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Unit2SavingtheEarthTopic2Alltheseproblemsareveryserious.SectionApollutionTeachingaims•Knowledgeaims:•1.Somewords:sand,

desert•2.Somephrases:changeinto,comeintobeing,cutdown3.Somesentences:(1)Asaresult,alotofrichlandhaschang

edintodesert.(2)Treescanstopthewaterfromwashingtheearthaway.Skillaims:•1.Usetheindefinitepronounandadverb.•2.Talkaboutthesandstormanditsharm.manytree

scutdown砍到forestsgonewashtheearthaway冲走changeintodesert转换成，变成沙漠e.g.Alotofrichlandhaschangedintodesertbecausepe

oplehavecutdowntoomanytrees.sandstormscomeintobeing形成n.沙尘暴3Doyouknowhowsandstormscomeintobeing?Numberthepicturesandtalkabou

tthesandstormingroups.()()()()()()415362washtheearthawaymanytreeschangeintodesertforestsgonesandstormscomeintobei

ngcutdowntreesTheboyandgirlsaretalkingabout—————.A.differenttypesofsandstormsB.thereasonsforsandstormsC.sandstormsindifferentcities1bListento1aan

dchoosethebestanswer.Focusonthemainideaoftheconversationwhenyoulistenforthefirsttime.√Listenandanswerthequestions1.Wh

at’stheweatherliketoday?It’sbad.Thewindissostrong.Andthesandreallyhurtsface.2.Whatcausesthesesandstorms?Peoplehav

ecutdowntoomanytrees.Asaresult,alotofrichlandhaschangedintodesert.3.Dowestillneedtodosomethingtoprotecttheenvironment?Yes,wedo.A

lthoughwehavebuilt“TheGreenGreatWall”,westillneedtodosomethingtoprotecttheenvironment.conj.虽然，尽管，即使n.沙1cRead1aandcompletetrees’functions.A.Tre

escanstopthewindfromblowingtheearthaway.B.Alotofwatercanbesavedbyforests.C.Theycanalsostopthewaterfr

omwashingtheearthaway.Tree’sfunctionsK:wind;sand;anythingM:sandstormsJ:cutdown;asaresult;changeintoM:affectJ:stop…from…;blow…awayK:ca

nbesavedJ:wash…awayK:isharmfulto;although;dosomethingActoutthedialoginpairs1.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___readyforthematch.A.isB.areA不定代词作主语时，谓语动词要用单数。somebody,someone,something,somewhereanybody,anyone,a

nything,anywherenone,nobody,nothing,nowhereeverybody,everyone,everything,everywhere一般情况下用于肯定句和委婉语气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theindefinite

pronounandadverb1.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.Ev

erybody___readyforthematch.A.isB.areA不定代词作主语时，谓语动词要用单数。4A.Listentothepassageandcirclethephrasesyouhear.•beco

meweaker•destroytheenvironment•disappearrapidly•ontheearth•enoughbambootoeat4B.Listenagainandfillintheblanks.1.Nowsomekindsofanimalsar

ebecoming___________________.2.Someanimalsare_______________dyingoutcompletely.3.Inthepast,pandaslivedaquietlifeandhad

______________food.4.Humanshave____________________theimportanceofprotectinganimals.5.Weshould________________toprotectthem.doourbestindangerofplen

tyofcometounderstandfewerandfewer1.Lily,wouldyoulike___________todrink?2.Cindyisverybusynow.Sheneeds_____

__tohelpher.3.Isthere_________wrongwithyourcomputer?4.Jimlookedforhispencil-box____________,buthedidn’t

findit.5.Istayedathomelastweek.Ididn’tgo__________.Usesomeone,something,anything,somewhere,anywheretofill

intheblanks.somethingsomeoneanythingeverywhereanywhereWelearn:1.Howdosandstormscomeintobeing?2.Thetrees”functionsWecan:Usetheindefini

tepronounandadverb..Summary•Memorizetheusefulexpressionsandkeysentenceswhichwelearntoday.•FinishSectionAinyo

urworkbook.•PreviewSectionB.Thankyou!