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1、【初中英语】【初中英语】20182018人教人教新目标版八下新目标版八下Unit10IvehadthisbikefUnit10Ivehadthisbikeforthreeyearsorthreeyears语法专题语法专题- -GrammarFocusGrammarFocus习题课习题课件件since和for的区别since和for都用于现在完成时中,其中since后面可接过去的时间点,也可接“一段时间ago”,还可以接从句;for后面只能接“一段时间”。如:My parents have lived in this city since 2009.我的父母从2009年起就居住在这座城市。She
2、 has been a doctor since two years ago.她从两年前就当医生了。Lily has had the toy bear for two years.莉莉已经有这个玩具熊两年了。【注意】(1)终止性动词也称非延续性动词,可以用于现在完成时,说明某个动作的结果还存在,但不能与表示一段时间的状语连用。如:The Whites have come back.(正)The Whites have come back for two days.(误)(2)在否定句中,终止性动词可以与表示一段时间的状语连用。如:I havent heard from my friend fo
3、r three weeks.我已经有三周没有收到我朋友的来信了。【拓展】当终止性动词与表示一段时间的状语相矛盾时,常用以下方法进行转换:(1)用ago把现在完成时的句子改为一般过去时。如:He has left the village for six days.(误)He left the village six days ago.(正)(2)用“一段时间has passedsince一般过去时”句型改写。如:She has borrowed the book for two weeks.(误)Two weeks has passed since she borrowed the book.(
4、正)(3)用“It has been一段时间since一般过去时”句型改写。如:His grandfather has died for a few years.(误)It has been a few years since his grandfather died.(正)(4)用系表结构(be形容词副词)改写或用相应的延续性动词代替终止性动词。如:come/arrive/gobe in/at, begin/startbe on,finish/end/stopbe over,openbe open, diebe dead,leavebe away,closebe closed,fall as
5、leepbe asleep,joinbe a member of/be in,becomebe,buyhave,borrowkeep,get to knowknow,put onwear,catch a coldhave a cold,come backbe back一、用括号内所给单词的适当形式填空。1We _(not see)each other since I _(leave) the university.2The hospital _(be) here for 10 years.It _ (be) the tallest building in our city.3She _(nev
6、er be) to the amusement park since two years ago.Her parents _(take) her there next week.4I dont want to give away my football shirts although I _(not play) for a while now.5I _(never visit) the Great Wall before.I want _(visit) it one day.havent seenlefthas beenishas never beenwill takehavent playe
7、dhave never visitedto visit二、单项选择。6(导学号:38274041)(齐齐哈尔中考)How long is it since he _ this school?He _ for three years.Ahas left; has left Bleft;has been awayCleaves; has left7(毕节中考)Its nice to see you again.We _ each other since 2016.Awont see Bhavent seen Cdont see Ddidnt seeBB8How long_ you_ in Lipi
8、ng,Mr. Green?Since last month.Adid;come Bdo; come Chave;come Dhave; been9(江西中考)Since we began to use the Internet, our lives _ a lot.Achange Bhad changedCwill change Dhave changedDD10(北京中考)Lily is my classmate.We _ each other since she came to our school.Aknow BknewChave known Dwill knowC三、按要求完成下列句子
9、。11Her parents came to China five years ago.(改为同义句)Her parents _ China _ five years.12My father left home the day before yesterday.(用for two days改写句子) My father _home for two days.13Susan bought the umbrella the day before yesterday.(改为同义句)Susan _ the umbrella _two days ago.have been inforhas been away fromhas hadsince结束结束