浙江省温州市永嘉中学教育集团楠江校区高二英语Unit4Astronomythescienceofthestarslanguagepoints学案1.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】【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。值得注意的是：______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【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.【句式仿写：】对于我们来说学好英语是必须的。_______________________________________________.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__________________spitinpublic.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...
