【文档说明】Unit2__Topic1__SectionA__精品课件-九年级上册英语【仁爱版】.ppt，共(20)页，11.892 MB，由小喜鸽上传

转载请保留链接：https://www.ichengzhen.cn/view-104610.html

以下为本文档部分文字说明：

Unit2SavingtheEarthTopic2Alltheseproblemsareveryserious.SectionApollutionmanytreescutdownforestsgonewashtheearthaway冲走c

hangeintodesert转换成，变成沙漠e.g.Alotofrichlandhaschangedintodesertbecausepeoplehavecutdowntoomanytrees.sandstormscomeinto

beingn.沙尘暴Theboyandgirlsaretalkingabout—————.A.differenttypesofsandstormsB.thereasonsforsandstormsC.sa

ndstormsindifferentcities1bListento1aandchoosethebestanswer.Focusonthemainideaoftheconversationwhenyoulistenfo

rthefirsttime.√Listenandanswerthequestions1.What’stheweatherliketoday?It’sbad.Thewindissostrong.Andthesan

dreallyhurtsface.2.Whatcausesthesesandstorms?Peoplehavecutdowntoomanytrees.Asaresult,alotofrichlandhaschangedintodesert.

3.Dowestillneedtodosomethingtoprotecttheenvironment?Yes,wedo.Althoughwehavebuilt“TheGreenGreatWall”,westillneedtodosomethingtoprot

ecttheenvironment.conj.虽然，尽管，即使n.沙somebody,someone,something,somewhereanybody,anyone,anything,anywherenone,nobody,nothing,nowhereeverybody,ev

eryone,everything,everywhere一般情况下用于肯定句一般情况下用于否定句和疑问句表否定含义可用于各种句式theindefinitepronounandadverb1.Ihave____totellyou.A.importants

omethingB.somethingimportantB形容词修饰不定代词和不定副词时，要放在不定代词/不定副词之后Doyouknow?2.Everybody___readyforthematch.A.isB.areA不定代词作主语时，谓语动词要用单数。1cRead1aa

ndcompletetrees’functions.A.Treescanstopthewindfromblowingtheearthaway.B.Alotofwatercanbesavedbyforests.C.Theycanalsostopthewa

terfromwashingtheearthaway.Tree’sfunctionsK:wind;sand;anythingM:sandstormsJ:cutdown;asaresult;changeintoM:aff

ectJ:stop…from…;blow…awayK:canbesavedJ:wash…awayK:isharmfulto;although;dosomethingActoutthedialoginpairs2Completethe

sentenceswiththecorrectformsofthegivenphrasesinthebox.asaresult,changeinto,dosomething,stop…from,blow…away1.People

havecutdownsuchalargenumberoftreesthattheland_____________________desert.2.Therearefewertreesleft,sothewindalways_______theearth________.3

.Airpollutionhasbecomeaseriousproblem,sowemust______________toreduceit.4.weshouldtryourbestto_________people__

______cuttingdownthetrees.5.Inthefuture,humanbeingscanprotectthetreeswell._____________,animalswillliveahappylifeintheforest.haschangedintoblowsawa

ydosomethingstopfromAsaresult3Doyouknowhowsandstormscomeintobeing?Numberthepicturesandtalkaboutthesandstor

mingroups.()()()()()()415362washtheearthawaymanytreeschangeintodesertforestsgonesandstormscomeintobeingcutdowntrees4A.Listentothepassageandcircle

thephrasesyouhear.•becomeweaker•destroytheenvironment•disappearrapidly•ontheearth•enoughbambootoeat4B.Listenagainandfillintheblanks.1

.Nowsomekindsofanimalsarebecoming___________________.2.Someanimalsare_______________dyingoutcompletely.3.Inthepast,pandaslivedaquietlifean

dhad______________food.4.Humanshave____________________theimportanceofprotectinganimals.5.Weshould________________toprote

ctthem.doourbestindangerofplentyofcometounderstandfewerandfewer1.Lily,wouldyoulike___________todrink?2.Cindyisverybusynow.Sheneeds___

____tohelpher.3.Isthere_________wrongwithyourcomputer?4.Jimlookedforhispencil-box____________,buthedidn’tfindit.5.Istayedathomelastweek.Ididn’tgo____

______.Usesomeone,something,anything,somewhere,anywheretofillintheblanks.somethingsomeoneanythingsomewhereanywhereW

elearn:1.Somewords:sand,although2.Somephrases:changeinto,humanbeing3.Somesentences:(1)Asaresult,alotofrichlandhaschangedi

ntodesert.(2)Treescanstopthewindfromblowingtheearthaway.Wecan:1.Usetheindefinitepronounandadverb.2.Talkaboutthesandstormanditsharm.Summary1.Read1a

.2.Memorizetheusefulexpressionsandkeysentenceswhichwelearntoday.3.FinishSectionAinyourworkbook.4.PreviewSectionB.