Unit 4（答案在每页的备注栏）.ppt

unit4astronomythescienceofthestarswordsandexpressions 朗读page99unit4词汇 myfatherwasav anddangerousman heatd thecandleintoapoolofwaxinafewminutes florida spopulatione afterworldwarii thecustomofarrangedmarriagesstille inmanycountries anythingtheusdoesislikelytohaveanimpactonag scale thisisbecausethecenterofg ofthehammerisintheironpart theclimateisg becomingdrierandwarmer thef oftheexplosionshookbuildingsseveralblocksaway listentothetapeofthetwoscenesinunit4andunderlinetheimportantpointsonthebook page25readinghowlifebeganontheearthpage30readingavisittothemoon listeningandunderstanding afterthe bigbang theearthwasjustacloud 1 energeticdust whatitwastobecome 2 amysteryuntilthedustbegantoslowlycombineinto 3 ballmovingaroundthesun theproblemwasthattheearthbecamevoilentbecauseitwasnotclear 4 thesolidshapewastolastornot itexplodedloudly 5 fireandrock whichwere 6 timetoproducethewatervapour carbondioxide oxygen nitrogenandothergases 7 weretomaketheearth satmosphere astheearth 8 cool down waterbegantoappearonitssurface nobodyknewthatwasgoingtobedifferent 1 otherplanets 2 go roundthesun waterhadalreadydisappearedfromplantslikemarsorsatelliteslikethemoon 3 itstayedontheearth thisishowtheearthbegantoshow 4 specialqualities manypeoplethinkthatthiswasimportant 5 thebeginningoflife itallowedtheearthtodissolveharmfulgases which 6 become partoftheearth satmosphere 7 theoceansandseas thatmade 8 possibleforlifetobegintodevelop 作业 gravitysolidviolentatmosphereexplodeoxygenharmfuldisappointedspreadmethodsurfacedevelopmentexistglobalpresenceencouragemassforcegraduallypublishingfloatastronomynowthatbreakoutthinkof ascombineintocooldownbedifferentfromescapefrom getclosetoprevent fromcheerupdependongetthehangofwatchsbdo doingintime methodsolidviolentastronomygenerallyplanetprevent fromdevelopmentexplodesurface myfriendliyanpingwasreallyveryinterestedin 1 helikedtowatchchangesinthemoon theonlynaturalsatelliteoftheearththroughhistelescope oneeveninghethoughthesawahugecomet 2 asithitthemoon the 3 ofthemoonproducedalotofdustthatbecame 4 likealargeball itseemedasifitwouldmultiplyandbecomeanew 5 liyanpingthoughthewasseeingthe 6 oftheuniverseuntilhenoticedsomedirtonhistelescope hewasverydisappointed hetoldajokewhichmadehankexplode laughter asthesummerreachesitspeak therewillbeapopulation explode ofbutterflies theaudienceexploded laughter hisbackinjurymaypreventhim play intomorrow sgame educatingnewdriversisimportantforthe prevent ofaccidents thelengthoftimespentexercising depend onthesportyouaretrainingfor theexpensesyouclaimcanvaryenormously depend ontraveldistancesinvolved itwasquitecleartothem theywereatthismomentstandinginthe present ofamaster becauseofthe present ofchemicals manyfishareinedible manypeoplefeelthatthe exist lawdiscriminatesagainstwomen disappoint touristswereturnedawayfromthewashingtonmonumenttoday whichwasclosed repairs itrainedmostofthetimewewereinengland whichwaspretty disappoint the late unemploymentfigures publish tomorrow ihadtoforcemyself get upthismorning firemenenteringthebuilding force backbyflames solet sgiveacheer thekidswho pass theirexams theycheered whentheysawus come along ilookedupattheclouds float inthesky sheturned herhair float aroundherface theareahas large float population therewasamass peoplearoundtheclubentrance theburglarsleftthehouse anawfulmess don taskterrytodoit she llprobablyjustmessit now weknoweachother littlebetter wegetalongfinedon tallowyourproblems dominate yourlife allowyourselvesplentyoftime get totheairport hisfathergiveshimamonthly allow of 200 susangotanallowance herfather thiswasthesecondtimei give encourage newsaboutmyprogress encouragement sallyisstartingtoplaywiththeotherchildren wewanttoencouragebusinesses invest andcreatejobs 作业 听写 solidviolentsurfaceatmosphereexplodeharmfulmethodexistglobalpresenceencourageforcenowthatcooldowngetthehangofcheerupescapefrom getclosetointimedependonprevent from scientiststhinkisthatearthwasdifferentbecause thearrivalofsmallplantsgrowinginthewateron surface scientistsbelievethattakingcarbondioxide theatmosphereandfillingtheair oxygenhelpedlifetodevelop theywerethelastgroupofanimalsandtheyweredifferent theyproducedtheiryoung withintheirbodies smallcleveranimals nowwithhandsandfeet appearedand spread allovertheearth timewentbytheycoveredtheearthandhavebecomethemostimportantanimals theplanet lifewillcontinueontheearthformillionsofyearstocomewilldependon thisproblemcanbesolved icheered immediatelyandfloatedweightlesslyaroundinourspaceshipcabin watch theearthbecamesmallerandthemoonlarger ifyouareright mymasswillbe thanontheearthbecausethemoonissmallerandiwillbeabletomovemore free but itriedtostepforwardifoundi carry twiceasfarasontheearthandfellover wewatched amazedasfire break outontheoutsideofthespaceship theearth sgravityincreased 你说有人愚蠢是什么意思 你迟早能学会做这件事 他以前是靠画画为生 他神不知鬼不觉地走了进来 这支笔是那支笔的三倍长