七上Unit 4 Topic 2 Section C教学课件.ppt

Unit4AmazingScienceTopic2I mexcitedaboutthethingsthatwillbediscoveredinthefuture SectionC DoyouknowanythingaboutMars solarsystem MarsisthefourthplanetfromthesuninoursolarsystemandisnamedafterMars theRomangodofwar Mars theRomangodofwar 太阳系 罗马战神 1aReadandunderstand LookatthepicturesandpredictwhichstatementsaretrueaboutMars Thenreadthepassagequicklyandchecktheanswers 1 Marslookslikearedball 2 ThetemperatureonMarsisveryhigh 3 Marsismuchlargerthantheearth 4 Marsistoofarawayforustoreach T F F F 1bRead1aagainandwritedowntheinformationaboutMars 53 aswideasthatoftheearth redandorange aball duringspringandsummer strongstormstemperature between 138 and28 abouttwo fifthsasstrongasitisonearth about228millionkilometers halfasbigas是 的一半大twiceaslongas是 的两倍长Thisbagisthreetimesasheavyasthatone Mystudyisaboutthree fourthsasbigasmybedroom HiKangkang Ithasbeentwodays since from welandedonMars It cost took usmorethantwoyearsto reach get here Generally thejourneywentwell butthelivingconditionswere quiet quite badduringthejourney Wehadtoproducemostofthefoodinthespaceship What smore What sworse ourwatersupplieswereverylow Wehadtolimittheuseofwaterduring those these days Sowehadashowereverysixweeks Wewillspendanothersevenhundredandsixty threedaysonMars How What alongtime Ioftenmissthefamily buttheexcitementofbeingonMarsisworthit Wishmeluck Yours UncleStephen since took get quite What sworse those What 2Kangkang sunclesentane mailtohimfromMars Choosetherightwordstocompletetheletter DearUncle I mverygladtoreceiveyoure mail andIknowthatthelivingconditionswerequitebadduringyourjourney IaminterestedintheinformationaboutMars Canyoutellmemoreaboutit HowabouttheweatheronMars Isitverycold Whatkindoftransportationdoyouusethere Iamlookingforwardtoyoure mail Goodluck Yours Kangkang Youcanwriteitlikethis Summary Welearn 1 Somewords storm weigh journey2 Somephrases nameafter as as atadistanceof searchfor3 Somesentences 1 Itsdiameteris53 aswideasthatoftheearth 2 IthasbeentwodayssincewelandedonMars Wecan 1 TalkaboutsomethingmoreaboutMars 2 Writebackane mail Read1a Memorizetheusefulexpressionsandkeysentenceswhichwelearnedtoday FinishSectionCinyourworkbook ReviewSectionsA C Assignment Thankyou n 风暴 暴 风 雨 Itismuchsmallerthantheearth Itsdiameteris53 oftheearth s 直径 Duringspringandsummer thestrongstormscancoverthewholesurfaceofMars Thegravityonitssurfaceisabout40 asstrongasitisonearth 引力 重力 Listento1aandanswerthequestions 1 WhatdoesMarslooklike Itlookslikearedandorangeball 2 HowfarisMarsfromthesun It sabout228millionkilometersawayfromthesun 3 What sthetemperatureonMars Itisbetween 138 and28 1aReadandunderstand 1 Itsdiameteris53 aswideasthatoftheearth 它的直径是地球直径的53 2 ThegravityonthesurfaceofMarsisabouttwo fifthsasstrongasitisonearth 火星表面的引力大约是地球引力的五分之二 倍数 分数 as adj as 的几倍3 Marsgoesaroundthesunatadistanceofabout228millionkilometers 火星在距太阳约228000000千米处环绕着太阳转 atadistanceof 有 距离 LanguagePoints 4 ScientistsarestillsearchingformoreinformationaboutMars 科学家们正在对火星进行更多的探索 searchfor 表示没有 被搜索的对象 只有 寻找的目标 如 Allnighttheysearchedforthelostboy search for 表示搜查某一对象的目的是要找到什么 强调有具体的目标 如 ShesearchedmanyshopsforJim sgift search意为 在 搜查 或 搜身 是个及物动词 后面直接跟 被搜查的对象 如 Mr Smithsearchedeveryroominthehouse LanguagePoints Keywords Mars fourth benamedafter diameter aswideas atadistanceof tell because brightred ball storms gravity temperature oxygen eightmonths closestto searchingfor Retell1a Mars the planetofthesolarsystem goesaroundthesunata ofabout228millionkilometers Its is53 aswideasthatoftheearth Itlookslikea and ball It sverybeautiful Butduring and strong cancoverthewhole ofMars Thegravityonthesurfaceofitisabout as asitisonearth Exercise fourth distance red orange spring summer storms surface two fifths strong diameter 1cDiscussthecrazyquestionswithyourpartnerandstateyourreasons 1 DoesMarshaveagoodclimateforplants 2 IsMarsausefulplacetodryfruit 3 IsMarsagoodplaceforhumanbeingstolive 4 IsMarsacomfortableplaceforheavypeople Read2andanswerthequestions 1 Whoisthise mailfromandto ItisfromUncleStephentoKangkang 2 Howlongdidittakethemtogetthere Morethantwoyears 3 Dideverythinggowellduringthejourney No itdidn t Whatareyougoingtobewhenyougrowup Why clothingfoodanddrinks