北京课改版英语八下《Unit6TheEarthsAtmosphere》word教案和练习

1、名师精编 优秀教案Unit 6 The Earths Atmosphere一、教学内容：Unit 6 The Earths Atmosphere二、教学目标：学问目标：娴熟把握本单元的单词、短语、句型和语法；才能目标：运用本单元所学的学问,描述制造、组成等方面；三、教学重难点：动词的被动语态课文分析及懂得四、语法项目：动词的被动语态五、本单元的重点学问：1. 单词：娴熟把握本单元后单词的音、形、意2. 词组：1 be made from 由 制造2 be made of 由 制造3 tiny drops of water 小水滴4 reduce waste 削减铺张5 20 miles thi

2、ck 20 英里厚6 protect from 爱护 免遭 7 be made up of 由 组成38 threefourths of the gases 4 的气体9 depend on 依靠10 stay alive 生存11 be used to 习惯于12 draw worldwide attention 吸引世界留意13 blow away 吹走14 be full of 布满 15 be used for 用于做某事名师精编 优秀教案句子：1 Clouds are made of tiny drops water. 云是由小水滴构成的；2 The atmosphere surro

3、unds the earth like a blanket. 大气层像毯子一样包裹着地球；3 The atmosphere protects the earth from the suns heat.大气层爱护地球免遭太阳的炙烤；4 The air in the atmosphere is made up of dust and gases. 大气层中的空气是由尘土和各种气体组成；5 More than three-fourths of gas is nitrogen. 多于四分之三的气体是氮气；6 Plants depend on nitrogen to stay alive. 植物依靠氮气

4、来生存；7 More than three-fourths of the gas is nitrogen. 气体中四分之三的气体都是氮气；8 People who travel to the mountains find it harder to breathe. 到山上旅行的人发觉这里呼吸比较困难；9 Big cities are full of cars. 大城市里都是汽车；10 They are used for business and pleasure. 他们是用来商务和消遣的；11 Something should be done about the use of cars in

5、order to have cleaner air. 为了得到更清洁的空气,应当就汽车的使用问题实行措施；六、本单元重点学问讲解：1. The ship is made from waste materials. The T-shirt is made of cotton. be made from 由制成be made of 例如： The book is made of paper and paper is made from wood. The glass is made of glass and glass is made from SiO 2. 2. The air that sur

6、rounds the earth is called the atmosphere. 包围地球的空气被称为大气；be called 被称为 同义词： be named 例如：名师精编 优秀教案The boy is called “ Da Niu” by his classmates.The machine is called “ Washing machine” .That city will be called “ Water City ” .3. It surrounds the earth like a blanket 20 miles thick. 20 miles thick 20

7、英里厚数字 +单位 +形容词例如：1.7 metres tall 一米七高6 metres wide 六米宽20 kilometres away 20 公里远 Our classroom is three metres tall, 7 metres long and 6 metres wide. The Yellow River is 5000 kilometres long. It is the second longest river in China. The river is about 20 metres deep. You mustnt swim in it. Its too da

8、ngerous. 【典型例题】 The ruler is （20 厘米长） . s heat. The book is （5 厘米厚） . The hole is about （50 米深） . The tree is nearly （ 36 米高） . 4. The atmosphere protects the earth from the sunprotect from 爱护 免遭例如： The thick coat protects the body from the cold. The helmet protects the head from the rock. The plast

9、ic cover protects the book from being broken. 5. Nothing could remain alive on the earth without the atmosphere to protect up. Plants depend on nitrogen to stay alive. remain alive 存活stay alive 存活例如：remain silent stay calm remain standing stay awake remain the goal 名师精编优秀教案stay cool remain weak stay

10、 quiet depend on 依靠,依靠 例如：The people in the south depend on the government. The pandas depend on our good care. t depend on your parents forever. You can【典型例题】 The success of the Olympic Game （ 依靠）Chinese people s hard work. The poor children （依靠） those rich peoples support.6. The air in the atmosph

11、ere is made up of dust and gases. be made up of 由 构成,由 组成 例如：The class is made up of 20 boys and 19 girls. The teacher team is made up of 126 teachers. 7. More than threefourths of the gas is nitrogen. three fourths 四分之三 分数的概念：分数由基数词作分子,序数词作分母构成,分母序数词都用复数；例如：1one-third 6six-sevenths 371one-second on

12、e half 2425two and four-fifths 8. People who travel to the mountains find it harder to breathe. sb. find it + adj. + to do sth. 某人发觉做某事怎么样 例如：I find it very interesting to travel to the forest. The boys find it very cool to smoke. 【典型例题】 我们发觉早睡觉有好处；We . 他发觉游过这条河很难；名师精编 优秀教案He found . 9. Air pollution has drawn worldwide attention. draw one s attention 引起某人的留意10. Big cities are full of cars. be full of装满 ,布满 The bag full of books. The room is full of people. The bag full of rice fell off the truck. The basket is f