Unit15We’retryingtosavethemanatees!一.[重点词组](KeyPhrases)1.belike2.trytodo3.usedto4.besuitablefor5.besurprisedtodo6.carefor7.takecareof8.disagreewith9.rideincars10.inone’ssparetime11.raisemoney二.[交际用语]1.We’retryingtosavethemanatees.2.Manateeseatabout100poundsoffoodaday.3.Thereusedtobealotofmanatees.4.In1972,itwasdiscoveredthattheywereendangered.5.Someoftheswampshavebecomepolluted.6.Zoosareterribleplacesforanimalstolive.7.I’mwritingtosaythat…三.[重点难点释义](LanguagePoints)1.IamlikethisanimalbecauseIamstrongandintelligent.Belike=looklike=besimilarto像，看起来像。如：Heislikehisfather。他像他的父亲。=Helookslikehisfather.=Heissimilartohisfather.这里的like作介词，意思为“像”，like还可做动词用，表示“喜欢”，like（doing）sth.喜欢做某事。如：Helikeshisfatherverymuch.他很喜欢他的父亲。Marylikesplayingvolleyball.玛丽喜欢打排球。2.Howbigaremanatees?海牛有多大？Howbig...询问体重。以how组合的疑问词组有很多，如：howold（询问年龄），howoften（询问频率），howlong（询问动作持续的长短），howmuch（询问质量或者价钱），howfar（询问距离）howmany（询问数量），howsoon（询问过多久）英语中表示长度、高度、宽度、深度和重量的表达法有：eg.Thebridgeisnearly2000meterslong.这座桥长将近2000米。eg.Thiselephantis1000poundsheavy./Thiselephantweighs1000pounds.这头象重1000吨。3….theyweighabout1,000pounds,……他们大约重1000磅。Weigh称……重量，测……重量。如：Heweighedthestoneinhishand.他用手掂了掂这块石头的重量。Thepieceofmeatweighsfourpounds.这块肉重四磅。Weight还可用做名词，重量。如：Whatisyourweight？你的体重是多少？4.We’retryingtosavethemanatees.我们正在竭尽全力拯救海牛.Trytodo=tryone’sbesttodo努力去做某事。如：Everystudentshouldtrytostudyhardinordertostudyinauniversity.为了进入大学学习，每个学生都应该努力学习。5.I’mwritingtosaythatIamagainstbuildinganewzooinourtown.Against介词,反对,违反,与……相反(=opposite)如:Aremostpeopleagainsttheproposal?大多数人反对这项提议吗?Against介词还有触,碰,倚,靠的意思.如:Putthepianothere,withitsback,againstthewall.把钢琴放在那里,背靠着墙.Beagainstdoingsth.反对做某事,反义词组是befordoingsth,赞成某事.如:Allthepeoplearoundtheworldareagainstcloninghumanbeings.全世界的人民反对克隆人类.Allofusareforpeaceandagainstwar.我们都赞成和平,反对战争.6.I’vevisitedalotofzoosinmylife,andIhaveneverseenoneIlikedoronethatwassuitableforanimalstolivein.(1)besuitableforsbtodosth.表示“适合某人做某事”,这里suitable是suit的形容词形式