八年級下冊狀語從句講解及練習

1、1狀語從句狀語從句用來修飾主句中的動詞，副詞和形容詞的從句叫狀語從句。根據(jù)其含義狀語從句可分為時間狀語從句，地點狀語從句，條件狀語從句，原因狀語從句，結(jié)果狀語從句，比較狀語從句，目的狀語從句，讓步狀語從句。1.時間狀語從句(1)時間狀語從句常用whenaswhilebefeaftersincetilluntilassoonas等連詞來引導。.Itwasraininghardwhengottoschoolyesterday.Whilehe

2、wasdoinghishomewkthetelephonerang.(2)在時間狀語從句里，通常不用將來時態(tài)，用現(xiàn)在時態(tài)表示將來的動作或狀態(tài)。.I’llringyouupassoonasIgettoNewYk.(3)在帶有till或until引導的時間狀語從句的主從復合句里，如果主句用肯定式，其含義是“一直到……時”，謂語動詞只能用延續(xù)性動詞。如果主句用否定式，其含義是“直到……才……”“在……以前不……”謂語動詞可用瞬間動詞。.The

3、youngmanreadtillthelightwentout.Let’swaituntiltherainstops.2.條件狀語從句(1)條件狀語從句通常由ifunless引導。.WhatshallwedoifitsnowstomrowDon’tleavethebuildingunlessItellyouto.(2)在條件狀語從句里，謂語動詞通常用現(xiàn)在時態(tài)表示將來的動作或狀態(tài)。.I’llhelpyouwithyourEnglishif

4、amfreetomrow.Hewon’tbelateunlessheisill.(3)“祈使句()陳述句”在意思上相當于一個帶有條件狀語從句的復合句。.：Hurryupyou’llbelate.=Ifyoudon’thurryupyou’llbelate.Studyhardyouwillpasstheexam.=Ifyoustudyhardyouwillpasstheexam.3.原因狀語從句(1)原因狀語從句通常由becausesin

5、ceas引導。.Hedidn’tcometoschoolbecausehewasill.Asitisrainingweshallnotgothezoo.Sinceyoucan’tanswerthequestionI’llasksomeoneelse.3(2)although(though)不能用在同一個句子中。.我們不能說：Thoughitwasraininghardbuthestillwentout.應該說：Thoughitwasra

6、ininghardhestillwentout.或Itwasraininghardbuthestillwentout.8.地點狀語從句地點狀語從句常常由where來引導。Gowhereyoulike.Wherethereisawillthereisaway.一.選擇題1._______he’soldhecanstillcarrythisheavybag.A.ThoughB.SinceC.FD.So2.Doyouknowifhe_____

7、__toplaybasketballwithusIthinkhewillcomeifhe______freetomrow.A.comesisB.comeswillbeC.willcomeisD.willcomewillbe3.Inthezooifachild_____intothewatercan’tswimthedolphinsmaycomeup______him.A.willfalltohelpB.fallstohelpC.will

8、fallhelpD.fallshelping4.Idon’tremember________hewkedinthatcitywhenhewasyoung.A.whatB.whichC.whereD.who5.Wewillstayathomeifmyaunt________tovisitustomrow.A.comesB.comeC.willcomeD.iscoming6.Thepoliceaskedthechildren_______c

9、rossthestreet________thetrafficlightsturnedgreen.A.notbefeB.don’twhenC.nottountilD.notafter7.Iwaslatefclassyesterday_______therewassomethingwrongwithmybike.A.whenB.thatC.untilD.because8.I’llgoswimmingwithyouifI________fr

10、eetomrow.A.willbeB.shallbeC.amD.was9.Intheexamthe________youare______the_______mistakesyouwillmake.A.carefullittleB.mecarefulfewestC.mecarefulfewerD.mecarefulless10.Youshouldfinishyourlessons_______yougoouttopaly.A.befeB