1、高中英語語法連詞一. 概念連詞是用來連接詞，短語,從句或句子的詞連詞不作成分二. 相關知識點精講1. 表示并列關系的連詞有：and,bothand，notonlybutalso和neither等1) and:和，并且A:基本用法：“and”表示“和”、“并且”的意思，用來連接對等關系的字和字，片語和片語，句子和句子。Ienjoybasketball,footballandtabletennis.Theweatherbecomescolderandcolder.B:特別用法：祁使句后連接and,有條件句作用，此時and=ifyou,youllGostraighton,andyoullseethe

2、library.=Ifyougostraighton,youwillseethelibrary.2) bothand既也,(兩者)都A、bothand構(gòu)成的詞組作主語時，謂語動詞用復數(shù)。BothJimandKatearefromEngland.B、bothand否定句表示部分否定。YoucantspeakbothGermanandEnglish.Bothmyfatherandmymotherarentdoctors.3) neithernor：既不也不neithernor連接兩個并列主語時，謂語動詞靠近哪個主語就與哪個主語保持稱”和“數(shù)”的一致，即采取就近原則。NeitherInorhehas

3、seentheplaybefore.4) notonlybutalso:不但而且notonlybutalso連接兩個主語后的謂語動詞也遵循就近原則。Notonlythemotherbutalsothechildrenareill.2. 表示轉(zhuǎn)折關系的連詞有：but,however,yet,still,while等。Marywasanicegirl,butshehadoneshortcoming.Tomgotupearly,yethefailedtocatchthetrain.Hewasverytired,stillhekeptonwalking.Yourcompositionisfairlyg

4、ood,however,thereisstillsomeroomforimprovement.Janeishardworking,whilehersisterisquitelazy.3. 表示選擇關系的并列連詞有:or,eitheror,whetheror等。1) or:或、否則A:基本用法or表示“或”的意思，使用于兩者之中選擇一個的時候。-IsyourfriendEnglishorAmerican?-American.Hedoesntlikedumplingsornoodles.B:特別用法nor“人you祁使句后連接or,表“如果，否則”，有轉(zhuǎn)折的意思，此時or:dont,youIIHu

5、rryup,oryouIIbelate.=lfyoudonthurryup,youIIbelate.2）eitheror：或者或者;不是就是；要么要么A. eitheror連接兩個并列主語時，謂語動詞靠近哪個主語就與哪個主語保持“人稱”和“數(shù)”的一致，即就近原則。EitheryouorIamright.DoeseithersheortheyIikeEngIish?B. 由eitheror引導的否定句是完全否定。Sheisnteitherastudentorateacher.3）whetheror不管還是SheisaIwayscheerfuI,whetherathomeoratschooI.4.

6、 表示因果關系的并列連詞有：for（因為），so（所以）。HeisnotatschooItoday,forhehasabadcoId.ItwasIate,soIwenthome.5. 引導時間狀語從句的從屬連詞有：before,after,when,whiIe,as,tiII,untiI,sinee,assoonas等。AftertheyhadpIantedtheircrops,theytookarest.WehaveIearnedsixIessonssincehebegantoteachus.AssoonashegetstoBeijing,heIIcaIIme.1）when,whiIe,as

7、都表示“當時”，when從句謂語動詞既可以是瞬間動詞也可以是延續(xù)性動詞，可用于主從句動作同時發(fā)生或從句動作先于主句動作發(fā)生。whiIe從句謂語動詞只能是延續(xù)性動詞，側(cè)重主從句動作同時發(fā)生。as引導一個持續(xù)性動作，多用于主從句動作同時發(fā)生，強調(diào)“一邊一邊”。WhenIcamein,myfatherwascooking.Icameinwhen/whilemyfatherwascooking.HesangashewaIked.2）until用法：當主句謂語動詞是延續(xù)性動詞時，主從句都用肯定式，譯為“直到為止”;當主句謂語動詞是瞬間動詞時，主句用否定式，從句用肯定式，即not.until,譯為“直到才

