甘肃省兰州三十一中九年级英语上册 unit 15《We are trying to save the manatess》 Section A课件 人教新目标版.ppt

新目标九年级 wearetryingtosavethemanatees unit15 sectiona studygoals 1 toreviewstructureslearned 2 tolistenandtalkaboutanimals warmingup animalsareman sfriends 1a herearesomewordsthatdescribeanimals writethesewordsintheboxesbelow thenwriteotherwordsyouknow gentlefurryenormousplayfulnoisyshyaggressivegrayfastspotted what sthis andhowtodescribeit aggressive funny polarbear africanelephants enormous gray what rethey andhowtodescribethem chimpanzees noisy clever what rethey andhowtodescribethem kangaroos playful what rethey andhowtodescribethem manatees gentle shy what rethey andhowtodescribethem cheetahs spotted fast what rethey andhowtodescribethem 1b listenandcirclethewordsinactivity1athatvictorandginnyusetodescribetheanimals gentlefurryenormousplayfulnoisyshyaggressivegrayfastspotted sectiona1b boy hey ginny what sthatbig furryanimalinthepond girl it sapolarbear victor they rekindofaggressive boy arethey looksliketheyreallylovewater girl uh huh boy andwhatdoyoucallthosebig graythingsinthewater girl they recalledmanatees boy what girl manatees they reverygentleandveryshy boy oh andhowabouttheyellowandblackspottedanimalsinthatcage girl they recheetahs thecheetahisthefastestanimalonearth iamlikethisanimalbecauseiamstrongandintelligent ilikewater andiliketoeatvegetables canyouguess amanatee 1c groupwork 1 endangered2 mangroveswamps3 habitat4 aquaticfeed listenandmatchthewordwithdefinitions 2a theplacewheresomethinglives b therearen tverymanyofthem c underwaterplantsandvegetation d aplacewheretreesgrowinwater listenagain completethechart 2 500intheu s waterundertreesinmangroveswamps swampspolluted notenoughfood large tenfeetlong weighs1 000pounds 2b sectiona2a2b boy canyoutellusaboutthemanatees please man sure we retryingtosavethem boy why aretheyendangered man yes thereusedtobealotofmanatees butnowtherearen tverymanyofthem boy doyouknowhowmanythereare man atthispoint thereareonlyabout2 500intheu s in1972 itwasdiscoveredthattheywereendangered sincethen thegovernmenthaspassedlawstoprotectthem boy wheredotheylive man theirfavoritehabitatisthewaterunderthetreesinmangroveswamps boy andwhyaretheyendangered man someoftheswampshavebecomepolluted also theresometimesisn tenoughfoodforallofthem asyoucansee they relarge theaveragemanateeisabouttenfeetlongandweighsabout1 000pounds theyneedabout100poundsofaquaticfeedaday boy aquaticfeed man oh that sunderwaterplantsandvegetation that swhattheyeat howbigaremanatees they reabout10feetlongandtheyweightabout1 000pounds 2c pairwork grammarfocus we retryingtosavethemanatees manateeseatabout100poundsoffoodaday thereusedtobealotofmanatees in1972 itwasdiscoveredthattheywereendangered someoftheswampshavebecomepolluted presentprogressive presentsimple usedto infinitive passivevoice presentperfect 英语的语态是通过动词形式的变化表现出来的 英语中有两种语态 主动语态和被动语态 主动语态表示主语是动作的执行者 manypeoplespeakenglish 谓语 speak的动作是由主语manypeople来执行的 被动语态表示主语是动作的承受者 即行为动作的对象 englishisspokenbymanypeople 主语 english是动词speak的承受者 被动语态的构成 被动语态由 助动词be 及物动词的过去分词 构成 人称 数和时态的变化是通过be的变化表现出来的 现以teach为例说明被动语态在各种时态中的构成 一般现在时 am is are taught一般过去时 was were taught一般将来时 will shallbe taught现在进行时 am is arebeing taught过去进行时 have hasbeen taught现在完成时 have hasbeen taught口诀是 被动语态be字变 过去分词跟后面 被动语态的用法 1 不知道或没有必要说明动作的执行者是谁 somenewcomputerswerestolenlastnight 一些新电脑在昨晚被盗了 不知道电脑是谁偷的 thisbookwaspublishedin1981 这本书出版于1981年 2 强调动作的承受者 而不强调动作的执行者 thewindowwasbrokenbymike 窗户是迈克打破的 口诀 谁做的动作不知道 说出谁做的没有必要 动作承受者需强调 被动语态运用到 suitableadj 合适的 适宜的tinyadj 极小的 微小的cagen 笼子 囚笼disgustedadj 厌恶的 憎恶的educatev 教育 培养carefor关怀 照顾urgev 强烈要求 竭力主张 newwords 1 zoosareterribleplacesforanimalstolive 2 theanimalsarekeptintinycagesandcanhardlymoveatall 3 andtheyareonlygivenfoodonceaday thereasonswhythewriterisagainstthezoos 3a reading 1 thezoosarelikelivingtextbooksforyoungpeople 2 thezoosprovidehomesformanyendangeredanimals 3 thezooshelptoeducatethepublicaboutcaringforthem thereasonswhythewritersupportsthezoos 3b reading doyouagreewith disgusted or animalfriend writealettertotheeditorandgiveyouropinion homework deareditor afterreadingthetwoletters irealizethatimustsaysomethingaboutanimalsandzoos idon tagreewithdisgusted infact manyanimalsonlyeatonceadayoronceeveryfewdays sofeedingthemjustonceadayisnotaproblematall ithinkzoosareveryimportanttoanimals theycanstopmanyendangeredanimalsfrombeingkilledorhunted theycanprovidemanwithplacesforresearchwork