1、the science of the starsthe science of the starsUnit 4 1.1.Do you know how many Do you know how many are are there in the there in the?2.Which planet has life?2.Which planet has life?3 3.Each culture has its own ideas about howEach culture has its own ideas about how life began on earth.life began o
2、n earth.Could you tell me some Could you tell me some about the about the of life in Chinese of life in Chinese culture?culture?Leading inIn chinse culturePNIn western cultureG Pangu separated(分分离离)the sky from the earth.His body turned into all kinds of things in the universe.skyearth盘古开天辟地盘古开天辟地Nv
3、wa created human beings from the clay.女娲造人女娲造人In western cultureG In chinse culturePNGod created the world and all living things生物生物 in six days.Do you know what a scientific idea is?uWhat is the title?What is the title?uLook at the pictures.Predict Look at the pictures.Predict what the reading will
4、 be about?what the reading will be about?PredictionWatch a video about the Read the text quickly and match the for each.skimmingA widely accepted theory about the formation of the universe universe.The formation of the earthThe importance of water and lifeThe development of plants and animalsThe arr
5、ival of humans and their impact影响影响 on the earthRead the text quickly and match the main idea for each paragraph.skimmingA widely accepted theory about the formation of the universe universe.The formation形成形成 of the earthThe importance of water and lifeThe development of plants and animalsThe arriva
6、l of humans and their impact影响影响 on the earthA.A.narration(narration(记叙文记叙文)B.exposition(B.exposition(说明文说明文)C.argumentation(C.argumentation(议论文议论文)D.D.practical wrtingpractical wrting(应用文应用文)A.place B.time C.people D.eventA.place B.time C.people D.eventuWhat is the What is the writing writing style
7、 of this text?style of this text?uIn what order is the text developed?In what order is the text developed?1.knows how life began on the earth exactly?A.Scientists B.Astronomers C.nobody D.aliens(外星人外星人)2.How did according to a widely accepted theory?careful reading 3.How were created?A.atoms combine
8、d.B.water combined.C.clouds of dust combinedPara.1Para.2Big Bangit exploded loudly with 3._ and 4._A solid 2._Produced the water vapour,carbon dioxide,nitrogen and other gases-the earths 5._the earth6._Water began to 7._a cloud of 1._ dustglobefire rockatomspherecooled downappear2.How did water help
9、 life develop?A.It produced a lot of heat.B.the continued presence of water.C.Water disappeared.D.It was the oldest planet.1.What was the earth different from the in the solar system?Para.3The importance of water and life1.insects and amphibians(on land and in water)2.reptiles3.Early shellfish and a
10、ll sorts of fish4.huge animals:dinosaurs5.small plants on the surface of water 6.green plants on land7.mammals(including humans)Put them in a correct order!Para.45.Small plants in the water3.Shellfish and fish1.Insects and amphibians2.Reptiles4.Dinosaurs7.Mammals6.Plants on land1.What does“”refer to
11、?2.What problem is caused by these clever animals?3.What is the result?4.From the last paragraph we can infer that the author is _.A.confident B.sad C.concerned D.angryPara.51.What does“”refer to?2.What problem is caused导致导致by these clever animals?3.What is the result?4.From the last paragraph we ca
12、n infer that the author is _.A.confident B.sad C.concerned D.angryPara.5Humans/human beingsThe arrival of humans and their impact影响影响 on the earthDiscussion What will happen when we put too What will happen when we put too much COmuch CO2 2 into the atmosphere?into the atmosphere?the earth may becom
13、e too .Result:hotglobal warmingpolar ice will _sea level will _risemeltWhat can we do to pretect?Plant treesUse public transportation:walk,ride a bike or take a busRecycle回收回收 bottles,newspapaers,plastic bagsDevelop new and clean energy能源能源Purify净化净化airSave energy：water，electricity,etcreduce rubbish
14、Heal the worldHomework Write a short passage like thisWrite a short passage like this If people cant stop putting too much co2 into the air,the temperature/the sea level will become_.Animals and human will_.In order to solve the problem(in my opinion)I think,we can _because _in addition_.In a word,we must_.
