高中英语 Book 6U1文化背景素材 牛津版选修6 VIP免费

1)askstudentshowmanypresenttensestheyhavelearnt.Havestudentsmakeasentenceforeachtenseandbrieflyexplainwhyacertaintenseisused;2)havestudentsreadpart1onpage8,whichshowsinwhattwosituationsthesimplepresenttenseisused.Askthemtopayattentiontothetimemarkersusedintheexamplesofthesecondsituation.Writedownthefollowingsentenceontheblackboardandaskstudentstoidentifywhattenseisused.Havethemgivethereasonwhythistenseisused.Thenaskthemtopointoutthetimemarkerinthesentenceifthereisone.Therearedifferentstylesofstand-upcomedy.(thesimplepresenttenseisusedinthissentence.Itshowswhatisalwaystrueaboutstand-upcomedy.Thereisnotimemarkerinthissentence.)Havestudentsmakesomesentencesusingthesimplepresenttenseinthesetwosituations.3)Askstudentstoreadpart2,whichshowswhenthepresentcontinuoustensecanbeused.Studentsshouldknowthatthepresentcontinuoustensecanalsousedtoshowwhatwillbedoneasplanned.Wecanusethetimemarkerswhichindicatethefuturetime,suchastomorrow,nextweekandnextmonth.Askstudentstopayspecialattentiontopoint3.tellthemwhenalwaysisusedwhenthepresentcontinuoustense,thespeakeriscomplainingaboutwhathashappenedandisstillhappening.Writedownthefollowingsentenceontheblackboardandaskstudentstoidentifywhattenseisused.Havethemgivethereasonwhythistenseisused.Thenaskthemtopointoutthetimemarkerinthesentenceifthereisone.Afamouscomedianiscomingtogiveperformanceinchinanextmonth.(inthissentence,thepresentcontinuoustenseindicatessomethingwillhappeninthefutureasplanned.Nextmonthisthetimemarkerinthissentence.)Askstudentstomakesomesentencesusingthepresentcontinuoustense.4)Askstudentstoreadpart3,whichshowswhentousethepresentperfecttense.Writedownthefollowingsentenceontheblackboardandaskstudentstoidentifywhattenseisused.Havethemgivethereasonwhythistenseisused.Thenaskthemtopointoutthetimemarkerinthesentenceifthereisone.Billycristalhashostedtheshoweighttimes.(inthissentence,thepresentperfectsentenceisusedtogivetheideathattheactionhosttheshowisrepeated.Thepresentperfecttenseisusedwhenwewanttoexpressthatanactionisrepeatedafewormanytimes.)5)看第四部分，什么情况下用现在完成进行时，并比较现在完成时和现在完成进行时。黑板上写下句子，学生判断时态，找出用相应时态的原因，找出时间标志。Ihavebeenplayingtenniseverydayforamonth.IdonotunderstandwhyIamnotlosingweight.用现在完成进行时表明动作一个月前已经发生，并持续到现在。这种时间标志多用于现在完成时，但强调动作持续发生，并将一直持续，用现在完成进行时。造句体会差别6）看第九页的文章完成练习A，点部分学生呈现答案，说出原因7）完成B部分练习，关注时间标志8）作业完成练习册102页练习C1和C2一般现在时用于经常发生或习惯或永久存在情况现在进行时目前情形例：MaLinglivesinshanghai,butsheislivinginbeijingatthemoment.一般现在时用于按预计时间安排将来行为，现在进行时计划将来发生行为IamleavingforshanghaithisMonday.Myplaneleavesat9inthemorning.现在进行时和always连用，表示经常出乎预料的或烦人的事发生，一般现在时和always连用经常，一直发生，没有特例。Constantly,continuallyandforever有相似意思。例：Ialwayshaveacupofcoffeeinthemorning,butIamalwaysforgettingtowashthecupafterwards.一些特殊动词如like,want,believe,contain,remember,guess,know,weighandthink不能用于进行时态。现在完成时和现在完成进行时的区别：现在完成时强调相对长的情形，指刚完成的行为或谈论行为的结果现在完成进行时强调相对短暂行为和情形，强调活动的持续。例：Ihavebeenreadingyourbook.目前未读完Ihavereadyourbook.读完Ithasbeenrainingforthreedays.三天前开始下雨，现在仍在下。Ithasjuststoppedraining.雨一刻钟前停了，现在不下了。