b3U4高中英语教案共78张

B3u4Astronomy:Thescienceofthestars

为什么地球不同于其他星球？Whywastheearthdifferentfromtheotherplanets?2.人类什么时候登月的？Whendidhumanbeingslandonthemoon?3.未来人类会发生什么呢？Whatwillhappentohumanbeingsinthefuture?基础知识自测重点词汇讲练写作句型仿写1.____________n.

系统;体系;制度

______________adj.

系统的;有系统的

______________adv.

系统地;有系统地systematicallysystemsystematic(al)一、单词拓展(A)单词派生2._________n.

谜;难题v.(使)迷惑

__________adj.

困惑的

___________adj.

令人困惑的3._________vi.

存在；生存

__________adj.

存在的；生存的

___________n.

存在；生存existencepuzzlepuzzledpuzzlingexistexistent4._________n.

暴力;猛烈

_________adj.

暴力的;猛烈的

_________adv.

粗暴地;猛烈地5.____________________n.

基础

_____________adj.

基本的;基础的

______________adv.

根本地;从根本上fundamentallyviolenceviolentviolentlyfoundation/fundamentfundamental6.___________n.&vt.伤害；损害

___________

adj.有害的

___________

adj.无害的harmharmfulharmless6.____________n．宗教；宗教信仰_______________adj.宗教的7.______________

n．学说；理论______________

adj.理论的；理论性的8.______________

vi.存在；生存______________

n．存在；生存9._____________

n．生物学______________

n．生物学家10.______________n．球体；地球仪；地球______________

adj.全球性的；全世界的globereligiontheoryexistbiologyreligioustheoreticalexistencebiologistglobal7.AsfarasIamconcerned,strongwill,diligence,anddevotionaswellasperseverancearefour__________(fundament)factorscontributingtosuccess.

fundamental

作定语用形容词“阻止/禁止某人做某事”的多种表达(1)阻止某人做某事

①preventsb.fromdoingsth.②stopsb.fromdoingsth.③keepsb.fromdoingsth.

(2)禁止某人做某事④prohibitsb.fromdoingsth.⑤bansb.fromdoingsth.⑥forbidsb.fromdoingsth.三、语篇填空Nooneknows1_________(exact)howtheearthbegan.However，accordingtoawidely2________(accept)theory，itbegan3_____a“BigBang”.Thentheearthexplodedloudlyandproducedwatervaporandmanygases，4_________(make)theearth’satmosphere.Andthenastheearthcooleddown，waterappearedandstayedonthesurface.makingwithaccepted

exactly

Itwasthepresenceofwaterthatallowedtheearthtodissolve(溶解)5________(harm)gasesandacidsintotheoceansandseas，6______madeitpossibleforlifetodevelop.Andtheappearanceofsmallplantsencouragedthedevelopmentofearlyshellfishandallsortsoffish.Next，greenplantsbegantogrowonland.Theywerefollowedbylandanimals.Later，reptilesappearedforthefirsttime,afterwhichdinosaursdeveloped.whichharmfulHowever，theysuddenly7___________(appear).Therefore，mammalsroseon8______earth.Finally，humansappearedandspreadallovertheearth.However，theyareputtingtoomuchcarbondioxideintotheatmosphere，makingtheearthtoohot9_________(live)on.Sowhetherlifewillcontinueontheearthwilldependonwhetherthisproblemcan10________(solve).besolvedtolive

the

disappeared四、语段改错Accordingtoawideacceptedtheory,theuniversebeganwitha“BigBang”thatthrewmatterinalldirection.Forseveralbillionsyearsafterthe“BigBang”,earthwasstilljustacloudofdust.widelydirectionsbilliontheWhatitwastobecomewascertainuntilbetween4.5and3.8billionyearsbeforewhenthedustsettledintoasolidglobe.Theearthbecamesoviolentlythatitwasnotclearwhethertheshapewouldbelastornot.uncertainagoviolentItexplodedloudlywithfireandrock.Theywereontimetoproducecarbon,nitrogen,watervaporandothergases,thatweretomaketheearth’satmosphere.

