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Unit4Astronomy:thescienceofthestars考点一-2-【识记阅读单词】1.atomn.原子2.billionpron.&n.&adj.英万亿;美十亿3.globen.球体;地球仪;地球4.carbonn.碳5.atmospheren.大气层;气氛6.fundamentaladj.基本的;基础的7.acidn.酸8.chainn.链子;连锁;锁链Ⅰ.单词由简到难,水到渠成Thefirststepisasgoodashalfover.考点一-3-9.multiplyvi.&vt.乘;增加10.oxygenn.氧11.dioxiden.二氧化物12.gravityn.万有引力;重力13.satelliten.卫星;人造卫星14.climaten.气候15.crashvi.&vt.碰撞;坠落16.spaceshipn.宇宙飞船考点一-4-【拼写高频单词】1.systemn.系统;体系;制度2.theoryn.学说;理论3.unlikeprep.与……不同;不像4.thusadv.因此;于是5.puzzlen.谜;难题vt.&vi.(使)迷惑;(使)为难6.pulln.&vt.拉(力);拖;牵引力7.floatvi.&vt.(使)浮动;(使)漂浮n.漂浮物考点一-5-【拓展核心单词】1.astronomyn.天文学→astronautn.宇航员→astronomern.天文学家2.religionn.宗教;宗教信仰→religiousadj.宗教的;虔诚的3.violentadj.猛烈的;激烈的;强暴的→violentlyadv.强烈地→violencen.暴力4.harmfuladj.有害的→harmn.伤害;危害vt.伤害;危害→harmlessadj.无害的5.existvi.存在;生存→existencen.存在;生活(方式)6.biologyn.生物学→biologistn.生物学家7.gentleadj.温和的;文雅的→gentlyadv.轻轻地;温柔地,温和地8.physicistn.物理学家→physicsn.物理学→physicaladj.物理的;物理学的考点一-6-1.harmful和harm用法扫描doharmtosb./dosb.harm对某人有害beharmfultosb./sth.对某人/某物有害Thereisnoharmindoingsth./Itdoesnoharmtodosth.做某事并无害处(反而可能带来某些好处)。2.“良好性格”的描写gentle温柔的easy-going随和的outgoing外向的generous慷慨的考点一-7-3.“太空”单词集锦astronomern.天文学家astronomyn.天文学astronautn.宇航员satelliten.卫星orbitn.轨道universen.宇宙gravityn.万有引力planetn.行星spaceshipn.宇宙飞船atmospheren.大气层考点一-8-4.由thus想到的therefore因此however然而even甚至still仍然ever曾经never从不考点一-9-【识记】1.solarsystem太阳系2.carbondioxide二氧化碳3.layeggs下蛋4.givebirthto产生;分娩5.blockout挡住(光线)6.cheerup感到高兴;感到振奋7.watchoutfor密切注意;当心;提防Ⅱ.短语化难为简,轻松记忆Learntowalkbeforeyourun.考点一-10-【默写】1.及时;终于intime2.轮到某人;接着inone’sturn3.阻止;制止prevent...from4.既然nowthat5.突发;爆发breakout考点一-11-1.cheer常用短语cheeron向……欢呼,为……鼓劲加油cheerup(使)高兴起来,(使)振奋起来Cheers!干杯!2.“小心;当心”高频短语becareful小心watchoutfor小心;当心lookout当心takecare小心3.birth用法小结givebirthto生;引起;产生atbirth出生时bybirth在血统上frombirth自出生以来考点一-12-1.Theywereintimetoproducecarbondioxide,nitrogen,watervapourandothergases,whichweretomaketheearth’satmosphere.它们最终产生了二氧化碳、氮气、水蒸气和其他多种气体,从而形成了地球的大气层。考点提炼betodosth.“计划干某事,注定干某事”。2.Thisproducedachainreaction,whichmadeitpossibleforlifetodevelop.这就产生了一系列的反应,使得生命就有可能发展了。考点提炼“makeit+adj.+forsb./sth.+todosth.”结构中,it是形式宾语,代替不定式结构。Ⅲ.高频句型分析探究,融会贯通Nothingisimpossibletoawillingheart.考点一-13-3.Wewatched,amazedasfirebrokeoutontheoutsideofthespaceshipastheearth’sgravityincreased.我们惊奇地看着,随着地球的引力增加,宇宙飞船的外层燃烧起火。考点提炼第一个as引导时间状语从句,意为“当……时候”;第二个as也引导时间状语从句,意为“随着……”。考点一-14-1.约翰总是乐于帮助别人,这就注定了他会很受欢迎。Johnisalwaysreadytohelpothers,whichistomakehimverypopular.2.他们团结协作,这就使得他们在三小时内完成这项工作成为可能。