【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.sandstorms

comeintobeingn.沙尘暴Theboyandgirlsaretalkingabout—————.A.differenttypesofsandstormsB.thereasonsforsandstormsC.

sandstormsindifferentcities1bListento1aandchoosethebestanswer.Focusonthemainideaoftheconversationwhenyoulistenforth

efirsttime.√Readandanswerthequestions1.What’stheweatherliketoday?It’sbad.Thewindissostrong.Andthesandreallyhurtsface.2.

Whatcausesthesesandstorms?Peoplehavecutdowntoomanytrees.Asaresult,alotofrichlandhaschangedintodesert.3.Dowestill

needtodosomethingtoprotecttheenvironment?Yes,wedo.Althoughwehavebuilt“TheGreenGreatWall”,westillneedtodosomething

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

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

mebody,someone,something,somewhereanybody,anyone,anything,anywherenone,nobody,nothing,nowhereeverybody,everyone,everyt

hing,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.i

mportantsomethingB.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。1

cRead1aandcompletetrees’functions.A.Treescanstopthewindfromblowingtheearthaway.B.Alotofwatercanbesavedbyforests.C.Theycanalsostopthewaterfromw

ashingtheearthaway.Tree’sfunctions3Doyouknowhowsandstormscomeintobeing?Numberthepicturesandtalkaboutthesandstormingroups.()()()()()()415362washt

heearthawaymanytreeschangeintodesertforestsgonesandstormscomeintobeingcutdowntreesK:wind;sand;anythingM:sandstormsJ:cutdown;asares

ult;changeintoM:affectJ:stop…from…;blow…awayK:canbesavedJ:wash…awayK:isharmfulto;although;dosomethingActoutthedialoginpairs2Com

pletethesentenceswiththecorrectformsofthegivenphrasesinthebox.asaresult,changeinto,dosomething,stop…from,blow…away1.Peoplehavecutdownsuchalar

genumberoftreesthattheland_____________________desert.2.Therearefewertreesleft,sothewindalways_______theearth________.3.Airpollutio

nhasbecomeaseriousproblem,sowemust______________toreduceit.4.weshouldtryourbestto_________people________cuttingdownthetrees.5.Int

hefuture,humanbeingscanprotectthetreeswell._____________,animalswillliveahappylifeintheforest.haschangedintoblowsawaydos

omethingstopfromAsaresult1.Lily,wouldyoulike___________todrink?2.Cindyisverybusynow.Sheneeds_______tohelpher.3.Isthere_________wrongwithyourcom

puter?4.Jimlookedforhispencil-box____________,buthedidn’tfindit.5.Istayedathomelastweek.Ididn’tgo__________.Usesomeone,something,anything,so

mewhere,anywheretofillintheblanks.somethingsomeoneanythingsomewhereanywhereWelearn:1.Somewords:sand,

although2.Somephrases:changeinto,humanbeing3.Somesentences:(1)Asaresult,alotofrichlandhaschangedintodese

rt.(2)Treescanstopthewindfromblowingtheearthaway.Wecan:1.Usetheindefinitepronounandadverb.2.Talkaboutthesandstormanditsharm.Summary1.Read1

a.2.Memorizetheusefulexpressionsandkeysentenceswhichwelearntoday.3.FinishSectionAinyourworkbook.4.Preview

SectionB.Boysandgirls,let’sloveourearthandtraveltogether!Thankyou!