Unit 10 Did you know? 课件

课件34张PPT。Unit 10 Did you know?一、单元要点1．知识概述
（1）掌握本单元出现的生单词、词组和句型。
（2）掌握形容词最高级的用法。
（3）初步了解过去时态。2．单元重点词汇world, tallest, metre, shortest, was, Britain, giraffe, land, animal, sailfish, travel, per, hour, Australia, mountain, the Mount Everest, river, the Nile, snowman, whale, ton, strongest, weakest, centimetres, difficult.3．交际用语（1）The Great Wall is the longest wall in the world.
（2）—How tall are you?
　　 —I am one-hundred and forty-nine centimetres tall.
（3）What can you easily do when you are very tall?
（4）What can’t you easily do when you are very tall?
（5）Which animal is bigger?
（6）—Which animal is the biggest of the three?
　　 —The sheep is the biggest.二、单元学习1．Listen, number, point and read.
（1）New words and expressions.The giraffe is the tallest land(陆地） animal.It`s 5.5 meters tallThe tallest man in China is 2.36 metres tallThe fastest plane is in the USA .it trsvels at 3.530 km per hourThe biggest animal is the blue whale.It is 30 meters long and 150tonsThe biggest plants are treesThe fastest car is in Britain. It travels at 1020 km per hour.The fastest fish is the sailfish. It can travel at 100 km per hour.The shortest woman in China was 79cm tall when she was 19The Great Wall is the longest wall in the world .It is 6.350 km long.The highest mountain is the Mount Everest.The tallest snowman was 22 metresThe longest river is the Nile .It is 6.673 km long.（2）New sentences.①The Great Wall is the longest wall in the world.
②The tallest man in China is 2.36 metres tall.
③The shortest woman in China was 79 cm tall when she was 19.此句是be动词在一般过去时中的变化，规律为：
am和is在一般过去时中变为was；
are在一般过去时中变为were。
　　一般过去时意义：表示过去某个时间发生的事情或存在的状态，或过去经常发生的动作。过去式的形式由动词的过去式表示；动词be除第一，第三人称单数用was，其余都用were。④The fastest car is in Britain. It travels at 1,020 km per hour.

⑤The giraffe is the tallest land animal. It is 5.5metres tall.

⑥The fastest fish is the sailfish. It can travel at 100 km per hour.旗鱼
⑦The fastest boat is in Australia. It travels at 556 km per hour.
⑧The fastest plane is in the USA. It travels at 3,530 km per hour.⑨The biggest plants are trees.

⑩The highest mountain is the Mount Everest.埃佛勒斯峰
⑾The longest river is the Nile. It is 6,673 km long.
⑿The tallest snowman was 22 metres.

⒀The biggest animal is the blue whale. It is 30 metres long and 150 tons.（3）Pronunciation.① 字母C发[k]时，舌后部隆起，紧贴软腭，形成阻碍，然后突然放开，让口腔内气流冲出，爆破成音。发音时声带不振动。

e.g. cat　cut　cold　camp　country
②字母C发[S]时，舌端靠近齿龈，气流由舌端齿龈间送出，形成摩擦音。发音时声带不震动。

e.g. city　cell　celebrate　ceiling2．Read and add.3．Listen and chant.How tall are you?
I am one hundred and forty-nine centimetres tall.
本句中“How tall are you?”是用来询问别人的身高。
centimetre意为“厘米”。
e.g. The boy is 150 centimetres tall.4．Listen, read and answer.difficult意为“困难的”。
e.g. Every beginning is difficult.
万事开头难。
What can you easily do when you are very tall?
当你很高时你可以轻松地做什么？
I can easily reach things which are high up. I can help a cat off the tree without using a ladder. I can easily see football matches or I can pick apples from apple trees.
What can’t you easily do when you are very tall?
当你很高时你不可以轻松地做什么？
I can’t buy the right shoes, clothes or even the right bed. I can’t stand on a bus or sit in a taxi…5．Look, find out and write. How tall are they?6．Check, draw, write and find out.1）Find out how tall the people in your class are.
2）Then make a graph showing the shortest to the tallest.
7．Look and say the differences.（1）In Picture A, there are two trees, but in Picture B, there are four trees.
（2）In Picture A, there is a bird, but in Picture B, there are two birds.
（3）In Picture A, there is no cloud, but in Picture B, there is a blue cloud.
（4）In Picture A, there are three basketball, but in Picture B, there are two basketball.
（5）In Picture A, there is a boy hold a cup, but in Picture B, there is a girl hold a cup.
8．Ask and answer in pairs.The dog is bigger.
The sheep is the biggest
of the three.
Sam is taller. (This person is taller.)
Paul is the tallest of the three.May is thinner.
Ann is the thinnest of the three.The rabbit is quicker.
The tiger is the quickest of the three.The white sheep is fatter.
The red sheep is the fattest.The red dress is longer.
The green dress is the longest of the three.9．Look, read and write.三、单元小结?1．Words.2．New sentences.（1）The Great Wall is the longest wall in the world.
（2）The tallest man in China is 2.36 metres tall.
（3）The fastest car is in Britain. It travels at 1,020km per hour.
（4）The highest mountain is the Mount Everest.
（5）The biggest animal is the blue whale. It is 30 metres long and 150 tons.