Unit4LifeonMars第二课时Reading(1)◇目标导航◇类别课时要点重点单词pollutedadj.被污染的rapidadj.快的,迅速的increasen.增加passengern.乘客uncomfortableadj.使人不舒服的;不舒适的tastyadj.味道好的speciallyadv.专门地,特地comparevt.&vi.比较challengingadj.挑战性的rapidlyadv.快地,迅速地重点短语atpresent现在floatoff漂浮insomeways在某些方面befullof充满makefriendswith交朋友tie...to...把……和……捆起来getlost迷路makealistof列……的清单重点句型1.Atpresent,ourspacecraftaretooslowtocarrylargenumbersofpassengerstoMars.目前,我们的宇宙飞船太慢了,无法运送大批的乘客去火星。2.Peoplewouldhavetowearbootsthatarespeciallydesignedtopreventthemselvesfromfloatingoffintospace.人们必须穿上特制的靴子以阻止自己飘入太空。3.ThegravityonMarsisonlyaboutthree-eighthsofthatontheEarth.火星上的重力大约只有地球上的八分之三。4.ComparedwithlifeontheEarth,lifeonMarswouldbebetterinsomeways.与地球上的生活相比,火星上的生活在某些方面要更好些。5.Everystudentwouldhaveacomputerathomeconnectedtoaninterplanetarynetwork.每个学生家里都会有一台电脑与星际网络连接。教学重点1.让学生掌握基本的四会单词、短语及句型。2.让学生了解未来在另一个行星上生活的情境。教学难点1.让学生识别并列出地球生活与火星生活的不同之处。2.培养学生的阅读技巧,让学生掌握文章内容,了解文章的框架和结构。◇教学过程◇预习指导一、方法指导预习Page52~53的文章,并预习课后新单词,自主背默。二、预习检测Ⅰ.汉译英1.现在atpresent2.乘宇宙飞船inspacecraft3.漂浮floataway4.在某些方面insomeways5.使某人做某事makesbdosth6.充满befullof7.总数thetotalnumberof8.交朋友makefriendswith9.飞到……flyto10.把A和B捆起来tieAtoB11.迷路getlost12.列……的清单makealistofⅡ.根据句意及汉语提示完成单词1.Therearethousandsofstarsandplanets(行星)inspace.2.Hecameherespecially(专门地)togetagrammarbook.3.Withtherapid(快速的)developmentofscienceandtechnology,ourlifeismoreandmoreconvenient.4.Moreandmorepassengers(乘客)wouldliketotaketheundergroundinsteadofdrivingcars.5.Someactionsmustbetakentocontroltheincrease(增加)ofthepopulationintheworld.课堂教学Step1情景导入老师利用图片呈现本课新单词与短语,帮助学生掌握单词释义。Step2阅读前1.快速浏览PartA的文章,讨论下面的问题。OurEarthisbecomingmoreandmorecrowdedandpolluted,sowherecanwestay?2.小组合作,完成Page54中PartB1和PartB2的练习。Step3阅读中1.听PartA的录音,然后快速阅读,小组合作,回答下列问题。(1)WhydopeopleneedtomovetoMars?TheEarthisbecomingmoreandmorecrowdedandpolluted.(2)HowlongdoesittaketoflytoMarsatpresent?Itwouldtakemonths.(3)WhatwouldtheflighttoMarsbelikebytheyear2100?Thejourneymighttakeabout20minutesinspacecraftthattravelatthespeedoflightandthejourneymightbeuncomfortable.(4)WhatwouldfoodonMarsbelike?Foodwouldbeintheformofpillsandwouldnotbesotasty.(5)WheremightpeopleliveonMars?Peoplemightliveinhouseswithhugecomfortablerooms.(6)WhatwouldschoolsbelikeonMars?Therewouldbeonlineschoolswith“e-teachers.”(7)WhatdoesthewriterthinkoflifeonMars?LifeonMarswouldbeinterestingaswellaschallenging.2.再次快速阅读,划分文章的篇章结构,找出各段的关键词。3.老师提出问题让学生进一步思考。参考示例T:WhatdoesthewriterthinkofthelifeonMars?S:Hethinksitwouldbeinterestingaswellaschallenging.T:Doyouagreewithhim?Whyorwhynot?Step4阅读后1.让学生自由朗读短文。2.小组合作,讨论归纳火星生活的优缺点。3.根据关键词,复述课文。限时训练根据句意用所给词的适当形式填空1.Thereislessairpollution(pollute)intownthaninthecity.2.Weshouldkeepwaterfrombeing(be)polluted.3.Bynextweek,wewill/aregoingtovisit(visit)threepl...
