人教版八年級(jí)英語下冊 （What's the highest mountain in the world）SectionB 教學(xué)課件(第3課時(shí))

SectionB第3課時(shí)Unit7

What'sthehighestmountainintheworld?

GuessTheyarehugeanimals.Theyliveinthesea.Theycansingsongs.Theycanjumphighoutofwater.Theyareverycleverandalsoveryfriendly.Whatarethey?Canyouguesswhattheanimalis?

鯨的體型是世界上存在的動(dòng)物中最大的，鯨是終生生活在水中的哺乳動(dòng)物，對(duì)水的依賴程度很大，以致它們一旦離開了水便無法生活，鯨形狀像魚，鼻孔在頭的上部，用肺呼吸。體長可達(dá)三十米，是現(xiàn)在世界上最大的動(dòng)物。Doyouknow?

鯨為適應(yīng)水中生活，減少阻力，它們的后肢消失，前肢變成劃水的漿板。身體成為流線型，酷似魚。因而它們的潛水能力很強(qiáng)，小型齒鯨可潛至100-300米的水深處，停留4-5分鐘，長須鯨可在水下300-500米處待上1小時(shí)，最大的齒鯨--抹香鯨能潛至千米以下，并在水中持續(xù)2小時(shí)之久。3aReadthefollowingwordsandphrasesaboutwhales.Puttheminthecorrectplaceinthechart.123456789101112Whatdotheylooklike？Wheredotheylive?Whatdotheyeat?Whatcantheydo?Whydosomeofthemhavetobeprotected?Howcanweprotectedthem?5872311161249103bWriteaparagraphaboutwhalesandwhytheyneedtobeprotected.Usetheinformationin3a.Thenmakeaposter.Whalesare…Theylivein…Theyeat…Theycan…Oneinterestingfactis…Anotherinterestingfactis…Somekindsofwhalesareindangerbecause…Weshouldprotectwhalesfrom…Ithinkpeopleshould/shouldn’t…

Whalesarehugeanimals.Theyliveintheseaandeatsmallfishandothersealife.Oneinterestingfactiswhalescanjumphighoutofwater.Somekindsofwhalesareindangerbecausehumanscatchthemformeat,fat,andoil,andusewhalepartstomakecandlesandsoaps.Whalesarealsoindangerfromwaterpollution.Weshouldprotectwhalesbymakingrulesonwhaleprotectionandbynotputtingrubbishintothesea.Ithinkpeopleshouldlearnmoreaboutwhales.英語中，awake常用于be,stay,keep,lie之后，作表語；但也可與shake等動(dòng)詞搭配，表示“某人搖醒他人”等。1.At9:00a.m.,theyfindthatmostofthebabiesarealreadyawakeandhungry.Youwouldhaveto

shakeherawake.你得把她給搖醒。Keypoints另外，awake不與very搭配使用，表示“完全醒來；十分清醒”用fullyawake，wideawake。Hewas

wideawake

bythetimewereachedmyflat.等我們到達(dá)我的住所時(shí)，他已經(jīng)完全清醒過來了。注意：awake不用于名詞之前，因此用作定語時(shí)要后置。1)

10kilosofbamboo意為“10公斤竹子”，該結(jié)構(gòu)是不可數(shù)名詞量的表達(dá)法，其結(jié)構(gòu)為“數(shù)詞+單位名詞+of+名詞”。單位名詞可以是單數(shù)，也可以是復(fù)數(shù)。2)spend…(in)doingsth.意為“花費(fèi)……做某事”。They

spenttwoyears

(in)building

thisbridge.造這座橋花了他們兩年時(shí)間。2.Adultpandasspendmorethan12hoursadayeatingabout10kilosofbamboo.SelfCheck1.Completethechart.AdjectivesComparativesSuperlativeshighdangerouslongpopularhigherhighestmoredangerousmostdangerouslongerlongestmorepopularmostpopular2.Matchverbsandobjects.Thenaddonemoreobjecttoeachlist.VerbsObjects1.reacha.mylife,mymoney,…2.achieveb.thetopofamountain,thelibrary,…3.riskc.mydream,success,…a.mylife,mymoney,

myfamilyb.thetopofamountain,thelibrary,

thetheaterc.mydream,success,

goodresults3.Circlethecorrectwordand/orfillintheblankwiththecorrectformofthewordinbracketsforeachsentence.1.Anelephantweighs(few/many)timesmorethanadog.2.Anadultpandacaneat(much/alittle)morethanacat.3.Canadaisa(little/lot)less__________(crowded)thanChina.4.Atigeris(mu