九年級英語復習狀語從句

狀語從句（一）時間狀語從句1．when,while,as的區(qū)別(1)when主句和從句中的動作或事情可以同時發(fā)生，也可以先后發(fā)生。例如：Whenwewereatschool,wewenttothelibraryeveryday.(2)while，主句中的動作與從句中的動作同時發(fā)生。Pleasedon’ttalksoaloudwhileothersareworking.(3)asIsawhimashewasgettingoffthebus.2．一些表示時間的名詞短語也可用來引導時間狀語從句theminute,themoment,theinstant,everytime,thelasttime,everytime。如：ThefirsttimeIgottotheisland,Iwasamazedbyitsbeauty.ThemomentIenteredtheroom,Ismelledsomethingusual.EverytimeIvisithim,heisalwaysreading.directly和immediately“一……就……”，相當于themoment/theinstant和assoonas。IknewsomethingwaswrongdirectlyIarrived.Theboysdidallsortsofmischiefimmediatelymybackwasturned.4．before和afterbefore引導的從句的動作通常發(fā)生在主句動作之后，如果從句是過去時，主句一般要用過去完成時或一般過去時。after引導的從句動作通常發(fā)生在主句動作之前，如果主句要用過去時，從句則要用過去完成時或一般過去時。Theplanehadtakenoffbeforehearrivedattheairport.Afterhehadlivedinthesouthfornearly20years,hedecidedtogotoseekhisfortuneinthenorth.nosooner...than和hardly(scarcely)．..when意為“一……就……”。主句動詞用過去完成時。如果nosooner,hardly或scarcely位于句首，主句要倒裝。Nosoonerhadheenteredthehousethanitbegantorain.Hehadhardlygonetobedwhenthetelephonerang.6．till和until“直到……”，句首只能用until。在肯定句中，主句要用延續(xù)性動詞；在否定句中，主句要用非延續(xù)性動詞，這時until和before同義。Untiltheyhadfinishedthework,theydidnotgohome.7.It與before,since,when引導的時間狀語從句連用時的區(qū)別：(1)Itis/hasbeen＋時間段＋since...自從……以來已有多長時間了。(2)Itis/was＋時間點＋when...“當……的時候，是……”。(3)Itbe＋時間段＋before...“要過多久、過了多久……才”。Howlongisitsincewemetlasttime?ItwasalreadymidnightwhenIgothome.ItwasnotlongbeforeshegotmarriedandmovedtoJapan.（二）地點狀語從句地點狀語從句用where,wherever引導Wherethereisawill,thereisaway.Wherevertheywent,theyreceivedawarmwelcome.（三）原因狀語從句原因狀語從句用because（因為），since（既然）,as（由于）引導1、由why提問必須用because回答。since,as不回答why的提問，而且從句一般放在句首，because一般放在主句之后。2、becauseof+名詞Becauseoftherain,wedidn’tgotothepark.3、because和so不可連用，只能選其一。（另有although,but）Whydidn’thecometoschool?Becausehewasill.SinceImustdie,Imust.既然我一定要死，我一定這樣做。4、for并列連詞，不能放在句首，主要放在兩個并列句之間。for所提供的理由為一個補充說明，而且前面常有逗號隔開。Thedaysareshort,foritisDecembernow.（四）目的狀語從句目的狀語從句用so（常用于口語）,that,sothat,inorderthat引導目的狀語從句的謂語常含有may,might,can,could,should,would等情態(tài)動詞。We’llsitnevertothefrontsowecanhearbetter.Theyhurriedtothestationinorderthattheycouldcatchthetrain.（五）條件狀語從句1．if和unlessif表示正面的條件，意為“如果”，unless表示反向的條件，意為“除非，如果不”。Ifyou’vegotexamstomorrow,whyaren’tyoustudying？Thesportsmeetwillbegintomorrowunlessitrains.【專家提醒】條件狀語從句中常用一般時表示將要發(fā)生的動作。2.providing,provided(that),supposing,suppose(that),aslongas,solongas,onconditionthat和incase這些連詞(詞組)意思相近，有“如果，只要，假如，假使，在……條件下”等意思。Supposing(that)youfailasecondtime,don’tgetdisappointed,buttryagain.Onconditionthattheliquidiscooledstillfurther,itwillturntoasolid.。3．onlyif和ifonlyonlyif引導的從句用陳述語氣，意為“只要”；ifonly引導的從句要用虛擬語氣，意為“但愿……”，“要是……就好了”。onlyifyouhavepersistence,canyouachievegreatsuccess.。IfonlyIhadwings,Iwouldbeabletotravelaroundtheworldeasily.（六）結果狀語從句結果狀語從句由such…that,so…that,sothat,that引導1.such…that的常用句型such+a/an+形容詞+可數名詞單數+thatsuch+形容詞+可數名詞單數+thatsuch+形容詞+可數名詞復數（不可數名詞）+that注意somany（much,few,little）+名詞，suchalotof（或lotsof）+名詞是慣用法。