仁爱八年级英语UNIT topic section D.ppt

UNIT4OurWorld,Topic1PlantsandanimalsareimportanttousSectionD,MianchiNo.4MiddleSchoolRenWanxia,panda,bluewhale,bear,Chinesetiger,wolf,Listentothetapeandanswerthequestions,1.Whatdopandasfeedon?2.Istheelephantthelargestanimalintheworld?3.Whatdohumansdotoputbluewhalesindanger?4.WhyareChinesetigersindanger?,Theyfeedonbamboo.,No,itisnt.,Humanskillbluewhalesandmaketheoceandirtier.,Becausesomepeoplekillthemfortheirfurandbones.,Payattentiontothenewwordsandthephrases,wildindangerwolffurbearbonebamboosouthwestlandinthesouthofChinakill,SouthwestChinabambooland,Readpart1againandretellthepassage,oceanseaanimalstheoceanwater,thesouthofChina.(华南）thesmallanimals.killfurandbones,Readthepassageagain,andfillintheblankswiththecorrectformsofthewordsfewlargelittlekillheavydangeroussmalloldfur,PandasliveintheforestsandmountainsofSouthwestchina.theyfeedonBamboo.butnowtheyhave_and_landtoliveon.Pandasarebecoming_and_innumber.Whatsthe_animalintheworld?Theelephant?No,itsthebluewhale.BlueWhalesliveintheocean.Theyarethelargestand_animalsintheworld.Buttheyfeedonthe_seaanimals.Nowtheyareindangerbecausesomehumans_whalesandmaketheoceanwaterdirtier.Chinesetigerliveinthesouthofchina.theyarethe_typeoftigerslivingintheworld.Theyfeedonsmallanimals.somepeoplekillthemfortheir_andbones.Theyarein_.,less,less,fewer,heaviest,largest,smallest,fewer,kill,oldest,fur,danger,Sumuptheusageofcomparativeandsuperlativedegreesofadjectives.,形容词，有三级。原级、比较、最高级比较级上加er，最高级上加est。若它发的音节多，more和most记心上。两者之间比较级。比较连词要用than三者以上最高级，后加of/in短语,请写出下列形容词的比较级和最高级,clean_quiet_fresh_dirty_noisy_green_tall_busy_wide_,cleaner,cleanest,quieter,quietest,fresher,freshest,dirtier,dirtiest,noisier,noisiest,greener,tallest,busier,busiest,widest,wider,taller,greenest,Workingroup:Discussthedifferencesbetweenthecityandthecountryside.Usethecomparativedegreesofadjectives.Thefollowingpicturesandthewordsmayhelpyou.,city,countryside,cleanerquieterfresherdirtiernoisiergreenertallerbusierwider,Exercise2.Writedownapassageaccordingtothewordsandthepicturesonyourexercisebook.,比较级的特殊句型,比较级应注意的问题,比较级最高级和的基本句型,用法口诀,形容词的比较级和最高级,比较级和最高级的构成,形容词比较级与最高级的构成：1.)单音节形容词的比较级和最高级形式是在词尾加-er和-est构成2)以-e结尾的单音节形容词的比较级和最高级是在词尾加-r和-st构成以3）-y结尾,但-y前是辅音字母的形容词的比较级和最高级是把-y去掉,加上-ier和-est4）以一个辅音字母结尾其前面的元音字母发短元音的形容词的比较级和最高级是双写该辅音字母然后再加-er和-est.5多音节形容词的比较级在其前加more和most构成.,比较级和最高级的构成,由“形容词比较级+than”构成。Heistallerthanabouthisbrother,比较级最高级和的基本句型,1）为了避免重复,those代替复数名词,that代替单数或不可数名词。TheplantsincountrysidearegreenerthanthoseincityTheweatherinBeijingiscolderthanthatinHainan2)当比较对象属于同一范围时，需使用other来排除自身，否则会造成与自身相比较的矛盾。ShanghaiislargerthananyothercityinChina.,比较级应注意的问题,比较级and+比较级”或“moreandmore/lessandless+原级”结构表示“越来越”的意思。,比较级的特殊句型,比较级和,