英语人教版八年级下册Unit 7 PPT课件（第一课时）.ppt

Unit7What sthehighestmountainintheworld WushengyizhenMiddleschoolWangAizhong Doyouknowwhatarethey Qomolangma Doyouknowwhatarethey TheNile Doyouknowwhatarethey TheCaspiansea Doyouknowwhatarethey TheSahara 1a Matchthefactsyouknow Payattention 英语数字有个 百 千 百万 十亿 万亿等单位构成 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 前的数字后添加thousand 第二个 前面的数字后添加million 第三个 前的数字后添加billion 然后一节一节分别表示 两个逗号之间最大的数为百位数形式 例如一个大数字 333 333 333读作 threehundredandthirtythreemillion threehundredandthirtythreethousand threehundredandthirtythree 读带小数点的数字时 小数点前面的基数词和前面讲的基数词的读法相同 小数点后的数字则必须一一读出 如 23 0089读作 twentythreepointzerozeroeightnine 1b Listenandcompletethesentences 1 Qomolangmais thananyothermountainintheworld 2 TheSaharais desertintheworld 3 TheCaspianSeais ofallthesaltlakes 4 TheNileis riverintheworld higher thebiggest thedeepest thelongest Grammar 8 844metershigh 8 844米高 metershigh long wide insize 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 QomolangmaishigherthananyothermountainintheworldQomolangmaisthehighestmountainintheworldNomountainisashighasQomolangma Readandrepeat Qomolangma themainpeak 山峰 oftheHimalayas Itisthehighestpeakintheearth Itishigherthananyothermountainintheword Itisabout8844metershigh InTibetanLanguage Qomolangmameans GoddesstheThird 大地之母 TheNileis6 671kilometerslong Thenorthernsectionoftheriverflows 流动 throughdesert fromSudanintoEgyptTheCaspianSeaisthedeepestsaltlakeintheword Theseaislocated 座落于 betweenEuropeandAsia Itis1 025metersdeep NodesertisaslargeasTheSahara ItisinnorthernpartofAfrica Itis9 600 000kilometersinsize Homework WriteanarticleaboutQomolangmaYoucanfindtheinformationfrompage51inyourbook T