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1、9B Unit 4 Welcome to the unit The Earth-our home.The blue planet.Do you know any other planets?水星水星 Mercury 金星金星 Venus 火星火星 Mars 木星木星 Jupiter 土星土星 Saturn 天王星天王星 Uranus 海王星海王星 NeptuneMarshelmetair tankdried foodpower packsleeping baggravityn.火星n.头盔n.氧气罐n.干粮n.电源包n.睡袋n.重力Read these words togetherB Dani
2、el is talking to Amy about living on Mars.What would it be like?Work in pairs and discuss with your partner.Use the conversation below as a model.Daniel:What would it be like to live on Mars?Amy:Theres less gravity on Mars.Wed probably need to wear special boots.Daniel:Yes.And we might need sleeping
3、 bags too.Amy:I agree.Also,theres no fruit or vegetables,so we would have to eat dried food.Daniel:Wellthat sounds quite boring!But there would be no pollution on Mars.Amy:I hope so.Hobo:Wow,Ive never thought about travelling into space.Eddie:Me neither.Hobo:How do you like life on Mars?Eddie:I hate
4、 it.Hobo:Why do you hate it?I thought you liked Mars.Eddie:Its this helmet.I cant get to my food.Role play the conversationLife on Mars1.Hobo:Wow,Ive never thought abouttraveling into space.Eddie:Me neither.Me neither 为非正式用法，正式回答为Neither have I.Language points2.How do you like life on Mars?你认为火星上的生活
5、怎么样？How do you like?=What do you think of?你认为怎么样？e.g.How do you like my new look?你认为我的新造型怎么样？Reading Moving to Mars 搬到火星搬到火星Read the article yourselves and finish the questions in B3 on P55.1.a 2.b3.b4.c5.c6.a7.b8.c1.by the year 2100=by 2100 2.become more and more crowded and polluted because of the
6、 rapid increase in population3.Its hoped that.4.start all over again1.到到2100年为止年为止2.由于人口的快由于人口的快速增长变得发拥速增长变得发拥挤，污染日益严挤，污染日益严重重3.有望有望4.重新开始重新开始=because the population is increasing rapidlyPara1:5.be too slow to carry large numbers of passengers to Mars.6.with the development of technology7.travel at
7、the speed of light5.太慢了无法太慢了无法运运送送大量乘客大量乘客去火星去火星6.随着科技的随着科技的发展发展7.以光速运行以光速运行Para2:8.Humans cannot survive without water,oxygen or food.9.be in the form of pills 10.three-eighths of 11.be specially designed prevent themselves from floating off into space8.没有水、空气和食没有水、空气和食物人类无法生存。物人类无法生存。9.以药片的形式以药片的形
8、式10.的八分之三的八分之三 11.经过特别设计防止经过特别设计防止他们自己飘浮到太空他们自己飘浮到太空中去中去Para3-4:分数用法：分数用法：three quarters=three fourths 四分之三四分之三a/one quarter 四分之一四分之一 a half 二分之一二分之一one third 三分之一三分之一 two fifths 五分之二五分之二分分数数的的读读法法：先先分分子子，再再分分母母；分分子子用用基基数数词词，分分母母用序数词；分子大于用序数词；分子大于1，分母要加，分母要加-s。分分数数用用于于“of”结结构构修修饰饰主主语语时时，谓谓语语动动词词要要根根
9、据据of后面被修饰的名词来决定。后面被修饰的名词来决定。Three quarters of the book _ reading by that little boy the other day.(finish)Three quarters of the books _ to be carried to that room right now.(need)was finishedneedstop/prevent/keep sb from doing sth(被被)sb be stopped/prevented/kept from doing sth应该阻止人们污染环境。应该阻止人们污染环境。P
10、eople should _be stopped from polluting the pared with life on the Earth 13.in some ways 14.have a computer at home connected to an interplanetary network15.Life on Mars would be interesting as well as challenging.12.和地球上的生活相比和地球上的生活相比（过去分词作状语）（过去分词作状语）13.在某种程度上在某种程度上14.家里有一台连接到星家里有一台连接到星际网络的电脑际网络的电
11、脑15.火星上的生活不仅有火星上的生活不仅有挑战性，还很有趣。挑战性，还很有趣。Para5-7:区别：区别：in some waysin the wayon the wayby the wayin this waythis way在某种程度上在某种程度上挡路挡路在路上在路上顺便问一下顺便问一下用这种方式用这种方式走这边走这边Discussion Do you like to live on Mars?Why or why not?1.There is no pollution on Mars.2.There are too many people on earth,so we can have more space on Mars.3.There may be no schools on Mars,so we can have more free time.1.We may die because there is no food or water on Mars.2.It is too far away to get there.3.Buying the space clothes costs a lot of money.Possible reasons: