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1.to,in orderto,so astoHe hasto earnlots ofmoney in orderto/to/so asto raisehis family.他赚很多钱是为了养家糊口引导目的状语从句，构成复合句，并且从句中谓语动词常与等情
2.so that,in orderthat can,could,may,might态动词连用Speak clearlyso that/in orderto everybodycan understandyou.请说清楚一点，这样每个人都能听得懂
3.so that既可以引导目的状语从句又可以引导结果状语从句引导目的状语从句时译为“为了“，引导结果状sothat语从句时可译为“以便He workednhard athis lessonsso thathe couldgain highgrades in the exams.他努力学习功课，争取考试能获得好的成绩中考常考条件状语从句，学生容易做错这道题的原因对条件状语从句的用法不了解条件状语从句，即在某种条件下，一件事情可能发生在英语中由连接词或等引导的状语从句叫作if unless条件状语从句条件是指某一件事情实现之后（状语从句中），一件事情（主句）才能发生，通常译作”假如，只要，如果”等意思条件状语从句中，主从句的时态要遵循“主将从现”的原则即，主句是将来时态时，从句用一般现在时代替将来时态引导条件状语从句的连词或词组有（如果），（除非），（只要）等如果主句是将来时,if unlessas long as条件状语从句也用一般现在时来表示如如果明天卜雨，我就待在家I willstay athome ifit rains tomorrow.You cantlearn Englishwell unless you workhard.除非你努力学习，否则是学不好英语的引导的条件状语从句Lif表示在某种条件下某事很可能发生If wepay muchattention to the earth,well havea betterworld.如果我们多关爱地球，就会拥有一个更美好的世界如果明天下雨，我们怎么办？If itrainstomorrow,what shallwe do如果你请他帮忙，他会帮你的If youask him,he willhelp you.If youfail in the exam,you willlet himdown.如果你考试不及格，你会让他失望的注意还可以引导虚拟条件句，表示不可实现的条件，从句中多用一般过去时或过去完成时if如果没有水会怎样？What wouldhappen ifthere wereno water引导的条件状语从句
2.unless的意思是如果不，除非可与互换unless if...notYou will fail inEnglish unlessyou workhard.你英语考试会不及格的，除非你更加努力You willfail toarrive therein timeunlessyoustart earlier.如果你不早点动身，你就不能及时赶到那儿除非下雨，比赛将照常进行Unless itrains,the gamewill beplayed.引导的条件状语从句
3.as/so longas的意思是只要”as/so longas只要你高兴，我就高兴So longas you^e happy,I will be happy.You mayborrow mybook aslongasyou keepit clean.只要你保持书的清洁，你就可以把我的书借去引导的条件状语从句
4.once引导的条件状语从句，意为一旦……就，从句可置于主句前或后once一旦开始，就绝不要停止Once youbegin,never stop.Maths iseasy tolearn onceyou understandthe rules.一旦你理解了规则，数学就不难学了提示在条件状语从句中，用一般现在时代替一般将来时，用一般过去时代替过去将来时If theweather isbad nextweek,well putoff theclimbing.如果下周天气不好，我们将推迟爬山Father toldme if I workedhard hewould buyme agift.爸爸告诉我，如果我努力学习，他会给我买一份礼物引导条件状语从句最常用的连词是常见的条件状语从句表示在某条件下，某事很可能发生,条件是可
5.if,if能存在的，主句中某种情况发生的概率也是很高的如如果你请他帮忙,他会帮你的If youask him,he willhelp you.如果你考试不及格，你会让他失望的If youfail inthe exam,you willlet himdown.If you have finishedthe homework,you cango home.如果你作业做完了就可以回家了另外，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if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 Iwere you,I wouldinvite himtothe party.如果我是你，我会邀请他参加聚会I wouldhave arrivedmuch earlierif!had notbeen caughtinthetraffic.要不是交通堵塞，我本会来得早一些条件句的时态搭配
6.if从句用一般现在时，主句用一般将来时1if如果他用跑的，他就会及时赶到那儿If heruns hellget therein time.如果你拉猫的尾巴，它就会抓你The catwill scratchyou ifyou pullher tail.从句用一般现在时，主句用2if may/might/canIf thefog getsthicker theplane may/might bediverted.如果雾再大一些，飞机可能就会改在别的机场降落如果雪停了，我们就可以出去If itstops snowingwe cango out.从句用一般现在时,主句用3if must/shouldIf youwant tolose weightyou must/should eatless bread.如果你想减肥，你必须少吃面包从句用一般现在时，主句用一般现在时4if也可用如果把冰加热，它就会化成水If youheat iceit turnsto water.will turn从句用现在进行时，主句用一般将来时5ifIf youare lookingfor Peteryoull findhim upstairs.如果你是在找彼得，上楼就会找到他从句用现在完成时，主句用一般将来时6ifIf youhave finisheddinner Illask thewaiter forthe bill.如果你吃完了，我就叫服务生来算账［压轴题矗骑（•安徽淮北•校考一模）—
1.2023Do youstill rememberthat accident,Danny—Of course.KII neverforget it_it happenedso longago.A.only if B.even thoughC.because ofD.ever since（•江苏连云港•模才以预测）
2.2023American peopleand Britishpeople speakthe samelanguage,their culturesarequite different.A.Since B.If C.Although D.Because
3.（2023•湖北•统考一模）一What do you thinkof thenew movieWandering Earth（《流浪地球》）—Its wonderfuHreally likeit.A.so;that B.such;that C.too;to D.enough;to（,河北唐山•统考一模）
4.2023If wedont protectnature,some wildlifedie outinthefuture.A.need B.may C.can/t D.shouldnt
5.（2023•江苏南京•模拟预测）The filmThe BattleAt LakeChangjin^i hasreceived highpraise sinceit onscreen.A.put B.is putC.was putD.will beput（•江苏南京•模拟预测）
