時間狀語從句Grammar狀語從句(2)

when當(dāng)……的時候

while在……期間

as正當(dāng)……之時

before在……之前

after在……之后

since自從……以來

until直到……時為止

assoonas一……就……常見引導(dǎo)時間狀語的連詞：常見的時間狀語從句有:1.由when引導(dǎo)的時間狀語從句：表示主句的動作和從句的動作同時發(fā)生,或從句的動作發(fā)生在主句動作之前。如：Iwasgoingoutwhenavisitorcame.Ishalltellherthegoodnewswhenshecomes.2.由while引導(dǎo)的時間狀語從句：表示“當(dāng)……過程中”,強調(diào)動作在同一時期發(fā)生。由于while從句表示一個持續(xù)的行為，所以從句中要用持續(xù)性動詞,并且持續(xù)性動詞常用進(jìn)行時態(tài)。如：KeepaneyeonmylittlesisterwhileIamaway.WhilewewerewatchingTV,Jimcamein.3.由as引導(dǎo)的時間狀語從句：“當(dāng)……的時候,一邊……一邊……,隨著”,其從句與主句的主語往往是同一人或物,如：Shesangassheworked.她一邊工作一邊唱歌。(此句主從句還可使用進(jìn)行時)Shewassingingasshewasworking.4.由before引導(dǎo)的時間狀語從句：一般表示主句的動作發(fā)生在從句動作之前。Ihadwrittenmyreportbeforemyfathercameback.我父親回來之前,我已寫完我的報告。Ididn’tknowanyEnglishbeforeIcamehere.我到這兒來之前,一點英語都不懂。Afterhehadfinishedhiswork,heplayedagameofchesswithhisfriend.他做完工作后,和朋友下了一盤棋。5.由after引導(dǎo)的時間狀語從句：

表示主句的動作發(fā)生在從句動作之后。如：Afterhelockedthedoor,heleft.他鎖上門,就走了。6.由since引導(dǎo)的時間狀語從句：表示“自從……以來”,從句中的動詞,用過去時。主句中的動詞表示動作延續(xù)的情況,一般用現(xiàn)在完成時。如果主句中的動詞表示的不是延續(xù)的動作而是表示目前的狀態(tài),可用一般現(xiàn)在時。如：Sincehemetthisgoodfriend,hehasmadegreatprogressinhisstudies.自從遇見了這個好朋友,他已在學(xué)習(xí)上取得了巨大的進(jìn)步。ItistwentyyearssinceshejoinedtheParty.她入黨二十年了。(主句中的動詞表示的不是延續(xù)動作,而是狀態(tài),用現(xiàn)在時)7.由until引導(dǎo)的時間狀語從句：a.表示“直到……為止”,主句和從句都用肯定式,主句謂語動詞為持續(xù)性動詞。b.表示“直到……才”,主句用否定式,從句用肯定式,主句動詞為短暫性動詞。Theyworkeduntilitwaslate.他們一直工作到天黑。Shedidn’tgotobeduntilshe(had)finishedherhomework.她一直到寫完作業(yè)才睡覺。8.由assoonas引導(dǎo)的時間狀語從句：

表示“一……就……”。如：Assoonasshecametotheclassroom,shebegantoreadEnglish.她一到教室,就開始讀英語。1.Lucyknewnothingaboutit___hersistertoldher.A.becauseB.untilC.ifD.since典型例題解析3.Theyoungmantraveledallovertheworld____hehadaman-madeleg.A.thoughB.ifC.asD.becauseB2.Otherpeoplewon’tbepleasedifhe____thequeue.A.willjumpB.jumpsC.jumpD.jumpedBA4.ThestudentswillgotoSummerPalaceifit____tomorrow.A.don’trainB.won’trainC.doesn’trainD.isn’trainC5.Wewentskatingintheafternoon____thepartystarted.A.whenB.before6.____dinner,wejoinedagroupoffriendsandweallwenttothesquare.A.AfterB.Until7.____theywerewatchingTV,welistenedtomusicandsangtraditionalsongs.A.WhenB.WhileBAB8.____itwas12o’clock,weallshouted“HappyNewYear”veryloudly.A.AfterB.Assoonas9.Westayedinthesquare____oneo’clock.A.untilB.after10.____thepartywasover,wewalkedbacktoourhotel.A.WhenB.WhileBAA11.IhavebeentryingmybesttostudyEnglish___IwanttohaveachancetobeavolunteerfortheBeijingOlympics.

(2007太原市)

A.until

B.because

C.though

12.Wewon'tstartthemeeting______ourteacherarrives.(2010年天津市

)A.thoughB.untilC.whileD.orBB13.―Hedidn’ttellmeanything___heleft.

（2007年山東青島）A.untilB.beforeC.afterD.since14.Iwillneverforgetthatterribleaccident___ithappenedsolongago.(2007年江蘇揚州)A.onlyifB.eventhoughC.onlywhenD.eversince15._______theyaretwinbrothers,theydon'tlooklikeeachother.（2010江蘇省宿遷市

）A.

Though

B.SinceC.HoweverD.WhenABA16.―Whatdoyouthinkofherdress?

―Ithinkitstilllooksquitefashionableonher____itisastyleofmanyyearsago.

(2009年揚州市)A.

though

B.orC.soD.because

AFillintheblanksIwasdoingmyhomework______mysisterwaswatchingTV.______theboysgotthere,thefilmhadbegun.Myfatherlikestakingawalk______hehassupper.Youmustcleantheclassroom________youleave.Thestudentsstoptalking____________theteachercomesintotheclassroom.WhenbeforeafterwhileassoonasTranslatethesentences昨天當(dāng)我回家的時候,雨下得很大.

WhenIgothomeyesterday,itwasraininghard.他一到北京就會發(fā)郵件給你.

HewillsendanemailtoyouassoonashearrivesinBeijing.3.當(dāng)你吃飯前,你要洗手.

Beforeyouhavemeals,youhavetowashyourhands.4.公共汽車停之前,不要下車.

Youcan’tgetoffthebusuntilitstops.5.今天早上我們在吃早餐的時候,爸爸正在看報紙.

Whilewewerehavingbreakfas