八年级英语下册《unit 3 online tours grammar》教案 （新版）牛津版

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1、OnlinetoursGrammarTeachingaims:1.Tounderstandthedifferencesbetweenthesimplepasttenseandthepresentperfecttense.2.Tograsptheexpressionswiththepresentperfecttense.3.Tograsptheexpressionswiththesimplepasttense.4.Tounderstanddifferentusesofthepresentperfecttense.Teac

2、hingSteps:Step1Revision完成句子。1.北京因万里长城而著名。Beijing_____________theGreatWall.2.这条河是个钓鱼的好地方。Thisriverisa__________________fishing.3.我三天前听说过这件事。I_____________this_______________.4.自从2000年起，他就在上海工作了。He__________inShanghai______2000.Step2PresatationTeachthenewwords.dre

3、amvi.&vt.做梦，梦想dreamabout/of想象；梦想e.g.Doyouoftendreamatnight?你在夜里经常做梦吗？Isometimesdreamaboutmyparents.我有时梦见我的父母。Idreamofbecomingateacher.我一心想当个教师。Step3GrammarexplanationTranslatesomesentences.Daniel两年前去了北京。(DanielwenttoBeijingtwoyearsago.)Daniel已经在北京居住两年了。(Danielha

4、slivedinBeijingfortwoyears.)Tellthestudentsthedifferencebetweenthesimplepasttenseandthepresentperfecttense.Difference:Weusesimplepasttensetotellwhathappenedinthepast.Weusethepresentperfecttensetotalkaboutanactionthatstartedinthepastandcontinuestothepresent.Exerc

5、ises:1.三年前他养了只猫做宠物。He______acataspetthreeyearsago.2.这只宠物猫他养了三年了。He_________thepetcatforthreeyears.Daniel上个月买了台新电脑。Danielboughtanewcomputerlastmonth.Daniel已经买了台新电脑。Danielhasboughtanewcomputer.(Danielhasanewcomputernow.)Differences:Weusethesimplepasttensetotellwha

6、thappenedinthepast.Weusethepresentperfecttensetotalkabouttheresultofanaction.Whentheactionhappenedisnotveryimportant.Itmayhavejusthappenedorhappenedsometimeago.Exercises:1.我上个星期去参观了那个新动物园。I_______thatnewzoolastweek.2.我已经参观过那个新动物园了。I______________thatnewzoo.吴老师20

7、10年和2011年访问过加拿大。MrWuvisitedCanadain2010and2011.吴老师已经去过加拿大两次。MrWuhasbeentoCanadatwice.Differences:Weusethesimplepasttensetotellwhathappenedinthepast.Weusethepresentperfecttensetotellhowmanytimesanactionhashappenedtillnow.Exercises:1.我上周看过这部电影。I_____thismovielastw

8、eek.2.我已经看过这部电影很多次。I__________thismoviemanytimes.Step4ExercisesA.AmyisshowingMilliesomepictures.Completehersentenceswiththecorrectformsofthewordsinbrackets.I_______(v