whichintime重点词汇讲练1．theoryn.学说；理论例句However，accordingtoawidelyacceptedtheory，theuniversebeganwitha“BigBang”thatthrewmatterinalldirections．但是,一种普遍为人们所接受的理论是：宇宙起源于一次大爆炸,这次大爆炸将物质投射到四面八方。搭配

在理论上反义在实践上运用

根据汉语意思完成英文句子。总之，理论必须同实践相结合。Inbrief,theorymustbecombinedwithpractice.intheoryinpractice2．violentadj．猛烈的;激烈的;强暴的例句Theearthbecamesoviolentthatitwasnotclearwhethertheshapewouldlastornot．地球变得激烈动荡，不知道这个固体形状是否会继续。暴力犯罪violentcrime运用

根据提示完成英文句子。⑴Childrenshouldnotbeallowed_____________________(看暴力电影)。towatchviolentmovies⑵Herhusbandis______________(一个粗暴的人)．⑶Hisheartbeats____________(violence)．violentlyaviolentman3.unlikeprep.

不同;不像（notlike;nottypicalof）例句

WaterhadalsoappearedonotherplanetslikeMarsbut,unliketheearth,ithaddisappearedlater.水在其他星球上也出现过，例如在火星上就曾出现过，但和地球不同的是，这些水后来都消失了。转化

unlikeadj.

不同的;不相似的反义

likeprep.

像；同……一样

likeadj.

相似的；同样的运用根据汉语意思完成英文句子。她不像她妈妈；她很高，而她妈妈很矮。Sheisunlikehermother;sheistallwhilehermotherisveryshort.beharmfulto对……有害doharmtosb.=dosb.harm对某人有害处搭配4.harmfuladj.

有害的,伤害的运用填入一个适当的词或用所给词的正确形式填空。

Asweallknow,smokingis_______(harm)toourhealth.That’stosay，itdoesharm__ourhealth.Therefore,weshouldn’tsmokebuttodosomething_________(harm)toourhealth.harmlessharmfulto5．existvi.存在；生存；生活；继续存在例句Thiskindofrareanimalsexisted20，000yearsago．这种珍稀动物两万年前就存在了。existin存在于……中existon=liveon靠……生活existas作为……而存在搭配运用

用适当的词填空或用所给词的适当形式填空。⑴Thelittleboycannotexist____themoneyheisearning．on⑵Mattercanexist_____asolid，liquidorgas．⑶Wecan’texistwithoutwater．Thatmeansour_________(exist)dependsonwater．existenceas原句

Howlifebeganonearthisoneofthebiggest

puzzles

thatscientistsfoundhardtosolve.生命是如何起源的这个问题是科学家很难解答的最大困惑之一。(B3P27)6.puzzlen.

谜;难题v.(使)迷惑;(使)为难Translate:他是如何通过考试的对我们来说还是一个谜。Howhepassedtheexamisstillapuzzle

tous.搭配bepuzzledby被……迷惑beapuzzletosb.对某人来说是个谜/困惑

be／feelpuzzledabout对……感到困惑运用填入一个恰当的词或完成句子。⑴Yourexplanationwasreallyapuzzle__me.⑵Hisrecentbehavior_________(使我困惑).

to

puzzlesme

提示在主动语态的句子中,stop和prevent后的from可省略,但keep后的from不能省略;在被动语态中,此三个短语中的from均不可省略。比较

protect...from...保护……不受……例句

Thefarmerbuiltawallto

prevent

hischickensfromrunningout.那个农民建了围墙来防止鸡跑出去。运用根据汉语提示完成句子。⑴上涨的河水使我们过不了河。__________________________________.⑵人们采取行动来防止环境的恶化。__________________________________________.PeopletookmeasurestopreventtheenvironmentfromgettingworseTherisingwaterpreventedusfromcrossingtheriver原句