8、”。Mr.Greenwaiteduntilhischildrencameback.（格林先生一直等到他的孩子們回來）Mr.Greendidntgotobeduntilhischildrencameback.（格林先生直到他的孩子們回來才睡覺）6. 引導條件狀語從句的從屬連詞有：if（如果）,unless（除非，如果不）等。Ifyoudontgosoon,youIIbelate.=Unlessyougosoon,youIIbelate.7. 引導原因狀語從句的從屬連詞有because,as,since等。because“因為”語氣最強，回答why提問時只能用because,其引導的從句可放在句首

9、或句末；as“由于”、since“既然”語氣不如because強，引導的從句常置于句首；for是并列連詞，語氣最弱，對前面分句加以解釋或補充說明，其引導的分句常置于句末且用逗號隔開。Hedidntgotoschoolbecausehewasill.Asitwasraining,wewenttherebybus.Sinceeverybodyishere,letsbegin.Itmusthaverainedlastnight,forthegroundiswet.注意：because與so不能同時使用。8. 引導讓步狀語從句的從屬連詞有：although/though（雖然，盡管）,eventhou

10、gh/if（即使）Although/Thoughitisaveryyoungcountry,itisveryrich.Evenif/thoughyouwerehereyesterday,youcouldnthelphim.注意：although/though引導的從句不能與but連用，但可與yet,still連用。9. 引導目的狀語從句的從屬連詞有sothat和inorderthat（以便，為了）等。Theteacherspokeloudlysothat/inorderthatwecouldhearhimclearly.10. 引導結(jié)果狀語從句的從屬連詞有：sothat（結(jié)果是）和so/suc

11、hthat（如此以至于）Itwasverycold,sothatthewaterinthebowlfroze.Hegottheresoearlythathegotagoodseat.Itissuchaheavyboxthatnobodycanmoveit.11. 引導比較狀語從句的從屬連詞有：asas（與一樣）,notas/soas（不及,趕不上）,和than（比）等。Iknowyoubetterthanshedoes.Heworksascarefullyasshe.Icantrunas/sofastasyou.12. 引導名詞性從句的從屬連詞有：that和if/whether（是否）等。We

12、knowthattheearthgoesaroundthesun.（賓語從句）Iwonderifhehasreceivedmye-mail.（賓語從句）Whetherhellgotherehasntbeendecided.（主語從句）注意：在時間狀語從句和條件狀語從句中，如果主句是將來時，從句要用一般現(xiàn)在時。IllgoonwiththeworkwhenIcomebacktomorrow.Hewontcomeuniessheisinvited.三. 鞏固練習1、IdontlikereadingwatchingTV.Whataboutyou?“Idontlikereadingallday,Ilik

13、ewatchingTVplays.A.and,butB.and,andYouwontknowthevalue（價值）ofthehealthA.untilB.afterC.or,andyouloseit.C.when3、WeboughtGrannyapresent,shedidntlikeit.A.butB.andC.or4、Studyhard,youwillpasstheexam.A.soB.forC.but5、Putonmoreclothes,A.andB.foryoullcatchcold.C.or6、Myshoesarewornout,Ineednewones.A.soB.ifC.bec

14、ause7、Heranfasthewontherace.A.enoughtoB.sothatC.tooto8、Heisonlytenmonths.Hecanreadwrite.A.eitherorB.neithernorC.bothandD.or,but2、D.becauseD.soD.andD.butD.andD.bothandD.sothat9、ShesaidshemightcomeSaturdaySunday.A.neithernorB.nitherorC.tootoD.sothat10、IfTomMikeasksfortheircar,tellhimtocometomorrow.A.o

15、rB.andC.withD.but11、Itwasalreadytenoclockwegottothemuseumthismorning.A.thatB.whenC.ifD.for12、Itsalongtimewemetlast.A.soB.afterC.sineeD.before13、Thatmathsproblemisdifficultnobodycandoit.A.tootoB.verythatC.sothatD.verybut14、Illgiveherthemessageshecomesback.A.sineeB.beforeC.untilD.assoonas15、theteacher

16、cameintotheclassroom,manystudentsweretalkingtoeachother.A.WhileB.IfC.SineeD.When16、Peopleoftenmistakeusforeachotherwearetwins.A.ifB.whenC.becauseD.after17、Couldyoutellmeinyourhometowninwinter?A.ifitoftensnowedB.whetherdoesitoftensnowC.ifitoftensnowD.whetheritoftensnows18、AreyousureMr.Liwillcometoyourbirthd