八年级英语UNI toic section Dppt课件.ppt

UNIT4OurWorld Topic1PlantsandanimalsareimportanttousSectionD MianchiNo 4MiddleSchoolRenWanxia 1 panda bluewhale bear Chinesetiger wolf 2 Listentothetapeandanswerthequestions 1 Whatdopandasfeedon 2 Istheelephantthelargestanimalintheworld 3 Whatdohumansdotoputbluewhalesindanger 4 WhyareChinesetigersindanger Theyfeedonbamboo No itisn t Humanskillbluewhalesandmaketheoceandirtier Becausesomepeoplekillthemfortheirfurandbones 3 4 Payattentiontothenewwordsandthephrases wildindangerwolffurbearbonebamboosouthwestlandinthesouthofChinakill 5 SouthwestChinabambooland Readpart1againandretellthepassage 6 oceanseaanimalstheoceanwater 7 thesouthofChina 华南 thesmallanimals killfurandbones 8 Readthepassageagain andfillintheblankswiththecorrectformsofthewordsfewlargelittlekillheavydangeroussmalloldfur PandasliveintheforestsandmountainsofSouthwestchina theyfeedonBamboo butnowtheyhave and landtoliveon Pandasarebecoming and innumber What sthe animalintheworld Theelephant No it sthebluewhale 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 9 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 10 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 11 Workingroup Discussthedifferencesbetweenthecityandthecountryside Usethecomparativedegreesofadjectives Thefollowingpicturesandthewordsmayhelpyou 12 city countryside cleanerquieterfresherdirtiernoisiergreenertallerbusierwider 13 Exercise2 Writedownapassageaccordingtothewordsandthepicturesonyourexercisebook 14 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 15 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 16 由 形容词比较级 than 构成 Heistallerthanabouthisbrother 比较级最高级和的基本句型 17 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 18 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