Unit8SectionAGrammarfocus4c课件人教版八年级英语下册

Unit8HaveyoureadTreasureIslandyet?SectionAGrammarFocus-4cLearningaims:1.掌握本课时单词及短语：

sciencefiction;technology;French;can'twaittodosth2.现在完成时的构成及用法。3.现在完成时与一般过去时的区别。arriveonthisislandmakeaboatbringbackgiveupwaitforcutdownbuildahouse到达这个岛制作一只船带回来放弃等候砍倒建房子Revisionkill…forfoodthemarksofanotherman’sfeetwhoelseseesb.doingsth.runtowardshelpsb.dosth.namesb.…teachsb.sth.杀死……作为食物另一个人的脚印还有谁看见某人正在做某事朝……跑帮助某人做某事给某人起名为……教某人某事GrammarFocusHaveyoureadLittleWomenyet?Yes,Ihave./No,Ihaven't.HasTinareadTreasureIslandyet?Yes,shehas.Shethinksit'sfantastic.Haveyoudecidedwhichbooktowriteaboutyet?Yes,Ihave.I'vealreadyfinishedreadingit.Itwasreallygood.Tip1:payattentiontothekeywords.Tip2:payattentiontothestructures.用法

1:

表示过去发生或已经完成的某一动作对现在造成的影响或结果。常跟already,yet,just,ever,never,before，sofar（到目前为止）等时间状语现在完成时构成：have/has+v过去分词havebreakfastI’mnothungrynownowpastIhavealreadyhadbreakfast.e.g.I’veknownBobforthreeyears.Ihaven’tseenhersincelastyear.2.表示动作或状态从过去某一时刻开始，一直延续到现在，而且可能还要继续下去。常跟for,since引导的时间状语

用already或yet填空：

–Havetheytakendowntheoldpictures______? –No,not_____.Mostofushave_________finishedourcompositions.3)Hesaidhehadn’tvisitedthemuseum______.

活学活用yetyetalreadyyet用since或for填空：Wehavelearnedfivelessons_______thebeginningofthisterm.Mrs.Liaohasbeeninhospital_______lastweek.Ihavestayedatmyaunt’s_______twoweeks.

sinceforsince活学活用现在完成时与一般过去式的区别现在完成时用来表示之前已发生或完成的动作或状态，其结果的确和现在有联系，动作或状态发生在过去，但它的影响现在还存在；而一般过去时表示过去的事实，不表示和现在的关系。

2.现在完成时为过去发生的，强调过去的事情对现在的影响，强调的是影响；过去时表示过去某时发生的动作或单纯叙述过去的事情，强调动作。1.A:Wouldyoulikesomethingtodrink?B:No,thanks.______________________.(just/drinksometea)2.A:Iheardyoulostyourkey.____________________?(find)B:No,notyet.3.A:DoyouknowwhenTomisleaving?B:____________________.(already/leave)A:When______________?(leave)B:Thismorning.I’vejustdrunksometeaHaveyoufoundityetHehasalreadyleftdid

heleave4a4.A:Isyoursistergoingtothemovieswithustonight?B:No.__________________________.(already/seethefilm)5.A:Whatdoyourparentsthinkaboutourplan?B:I_________________________.(not/tellthem/yet)Shehas

alreadyseenthefilmhaven’ttoldthemyetSally_______(love)reading.Inthemorning,shereadsthenewspaperandintheeveningshereadsbooks.She_____already______(read)morethan100differentbooks!Herfavoritekindofbookissciencefiction.Sheisinterestedinscienceandtechnologyandlovestoimaginewhattheworld_________(be)likein50years.She__________(finish)readingabookaboutrobotslastweekand___________(write)abookreportaboutitnextweekforherFrenchclass.Everytimesheisinthelibrary,Sallylooksatthemanybooksshe____________(notread)yetandshecan’twaittoreadthem!loveshasreadwill

befinishedwill

writehasn’t

read4b构成及规律现在完成时是由“助动词have/has+动词的过去分词”构成的，规则动词的过去分词构成与过去式相同，不规则动词的过去分词则需逐个记忆。（课本p136-p137）基本句型肯定句否定句一般疑问句特殊疑问句1.I’vealreadyfinishedreadingit.2.Ihaven’tfinishedreadingityet.3.HaveyoureadLittleWomenyet?4.WhohavereadLittleWomenyet?主语+have/has+过去分词+其他主语++haven’t/hasn’t+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？2分/空()—DoyouknowthemovieLostinThailand?—Yes.I______ittwice.It’sfunny.A.sawB.seeC.haveseenD.willseeC中考链接()—Lunch?—No,thanks.I__________.A.willeatB.ameatingC.haveeaten()—WhereisTom?Wecan’tfindhimanywhere.—Perhapshe_____home.A.hascomeB.isgoingC.wentD.wasgoingCA1.I________heardofthatstorybefore.A.don’thaveB.nothaveC.havenotD.nottohave2.Haveyoumadedumplings__________?No,Ihaven’t.A.justnowB.yesterdayC.agoD.before3.Tom________illsincelastnight.A.wasB.isC.hasbeenD.be4.Howlonghaveyou_________Nanjing?A.gonetoB.beentoC.beeninD.wenttoCDCCExercise7.I’ve______thisdictionaryforhalfayear.A.boughtB.hadC.lendedD.borrowed8.Shewon’tgotothecinemathiseveningbecauseshe________thefilmbefore.A.hasseenB.sawC.seesD.isseeing