Unit4Astronomy导学案LanguagePoints

Unit4Astronomy:thescienceofthestars导学案（两课时）Languagepoints重要单词1._______________n.天文学家→________________n.天文学2._______________adj.太阳的，日光的3.____________n.系统，体系，制度4.____________n.宗教，宗教信仰→____________adj.宗教的，宗教信仰的5.____________n.学说，理论6._____________pron.&n.&adj.(英)万亿，(美)十亿7.___________n.球体，地球仪，地球→____________adj.全球性的，全世界的8.______________adj.猛烈的，激烈的→_______________n.暴力9.________________n.大气层，气氛10.___________n.碳11.____________adj.不同，不像12.______________adj.基本的，基础的.13._________n.酸14.____________adj.有害的→______________adj.无害的15.____________vi.&vt.乘，增加16._____________n.氧17.___________vi.存在，生存18.___________n.谜，难题19.____________n.生物学→______________n.生物学家20.____________n.万有引力21.___________n.气候22._____________n.卫星，人造卫星23.___________adj.温和的，文雅的24._____________n.宇宙飞船25__________n.&vt.拉（力），拖26.__________adj.灭绝的，绝种的27._________vi.&vt.碰撞，坠落重点短语1._________________太阳系2.________________宇宙大爆炸3.________________及时；终于4._______________下蛋5._________________产生；分娩6._________________轮到某人7._________________阻止；制止8._________________挡住（光线）9.________________感到高兴，感到兴奋10.______________既然11.________________突发；爆发12.watch_______当心，密切注视==look________当心13.getthe________of熟悉，掌握14.depend________依赖15.makeupone’s_________下决心Languagepoints1.whether….ornotwhether可以引导_______________________________________;而if只能引导_______________。引导宾语从句既可以用whether,也可以用if,两者常可以互换。Heaskedmewhether/ifIcouldlendhimmybike.Couldyoutelluswhether/ifitsnowsinwinterinAustralia?①whether和if都可以和________连用,但是whether之后可以直接跟ornot,而if则不能,如：Idon’tknowwhetherornothe’scoming.但是不可以说：Idon’tcareifornotyourcarbreaksdown.②whether引导的从句一般不可以为________(选择问句的后一部分除外);而if则可以跟否定结构,如:Idon’tcareifshedoesn’tcome.但是,在某些动词或形容词之后,则可以用whether引导一个否定结构的句子,这种结构往往表示肯定的含义,如：Iwonderwhetherhedoesn’tthinktoomuchofhimself.其意思相当于:Ithinkhedoesthinktoomuchofhimself.③个别动词之后,如_______等,只跟用whether引导的宾语从句，如:Theydiscussedwhethertheyshouldclosetheshop.④whether可以引导_____________________,而if则不能,如：I’mnotinterestedinwhetherthey’llgoornot.⑤whether可以直接跟________________连用,而if则不能,如:Ididn’tknowwhethertolaughortocry.Shehasn’tdecidedwhethertogoornot.2.intime终于；及时；迟早，总有一天翻译：1)You’dbetterreturnitintime.________________________________________2)Thestormwasintimetostopbeforethesportsmeeting._______________________________________________3)You’lllearnhowtodoitintime._______________________________________【考点提示】值得注意的是：【即学即练】1.Tocompletetheproject_______,thestaffwereworkingatweekends.为了按时完成工程，全体员工周末都在上班。2.Theflowersweresolovelythattheyweresold_____________.（2007，宁夏）这些花是如此的可爱以至于他们很快就被卖光了。【高考链接】Whatastrangeman!Heloveshislife,but_______heoftenbeatsher.(2011,宝鸡市)A．atatimeB.atonetimeC.intimeD.atthesametime3.atmosphere译为：___________;__________注意：指“大气层”时，常用________________,指“气氛”时，常用_________形式。翻译句子：Anatmosphereoftensionfiledtheroom._________________________________________.Thesegasespollutetheatmosphereoftownsandcities._____________________________________________.4.Itwasnotimmediatelyobviousthatwaterwastobefundamentaltothedevelopmentoflife.【句式分析】本句体现的是____________在句中作主语的作用,虽然是以It开头,可是It只起到____________的作用,真正的主语是thatwaterwastobefundamentaltothedevelopmentoflife。It做形式主语是因为that引导的从句较长,如按照正常语序的话就显得头重脚轻了。注意：以it做形式宾语的动词还有：find,think,consider,feel,believe,take,imagine,suppose,regard等。【句式仿写：】对于我们来说学好英语是必须的。_______________________________________________.______time准时；按时innotime________________atatime一次；每次at________time曾经；一度attimes___________________oftime提前forthetimebeing暂时________one’stime别着急；慢慢来atthesametime同时；然而；不过ofthetime现在的，当时的fromtimetotime_________________他已经通过考试是不足为奇的。Itis_____________thathehaspassedtheexam.5.….thecontinuedpresenceofwaterallowedtheearthtodissolveharmfulgasesandacidsintotheoceansandseas.harmful“有害的”________n&v损害，伤害__________adj.无害的beharmfulto对……有害doharmto对……有害allow:【要点提示:】注意：与permit在很多情况下可以通用。其他动词advise，forbid也有类似用法。如：People__________________不许当众吐痰。翻译：阅览室不准吸烟。______________________________________________.【高考链接】permit,allow的不同用法(1)allow可以和_________连用，permit则不能。如:Marywouldn’tallowmein.玛丽不让我进去。(2)表示客气的请求时，主语是you应当用________，以表示下级对上级，幼辈对长辈，低层对高层人尊敬的请求。若主语用I，则应当用________的被动形式。如:MayIbeallowedtousethisknife?=Willyoupermitmetousethisknife?我可以用你的刀子吗？6.Thisproducedachainreaction,whichmadeitpossibleforlifetodevelop.1)Chainreaction译为_______________2)Makeitpossibleforlifetodevelop.使生命的发展成为可能【句式分析：】makeit+adj./n.sb./sth.todosth.【句式仿写：】组长让我们可以一起合作。Thegroupleader__________________________________________.老师让他们跟容易地明白那个问题。Theteacher______________________________________________.allowsb.sth.同意给某人某物allowsb.todosth.___________________allowdoingsth.允许做某事7.Theyproducedyounggenerallybylayingeggs.layv.译为:产卵；搁；放；布置Eg.Helaidhisbooksonthedesk.lay(laid;laid;laying)放置;产卵lie(lay;lain;lying)躺;位于lie(lied;lied;lying)说谎【语境活用】（运用上述词汇完成下方的情景）Onedaywhilewewere_______onthegrass,he_______tomethathe________theeggsthatthehenhadjust_________onthetable.Iknewhewastellinga_______.【高考链接】Theman_______underthetreesaidthathedidn’tlikethepeoplewhoalways________toothers.(2011,金华调研)A.lying,layB.lying,liedC.laying,laidD.lied,lied8.prevent…..from….阻止；抑制注意：被动语态中上述搭配中的from都不可省略。【即学即练】Theywould_______