九年级英语上册Unit2SavingtheearthTopic2AlltheseproblemsareveryseriousSectionA课件仁爱版

Unit2SavingtheEarth Topic2Alltheseproblemsareveryserious SectionA pollution manytrees cutdown forestsgone washtheearthaway 冲走 changeintodesert 转换成 变成 沙漠 e g Alotofrichlandhaschangedintodesertbecausepeoplehavecutdowntoomanytrees sandstorms comeintobeing n 沙尘暴 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 虽然 尽管 即使 n 沙 somebody someone something somewhereanybody anyone anything anywherenone nobody nothing nowhereeverybody everyone everything 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 theindefinitepronounandadverb 1 Ihave totellyou A importantsomethingB somethingimportant B 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 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 Talkabo