【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

转载请保留链接：https://www.ichengzhen.cn/view-105151.html

以下为本文档部分文字说明：

Unit2SavingtheEarthTopic2Alltheseproblemsareveryserious.SectionAmanytreesHumanbeingcutdownforestsgonewashtheearthaway冲走changeinto

desert转换成，变成沙漠e.g.Alotofrichlandhaschangedintodesertbecausepeoplehavecutdowntoomanytrees.sandstormscomeintobeingn.沙尘暴Theboyandg

irlsaretalkingabout—————.A.differenttypesofsandstormsB.thereasonsforsandstormsC.sandstormsindifferentcities1bListento1aandchooseth

ebestanswer.Focusonthemainideaoftheconversationwhenyoulistenforthefirsttime.√Readandanswerthequestions1.What’stheweatherliketoday?It’sbad.Thewind

issostrong.Andthesandreallyhurtsface.2.Whatcausesthesesandstorms?Peoplehavecutdowntoomanytrees.Asaresult,alotofrichlandhaschangedintodese

rt.3.Dowestillneedtodosomethingtoprotecttheenvironment?Yes,wedo.Althoughwehavebuilt“TheGreenGreatWall”,w

estillneedtodosomethingtoprotecttheenvironment.conj.虽然，尽管，即使n.沙Focalpoints1.Asaresult,alotofrichlandhaschangedintodesert.2

.Treescanstopthewindfromblowingtheearthaway.Stopsb/sthfromdoingsthblow…..away3.Cuttingdowntreesisharmfultohumanbeing.4.不定代词用法so

mebody,someone,something,somewhereanybody,anyone,anything,anywherenone,nobody,nothing,nowhereeverybo

dy,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theindefinitepronounandadverb1.Ihave____totelly

ou.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___readyforthematch.A.isB.areA不定代词作主语时，谓语动词要用单数。1cRe

ad1aandcompletetrees’functions.A.Treescanstopthewindfromblowingtheearthaway.B.Alotofwatercanbesavedbyforests.C.They

canalsostopthewaterfromwashingtheearthaway.Tree’sfunctions3Doyouknowhowsandstormscomeintobeing?Numberthepicturesandtalka

boutthesandstormingroups.()()()()()()415362washtheearthawaymanytreeschangeintodesertforestsgonesandstormscomeintobeingcutdow

ntreesK:wind;sand;anythingM:sandstormsJ:cutdown;asaresult;changeintoM:affectJ:stop…from…;blow…awayK:canbesavedJ:wash…awayK:ishar

mfulto;although;dosomethingActoutthedialoginpairs2Completethesentenceswiththecorrectformsofthegivenphras

esinthebox.asaresult,changeinto,dosomething,stop…from,blow…away1.Peoplehavecutdownsuchalargenumberoftreesthattheland___________

__________desert.2.Therearefewertreesleft,sothewindalways_______theearth________.3.Airpollutionhasbecomeaseriousp

roblem,sowemust______________toreduceit.4.weshouldtryourbestto_________people________cuttingdownthetrees.5.Inthefuture,humanbeingscanprotect

thetreeswell._____________,animalswillliveahappylifeintheforest.haschangedintoblowsawaydosomethingstopfromAsaresult1.Lily,wo

uldyoulike___________todrink?2.Cindyisverybusynow.Sheneeds_______tohelpher.3.Isthere_________wrongwithyourcomputer?4.Jimlo

okedforhispencil-box____________,buthedidn’tfindit.5.Istayedathomelastweek.Ididn’tgo__________.Usesomeone,s

omething,anything,somewhere,anywheretofillintheblanks.somethingsomeoneanythingsomewhereanywhereWelearn:1.Somewords:sand,although2.Somep

hrases:changeinto,humanbeing3.Somesentences:(1)Asaresult,alotofrichlandhaschangedintodesert.(2)Treescanstopthewindfromblowingtheeart

haway.Wecan:1.Usetheindefinitepronounandadverb.2.Talkaboutthesandstormanditsharm.Summary1.Read1a.2.Memorizetheusefulexpressionsandkeysente

nceswhichwelearntoday.3.FinishSectionAinyourworkbook.4.PreviewSectionB.Boysandgirls,let’sloveourearthandtraveltogether!Thankyou!