1、單元2 saving the earth、topic2alltheseproblemsareveryserious .Section A、重慶西勝中學(xué)李坤蘭、pollution、many trees、cut down wash the earth away，富轉(zhuǎn)換，轉(zhuǎn)換，沙漠，轉(zhuǎn)換， e.g.alotofrichlandhaschangedintodesert sandstorms、come into being、n .沙塵暴、theboyandgirlsaretalkingabout.differenttypesofsandstorms 1 blis tento1andchoosethebe

2、stanswer .focusonthemainideaoftheconversationwhenyoulistenforthefirsttime .監(jiān)聽器智能運(yùn)輸系統(tǒng)板peoplehavecutdowntoomanytrees.asaresult，alotofrichlandhaschangedintodesert.3.dowestillneedtodosomethingtoprotert是， wedo.althoughwehavebuilt“熱誠保護(hù)”、westillneedtodosomethingtoprotecttheenvironment .conj someone、somethi

3、ng、somewhe anywhere none，nobody，nothing， nowhere everybody一般用于肯定句，一般用于否定句和疑問句，表否定意義是用于各種語法的the indefinite pronoun and adverb，1.ihave_totellyou.a . 2.everybody _ _ _ readyforthematch.a.isb.are，a，將不定代詞作為主語時，謂語動詞必須是單數(shù)。、1a Listen、look and say .1 cread1andcompletetreesfunctions .treescanstopthewindfrombl

4、owingtheearthaway.alotofwatercanbesavedbyf anything m : sandstormsj : cut下載。 as a結(jié)果； 從：影響：停止。 blowawayk 3360 canbesavedj 3360 wash away k : isharmfulto although； do something、Act out the dialog in pairs、2 completethesentenceswithecorrectformsofthegivenphrasesinthebox .as a result do something 布魯瓦航空，

5、 1.peoplehavecutdownsuchalargenumberoftreesthattheland _ _ _ _ _ _ _ _ sothewindalways _ _ _ _ _ earth _ _ _ _ _ _ _3. airpollutionhasbecome 指的是sp sowemust _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _。 humanbeingscanprotectthetreeswell._ _ _ _ _ _ _ _ _ _ _ _ _

6、 _ animalswilliveahappylifeintheforres from，As a result，3 doyouknowhowsandstormscomeint numberthepicturesandtalkaboutthesandstormingroups .()、()、()、()、4、1、5。 forests gone、sandstorms come into being、cut down trees、4 a.listentothepassageandcirclethephrasesyouhear . becomeweakerdestroytheenvironmentdis

7、appearrapidlyontheearthenoughbambootoeat， 4 b.listenagainandfillintheblaate1. nowsomekindsofanimalsarebecoming _ _ . 最佳，最佳，最佳，最佳，最佳，最佳，最佳。 fest cindyisverybusynow.she needs _ _ _ _ tohelpher.is there _ _ _ _ _ _ _ _ wrong web jimlookedforhispencil-box _ _ _ _ _ _ _ _ buthedidntfindit.ISS anything，somewhere，anywhere to fill in the blanks .something，someone，anything，somewhere，anywhere， anywhere although2. some phrases :變更into、human being3. some sentences : (1) asaresult、alotofrichlandhaschangedintodeseses treescanstopthewindfromblowingtheearthaway.we can :1.usetheindefinitepronounandadver