英语人教版七年级下册unit7SectionA 1a--2c.ppt

Unit7What sthehighestmountainintheworld SectionA1a 2c 1 square平方2 meter米3 desert沙漠4 deep深的5 population人口6 Asia亚洲7 tour旅行8 tourist旅行者 Studynewwords LookandSay Doyoutheseplaces mountain desert river lake Theworld shighestmountainintheworld Itis8 844metershigh Qomolangma TheCaspianSea TheCaspianSeaisthebiggestlakeintheworld It s1 025metersdeep TheNile TheTheNileisthelogestriverintheworld It sabout6 671kilometerslong Saharaisthebiggestdesertintheworld Yes itisabout9 600 000squarekilometersinsize Sahara TheYangtzeRiveristhethirdlongestriverintheworld thefirstAsianrivers It s6397kilometerslong TheYangtzeRiver ThelongestriverinAsia TheYangtzeRiver Itis6 397kilometerslong 1aMatchthefactsyouknow Listening听力点拨 听前浏览句子 听时注意关键词和数字 1bListenandcompletethesentences Qomolangmais thananyothermountainintheworld TheSaharais desertintheworld TheCaspianSeais ofallthesaltlakes TheNileis riverintheworld higher thebiggest thedeepest thelongest 1c Usetheinformationin1btomakeconversations A Whatisthehighestmountainintheworld B Qomolangma A Whatisthebiggestdesertintheworld B Sahara A Whatisthedeepestsaltlakeintheworld B Caspiansea Pairwork A Whatisthelongestriverintheworld B Nile Lookatsomenumbersandreadthem 6 3005 0005 464300 sixthousandthreehundred fivethousandfourhundredandsixty four fivethoudsand threehundred 2aListenandnumberthefacts 1 4 intheorderyouhearthem 6 3005 0005 464300 TheYangtzeRiverisabout kilometerslongandtheYellowRiveris kilometerslong Chinahasthebiggestpopulationintheworld It salotbiggerthanthepopulationoftheUS Chinaisover yearsold IthasamuchlongerhistorythantheUS TheUSisnoteven yearsold ChinaisalmostasbigastheUS butitisthebiggestcountryinAsia 4 2 1 3 TheYangtzeRiverisabout kilometerslongandtheYellowRiveris kilometerslong Chinahasthebiggestpopulationintheworld It salotbiggerthanthepopulationoftheUS Chinaisover yearsold IthasamuchlongerhistorythantheUS TheUSisnoteven yearsold ChinaisalmostasbigastheUS anditisthebiggestcountryinAsia Listenagainandfillintheblanksin2awiththenumbersinthebox 2b 6 300 5 464 5 000 300 6 3005 0005 464300 1 4 3 2 A DidyouknowthatChinaisoneoftheoldestcountriesintheworld B Yes Idid It smucholderthanAmerica 2c Pairwork Makeconversationsusingtheinformationin2a 1 Chinahasthebiggestpopulationintheworld It salotbiggerthanthepopulationoftheUS 2 ChinaisalmostasbigastheUS anditisthebiggestcountryinAsia 学与思 请你来总结 1 ChinahasalongerhistorythantheUnitedStates 与Chinaisoneoftheoldestcountriesintheworld 这两句话中分别用到了形容词的和形式 当两者或两部分相比较出现这个词时 用形容词的形式 当在某一个范围 如intheworld中表示 最 时 用形容词的形式 并且前面要加定冠词 比较级 最高级 than 比较级 最高级 the 注意 1 多音节形容词 副词的比较级前加more 最高级前加most 2 可以用来修饰比较级的几个词 much even alittle abit alot练习 1 Jimis tall thanBen 2 Sheis short girlinourclass 3 Tomruns fast ofusfour 4 Heis careful studentinhisclass taller theshortest thefastest themostcareful 2 ChinaisalmostasbigastheUs butitisthebiggestcountryinAsia 1 as 形容词或副词的原级 as 表示双方在某个方面一样 既可以用在肯定句里 也可以用在否定句中 如 Sheisastallasme 她和我一样高 HerunsasfastasPaul 他跑得和保罗一样快 notas 形容词或副词的原级 as 表示双方在某个方面不同 如 HisEnglishisnotasgoodashers 他的英语不如她的好 2 biggest是形容词big的最高级 意为 最大的 如 ThisisthebiggestanimalthatIhaveeverseen 这是我见过的最大的动物 形容词的最高级用于表示三者或三者以上 人或物 的比较中 有一个在某方面超过其他人或物 最高级的前面要加定冠词the 后面可带of in短语来说明比较的范围 如 It sthemostexpensivecarintheworld 它是世界上最昂贵的汽车 Whosedrawingisthebestofall 在所有画当中谁的画最好 3 population population意为 人口数量 谓语动词要用单数形式 询问人口数量时要用 What sthepopulationof 提问 而不用howmany或howmuch等提问 表示人口 多 要用large或big 表示人口 少 要用small 4 Qomolangmais8 844 43metershigh Itis metershigh long wide 它 米高 长 宽 英语表示 有多长 宽 高 时 一般将数词和数量单位放在表示长宽高的形容词前作状语 Exercises1 Qomolangmaismountainintheworld A highB higherC thehighest2 Ourclassroomislargerthantheirs AmoreBmuchCmanyDvery3 thepopulationofChina AWhat sBHowmuchCHowmany4 Howtallisthetree It sabout AfivemeterBfivemeterstallCfive meter