八年级英语上册Unit.ppt

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,八年级英语上册Unit-7,八年级英语上册Unit-7八年级英语上册Unit-7Language GoalTalk about geography and nature.,Language Goal,Talk about geography and nature.,Qomolangma,the Nile,the Caspian Sea,the Sahara,Do you know these interest places?,Qomolangma,Qomolangma,runs along the border between China and Nepal.It is covered with snow all the year round.Its 8844.43 high,the highest in the world.Its 26 kilometers long.,The Nile,is the longest river in the world.Its more than 6600 kilometers long.It runs through 9 countries,its one of the largest river flows through the international states in the world and runs into the Mediterranean Sea(,地中海,)in the end.,The Nile,The Caspian Sea,The Caspian Sea,is the biggest lake in the world.It lies in the border between Asia and Europe.,The Sahara,is the biggest desert in the world.It is located in the northern Africa,climate conditions are very bad,is one of the earths most not suitable for biological survival.,The Sahara,1a Match the facts you know.,Qomolangma,about 9,600,000 square kilometers in size,the Sahara,1,025 meters deep,the Caspian Sea,6,671 kilometers long,the Nile,8,844.43 meters high,Presentation,square,n,.,平方,meter,n,.,米,deep,adj,.,深的,desert,n,.,沙漠,population,n,.,人口,Asia,n,.,亚洲,tour,v.n,.,旅行,tourist,n,.,旅行者,wall,n,.,墙,amazing,adj,.,令人大为惊奇的,ancient,adj,.,古代的,wide,adj,.,宽的；宽阔和,1b,比较级与最高级,Qomolangma is _ than any other mountain in the world.,The Sahara is _ desert in the world.,The Caspian Sea is _ of all the salt lakes.,The Nile is _ river in the world.,higher,the biggest,the deepest,the longest,大多数形容词有三个级。,1.,原级,:,Structure:,as.as.,像,.,一样,e.g.Tim is,as,tall,as,Tom.,2.,比较级,(,用于两者之间的比较,):,Structure,：,形容词比较级,than.,e.g.This box is,bigger,than,that one.,形容词和副词的比较级和最高级,3.,最高级,(,用于三者或三者以上的比较,):,Structure:,the+,形容词的最高级,of/in.,e.g.Tom is,the heaviest in our class,.He is,the most popular in,our school,.,规则变化,1),一般情况下，,单音节或双音节的形容词,/,副词比较级,er,，,最高级,est,。如,:,clever clever,er,clever,est,few few,er,few,est,small small,er,small,est,等。,形容词、副词的比较级和最高级,规则变化和不规则变化,2),以,e,结尾的词,，,比较级,r,，,最高级,st,即可。如：,nice nice,r,nice,st,cute cute,r,cute,st,large large,r,large,st,3),以,辅音字母,y,结尾的,变,y,为,i,er,或,est,如,:easy eas,ier,eas,iest,happy happ,ier,happ,iest,再如：,early,busy,heavy,dirty,lazy,也如此。,4),重读闭音节，单辅音结尾的，,双写这个辅音字母,er,或,est,的词：,fat fat,ter,fat,test,thin thin,ner,thin,nest,hot hot,ter,hot,test,red red,der,red,dest,wet wet,ter,wet,test,big big,ger,big,gest,5),多音节和部分双音节的词,需要在形容词,原级前,more,构成,比较级,，,the most,构,成,最高级,。如：,beautiful,more,beautiful,the most,beautiful,又如,:,delicious,popular,important,interesting,expensive,creative,双音节,的词如,:careful,more,careful,the most,careful useful,more,useful,the most,useful,少数单音节词,也是这样，如：,pleased,more,pleased,the most,pleased,tired,more,tired,the,most,tired,b),不规则变化：,good,better,best,well,better,best,bad,worse,worst,many/much,more,most,三者或三者以上相比，表示最高程度时，用,“,the+,最高级”,的结构表示。这种句式一般常有表示比较范围的介词短语。例如：,Zhang Hua is,the tallest,of the three.,He works,(the)hardest,in his class.,最高级的用法,2.,最高级可被,序数词,以及,much,，,by far,，,nearly,，,almost,，,by no means,，,not quite,，,not really,，,nothing like,等词语所修饰。例如：,This hat is,by far,much,nearly,almost,not nearly,by no means,not quite,nothing like,the biggest.How much did,the second,most expensive hat coat?,3.,表示“最高程度”的形容词，如,excellent,，,extreme,，,perfect,等，没有最高级，也不能用比较级。,4.,形容词最高级修饰作表语或介词宾语的名词、代词时，被修饰的词往往省略。,e.g.He is,the tallest(boy),in his class.,5.,作状语的副词最高级前可以不加定冠词。,e.g.Of all the boys he came,(the)earliest,.,A:what is the longest river in the world?,B:The Nile.,Make conversations.,A:what is the highest mountain in the world?,B:Qomolangma.,Make conversations.,A:what is the biggest desert in the world?,B:The Sahara.,A:what is the deepest salt lake in the world?,B:The Caspian Sea.,谢谢大家！,结 语,