初中英语人教版八年级下册Section B 1a-1d.pptx

1、,Unit7 Whats the highest mountain in the world?,Section B（1a-1e）,学习重点,1. 本课时重点词组: at birth。 2. 倍数表达法:倍数+比较级+than;倍数+as+原级+as;倍数+the size(length, height.)of.。,Warm-up,1,Presentation,2,Language Points,3,Exercise,4,Compare facts about these two animals. Use the language in the box to help you make sent

2、ences.,Elephant is 350 cm tall weighs 5,000 kilos eats 150 kilos of food a day,Warm-up,Discuss,Panda is 150 cm tall (standing on two legs) weighs 100 kilos eats 10 kilos of food a day,Example sentences: This elephant weighs many times more than this panda.(200 cm taller/shorter, weigh much more/less

3、, eat much more/less, eat many times more),This elephant is 200 cm taller than this panda. This elephant weigh 49 times than this panda. This elephant eat much more than this panda.,Listen and check() the numbers you hear.,100 16 20 50 120 0.1 0.2 150,Presentation,Listen again and complete the sente

4、nces.,1. At birth, a baby panda is about _ to _ kilos. 2. At birth, a baby panda is about _ cm long. 3. A baby panda is not black. It is _ and it has no _. 4. A panda can live up to _ to _ years.,0.1,0.2,15,pink,teeth,20,30,Take turns telling your classmates about pandas.,A: A baby panda cannot see.

5、 B: An adult panda weighs many times more than a baby panda.,Pair work,Here are some facts about koala, use the information above to make sentences.,Koala is 75 cm tall weighs 10 kilos eats leaves sleeps 20 hours a day,Discussion,考点一英语倍数的表达法 1. 这把尺子的长度是那把的三倍。 This ruler is than that one. 2. 亚洲的面积是欧洲

6、的四倍。 Asia is four times Europe. 3. 这座山的高度是那座小山的四倍。 This hill is the height of that small one. 英语倍数表达法有:倍数+比较级+than;倍数+as+原级+as,倍数+the size(length,height.)of。如:“这块大石头的重量是那块的三倍”。有三种表达法: This big stone is three times as heavy as that one. This big stone is twice heavier than that one. This big stone is

7、 three times the weight of that one.,twice longer,as largeas,four times,考点二weigh和weight的用法 1. 这只熊猫重100公斤。 The panda 100 kilos. The of the panda is 100 kilos. 2. 这个女孩想减肥,因为她太胖了。 The girl wanted to because she was too fat. weigh为(填词性),意为;weight为名词,意为,lose weight意为。,weighs,weight,lose weight,动词,重;有重,重量

8、,减肥,巩固练习,Americans eat _ vegetables per person today as they did in 1910.A. more than twiceB. as twice as manyC. twice as many asD. more than twice as many Key： D,巩固练习,Paper produced every year is _ the worlds production of vehicles.A. the three weight ofB. three times the weight ofC. as three times

9、 heavy asD. three times as heavier as Key： B,巩固练习,With the help of the German experts， the factory produced _ cars in 1993 as the year before.A. as twice manyB. as many twiceC. twice as manyD. twice many as Key： C,巩固练习,This ship measures _ that one.A. as twice as longB. as twice long asC. twice long

10、 asD. twice as long as Key： D,巩固练习,After the new technique was introduced， the factory produced _ tractors in 1988 as the year beforeA. as twice manyB. as many asC. as twice as manyD. twice as many Key： D,归纳小结 at短语小结 at first 起先;首先at last 终于;最后at work 在工作;忙于 at a meeting 在开会at table 在用餐 at school 在学校;在上课 at times 有时;偶尔 at a time 每次;一次 at one time 同时;曾经 at once 立刻;马上 at the same time 同时 at that time 在那时 at present 现在;目前 at the moment 此刻;目前 at