八下unit7sectionA1ac.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,*,Welcome to our class!,Who,is tall,er,Pan Changjiang,or,Liu Xiang?,Liu Xiang.,Review,Which box,is big,ger,t,he red box,or,t,he green box,?,The red box.,This apple is,the,big,gest,of all,.,Which apple is the big,gest?,形容词和副词的比较等级,大多数形容词和副词有三个等级,:,a.,原级，,即原形。如,big(,大）。,b.,比较级，,表示“较,”,或“更,一些”。,如,:bigger,（更大）,c.,最高级，,表示“最,”,。如,:biggest,（最大）,1.,规则变化,形容词和副词的比较级和最高级的构成,(1),一般在词尾加,-er,或,-est highhigher-highest,(2),以字母,e,结尾的词，在词尾加,r,或,-st latelater-latest,(3),重读闭音节词词尾只有一个辅音字母时，先双写该辅音字母，再加,er,或,-est bigbigger-biggest,4),以“辅音字母,+y”,结尾的双音节词，先把“,y”,改为“,i”,，再加,er,或,-est happyhappier-happiest,(5),多音节词和部分双音节词，在词前加,more,或,most popular-more popularmost popular,2.,不规则变化,原级,比较级,最高级,good/well,better,best,bad/badly,worse,worst,many/much,more,most,little,less,least,far,farther,farthest,further,furthest,比较级的用法,表示两者（人或事物）的比较,用,“比较级,+than”,。,Liu Xiang is taller than Pan Changjiang.,Beijing is bigger than Hainan.,最高级的用法,表示三者或三者以上,(,人或事物,),的比较。最高级前面一般加定冠词,the,后面可带短语,in/of,来说明比较的范围。,如,:,Tony is the tallest in our class.,This ruler is the longest of all.,Unit 7,Whats the highest mountain in the world?,Section A,1a1c,目标：谈论地理知识以及世界各地的自然风光,重点：能够理解并灵活运用形容词和副词的比较级和最高级,难点：能够用最高级谈论“世界之最”,南岳衡山,海拔,1300.2,米,东岳泰山,英文名：,Mount Tai,海拔,1532.7,米,Lead-in,北岳恒山,西岳华山,海拔,2154.9,米，居五岳之首。,海拔,2016.1,米,中岳嵩山,海拔,1491.7,米,泰山,1532.7,米 衡山,1300.2,米,华山,2154.9,米,恒山,2016.1,米 嵩山,1491.7,米,What is the highest mountain of the five mountains?,Whats the highest mountain in China?,Emei Mountain,Presentation,square,skwe(r),n,.,平方,meter,mi:t(r),n,.,米,deep,di:p,adj,.,深的,desert,dezt,n,.,沙漠,Qomolangma,Do you know its name?,珠穆朗玛峰简称珠峰，位于中国和尼泊尔交界的喜马拉雅山脉之上，终年积雪。高度,8,844.43,米，是世界第一高峰，最长达,26,公里。,Do you know how high it is?,Its about 8,844 meters high,the highest mountain in the world.,Its 6,671 kilometers long,the longest river in the world.,The Nile,尼罗河长,6,671,千米，是世界上最长的河流。,Do you know its name?,Do you know how long it is?,It is 1,025 meters deep,the deepest salt lake in the world.,Do you know its name?,The Caspian Sea,Do you know how deep it is?,里海是世界上最大、最深的咸水湖，深为,1,025,米。,It,is about 9,600,000 square kilometers in size,，,the biggest desert in the world.,The Sahara,Do you know its name?,Do you know how big it is?,撒哈拉沙漠是世界第一大荒漠，大约,960,万平方千米,A:-What is,the highest,mountain/,the longest,river/,the deepest,salt lake/,the biggest,desert in the world?,B:-,Talk about these pictures in pairs,Qomolangma,The Nile,The Caspian Sea,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,8,844.43,meters high,.8,844.43,米高,meters high(long,wide,deep),米高（长，,深),。,英语表示“有多,高,（,长,宽,深,）”时，一般将,基,数词,和,数量单位,放在表示,长宽高深,的,形容词前,作状语,。,e.g.The tree is 2,meters,high,.,提问,How+high/deep/long/wide+be+,主语？,e.g.,How,high,is the tree？,注意：,square kilometer=km,2,square meter=m,2,Explaination,英语数字读法,1,百位数 “,hundred(,百,)”,表示,101999,先说几百，再加,and,再加末尾两位数或末尾数。,101 one hundred,and,one 320 three hundred,and,twenty,2,千位数以上 从数字的,右端向左端,数起，每三位数加一个逗号“，”。从右开始，,第一个“，”,表示,thousand,（千）,，,第二个“，”,表示,million,（百万）,，,第三个“，”,表示,billion(,十亿,),。,然后一节一节用几百几十几的方法表示。