Unit 13 We're trying to save the earth! Section A 课件

SectionA Unit13We retryingtosavetheearth Severalkindsofpollution Airpollution Waterpollution Soilpollution Whatcanwedetoprotectourearth panda dolphin tiger elephant lion giraffe koala turtle penguin snake monkey sheep chimpanzee kangaroo Polarbear camel zebra 形容词知多少 scarybig friendlystrong cutesmallinteresting cleversmart shy ugly fun beautifultall lazylovely enormousgray noisy playful aggressive spottedfast furrygentle 巨大的 庞大的 灰色的 吵闹的 顽皮的 挑衅的 有斑点的 快的 毛皮的 温柔的 strong 强壮的 PairworkA What syourfavoriteanimals B Africanelephants kangaroos A Whatdoyouthinkofthem B Theyareenormous playful Groupwork A IamlikethisanimalbecauseIamstrongandintelligent IlikewaterandIliketoeatvegetables B You relikeanelephant A No C You relikeamanatee A Yes 让我们合作互助 GrammarFocus We retryingtosavethemanages PresentProgressive 现在进行时 结构 am is are v ing Forexample Heisreadingastorybook GrammarFocus Manateeseatabout100poundsoffoodaday PresentSimple 一般现在时 动词的形式 doordoes Forexample Igotoschoolbybike Shedoesherhomeworkeveryday GrammarFocus Thereusedtobealotofmanatees Pastwithusedto结构 usedto infinitive 动词原形 Forexample IusedtogoswimmingwhenIwasachild GrammarFocus In1972 itwasdiscoveredthattheywereendangered Passivevoice 被动语态 结构 be 过去分词 Forexample Ourclassroomiscleanedeveryday GrammarFocus Someoftheswampshavebecomepolluted PresentPerfect 现在完成时 结构 have has 过去分词 Forexample Ihavealreadyfinishedmyhomework 用所给单词的适当形式 Theanimals keep intinycagesandcanhardlymoveatall He visit manycountriesandlearnedseveralforeignlanguagessince2000 Someoftheswapshavebeen pollute Pleasebequiet Thebaby sleep atthemoment Whois strong inourclass arekept havevisited polluted issleeping thestrongest Istopped use papernapkinslastyear He use tobe call LittleTiger Youarelikeakangaroobecauseyouare play Whilewe talk yesterdayafternoon thebellrang