高中英语 模块二 unit1 Grammar and usage 2课件 译林牛津版必修2.ppt

《高中英语 模块二 unit1 Grammar and usage 2课件 译林牛津版必修2.ppt》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、GrammarandusageUnit1Presentperfectorpresentcontinuous?Presentperfectorpresentperfectcontinuous?Weusethepresentperfecttensetotalkaboutanactioncompletedintherecentpast,andthepresentperfectcontinuoustenseforanactionthatstartedinthepastandisstillhappening.LiJia__________(read)abookaboutStonehenge.

2、(Shefinishedreadingthebook.)LiJia______________(read)abookaboutStonehenge.(Sheisstillreadingthebook.)hasreadhasbeenreading2.Wecanusethepresentperfecttenseforrepeatedactions,andthepresentperfectcontinuoustensefornon-stopactions.I___________(visit)Egypttwicethismonth.(repeatedactions)I__________

3、______(tour)Egyptfortwomonths.(non-stopaction)havevisitedhavebeentouring3.Weusuallyusethepresentperfecttensetoaskquestionsbeginningwithhowmanyorhowmuch,andthepresentperfectcontinuoustensetoaskquestionsbeginningwithhowlong.Howmanytimes_____you_____(swim)inthelake?Howlong_____you______________(s

4、wim)inthelake?haveswumhavebeenswimming4.Wecanuseeitherastateverboranactionverbwiththepresentperfecttensebutweusuallycanonlyuseanactionverbwiththepresentperfectcontinuoustense.Ihavehadthiscameraforfiveyears.stateverbIhavetakenphotosofUFOswiththiscamera.IhavebeentakingphotosofUFOswiththiscamera.

5、actionverbactionverb5.Weusethepresentperfecttense,notthepresentperfectcontinuoustense,withthewordslikenever,yet,alreadyandever.()IhavenevervisitedAmerica.()IhavealreadybeentoAmerica.()IhaveneverbeenvisitingAmericaTTFExerciseA:Readtheconversationandcircletherightwordstocompleteit.Answers:(1)hea

6、rd(2)beendoing(3)beenresearching(4)beendoing(5)started(6)done(7)read(8)found(9)started(10)beendoing(11)beenmakingWheredoyouthinktheboyhasbeenwaiting?Whathavethealiensbeentravellingin?Whatdoesitlooklike?Whoelsehavethealienstalkedto?Whatotherplanetshavethealiensvisited?ExerciseB:Trytoanswerthefo

7、llowingquestionsaccordingtothecomicstripSampleanswersofPartB1Hehasbeenwaitingatanunder-groundstation.2TheyhavebeentravelinginanUFO.Itlookslikeasaucer.3Theyprobablyhavetalkedtoanimalsorplantsontheearthaswellascreaturesonotherplants.4They