內(nèi)蒙古烏海市第二十二中學(xué)九年級(jí)英語(yǔ)上冊(cè) Unit 2 Topic 2 All these problems are very serious Section A課件 （新版）仁愛(ài)版.ppt

unit2savingtheearth topic2alltheseproblemsareveryserious sectiona pollution manytrees cutdown forestsgone washtheearthaway 沖走 changeintodesert 轉(zhuǎn)換成 變成 沙漠 e g alotofrichlandhaschangedintodesertbecausepeoplehavecutdowntoomanytrees sandstorms comeintobeing n 沙塵暴 theboyandgirlsaretalkingabout differenttypesofsandstormsthereasonsforsandstormssandstormsindifferentcities 1blistento1aandchoosethebestanswer focusonthemainideaoftheconversationwhenyoulistenforthefirsttime listenandanswerthequestions 1 what stheweatherliketoday it sbad thewindissostrong andthesandreallyhurtsface 2 whatcausesthesesandstorms peoplehavecutdowntoomanytrees asaresult alotofrichlandhaschangedintodesert 3 dowestillneedtodosomethingtoprotecttheenvironment yes wedo althoughwehavebuilt thegreengreatwall westillneedtodosomethingtoprotecttheenvironment conj 雖然 盡管 即使 n 沙 somebody someone something somewhereanybody anyone anything anywherenone nobody nothing nowhereeverybody everyone everything everywhere 一般情況下用于肯定句 一般情況下用于否定句和疑問(wèn)句 表否定含義 可用于各種句式 theindefinitepronounandadverb 1 ihave totellyou a importantsomethingb somethingimportant b 形容詞修飾不定代詞和不定副詞時(shí) 要放在不定代詞 不定副詞之后 doyouknow 2 everybody readyforthematch a isb are a 不定代詞作主語(yǔ)時(shí) 謂語(yǔ)動(dòng)詞要用單數(shù) 1alisten lookandsay 1cread1aandcompletetrees functions treescanstopthewindfromblowingtheearthaway alotofwatercanbesavedbyforests theycanalsostopthewaterfromwashingtheearthaway tree sfunctions k wind sand anythingm sandstormsj cutdown asaresult changeintom affectj stop from blow awayk canbesavedj wash awayk isharmfulto although dosomething actoutthedialoginpairs 2completethesentenceswiththecorrectformsofthegivenphrasesinthebox asaresult changeinto dosomething stop from blow away 1 peoplehavecutdownsuchalargenumberoftreesthattheland desert 2 therearefewertreesleft sothewindalways theearth 3 airpollutionhasbecomeaseriousproblem sowemust toreduceit 4 weshouldtryourbestto people cuttingdownthetrees 5 inthefuture humanbeingscanprotectthetreeswell animalswillliveahappylifeintheforest haschangedinto blows away dosomething stop from asaresult 3doyouknowhowsandstormscomeintobeing numberthepicturesandtalkaboutthesandstormingroups 4 1 5 3 6 2 washtheearthaway manytrees changeintodesert forestsgone sandstormscomeintobeing cutdowntrees 4a listentothepassageandcirclethephrasesyouhear becomeweakerdestroytheenvironmentdisappearrapidlyontheearthenoughbambootoeat 4b listenagainandfillintheblanks 1 nowsomekindsofanimalsarebecoming 2 someanimalsare dyingoutcompletely 3 inthepast pandaslivedaquietlifeandhad food 4 humanshave theimportanceofprotectinganimals 5 weshould toprotectthem doourbest indangerof plentyof cometounderstand fewerandfewer lily wouldyoulike todrink cindyisverybusynow sheneeds tohelpher isthere wrongwithyourcomputer jimlookedforhispencil box buthedidn tfindit istayedathomelastweek ididn tgo usesomeone something anything somewhere anywheretofillintheblanks something someone anything somewhere anywhere exercises welearn 1 somewords sand although2 somephrases changeinto humanbeing3 somesentences 1 asaresult alotofrichlandhaschangedintodesert 2 treescanstopthewindfromblowingtheearthaway wecan 1 usetheindefinitepronounandadverb 2 talkab