Book2_U1_Grammarandusage2

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1、GrammarandusageUnit1Presentperfectorpresentperfectcontinuous?LiJia__________(read)abookaboutStonehenge.(Shefinishedreadingthebook.)LiJia______________(read)abookaboutStonehenge.(Sheisstillreadingthebook.)hasreadhasbeenreadingConclusion1:Weusethepresentperfecttensetotal

2、kaboutanactioncompletedintherecentpast,andthepresentperfectcontinuoustenseforanactionthatstartedinthepastandisstillcontinuing.overI___________(visit)Egypttwicethismonth.(repeatedactions)I________________(tour)Egyptfortwomonths.(non-stopaction)havevisitedhavebeentouring

3、Conclusion2:Wecanusethepresentperfecttenseforrepeatedactions,andthepresentperfectcontinuoustensefornon-stopactions.Howmanytimes_____you_____(swim)inthelake?Howlong_____you______________(swim)inthelake?haveswumhavebeenswimmingConclusion3:Weusuallyusethepresentperfectten

4、setoaskquestionsbeginningwithhowmanyorhowmuch,andthepresentperfectcontinuoustensetoaskquestionsbeginningwithhowlong.Ihavehadthiscameraforfiveyears.stateverbIhavetakenphotosofUFOswiththiscamera.IhavebeentakingphotosofUFOswiththiscamera.actionverbactionverb4.Wecanuseeith

5、erastateverboranactionverbwiththepresentperfecttensebutweusuallycanonlyuseanactionverbwiththepresentperfectcontinuoustense.5.Weusethepresentperfecttense,notthepresentperfectcontinuoustense,withthewordslikenever,yet,alreadyandever.()IhavenevervisitedAmerica.()Ihavealrea

6、dybeentoAmerica.()IhaveneverbeenvisitingAmericaTTFExerciseA:Readtheconversationandcircletherightwordstocompleteit.Answers:(1)heard(2)beendoing(3)beenresearching(4)beendoing(5)started(6)done(7)read(8)found(9)started(10)beendoing(11)beenmakingExerciseB:Trytoanswerthefoll

7、owingquestionsaccordingtothecomicstripSampleanswersofPartB1Hehasbeenwaitingatanunder-groundstation.2TheyhavebeentravelinginanUFO.Itlookslikeasaucer.3Theyprobablyhavetalkedtoanimalsorplantsontheearthaswellascreaturesonotherplants.4TheyhavevisitedMars,Venus,Jupiterandsom

8、eotherplanets.Gothroughwhatwelearnttodayandgetfamiliarwiththem.2.PrepareTask.Homework