在这类数词中,hundred,thousand,million,billion,等词一般都用,单数形式。,1,025 one thousand and twenty-five,6,671 six thousand six hundred and seventy-one 9,600,000 nine million six hundred thousand,考考你,568,095,301,700,hundred,tousand,million,billion,十亿,千,百万,百,注意：从后往前，三个数字标一个逗号，读的时候从前读到后,21,354,702,850,378654,105378654,9908650,83706541,7902,How high is,Qomolangma,?,Qomolangma,Qomolangma,Its 8,844.43 metrs high.,The Nile,Its 6,671 kilometers long.,The Nile,How long is the Nile?,The Caspian Sea,The Caspian Sea,It is 1,025 metres deep.,How deep is the Caspian Sea?,The Sahara,It is about 9,600,000 square kilometres in size.,The Sahara,How big is the Sahara?,1b,.,Listen and choose the best answer.,()1.Qomolangma is _ than any other mountain in the world.,A high B higher C the highest,()2.The Sahara is _ desert in the world.,A the highest B the longest C the biggest,()3.The Caspian Sea is _ of all the salt lakes.,A the deepest B the longest,C the cleanest,()4.The Nile is _ river in the world.,A the longest B the biggest C the deepest,B,A,A,C,1b,.,Listen and complete the sentences.,1.Qomolangma is _ than any other mountain in the world.,2.The Sahara is _ desert in the world.,3.The Caspian Sea is _ of all the salt lakes.,4.The Nile is _ river in the world.,higher,the biggest,the deepest,the longest,1c,.,Use the information in 1b to Make conversations.,A:What is the highest mountain in the world?,B:Qomolangma.,A:What is the longest river in the world?,B:The Nile.,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.,Whats the highest mountain in?,Practice,Japan,America,England,Robson,Mount(,罗布森山,),Fuji Mountain(,富士山,),Mount Mckinley,(,麦金利山,),Ben Nevis(本尼维斯,）,Canada,注意,！,Qomolangma is,higher,than,any other mountain,in the world.,注意：此句是比较级表达最高级的含义。,any other+,单数名词 “其它任何一个”,例如：,李明是他们班上最高的一个学生。,Li Ming is taller than any other student in his class.=Li Ming is the tallest student in his class.,注意,！,The Caspian Sea is the deepest,of all the salt lakes.,注意：用于最高级表达范围的介词：,of,in,among,例如：在这三个中,Li Ming,是高的。,Li Ming is the tallest of the three.,Summing up,（总结）,New words:,square-,平方；正方形；广场,meter-,米；公尺,deep-,深的,desert-,沙漠,Phrases:,square kilometre,数词,+metres deep/long/high,any other mountain in the world of all the lakes,Important sentences:,1.The Nile is,6,671 kilometres long,.,2.,Qomolangma is,higher,than any other mountain,in the world.,3.,The Caspian Sea is,the deepest,of all the salt lakes.,单项选择。,()1.The Sahara is _ in the world.,A,.,the biggest desert B,.,biggest desert,C,.,the biggest deserts,D.,biggest desert,s,()2.The Nile is 6,671 _,A,.,kilometers B,.,kilometer long C,.,kilometers long,()3.Tony is,taller,than,_,in his class.,A,.,any,student,B,.,any other student,C,.other,student,D.,any other student,s,()4.-Whats the _,mountain in the world?,-Qomolangma,A,.,high B,.,higher C,.,highest,考考你,Homework,1.Write a passage about your report.,Talk with your partner,talk about your classmates,then make a report like this:,In our class,_ is the tallest boy._ is the tallest girl._ jumps farthest.,2.Make a survey about other places,around the world.Introduce the places.,