语法：连接词.ppt

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,Grammar,连词：,but,however,although,while,but:,连接两个并列分句,Honey is sweet,but,the bee,stings.,I ought to have helped her,but,I,never could.,2.,连接两个并列成分,They see the trees,but,not the,forest.,He no longer felt disappointed,but,happy and hopeful.,3.,后接状语,He tried to save it,but,in vain.,He glanced about,but,seeing only the empty room.,however,1.,多插在句子中间,1)His first response was to say no.,Later,however,he changed his,mind.,2)Sales are poor this month.There,may,however,be an increase,before Christmas.,2.,有时也放在句首或句尾,Ill offer it to Tom.,However,he may not want it.,You know all this as well as I do,however,.,although,though,although,和,though,都可作连词，引导让步状语从句，意思是“虽然”，“尽管”；在英语里如果用了,although,或,though,就不能再用,but,但可以用,yet,或,still.,although,较正式，多用于句首。,though,在非正式语体中较为普遍，但在下列用法中，不能用,although,要用,though.,a,.,表示强调时要用,even though.,b,.though,可以用在倒装句中。,Young,though,he is,he is quite,experienced.,c,.though,可以用作副词，表示“然而”,通常放在句末。,1)He said he would come.He,didnt,though,.,2)Ive a bit of headache.Its,nothing much,though,.,3),Economics is a difficult subject.,Its interesting,though,.,While,常用来引导状语从句，表示对比、让步、时间等,Some countries are rich,while,others are extremely poor.,While,Toms very good at science,his brother is absolutely hopeless.,While,they are my neighbors,I dont,know them well.,While,we dont agree,we continue to,be friends.,Strike,while,the iron is hot.,单项选择,1.John saves his money,_ George spends all he gets.,A.whether B.as,C.though D.while,2.Id love to come _I cant make it till 8 oclock.,A.so B.but,C.however D.while,3._Im writing this,you can be doing something else.,A.Before B.After,C.Until D.While,4._times were changed,Bursley was still Bursley.,A.Whether B.Though C.Whenever D.however,5.The south of the country grows richer,_the north grows poorer.,A.while B.neither,C.if D.although,6._he is very old,he is healthy.,A.As B.However,C.Though D.Whereas,7.Britain is not mountainous,_Italy is.,A.however B.while,C.although D.unless,8.He was feeling bad.He went to work,_,and tries to concentrate.,A.however B.so C.although D.while,9.He promised to help me._,he is busy and hasnt come.,A.While B.Although,C.However D.Whether,10.Shes been learning Italian for six years,_ she doesnt speak it very well.,A.for B.so C.but D.as,11.They wanted to charge$5 000 for the car,_ we managed to bring the price down.,A.but B.so,C.when D.since,12.-Somebody wants you on the telephone.,-_no one knows Im here.,A.For B.And C.But D.So,13.Victor certainly cares too,much about himself.,Yes.Hes never interested in,what _ is doing.,A.no one else,B.anyone else,C.someone else,D.nobody else,14.In the dark forests _,some,large enough to hold several,English towns.,A.stand many lakes,B.lie many lakes,C.many lakes lie,D.many lakes stand,15.I do very single bit of housework _ my husband Bob just does the dishes now and then.,A.since B.while,C.when D.as,16.My advisor encouraged _ a summer course to improve my writing skills.,A.for me taking B.me taking C.for me to take D.me to take,17.Mr.Hall understands that _ maths has always been easy for him,it is not easy for the students.,A.unless B.since,C.although D.when,18.Our bodies are strengthened by taking exercise._,our minds are developed by learning.,A.Probably B.Likely,C.Similarly D.Generally,19.These football players had no strict _ until they joined our club.,A.practice B.education,C.exercise D.training,20.We agreed _ here but so far she hasnt turned up yet.,A.having met B.meeting,C.to meet D.to have met,21._she is young,she knows quite a lot.,A.When B.However C.Although D.Unless,22.The horse is getting old and cant run _it did.,A.as faster as B.so fast than C.so faster as D.as fast as,