仁爱版英语八年级上册-Unit4-Topic1-SectionCppt课件

.,Unit4OurWorld,Topic1Whatsthestrongestanimalonthefarm?SectionCByMissLee,.,Lookatthepictures:,Doyouknowwhattheyare?,.,Learningaims:,1.Learnsomenewwordsandnewphrases:cover,thousandsof,playanimportantrolein(doing)sth.2.Learnsomeusefulsentences:Rainforestsareveryimportanttous./Withoutrainforests,manybeautifulplantsandanimalswoulddieout3.Goonlearningthecomparativeandsuperlativedegreesofadjectives;Teachingkeypoint4.Describenaturalresourcesandrealizetheimportanceofenvironmentprotection.Teachingdifficultpoint,.,Lookandguess!,Lookatthepicturesandcheckwhichquestionsthepassagecananswer.Thencheckyourguess.,.,Whatarerainforests?Howmanyanimalsarelivinginrainforests?Wheredoanimalsliveinrainforests?Whatcanwegetfromrainforests?Whyarerainforestsimportanttous?,.,Watchtheflashof1a，knowsomethingaboutrainforests.Youshouldunderlinethekeywords,phrasesandsentences.,1a,.,Learningaims:,1.Learnsomenewwordsandphrases:cover,thousandsof,playanimportantpartin2.Learnsomeusefulsentences:Rainforestsareveryimportanttous.Withoutrainforests,manybeautifulplantsandanimalswoulddieout3.Goonlearningthecomparativeandsuperlativedegreesofadjectives;(Importantpoint)4.Describenaturalresourcesandrealizetheimportanceofenvironmentprotection.(Difficultpoint),rainforestsintheworld,Rainforestscover(=spreadover)6%oftheearthssurface.,.,Thousandsandthousandsofanimalsliveinrainforests.Manyofthemliveinthetreesover30metersfromtheground.,.,1.thousandsof成千上万的（数以千计的）类似的表达方式：hundredsof成百上千的（数以百计的）millionsof数以百万计的注意：表达具体数字时不可使用s形式。如：两百本书twohundredbooks用复数形式时常跟of如：数百本书hundredsofbooks,Languagepoints,.,Languagepoints,2.Theyplayanimportantpartincontrollingtheclimate.,注：playanimportantpartin在.中扮演重要的角色,Friendsplayanimportantpartinourlife.,翻译：朋友在我们的生活中扮演着重要的角色.,.,3.Butnow,rainforestsarebecomingsmallerandsmaller,1.smallerandsmaller越来越小比较级+and+比较级越来越如：Theweatheriscolderandcolder2.注意：多音节形容词在表示“越来越”时，常用结构是：moreandmore+形容词原形如：越来越漂亮moreandmorebeautiful,.,Listento1aandcompletethetable.Thencheckwithyourpartner.,hot,wet,dark,hot,6%,surface,plants,animals,fresher,cleaner,hold,cycling,climate,nature,wood,food,medicine,1b,.,Designofthepassage,.,1c,Read1aagainandanswerthequestions.,Whatdoestheword“cover”meaninParagraph1?2.Whyarerainforeststhelungsoftheearth?,Itmeans“覆盖”.,Becausetheplantsintheforestshelptomaketheairfresherandcleaner.,.,1c,Readagainandanswerthequestions.,3.Whyshouldweprotectrainforestswell?4.Canyouguesswhatthenextpartofthepassagewilltalkabout?,Becausetheyhelptoholdthewaterandkeepthewatercycling.Theyplayanimportantpartincontrollingtheclimate.,Yes.Thenextpartmaytalkaboutwhatweshoulddotoprotectrainforests.,.,Groupwork,Discussthepicturesingroupsabouthowtoprotectrainforests.,showandtellpeopleabout,.,doanythingwecan，suchas,.,askpeoplenotto,.,askpeoplenottocut,.,1.Learntodescribethesituationofrainforestsandtheimportancetotheearth.2.Talkabouthowtoprotectrainforests.3.usefulphrases:thousandsofcontroltheclimateplayanimportantpartin(doing)sth.smallerandsmaller,summary,.,Feedback&Consolidation,1.Thereareabout_studentsinourschool.A.threethousandB.threethousandsC.threethousandof2.Assummeriscoming,thedayisbecoming_.A.longandlongB.longerandlongerC.colderandcolder3.Weshouldplantmoretreesbecausetheyplayanimportant_inprotectingtheenvironment.A.partB.gameC.tapeD.sportAreyouright?,.,Homework,Writeashort