外研版英语必修1module5 reading课件(修改后).ppt

《外研版英语必修1module5 reading课件(修改后).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、Module5AlessoninalabReadthepassageasquicklyasyoucanandchoosethebesttitleforit.TheDifferentUsesofMetalsTheReactionofMetalsTheReactionofMetalswithOxygenPassageAReadthepassageagainandanswerthefollowingquestions:1.Whichofthemetalsinthetablereactsthemostwithoxygenandwater?potassium,calciumandsodium2.What

2、happenswhenyouheatcalciuminoxygen?Itbeginstoformanoxide.3.Whichmetalsreactwithsteam?Magnesium,aluminiumandzinc4.Doesironhaveasloworfastreactionwithsteam?Ithasaslowreaction.5.Doescopperreactwithwater?No,itdoesn’t.Readthepassagecarefullyandfillthechartonpage45.Readthepassageagainandcompletethesentence

3、s.PassageB1.Inthefirstpartoftheexperiment,the__isdry,notwet.2.Itshowsthatiron___________whentheairisdry.3.Inthesecondpartoftheexperiment,youmust___thewatertomakesurethereisno__init.airdoesnotrustboilair4.Youadd_______tothewaterbecausethiskeeps__outofit.5.Itshowsthat___doesnotrustinwaterthathasno__in

4、it.someoilairnailairLearnthenewwordsbyheart.ReadthepassageAandBandtrytoretellit.Assignmentsforyou(languagepoints)镜头再现Theearthisforty-ninetimeslargerthanthemoon.ThemorebooksIread,themoreinformationIlearn.上面两个句子中重点强调的是比较级。这一语法现象我们在初中已学过,现在我们对这一语法进行总结。三种比较句型的转换：1)A+be+倍数+times+比较级＋than+B2)A+be+倍数+times

5、+as+adj/adv+as+B3)A+be+倍数+times+the+NofBThewellisfourtimesdeeperthanthatone.=Thewellisfourtimesasdeepasthatone.=Thewellisfourtimesthedepthofthatone.哪一些词可以来修饰比较级？1)much/rather/abit/alittle/alot/agreatdeal/any/…2)倍数、分数、百分数、小数3)一些名词1.TheweatherinwinterinBeijingismuchcolderthanthatinShanghai.2.Thisbooki

6、s50%moreexpensivethanthatone.3.JohnisaheadtallerthanI.一个固定句型:the+比较级,the+比较级Themoreoftenyoustaywithhim,thebetteryouwillfindheis.Thefasterwewalk,themorelikelywewillbetocatchthebus.Themore,thebetter.Thesooner,thebetter.1.Thatdoesn’tsoundveryfrightening,Paul.I’veseen_______.Whatdidyoulikemostaboutthefi

7、lm?A.betterB.worseC.bestD.worstChoosethebest2.Thenumberofpeoplepresentattheconcertwas_______thanexpected.Thereweremanyticketsleft.A.muchsmallerB.muchmoreC.muchlargerD.manymore3.HespeaksEnglishwellinde