Theyworktogether,whichmakesitpossibleforthemtofinishtheworkwithinthreehours.3.钢笔随着我的书写而颤动。MypentremblesasIwrite.考点一-15-Noone1.knows(know)exactlyhowtheearthbegan.Accordingtoa2.widely(wide)acceptedtheory,theuniversebeganwitha“BigBang”,3.whichexplodedloudlyandproducedwatervapourandmany4.gases(gas)makingtheearth’satmosphere.Astheearthcooleddown,waterappearedandstayedonthesurface.Itwasthe5.presence(present)ofwaterthatallowedtheearthtodissolveharmfulgasesandacidsintotheoceansandseas,whichmade6.itpossibleforlifetodevelop.First,theappearanceofsmallplantsencouragedthelaterdevelopmentofearlyshellfishandallsortsoffish.Next,greenplantsbegantogrowonland,7.followed(follow)bylandanimals.Soreptilesappearedforthefirsttime.Ⅳ.语篇填空旧材新用,探究根源Killtwobirdswithonestone.考点一-16-Later,dinosaursdeveloped.However,theysuddenlydisappeared.Afterthat,mammalscameintobeing.Finally,humans8.appeared(appear)andspreadallovertheearth.However,theyareputtingtoomuchcarbondioxideintotheatmosphere,9.making(make)theearthtoohottoliveon.So,whetherlifewillcontinueontheearthformillionsofyearstocomewilldependon10.whetherthisproblemcanbesolved.考点二-17-核心词汇核心句式1.intime及时;终于;迟早;总有一天领悟高考·究考法用intime或ontime填空(1)Peoplewillonlyseeitasarealchoiceifthebusesandtrainsare.(2014·山东,阅读表达)只有公共汽车和火车准时运行,人们才会觉得它是一个真正的选择。(2)Wearrivedinthesummer,justtoenjoythemidnightsun.(2014·四川,阅读理解B)我们是夏天到达的,正好来得及享受午夜的太阳。(3)Hepromisedthattheboycouldbebackatschool______________fortheexam.他保证这个男孩能及时回到学校参加考试。ontimeintimeintime考点二-18-核心词汇核心句式单句写作(4)如果坚持下去,总有一天你会成功的。___________________________________________________Ifyoukeepon,youwillsucceedintime.考点二-19-核心词汇核心句式联想拓展·记考点(1)attimes有时;偶尔;不时(2)ontime准时;按时(3)innotime立即;马上(4)atonetime曾经;一度(5)atnotime从不;决不(6)allthetime一直;始终(7)atatime一次;每次考点二-20-核心词汇核心句式2.existvi.存在;生存派生existencen.存在;生存existentadj.存在的;实有的领悟高考·究考法翻译句子(1)Thiswaslikelytobetheartofacivilizationthatexistedover15,000yearsago.___________________________________________________(2)Alotofbusinessisstilldoneoverthephone,andmuchofitisbasedontrustandexistingrelationships.(2019·北京,阅读理解C)___________________________________________________很多业务仍通过电话完成,其中大部分基于信任和现有关系。这很可能是15,000多年前存在的一种文明的艺术。考点二-21-核心词汇核心句式用exist的适当形式填空(3)Theredifferentopinionsonthisquestion.对于这个问题存在着不同的意见。(4)Thechangeendangerstheveryofcertainanimalsandbirds.(2015·陕西,阅读理解C)这种变化威胁到了某些动物和鸟的生存。existexistence考点二-22-核心词汇核心句式联想拓展·记考点(1)Thereexists/existed...某地存在/有……(2)existon靠……为生(3)comeintoexistence开始存在,成立(4)bring...intoexistence使发生,产生考点二-23-核心词汇核心句式3.inone’sturn轮到某人领悟高考·究考法完成句子(1)When,I’mtooexcitedtospeak.当轮到我时,我太兴奋以至于讲不出话来了。(2)Hecookedthem