1、Evolution of life on the earthWhat is the cartoon about?How did life start on the earth?Chinese LegendsPangu separated the sky from the earth.Nuwa created man from the clay(粘土).Western cultureGod created man manPicture 1:Picture 2:Pre-readingTask1:PredictionThe evolution of life on the earth.fire,wa
2、ter,rock,explode.zxxkReading:helpful words(in students worksheet):Words about matters:1.atom原子2.dust灰尘3.globe(ball)球 4.carbon碳 5.nitrogen氮6.water vapour水蒸气7.gas气体8.atmosphere 大气层，气氛 9.acid酸10.oxygen 氧11.carbon dioxide 二氧化碳Words about animals:1.shellfish水生有壳动物2.insect 昆虫3.amphibian(be able to live on
3、 land and in the water)两栖动物4.reptile 爬行动物 5.dinosaur恐龙-6.lay eggs 下蛋7.mammal哺乳动物-8.give birth to young baby animals产生，分娩zx.xkReadingTask 1:Fast reading skimming and matchingParagraph 1 Paragraph 2 Paragraph 3 Paragraph 4 Paragraph 5 A.The importance of waterfor life B.The development of plants and a
4、nimals on the earth C.The formation of the earthD.The formation of the universe E.The arrival of humans and their impact on the earthParagraph 1The universe began with _.Task 2:careful readinga Big BangParagraph 2Finish the flow chart in the work sheet.Big bangwaterFire and rockA cloud of dustSolid
5、ballatmosphereParagraph 3What made it possible for life to develop?A chain reactionzxx/kParagraph 4Find life forms in the development of plants and animals,finish the flow chart in the worksheet.lifeplantsanimalsoxygenLand animalsforestsreptilesmammalsSmall plantsShellfish and fishGreen plantsinsect
6、samphibiansdinosaurs1.What appeared and spread all over the earth?Z.x.xkParagraph 5Some small clever animals2.What problem is caused by human beings?They are not looking after the earth very well.3.Whats the result of too much carbon dioxide?The earth may become too hot to live on.What can we do for
7、 the earth?1.We can plant more trees.2.We should save water.3.Wed better ride a bike or motorbike rather than ride a car.4.We can recycle rubbish.5.We can make full use of solar energy.6.Reduce,reuse and recycle.1.Surf the internet and find more information about protecting the earth.2.Try to retell the development of life on the earth in next class.Homeworks:
