【文档说明】《Unit 2 Topic 2 All these problems are very serious》PPT课件5-九年级上册英语仁爱（科普版）.ppt，共(23)页，8.669 MB，由小喜鸽上传

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Unit2SavingtheEarthTopic2Alltheseproblemsareveryserious.SectionAmanytreesHumanbeingcutdownforestsgonewashtheearthaway冲

走changeintodesert转换成，变成沙漠e.g.Alotofrichlandhaschangedintodesertbecausepeoplehavecutdowntoomanytrees.sandstormscomeintobeingn.沙尘暴Th

eboyandgirlsaretalkingabout—————.A.differenttypesofsandstormsB.thereasonsforsandstormsC.sandstormsin

differentcities1bListento1aandchoosethebestanswer.Focusonthemainideaoftheconversationwhenyoulistenforthefirsttime.√Readandans

werthequestions1.What’stheweatherliketoday?It’sbad.Thewindissostrong.Andthesandreallyhurtsface.2.Whatcaus

esthesesandstorms?Peoplehavecutdowntoomanytrees.Asaresult,alotofrichlandhaschangedintodesert.3.Dowestillnee

dtodosomethingtoprotecttheenvironment?Yes,wedo.Althoughwehavebuilt“TheGreenGreatWall”,westillneedtodosomethingtoprotecttheenvironment.conj.虽然，尽管

，即使n.沙Focalpoints1.Asaresult,alotofrichlandhaschangedintodesert.2.Treescanstopthewindfromblowingtheearthaway.Stopsb/sthfromdoing

sthblow…..away3.Cuttingdowntreesisharmfultohumanbeing.4.不定代词用法somebody,someone,something,somewhereanybody,anyone,anything,anywherenone

,nobody,nothing,nowhereeverybody,everyone,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theindefinitepr

onounandadverb1.Ihave____totellyou.A.importantsomethingB.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___read

yforthematch.A.isB.areA不定代词作主语时，谓语动词要用单数。1cRead1aandcompletetrees’functions.A.Treescanstopthewindfromblowingthee

arthaway.B.Alotofwatercanbesavedbyforests.C.Theycanalsostopthewaterfromwashingtheearthaway.Tree’sfunctions3Doyouknowhowsandstormscomeintobe

ing?Numberthepicturesandtalkaboutthesandstormingroups.()()()()()()415362washtheearthawaymanytreeschang

eintodesertforestsgonesandstormscomeintobeingcutdowntreesK:wind;sand;anythingM:sandstormsJ:cutdown;asaresult;changeintoM:affectJ:stop…from…;blow…a

wayK:canbesavedJ:wash…awayK:isharmfulto;although;dosomethingActoutthedialoginpairs2Completethesentenceswit

hthecorrectformsofthegivenphrasesinthebox.asaresult,changeinto,dosomething,stop…from,blow…away1.Peoplehavecutdownsuchalargenumberoftrees

thattheland_____________________desert.2.Therearefewertreesleft,sothewindalways_______theearth________.3.Airpollutionhasbecomeaseriousproblem,sowemus

t______________toreduceit.4.weshouldtryourbestto_________people________cuttingdownthetrees.5.Inthefuture,humanbeingscanprotectthetree

swell._____________,animalswillliveahappylifeintheforest.haschangedintoblowsawaydosomethingstopfromAsaresult1.Lily,wo

uldyoulike___________todrink?2.Cindyisverybusynow.Sheneeds_______tohelpher.3.Isthere_________wrongwithyourcomputer?4.Jimlookedforhispencil-box___

_________,buthedidn’tfindit.5.Istayedathomelastweek.Ididn’tgo__________.Usesomeone,something,anything,somewhere,anywheretofi

llintheblanks.somethingsomeoneanythingsomewhereanywhereWelearn:1.Somewords:sand,although2.Somephrases:c

hangeinto,humanbeing3.Somesentences:(1)Asaresult,alotofrichlandhaschangedintodesert.(2)Treescanstopthewi

ndfromblowingtheearthaway.Wecan:1.Usetheindefinitepronounandadverb.2.Talkaboutthesandstormanditsharm.Summary1.Read1a.2.Memori

zetheusefulexpressionsandkeysentenceswhichwelearntoday.3.FinishSectionAinyourworkbook.4.PreviewSectionB.Bo

ysandgirls,let’sloveourearthandtraveltogether!Thankyou!