What'sthehighest(教育精品).ppt
the longest river in the world.The NileThe Caspian Sea the deepest salt lake in the world.the biggest desert in the world.The Sahara 八年级人教版 下册Section A(Ia-1c)学习目标 1.能掌握以下单词和句型：square meter deep desert Qomolangma the Caspian Sea the Sahara the Nile 句型：Whats the highest mountain in the world?Qomolangma 2.复习并且熟练运用形容词和副词的比较级和最高级.3.掌握多位数的表达法和读法.学习重点：能熟练地运用形容词和副词的比较级和最高级 的用法。学习难点：掌握多位数的表达法和读法.自学互动，适时点拨学习互动一1.写出下列形容词的比较级和最高级high_ _ long_ _ big_ _ deep_ _higherhighestlongerlongerestbiggerbiggestdeeperdeepest2.Can you read these numbers?300 1,0254,000 6,671 50,000 8,844.43600,000 9,600,0007,000,000 hundred thousand million 百 千 百万知识点拨复杂数字的读写规律1）.小数点读point 如 25.7 读作 twenty-five point seven2）.百位跟十位之间通常用and连接如 138 one hundred and thirty-eight3）.从后往前每三位数点一个逗号，依次读作 thousand million 9,600,000 nine million sixty hundred thousand 学习互动二1.根据预习，完成课文里的1a 部分1a Match the facts you know.Qomolangma about 9,600,000 square kilometers in sizeThe Sahara1,025 meters deepThe Caspian Sea6,671 kilometers longThe Nile8,844.43 meters highExplanation度量单位表达方法：1）数词+meters/kilometers/+high/deep/long/wide.如 10 meters high/long/deep/wide.2)x x 平方米=x x square meters如 11 square meters.3)度量单位的提问方式：How+high/deep /long/wide+be+主语-How high is the Qomolangma?-Its 8,844.43 meters high.A:How high is Qomolangma?B:Its 8,844.43 meters high.A:How big is the Sahara?B:Its about 9,600,000 square kilometers in size.学习互动三学习互动三:Listening(1b)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.higherthe biggestthe deepestthe longestPractice in pairs like this:A:What is the highest mountain the world?B:Qomolangma z。xxk课堂检测1、把下列句子译成英语1)最高的山：2）最深的海：3）97.5米高：4）6，670公里长：the highest mountain the deepest seaninety-seven point five meters high six thousand six hundred and seventy kilometers long2、用所给词的适当形式填空1)Qomolangma is _ (high)mountain in the world.2)Jack is over 1.8 meters.He is _ (tall)boy in our class.3)Summer is _ (hot)season of a year.4)Who is _ (brave)Tom or Bruce?-I think Tom is.He always stays at home alone at night.5)A cow is much _ (heavy)than a sheep.the highestthe tallestthe hottestbraverheavierThank you