Sheissuchabeautifulgirlthatwealllikeher.Itwassuchdeliciousfoodthattheyateitup.2.so+形容詞或副詞+thatso+形容詞+a/an+可數名詞單數+thatHeissorichthathecanbuylotofthingsforhimself.Itwassohotadaythatweallwentswimming.Itwassuchagooddaythatweallwentswimming.3.sothat,that都可以引導結果狀語從句Hedidn’tstudyhard,（so）thathefailedtheexam.4.too…to,enough…to可以引導結果狀語從句與so…that替換Sheissoyoungthatshecan’tgotoschool./Sheistooyoungtogotoschool.Sheisn’toldenoughtogotoschool.（七）讓步狀語從句1．讓步狀語從句可由although，though，as，while，evenif(though)，whatever，whether...or...，nomatterwho(when，what...)等引導。Although/Thoughsheworksveryhard，(yet)shemakesveryslowprogress.WheneverI’munhappy(＝NomatterwhenI’munhappy)，itismyfriendwhocheersmeup.【專家提醒】however引導讓步狀語從句時，與它所修飾的詞一起放在句首。2．as引導的讓步狀語從句的常見的幾種倒裝方式(1)如果從句的謂語部分為“不及物動詞＋副詞”時，常將從句中的副詞提到從句的句首。Hardasyoumaytry，youwillnotsucceed.(2)如果從句的謂語部分為“情態(tài)動詞＋不及物動詞”，常將這個不及物動詞提到從句的句首。Waitasyoumay，hewillnotseeyou.(3)如果從句的謂語部分是“系動詞＋單數名詞”，則常將這個作表語的名詞提前，但這個名詞前面的不定冠詞要省略。Childasheis，hecantellrightfromwrong.3．while作“盡管”講引導讓步狀語從句時往往放在句首WhileIunderstandyourviewpoint，Idon’tagreewithyou.（八）方式狀語從句1．as和justas“如……；猶如……，正如……”。justas比as強調的語氣更強。Intheearlydays,peoplecouldnotcountaswedonow.Mostplantsneedsunlightjustastheyneedwater.2．asif和asthoughasif或asthough從句可以用陳述語氣，表示可能符合事實的情況；也可以用虛擬語氣，表示不符合事實或與事實相反的情況，意為“好像，仿佛”。Itlooksasthoughitisgoingtorain.Hespokeasifhewereaphilosopher.(從句動詞與主語謂語同時發(fā)生，從句謂語要用一般過去時)Hespeaksasifhehadbeentothemoon.(從句動作發(fā)生在主句謂語之前，從句謂語要用過去完成時)Hespeaksasifhewouldflytothemoon.(從句動詞發(fā)生在主句謂語之后，從句謂語要用would/could/might＋do)（九）比較狀語從句比較狀語從句由as…as,notas（so）…as,than,the+比較級，the+比較級引導Heswimsaswellasyou.（do）/Hegothereearlierthanyou.（did）1.Itookmydrivinglicensewithmeonholiday, Iwantedtohireacar.A.incase B.evenif C.eversince D.ifonly2.Anyone,once_______positiveforH7N9fluvirus,willreceivefreemedicaltreatmentfromourgovernment.A.tobetestedB.beingtestedC.testedD.totest3.Youmustlearntoconsultyourfeelingsandyourreason________youreachanydecision.A.although B.beforeC.because D.unless4.Intheglobaleconomy,anewdrugforcancer,itisdiscovered,willcreatemanyeconomicpossibilitiesaroundtheworld.A.whateverB.whoeverC.whereverD.whichever5.Shesaysthatshe’llhavetoclosetheshop________businessimproves.A.if B.unless C.after D.when6.If_____tolookafterluggageforsomeoneelse,informthepoliceatonce.A.asked B.toask C.asking D.havingasked7.Onecanalwaysmanagetodomorethings,nomatter_______fullone’sscheduleisinlife.A.howB.whatC.whenD.where8.MarkneedstolearnChinese_______hiscompanyisopeningabranchinBeijing.

A.unless B.until C.although D.since9._______Ihavetogiveaspeech,IgetextremelynervousbeforeIstart.

A.Whatever B.Whenever C.Whoever D.However10.IhaveheardalotofgoodthingsaboutyouIcamebackfromabroad.A.sinceB.untilC.beforeD.when11.Hewassobusy.Hecannotaffordenoughtimewithhisson_____hewantsto.A.evenifB.asifC.becauseD.before12.small,thecompanyhasabout1,000buyersinover30countries.A.AsB.IfC.AlthoughD.Once13.Therearesomehealthproblemsthat,when______intime,canbecomebiggeroneslateron.A.nottreatedB.notbeingtreatedC.nottobetreatedD.nothavebeentreated14.wehaveenoughevidence,wecan'twinthecase.A.OnceBAslongasC.U