Walkingdoesneedabitofpracticenowthatgravityhaschanged.重力改变了,看来走路也的确需要练一练了。(B3P31)8.nowthat由于;既然Translate:既然你是学生,你必须遵守学校的规则。Nowthat

youareastudent,youmustobeyschoolrules.运用

(1)既然大家来了,我们就开会吧。______________________________,(2)既然已完成了工作,你就应该好好休息。_______________________________________.now

that/asyouhavefinishedtheworkYououghttohaveagoodrestsince/Nowthat/Sinceeverybodyisherelet’sbeginourmeeting

9．intime及时；终于；迟早例句Themanintimecaughtthebagfallingfromupstairs．那个人及时接住了从楼上掉下来的包。立刻,马上绝不每次,一次曾经；一度同时有时,偶尔联想innotime(atonce;rightnow)atnotime(bynomeans;innocase;innoway;undernocircumstancesatatimeatonetime(once)atthesametimefromtimetotime运用

填入一个恰当的词。⑴Whenourguestsarriveatourhome,weshouldservetea__time．⑵Withmanysubjectstoconcentrateon，Ifailedtofinishhomework____time．onin10．breakout(火灾／战争／地震等)爆发；发生例句Theteacherstayedathomewhenthebigfirebrokeoutinthetallbuilding.当那场高楼大火发生时，那个老师正待在家里。breakinto破门而入breakup(组织、公司等)解散breakawayfrom脱离联想运用

根据汉语意思完成英文句子。⑴昨天晚上，两个小偷破门而入小李家，并偷走了一块手表。Lastnight，twothieves___________XiaoLi’shomeandstoleawatch．brokeinto⑵当地震发生时,大家都在睡觉。Whentheearthquake,_________everyonewassleepinginbed．⑶ABA乐队去年解散了，这是我们没有料想到的。BandABA___________lastyear，whichwasbeyondourexpectation．brokeupbrokeout11.givebirthto产生；分娩；引起；造成例句

Theygavebirthtoyoungbabyanimalsandproducedmilktofeedthem.它们能产出幼仔并给幼仔哺乳。运用根据汉语意思完成英文句子。⑴她昨晚生了一个健康男婴。___________________________⑵这段奇特的经历促成了他最新一部小说的诞生。Shegavebirthtoahealthybabyboylastnight.Theextraordinaryexperiencegavebirthtohislatestnovel12.inone’sturn轮到某人;接着例句

Thustheyhave,intheirturn,becomethemostimportantanimalsontheplanet.于是，他们接着成为了这个行星上最重要的动物。轮到某人做某事轮流，依次轮流；交替地轮流做某事It’ssb.’sturntodosth.联想inturnbyturnstaketurnstodosth.易混淆的短语：inreturn

作为报答inreturnfor作为…的报答

翻译将下列句子译成英文。⑴轮到我的时候,我给他们讲了一个笑话。⑵轮到你看医生啦。It’syourturntoseethedoctor.Inmyturn,Itoldthemajoke.13.watchout注意,当心(单独用于祈使句)watchoutfor密切注意，提防运用根据汉语意思完成英文句子。⑴当心，别把桌子上的纸弄脏了。__________!Don’tdirtythepaperonthedesk.⑵我们必须提防公共汽车上的小偷。WatchoutWemustwatchoutforthethievesonthebus.写作句型仿写(1)很明显你的学生明天没有说实话。_______________________________________________Itwasobviousthatyourstudentdidn’ttellyouthetruthyesterday.（2）目前的情况使我们很难按时完成任务。Thepresentsituationmakesitdifficultforustoaccomplishthetaskontime.（3）我们明天是否进行野炊取决于明天是否天晴。Whetherwewillhaveapicnicdependsonwhetheritisfinetomorrow.1.Itisobviousthat...显然……2.makeit+adj.+forsb.todo使某人做某事……3.whether...dependonwhether...某事是否发生取决于是否……4.英语中常见的倍数表达法有：(1)A＋be＋倍数＋as＋adj./adv.原级＋asB(2)A＋be＋倍数＋adj./adv.比较级＋thanB(3)A＋be＋倍数＋the＋名词(size