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Unit2SavingtheEarthTopic2Alltheseproblemsareveryserious.SectionApollutionTeachingaims•Knowledgeaims:•1.So

mewords:sand,desert•2.Somephrases:changeinto,comeintobeing,cutdown3.Somesentences:(1)Asaresult,alotofrichlandhaschangedint

odesert.(2)Treescanstopthewaterfromwashingtheearthaway.Skillaims:•1.Usetheindefinitepronounandadverb.•2.Talkaboutthesandstormanditsharm.manytrees

cutdown砍到forestsgonewashtheearthaway冲走changeintodesert转换成，变成沙漠e.g.Alotofrichlandhaschangedintodesertbecausepeoplehavecutd

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

tthesandstormingroups.()()()()()()415362washtheearthawaymanytreeschangeintodesertforestsgonesandstormscom

eintobeingcutdowntreesTheboyandgirlsaretalkingabout—————.A.differenttypesofsandstormsB.thereasonsforsandstormsC.sand

stormsindifferentcities1bListento1aandchoosethebestanswer.Focusonthemainideaoftheconversationwhenyoulistenfo

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

ce.2.Whatcausesthesesandstorms?Peoplehavecutdowntoomanytrees.Asaresult,alotofrichlandhaschangedintodes

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

westillneedtodosomethingtoprotecttheenvironment.conj.虽然，尽管，即使n.沙1cRead1aandcompletetrees’functions.A.Treescanstopthewindfrombl

owingtheearthaway.B.Alotofwatercanbesavedbyforests.C.Theycanalsostopthewaterfromwashingtheearthaway.Tree’sfunctionsK:wind;sand;anythingM

:sandstormsJ:cutdown;asaresult;changeintoM:affectJ:stop…from…;blow…awayK:canbesavedJ:wash…awayK:isharmfulto;although;dosomethingActoutthedialog

inpairs1.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.are

A不定代词作主语时，谓语动词要用单数。somebody,someone,something,somewhereanybody,anyone,anything,anywherenone,nobody,nothing,nowhereeverybody,everyone,every

thing,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theindefinitepronounandadverb1.Ihave____totellyou.A.importantsomethingB.s

omethingimportantB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。4A.Listentothepassageandcirclethephrasesyouhear.•becomeweaker•destroytheenvironment•disappearrapidly•ontheearth•enou

ghbambootoeat4B.Listenagainandfillintheblanks.1.Nowsomekindsofanimalsarebecoming___________________.2.Someanimalsare________

_______dyingoutcompletely.3.Inthepast,pandaslivedaquietlifeandhad______________food.4.Humanshave____________________th

eimportanceofprotectinganimals.5.Weshould________________toprotectthem.doourbestindangerofplentyofcometounderstandfewerandfewer1.Lily,wouldyou

like___________todrink?2.Cindyisverybusynow.Sheneeds_______tohelpher.3.Isthere_________wrongwithyourcomputer?4.Jim

lookedforhispencil-box____________,buthedidn’tfindit.5.Istayedathomelastweek.Ididn’tgo__________.Usesomeone,something,anything,somewhere

,anywheretofillintheblanks.somethingsomeoneanythingeverywhereanywhereWelearn:1.Howdosandstormscomeintobeing?2.Thetrees”functi

onsWecan:Usetheindefinitepronounandadverb..Summary•Memorizetheusefulexpressionsandkeysentenceswhichwelearntoday.•FinishSectionAinyou

rworkbook.•PreviewSectionB.Thankyou!