass it and be stronger,practice more.3 AUntilBIfCUnlessDOr 答案:B 解析:句意:长春九年级的学生从 2016 年开始必须参加体育测试。是的,如果你想通过它并且更强壮
6、,需要多练习。考查连词辨析。until 直到;if 如果;unless 除非;or 否则。根据句中的信息可知,practice more 是 you want to pass it and be stronger 的条件,所以用 if 引导条件状语从句,故选 B。7、Would you like to tell me something new about rubbish sorting in Chengdu?Yes.People will be punished _ they throw the rubbish into correct bins.AwhileBunlessCif 答案:B
7、解析:句意:你想要告诉我成都关于垃圾分类的新情况吗?是的。人们将受到惩罚,除非他们把垃圾扔到正确的垃圾箱。考查从属连词辨析。while 然而;unless 除非;if 如果。根据“People will be punished.they throw the rubbish into correct bins.”可知垃圾扔到错误的垃圾箱会被惩罚,unless 引导的条件状语从句符合。故选 B。8、Will you help me with the trouble?I wont help you _ you tell me the truth about it.AifBwhenCunless 答案
8、:C 解析:句意:你能帮我解决这个麻烦吗?除非你告诉我真相,否则我不会帮你的。4 考查连词辨析。if 如果,表条件;when 当的时候,表时间;unless 除非,表条件,相当于 if not。根据题干“I wont help youyou tell me the truth”,可知是条件状语从句,if 不合句意,故选 C。9、_ you master what the teachers have taught you,I believe you will get good marks.AAs long asBAs well asCAs soon as 答案:A 解析:句意:只要你掌握了老师教
9、给你的东西,我相信你会取得好成绩的。考查连词辨析。As long as 只要;As well as 和;As soon as 一就。“掌握了老师教给你的东西”是“会取得好成绩”的条件,用 as long as 引导条件状语从句。故选 A。10、No one is an island,so we need friends.In my opinion,you dont need a lot of them _ they are good.Aas soon asBas far asCas long as 答案:C 解析:句意:没有人是孤岛,所以我们需要朋友。在我看来,你不需要太多,只要他们是好的。考
10、查连词辨析。as soon as 一就;as far as 就而言;as long as 只要。“they are good”是“you dont need a lot of them”的条件,用 as long as 引导条件状语从句,故选 C。11、The home for the elderly will be closed _ it can get more donations.Dont worry.Those volunteers raised quite a lot of money.AsinceBunlessCifDbecause 答案:B 解析:5 句意:除非能得到更多捐款,否
11、则养老院将关闭。别担心。那些志愿者筹集了很多钱。考查从属连词辨析。since 自从,引导时间状语从句;unless 除非,如果不,引导条件状语从句;if 如果,引导条件状语从句;because 因为,引导原因状语从句。根据“The home for the elderly will be closed.it can get more donations.”可知,从句表示如果不能得到捐款,属于否定的条件,用 unless 引导。故选 B。12、What_if he _ the party tomorrow?Half the class wont come.Ahappens;will haveBwill happen;will have Cwill happen;hasDhappens;has 答案:C 解析:句意:如果他明天举行这个派对将会发生什么?一半的学生将不参加。考查 if 引导的条件状语从句。根据 tomorrow 可知,题干中“if”以及句意可知是 if 引导的条件状语从句,主句用将来时,从句用一般现在时。故选 C。