高考英语一轮复习 Unit4 Astronomy：the science of the stars课件 新人教版必修3 课件VIP免费

必修3必修3话题1.Scienceofthestars(恒星科学)2.Thedevelopmentoflife(生命的发展)3．Spacetravelandgravity(太空旅行和重力)功能Instructions(指示)语法Nounclausesasthesubject(主语从句)重点单词astronomy，atmosphere，system，chain，theory，globe，violent，unlike，spaceship，oxygen，harmful，exist，presence，puzzle，gravity，satellite，climate，crash，pull，float，mass必修3重点短语intime，layeggs，givebirthto，inone'sturn，prevent...from，blockout，cheerup，nowthat，breakout，watchout重点句型1.Whatitwastobecomewasuncertainuntilbetween4.5and3.8billionyearsagowhenthedustsettledintoasolidglobe.2．Thisproducedachainreaction，whichmadeitpossibleforlifetodevelop.3．“Ohdear，”Icried“，walkingdoesneedabitofpracticenowthatgravityhaschanged.”4．ButwhenItriedtostepforward，IfoundIwascarriedtwiceasfarasontheearthandfellover.必修31．existvi.存在；生存(无被动式和进行时)归纳拓展(1)Thereexists/existed...某地有……；存在……existin存在于……existon靠……生活/生存(2)existencen．存在；生存beinexistence存在comeintoexistence开始产生，成立bringintoexistence使产生(3)existentadj.存在的；现行的必修3Wecan'texistwithoutfoodorwater.没有食物和水我们就不能生存。IcanhardlyexistonthewagethatI'mgetting.我靠我挣的工资简直难以糊口。Whendidtheworldcomeintoexistence?世界是什么时候开始存在的？Thereexistsagoodwaytosolvetheexistingproblemingeography.有一个解决目前地理问题的好办法。必修3【链接训练】①Hedoesn'tbelieveinthe________ofGod.A．lifeB．existC．existenceD．exhibition【解析】existence“存在”，符合题意。exist是动词，不能用在此处。句意为：他不相信有上帝存在。【答案】C必修3②Aseveryoneknows，sincetheCommunistPartyofChina________in1921，greatchangeshavetakenplaceinChina.A．cameintoeffectB．cameintoforceC．cameintoexistenceD．cameintopower【解析】考查动词词组辨析。句意为：众所周知，自从1921年中国共产党成立后，中国发生了巨大的变化。comeintoexistence“开始产生，成立”，符合题意。comeintoeffect“生效，执行”；comeintoforce“开始生效”；comeintopower“上台，掌权”。【答案】C必修32．puzzlen．[C]难题，谜vt.使迷惑归纳拓展(1)beinapuzzle感到困惑(2)puzzlesb.使某人迷惑puzzleout仔细思考，设法想出答案(3)puzzlingadj.令人困惑的puzzledadj.感到困惑的必修3PeoplewereinapuzzleaboutthecrashinwhichthepresidentofPolanddied.人们对总统坠机身亡这一事件感到困惑。Theirreasonfordoingitisstillapuzzletome.他们为什么要做此事我仍莫名其妙。Whatpuzzlesmeiswhyheleftthemeetingwithouttellinganyone.令我困惑不解的是，他为什么没告诉任何人就从会议上离开了。必修3【链接训练】Facingthe________situation,thesalesmanagerlooked________.A．puzzling；puzzledB．puzzling；puzzlingC．puzzled；puzzledD．puzzled；puzzling【解析】句意为：面临着令人困惑的局势，销售部经理看起来迷惑不解。第一空形容situation的特点用puzzling；表示人困惑时用puzzled。故正确答案为A项。【答案】A必修33．pulln．&vt.拉(力)；拖；牵引(力)归纳拓展pullapart拉开；分开；扯断pullaway(汽车)开走；把……抛在后面pullin进站；吸引pullout离站；(使)摆脱困境pullover靠路边停车pullthrough恢复健康；完成(十分困难的事)pullup使车停住pulldown贬低(人)；拆毁(建筑物)必修3Hegaveastrongpullattherope.他用力拉了拉绳子。Tomjumpedontothebusjustasitwaspullingaway.公共汽车正要开走时，汤姆跳了上去。Hesucceededinpullingthroughthedifficulty.他平安地渡过了难关。Theworkersaretryingtopulldownthedangeroushouses.工人们正在努力拆毁那些危房。必修3【链接训练】She________hercarsuddenlyataredlightandInearlyhithercar.A．pulledupB．pulleddownC．p...