Unit8SectionAGrammarFocus-4c课件人教版八年级英语下册

Unit8

HaveyoureadTreasureIslandyetGrammarFocus4a-4cLearningobjects（学习目标）By

the

end

of

the

class,youwillbeableto:1.Learnthefollowingkeywordsandphrases:fiction,sciencefiction,technology,French2.Masterthepresentperfecttense.3.Improvestudents’abilitytousethetargetlanguage.HaveyoureadLittleWomenyet?Yes,Ihave./No,Ihaven’t.HasTinaread

TreasureIslandyet?Yes,shehas.Shethinksit’sfantastic.Haveyoudecidedwhichbooktowriteaboutyet?Yes,Ihave.I’vealreadyfinishedreadingit.Itwasreallygood.GrammarFocusReadeachsentenceandfindoutwhattheyhaveincommon.现在完成时1.表示过去发生或已经完成的动作对现在造成的影响或结果。常与just(刚才),already,yet,never,ever,sofar等时间状语连用。一、现在完成时的用法①HaveyoureadLittleWomenyetYes,Ihave.I’vejusthadit.(现在不饿了)②Ihavealreadyreadthebook.(已了解书的内容)例句2.表示从过去某一时间开始一直持续到现在的动作

或状态，并有可能持续下去。常和for或since引

导的时间状语连用。①Wehavebeengoodfriendssinceweweresixyearsold.②Ihavelivedherefor20years.(还可能继续住下去)例句二、already与yet在现在完成时中的用法1.already意为“已经”，常用于肯定句中，放在助动词

have/has之后，过去分词之前。2.yet用于疑问句或否定句中，放在句末。用于疑问句中，意为“已经”；用于否定句中，意为“还（未）；尚（未）”。Ginahasalreadyreadthisbook.例句①Hasyourfathereatendinneryet②Ihaven’tseenthefilmyet.例句句式结构肯定句否定句一般疑问句特殊疑问句主语+have/has+过去分词+其他.主语+have/hasnot+过去分词+其他.Have/Has+主语+过去分词+其他特殊疑问词+have/has+主语+过去分词+其他havenot=haven't;hasnot=hasn't三、现在完成时的句型结构have/has可与主语缩写在一起，分别是´ve和´sIhave=I´vehehas=he´s

现在完成时

一般过去时用法时间状语谓语动词表示过去发生的动作对现在造成的影响，侧重于现在的情况。表示过去某个时候发生的动作或存在的状态，与现在无关。常和already,yet,just,ever,never,before,since,

for+段时间,sofar等连用。常和yesterday,lastweek,justnow,in2012,twodaysago等具体的表示过去的时间状语连用。与一段时间连用时，谓语动词要用延续性动词而不用非延续性动词。谓语动词没有延续性或非延续性动词的限制。四、动词过去分词形式的变化规则动词过去分词的规则变化：________________________stay→_______→_______work→_______→_______taste→_______→_______like→_______→_______study→_______→_______copy→_______→_______stop→_______→_______plan→_______→_______stayedstayedworkedworkedtastedtastedlikedlikedstudiedstudiedcopiedcopiedstoppedstopped与该动词的过去式相同一般情况下直接+ed以不发音e结尾的直接+dplannedplanned以辅音字母+y结尾的，把y变i再+ed以重读闭音节“辅元辅”结构结尾的，双写尾字母，再+ed________________________________cut→_______→_______cost→_______→_______hit→_______→_______put→_______→_______

read→_______→_______hurt

→________→________

cutcutcostcosthithitputputreadreadhurthurt与该动词的原形及过去式相同AAA型动词过去分词的不规则变化：_________________________________become→_______→_______come→_______→_______run→_______→_______

becamebecomecamecomeranrun与该动词的原形相同ABA型动词过去分词的不规则变化：_______________________meet→_______→_______keep→_______→_______sleep→_______→_______make→_______→_______bring→_______→_______buy→_______→_______think

→________→________

teach→________→________metmetkeptkeptsleptsleptmademadebroughtbroughtboughtboughtthoughtthoughttaughttaught与该动词的过去式相同ABB型动词过去分词的不规则变化________________________begin→_______→_______speak→_______→_______choose→_______→_______forget→_______→_______drive→_______→_______write→_______→_______break

→_______→_______

eat→_______→________beganbegunspokespokenchosechosenforgotforgottendrovedrivenwrotewrittenbrokebrokenateeaten原形与过去式都不同ABC型feel→_______→_______keep→_______→_______sleep→_______→_______feltfeltkeptkeptsleptslept动词中间有俩e，去掉一个（e），后加tlend→_______→_______build→_______→_______send→_______→_______buy→_______→_______bring→_______→_______catch→_______→_______teach→_______→_______lentlentbuiltbuilt动词字母d变t.变为以-ought或-aught结尾.boughtboughtbroughtbroughtsentsentcaughtcaughttaughttaughtsee-saw-seen;be-was/were-beeneat-ate-eaten;break-broke-brokengo-went-gone;take-took-takensend-sent-sent;find-found-foundmake-made-made;have-had-had一、适当形式填空1.I________(join)thebookclublastmonthandI__________(read)fivebooksalready.2.Ionly_________(start)takingFrenchclasseslastweekandI____________(learn)50Frenchwordsalready.joinedhavereadstartedhavelearntTip:Findthekeywordstoidentifywhichtensetouse.即时演练3.Tony__________(buy)apopmusicCDyesterdaybuthe______________(listen)toityet.4.They_______________(listen)tomanysongsbyTheBeatles,buttheycannot______(sing)anyofthem.5.She_________(see)thenewspaperonthetablethismorning,butshe__________(have)anytimetoreadityet.boughthasn'tlistenedhavelistenedsingsawhasn'thadTask2:Fillintheblankswiththecorrectformsofthewordsinbrackets.二、句型转换。1.Hehasalreadyhadbreakfast.(改为否定句)He__________breakfast___.2.Ihavedonemyhomeworkalready.(改为一般疑问句)__________doneyourhomework____3.Theoldmanhaslivedhereforfortyyears.(对画线部分提问)_____________theoldman_____herehasn’thadyetHaveyouHowlonghaslivedyetUsethewordsinbracketstocompletetheconversations.4a1.A:WouldyoulikesomethingtodrinkB:No,thanks._________________________.(just/drinksometea)2.A:Iheardyoulostyourkey.________________(find)B:No,notyet.I’vejustdrunksometeaHaveyoufoundit4.A:IsyoursistergoingtothemovieswithustonightB:No.__________________________.(already/seethefilm)5.A:WhatdoyourparentsthinkaboutourplanB:I___________________.(not/tellthem/yet)haven’ttoldthemyetShehasalreadyseenthefilm3.A:DoyouknowwhenTomisleavingB:_________________.(already/leave)A:When___________(leave)B:Thismorning.HehasalreadyleftdidheleaveFillintheblankswiththecorrectformsofthewordsinbrackets.4bSally_____(love)reading.Inthemorning,shereadsthenewspaperandintheeveningshereadsbooks.She______already_____(read)morethan100differentbooks!Herfavoritekindofbooksissciencefiction.Sheisinterestedinscienceandloveshasreadfiction强调虚构、科幻的故事，不论长短。novel指有情节、人物、对白，虚构的长篇小说。technologyandlovestoimaginewhattheworld______(be)likein50years.She_______(finish)readingabookaboutrobotslastweekand_________(write)abookreportaboutitnextweekforherFrenchclass.Everytimesheisinthelibrary,Sallylooksattheman