6.2023—Will youplease tellRobin tocome earlyto helpus getready fortheparty—All right.KII tellhim atonce.A.ifIsee himB.if KIIsee himC.untillsee himD.until Illsee him（•上海•模拟预测）
7.2022—You dontlook well.Whats wrongwith you,Wang Jing—Last nightI didmy homeworkand didntgo tobed12oclock.A.when B.until C.and D.if（•上海虹口•统考一模）
8.2023Unless youavoid chargingyour cellphoneallthetime,the batteryinside iteasily.A.damages B.is damagedC.will damageD.will bedamaged（•山东济南•模拟预测）
9.2022If hehard,he hisexams.A.works;willfailB.doesnt work;will failC.will work;fails D.is working;won/t fail（秋•山东青岛•九年级青岛三十九中校考期末）
10.2022Mr.Black sharedcreative ideawith usthatwe achieveda greatsuccess inthe end.A.so B.such C.so aD.such a（秋•安徽合肥•九年级统考期末）
11.2022he heardthe littlegirl cryingfor helpoutside,he rushedout ofthe roomimmediately.A.Before B.Unless C.As soonas D.Although（•安徽,模拟预测）
12.2022—Sir,when canwe havetwo daysoff—Not untilyour tasktomorrow.A.completes B.is completedC.will becompleted D.will complete
13.（2022・江苏无锡,模拟预测）—When shallwe goand playbasketball—Not untilmy biketomorrow.A.will repairB.has repairedC.is repairedD.will berepaired（春•江苏苏州•九年级校考开学考试）—
14.2022Excuse me,Mr.Wu,When shallwe havethe meeting—Not untilit inhalf anhour.A.is preparedB.willbeprepared C.prepared D.was prepared（春•江苏苏州•九年级校联考期中）
15.2022they decidedwhich subjectto choose,students shouldcontinueresearching theseguidebooks.A.As B.Since C.While D.Until（•江苏南通•统考二模）一
16.2022He madea seriousmistake,but hetook actionto changethat itgotworse.—Luckily hedidnt causeany loss.A.when B.after C.until D.before（•山东东营•统考一模）
17.2022—Its nota goodidea togo abroadon vacationnow.—Yes.Wed betterwait the COVID-19is overacross theworld.A.if B.but C.until D.unless（春•江西景德镇•八年级景德镇一中校考期末）一
18.2022Be careful,dont staytoo tothe tigerswhentaking photos,Jim.—Few canrealize thedanger accidentshappen.A.closely;unless B.closely;when C.close;if D.close;until（•江苏徐州•统考——模）
19.2023The spacelecture givenby theastronauts waseye-opening experiencethat it arousedmy brothersinterest inscience.A.so B.so anC.such D.such an（•河北衡水•统考二模）
20.2022You neverreally understanda personyou considerthings fromhispoint.A.until B.while C.because D.if（秋,九年级单元测试）
21.2022Your dreamwill cometrue yougive itup halfway.Hang inthere!A.ifB.until C.unless D.because（秋•九年级单元测试）
22.2022Anna hasntplayed withher oldtoy fora longtime,she stillwants tokeep them.代A.Until B.Although C.A erD.Unless（•厂’西•统考三模）
23.2022I wasdoing myhomework myfather camein.A.for B.while C.since D.when（秋•重庆大渡口•九年级统考期末）
24.2022Wei Dongyi,the legendstudent ofPeking University,is usuallyseen tobuybarely mantouwithout anyvegetables ormeat.He leadsa simplelife hesaves moretimeto studydifficult mathproblems.A.so;that B.such;that C.such;in orderD.so;inorderto（秋•江苏镇江•九年级统考期末）
25.2022There isusually muchtraffic inthis townthatitdrives memad.A.such B.such aC.so D.so a（•江苏常州,校考二模）
26.2022We cango toforeign countriestheCOVID-19virus iscontrol.A.unless;under B.if;out ofC.unless;out ofD.if;under（春•江苏无锡•九年级校联考期中）一（播出）？
27.2022will theTV playbe broadcasted—Perhaps itsreviewed successfully.A.How long;until B.When;untilC.How soon;not untilD.How often;not until（•重庆渝中•重庆巴蜀中学校考模拟预测）
28.2022youhaveseen allthe informationof bothplayers,will winA.Since;who do you thinkB.As;whoeverC.When;doyouthink whoD.For;doyouthink（•山东滨州•统考一模）
29.2023many thingschange alot,a loveof sportshasn/t changeda bit.A.If B.Before C.Though D.Because（•江苏常见•校考二模）一
30.2022exciting newsit isto haveseveral undergroundsin Changzhousoon!Do youknow whenMetro Line3will open—end of
2023.A.How;Until B.What;Not untilC.What;Until D.What an;Not until。
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