英语人教版八年级下册UNIT 6 SECTION B 2A- 3B .ppt

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1、SectionB23a-SelfcheckRevisionAsksomestudentstoreadthearticlein2b鲸的体型是世界上存在的动物中最大的，鲸是终生生活在水中的哺乳动物，对水的依赖程度很大，以致它们一旦离开了水便无法生活，鲸形状像鱼，鼻孔在头的上部，用肺呼吸。体长可达三十米，是现在世界上最大的动物。对于鲸鱼你知道多少？Checkthepreview鲸为适应水中生活，减少阻力，它们的后肢消失，前肢变成划水的浆板。身体成为流线型，酷似鱼。因而它们的潜水能力很强，小型齿鲸可潜至100-300米的水深处，停留4-5分钟，长须鲸可在水下300-50

2、0米处待上1小时，最大的齿鲸--抹香鲸能潜至千米以下，并在水中持续2小时之久。Readthefollowingwordsandphrasesaboutwhales.Puttheminthecorrectplaceinthechart.1.Humanscatchwhalesformeat,fatandoil2.Eatsmallfishandothersealife3.Jumphighoutofthewater4.Rulesonwhaleprotection5.Huge6.Waterpollution3aTask17.Liveinthesea8.Somekindsh

3、aveteeth9.Learnmoreaboutwhales10.Stopputtingrubbishintothesea11.Singsongs12.WhalepartssoldtomakethingslikescandlesandsoapWhatdotheylooklike？Wheredotheylive?Whatdotheyeat?Whatcantheydo?Whydosomeofthemhavetobeprotected?Howcanweprotectedthem?587231116124910Writeaparagraphaboutwhalesandw

4、hytheyneedtobeprotected.Usetheinformationin3a.Thenmakeaposter.3bTask2Whalesare…Theylivein…Theyeat…Theycan…Oneinterestingfactis…Anotherinterestingfactis…Somekindsofwhalesareindangerbecause…Weshouldprotectwhalesfrom…Ithinkpeopleshould/shouldn’t…Selfcheck1.Completethechart.AdjectivesCom

5、parativesSuperlativeshighdangerouslongpopularhigherhighestmoredangerousthemostdangerouslongerlongestmorepopularthemostpopularTask32.Matchverbsandobjects.Thenaddonemoreobjecttoeachlist.VerbsObjects1.reacha.mylife,mymoney,…2.achieveb.thetopofamountain,thelibrary,…3.riskc.mydream,succes

6、s,…myhealththeendsthefarmhouseTask43.Circlethecorrectwordand/orfillintheblankwiththecorrectformofthewordinbracketsforeachsentence.1.Anelephantweighs(few/many)timesmorethanadog.2.Anadultpandacaneat(much/alittle)morethanacat.3.Canadaisa(little/lot)less______________(crowded)thanChina.4

7、.Atigeris(much/alittle)_________(strong)thanaman.morecrowdedstrongerTask51.Thebiggest______intheworldistheSahara.2.Theriveristoo______toswimin.3.Chinaisoneof__________civilizations(文明)intheworld.4.The______ofthefastestanimalis120kilometersperhour.5.－What______doyouneedforyourcoat?－Iw

8、antalargeone