八年级英语下册 Unit 7 What's the highest mountain in the world（第4课时）Section B(1a-1d)课件 （新版）人教新目标版

Unit 7 Whats the highest mountain in the world?浙江地区第 四 课 时 Section B (1a1d) weigh的用法作及物动词，表示“称的重量”。eg：Cao Cong thought of a way to weigh the elephant.曹冲想出了一个称大象的办法。作不及物动词，表示“量”，后接数字。eg：She weighs 50 kilos.她的体重是50千克。【拓展】weight名词，意为“体重；重量”。 倍数表达法用形容词表示甲是乙的几倍时，有以下三个句型：倍数形容词/副词比较级thaneg：There hall is four times bigger than my classroom.这个大厅比我们的教室大四倍。倍数as形容词/副词aseg：Asia is four times as large as Europe.亚洲的面积是欧洲的四倍。倍数the size (height， length.)ofeg：The hill is four times the height of that small one.这座山的高度是那座小山的四倍。 用名词表示“量”的倍数时，有以下两个句型：倍数more名词thaneg：There are four times more books in our library than in yours.我们图书馆的藏书(数量)是你们图书馆的四倍。倍数as many/much名词其他aseg：There is three times as much water in this cup as in that one.这个杯子里的水(量)是那个杯子里的三倍。重点短语归纳at birth出生时live up to活到 一、根据句意及首字母提示完成单词。1 The panda can on two legs.2 At ,_a baby panda is about 15cm long.3 An elephant can eat 150 of food a day.4 An elephant many times more than a dog.5 An bear is much stronger than a baby bear.standbirth kilosweighsadult 二、单项选择。( )6.If there is _ pollution， the air in our city will be _ dirtier.A less；more Bmore；much Cless；less Dmore；more( )7.Do you know whether the man _ by the door is Mr.Smith?Sure.Weve known each other for a long time.A stand Bstanding Cstood DstandsBB ( )8.We have two ears and one mouth so that we can listen _ we speak.A as twice much as Btwice as much asC as much as twice Das much twice as( )9.My grandma is a happy and healthy woman and shell live _ 100 years old.A up to Bto Cup Dbeing( )10.The worlds population is growing _ and there is _ land and water for growing rice.A larger；less Blarger；fewer Cmore；less Dmore；fewerBAA 三、根据汉语意思完成下列句子。11为了实现我们的梦想，我们现在必须刻苦学习。We must study hard now in order to 12尼克冒着生命危险把树上的风筝拿了下来。Nick to get the kite from the tree.13我们可以依靠自然界的力量来做成这件事。We can depend on the to make it.14正如你所看到的，这条街总是很拥挤。 ,the street is always crowded.15第一位成功的人将会赢得一次去泰国的免费旅行。The first person will win a free trip to Thailand.achieve our dreamsrisked his life forces of natureAs you can see to succeed