牛津英语 8B UNIT1 GrammarPPT课件.ppt

Unit1 1 Unit1Pastandpresent 2 3 AnswersomequestionsabouttheconversationbetweenMrChenandMillie Revision Model1 HasSunshineTownchangedalot Yes ithas Model2 HaveMrChenandhiswifemovedoutofthetown No theyhaven t 4 Questions 1 Hasthegovernmentbuiltanewpark 2 HavemostofMrChen soldfriendsmovedaway 3 Hasitbecomeimpossibleforthemtoseeeachotherasoftenasbefore Yes ithas Yes theyhave Yes ithas 5 ThePresentPerfectTense 现在完成时 1 Weusethepresentperfecttensetotalkaboutanactionthatstartedinthepastandcontinuestothepresent e g IhavelivedheresinceIwasborn Shehasworkedinthisfactoryfornineyears 6 2 Weusethepresentperfecttensetotalkaboutanactionthathappenedinthepastandhaveaconnectionwiththepresent e g EddiehasjusteatenHobo sfood Eddieatethefood andnowHobohasnothingtoeat Ihavealreadyseenthefilm IsawthefilminthepastandnowIstillremembersomethingaboutthefilm 7 3 Wealsousethepresentperfecttensetotalkabouthowmanytimesanactionhashappenedtillnow e g Ihavealreadyreadthisbookmanytimes MrChenhasbeentotheUSAtwice 8 4 Wemakepositivestatementsinthepresentperfecttenselikethis 9 5 Wemakenegativestatementsinthepresentperfecttenselikethis havenot haven thasnot hasn t 10 6 Weaskandanswerquestionsusingthepresentperfecttenselikethis 11 7 Weformthepastparticiplesofregularverbsbyadding ed justaswhatwedotoformthesimplepasttenseoftheseverbs 12 13 8 Weformthepastparticiplesofirregularverbsdifferently Herearesomeexamples 14 15 Thefollowingshowsmoreexamplesofthepastparticiplesofsomeverbs visitrepairlivemovetrystudyfitplan visitedrepairedlivedmovedtriedstudiedfittedplanned BaseformPastparticiple BaseformPastparticiple hitputmeetmakesellgivewritethink hitputmetmadesoldgivenwrittenthought 16 Ashorttest Writethepastparticiplesoftheverbsbelow borrowplansayhopecrygrowmakesendhitgetwatchenjoy borrowedhopedmadegotten plannedcriedsentwatched saidgrownhitenjoyed 17 Completethesentencesbelowusingthepresentperfecttense 1 They finish theirhomeworkalready 2 John never visit China 3 MrLi repair overtenbicyclessinceMonday 4 We notsee eachotherforyears havefinished hasvisited hasrepaired haven tseen 18 5 Myparents notcome backyet 6 Ourteacher teach usalotaboutthehistoryofChina haven tcome hastaught 19 Completetheconversation Usethecorrectformoftheverbsinbrackets Millie you see anyfilmsrecently Sandy Sandy No Ihaven t Whataboutyou Millie I see onelastSaturday Sandy What sitabout Haveseen saw 20 Millie It saboutthechangesinBeijingoverthepastcentury Fromthisfilm I learn moreaboutBeijing spastandpresent Sandy Oh IthinkI hear aboutthefilm Doyouplantoseeitagain Millie Yes I dliketo havelearnt haveheard 21 一 现在完成时的构成 1 现在完成时的肯定句句型 主语 have has 过去分词 e g HehaslivedinBeijingfortenyears Ihavefinishedmyhomework 2 现在完成时的否定句句型 主语 have has not 过去分词 e g Ihavenotseenthemovieyet Hehasn tbeentoBeijingsincethen 语法小结 22 3 现在完成时一般疑问句的构成 Have Has 主语 过去分词 Yes 主语 have has No 主语 haven t hasn t e g Haveyoufinishedyourhomeworkyet Yes Ihave No Ihaven t haven t havenothasn t hasnotI ve IhaveHe s Hehas 23 Presentperfecttense现在完成时 用法一 表示过去发生的动作对现在造成的影响或结果 强调过去动作与现在的联系 24 Adverbsoftime 1 already 肯 yet 否 疑 Ihavealreadydonemyhomework Ihaven tdonemyhomeworkyet Haveyoudoneyourhomeworkyet 25 1 Theboyhasalreadygonehome 一般疑问句 2 Thegirlhasnotgivenittomeyet 改为肯定句 3 TheyhavevisitedtheIceIslandalready 改为否定句和一般疑问句 句型转换 Hastheboygonehomeyet Thegirlhasalreadygivenittome Theyhaven tvisitedtheIceIslandyet HavetheyvisitedtheIceIslandyet 26 Adverbsoftime 2 everneverjustrecently HaveyoueverbeentoLondon ThisisthebeststorythatIhaveeverread Ihaveneverseenthisfilm Shehasjustgonetothelibrary Hehasn theardfromhisfatherrecently 27 Adverbsoftime 3 beforeuptonow 直到现在 sofar 到目前为止 bynow 到现在为止 in over duringthepast last 时间 在过去的 中 28 Adverbsoftime 4 once twice Ihaveseenthefilmtwice 5 This Itisthefirsttime Itisthefirsttimehehasdrivenacar 29 用法二 for 时间段since 时间点since 句子 一般过去时 Katehaslivedherefor3years Katehaslivedheresince3yearsago KatehaslivedheresinceshecametoChina 表示过去开始的动作或状态 一直持续到现在 动词使用延续性动词 常与for或since引导的时间连用 30 用正确时态填空Hurryup Lunch already begin heever ride abike Liming hurt hisarmlastweek He already stay inbedforfivedays Yesterday she buy onebookinthebookshop She notread itsincethen I already lose mypen I buy ittwodaysago He wait foranhour I notfinish theworkyet you know himsincethen haswaited haven tfinished Have known hurt has begun Has ridden has stayed bought hasn tread havelost bought 31 9 We be theremanytimesinthepast3years 10 Howlong you stay athomeyet 11 He notread thebookbefore I hear frommybrotherrecently Hersister go toChangchun She leave thismorning He live inhishometownsincehelefthere Thewriter finish severalstory bookssince1990 haveheard havebeen have stayed hasn tread hasgone left haslived hasfinished 32 PutthefollowingsentencesintoEnglish 1 你已经制作好生日贺卡了吗 makingthebirthdaycard 2 我已经吃过早饭了 现在一点也不饿 I breakfast andnowIamnothungryatall 3 你这周日准备做什么 还没决定 WhatareyougoingtodothisSunday I havealreadyeaten Haveyoufinished yet haven tdecidedyet 33 4 你读过 哈利 波特 这本书么 是的 我已经读过好多遍了 you thebookHarryPorter Yes I itseveraltimes 5 自从1978年以来 他一直住在这儿 He heresince1978 Haveread havealreadyread haslived 34 二 用法 以下两种情况应用现在完成时1 过去发生的动作或状态一直持续到现在 e g HehaslivedheresincehecametoNanjing 2 过去完成的动作 但强调这个过去完成的动作对现在有一定的影响或产生某种结果 e g Ihaveseenthatfilmalready IsawitinthepastandnowIcanstillremembersomethingaboutthefilm 35 一般过去时只用来表示过去发生了某事 并不能表明对现在产生了什么影响 e g Helosthismobilephoneyesterday 他昨天丢了手机 Wedon tknowwhetherhehasfounditornot Hehaslostmobilephonealready 他已经把手机丢失了 Hecan tuseitrightnow 36 三 判断方法 1 依据用法 结合句意判断 e g