高中英语Unit4Usinglanguage学案必修.doc

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1、学习目标:1.Tobeabletoreadthepassagebyskimmingandscanning.2.Mastertheimportantwordsandexpressionsinthisperiod.重点:Beabletousetheimportantwordsandexpressionsinthisperiodflexibly.课前预习案PreviewingCase使用说明及学法指导：1.自我学习课本30-31页里的内容，完成预习案。2.完成时间25-30分钟。Task1Writedownthewords

2、andexpressionsaccordingtothefollowingChinesemeaning.I.单词巩固1.v.碰撞，坠落__________仍是，剩下___________允许___________减少，减轻__________浮动，漂浮____________2.n.生物学__________卫星___________物理学家____________拉力，牵引力_________重力_________气候__________宇宙飞船__________3.adj.极大的，强有力的___________

3、幸运的，好运的___________温和的；文雅的_________II.短语记忆1.挡住（光线）______________2.连锁反应_______________3.第一次____________________4.依靠，依赖于_______________5.感到高兴_______________6.既然____________________7.熟悉，掌握_______________8.爆发____________________Task2ReadthepassageonPage30-31andsumma

4、rizethemainidea:LastmonthIvisitedthemoonwithmyfriend.Beforeweleft,Iwastoldtheforceofwouldchangetimesonourjourney.Thenwetookoff.Aswelefttheearth,Ibecamevery,butgraduallytheweight.WhenIwasinspace,it.WeweightlesslyinthecabinandI.WhenIwasonthemoon,Iwassurprisedtofi

5、ndevenwalkingneedslotsofpracticegravityhaschanged.Returningtotheearthwasvery.Wewereamazedtowatchfireontheoutsideofthespaceship.课堂探究案ExploringCaseStep1:ReadingComprehensionⅠFastReadingMatchthethreewaysinwhichgravitychanged(1)LefttheearthA.Itbecameverylight.(2)In

6、spaceB.Thegravitybecameverystrong.(3)OnthemoonC.Thegravitydisappeared.Matchtheweightchanged(1)LefttheearthA.Heisweightless.(1)InspaceB.Heweighslessthanontheearth.(2)OnthemoonC.Hisweightisnormal.ⅡCarefulReadingReadthetextcarefullyandchoosethebestanswer:1.Thepass

7、ageismainlyabout____?A.introductionofthemoonB.thegravitythatIfeltonmywaytothemoonC.myvisittothemoonD.myfriendYanping,anAstronomer2.Accordingtothetext,weknowthattheforceofthegravitywouldchange_____times.A.2B.3C.4D.53.Whendidtheauthorfeelstrongestofthegravityofth

8、eearth?A.Onthemoon.B.Onthehalfwaytothemoon.C.AttheverybeginningD.Ontheirleavingfromthemoon4.Whatcausesthewritertofeelthathebecomesweightlessonthemoon?A.SpaceshipB.GravityC.H