2023學(xué)年完整公開(kāi)課版必修3unit4知識(shí)點(diǎn)

Unit4ReadingHowlifebeganontheearth?LanguagepointsUnit41.Nooneknowsexactlyhowtheearthbegan,asithappenedsolongago.——————————————————Nooneseeswhathe’ssaying,asitistoohard.

仿寫：沒(méi)人明白他在說(shuō)什么，因?yàn)槟翘y理解了。2.However,accordingtoawidelyacceptedtheory,theuniversebeganwitha“BigBang”thatthrewmatterinalldirections.

beginwith=startwith：“以……開(kāi)始”.1)tobeginwith=tostartwith以…為起點(diǎn);開(kāi)始(做)這兩個(gè)詞組都可以單獨(dú)使用,表示“首先;第一;起初;最初”.在句中作時(shí)間狀語(yǔ).e.g.Tobegin/startwith,Icouldn’tlikehimatall.起初,我一句也沒(méi)弄明白.3.Whatitwastobecomewasuncertainuntilbetween4.5and3.8billionyearsagowhenthedustsettledintoasolidglobe._________________

（使大家吃驚的是）isthathedidn’tcometothemeeting.Whatsurprisedeverybody

2.___________（他所做的addedtoourdifficulty.

Whathedid

仿寫:李老師明天將去北京，直到那時(shí)才能知道誰(shuí)將代替她給我們上課。________________________________________________________________________________WhowillgiveuslessonsinplaceofMissLiisn’tknownuntiltomorrowwhenshewillgotoBeijing.4.Theearthbecameso

violent

thatitwasnotclearwhetherthesolidshapewouldlastornot.問(wèn)題是地球開(kāi)始變得激烈動(dòng)蕩，不知道這個(gè)固體形狀是否會(huì)繼續(xù)下去。n.固體

(solid,liquid,gas)adj.固體的,實(shí)心的,無(wú)空隙的；結(jié)實(shí)的,

Solid:2)violent

猛烈的，激烈的

violencen.暴力3)lastv.持續(xù)好天氣只會(huì)持續(xù)幾天

Thefineweatheronlylastedforafewday

友誼長(zhǎng)存

Friendshiplastsforever.

5.Itexplodedloudlywithfireandrock,whichwereintimetoproducecarbon,nitrogen,watervapourandothergases,whichwerewomaketheearth’satmosphere.1).（使某物）炸開(kāi)，爆炸

2).（指感情）迸發(fā)搭配：

3).（指人口）突然或迅速增加

eg:Thefireworkexplodedinhishandandhewashurtseriously.

eg:Thechildrenexplodedintolaughter.eg:Theteacherexplodedwithanger.

explosionn.爆炸（聲）

explosiveadj.爆炸性的，易爆炸的

explodewith/in/into...eg:Nowitisnoteasytofindjobswiththeexplodingworldpopulation.(sth)beto(do):1.不可避免要發(fā)生或必須發(fā)生。Sheistobehonouredforthisgreatwork.

2表示按計(jì)劃、安排要發(fā)生的動(dòng)作Whenaretheytohandintheirplan？3表命令Tellhersheisnottobebacklate!

intime:soonerorlater;eventually遲早;最終我遲早會(huì)遇見(jiàn)他.

I’llseehim

intime.

intime(forsth./todosth.):notlate及時(shí)；不遲

她會(huì)及時(shí)回來(lái)準(zhǔn)備晚餐.Shewillbebackintimetopreparedinner.

你認(rèn)為我們能及時(shí)趕上火車嗎?Doyouthinkwecangetthere_________thetrain?intimeforexercise:

與time相關(guān)的短語(yǔ):

ontime按時(shí);準(zhǔn)時(shí)

innotime

立刻,馬上

attimes

有時(shí)

atatime

每次;依次

onceuponatime

從前

atonetime

從前

forthetimebeing

暫時(shí)

fromtimetotime

不時(shí)地

cooldown

變涼,冷卻,平息，冷靜曬了一天的太陽(yáng)之后,他喜歡在海水中涼快一下.Afteradayinthesun,helikedto________inthesea.他的話平息了她的怒氣.Hiswords_____________heranger.cooleddowncooldown6.Whatisevenmoreimportantisthatastheearthcooleddown,waterbegantoappearonitssurface.

隨著地球的冷卻,地球的表面就開(kāi)始出現(xiàn)了水。7.WaterhadalsoappearedonotherplanetslikeMarsbut,unliketheearth,ithaddisappearedlater.

仿寫：他們盡了最大的努力，但讓他們失望的是他們沒(méi)有贏得那場(chǎng)比賽。___________________________________Theytriedtheirbestbut,totheirdisappointment,theydidn’twinthegame.8.Itwasnotimmediatelyobviousthatwaterwastobefundamentaltothedevelopmentoflife.

水會(huì)對(duì)于生命的發(fā)展起關(guān)鍵作用,這一點(diǎn)在當(dāng)時(shí)并不太明顯.

本句體現(xiàn)的是名詞性從句在句中作主語(yǔ)的作用,雖然是以It開(kāi)頭,可是It只起到形式主語(yǔ)的作用,真正的主語(yǔ)是thatwaterwastobefundamentaltothedevelopment

oflife.用It做形式主語(yǔ)是因?yàn)閠hat引導(dǎo)的從句較長(zhǎng),如果按照正常語(yǔ)序來(lái)安排的話就顯得頭重腳輕了.如:Itisnowonderthathehaspassedtheexam.ItisquitenecessaryforustolearnEnglishwell.allow…to…=permit…todo…h(huán)armfuladj.Opp:harmlessharmn./v.beharmfultosb./sth.=doharmtosb./sth.=dosb/sthharm對(duì)…有害過(guò)多的二氧化碳對(duì)環(huán)境有害.Toomuchcarbondioxideisharmfulto/doesharmtotheenvironment.9.Whatmanyscientistsbelieveisthatthecontinuedpresenceofwaterallowedtheearthtodissolveharmfulgasesandacidsintotheoceansandseas.10.Thisproducedachainreaction,whichmadeitpossibleforlifetodevelop.Chainreaction連鎖反應(yīng)Makeitpossibleforlifetodevelop.

使生命的發(fā)展成為可能

makeit+adj./n.sb./sth.todosth.

組長(zhǎng)讓我們可以一起合作.Thegroupleader_____________________老師讓他們跟容易地明白那個(gè)問(wèn)題.Theteacher_________________________________.makeitpossibleforustoworktogether.madeiteasyforthemtounderstandthequestion1)multiplyv.乘:增加,繁殖；7乘以4等于28.4multipliedby7istwenty-eight.我們的功課自上以來(lái)增多了.Ourhomeworkhavemultipliedsincewecametohighschool.蚊子在夏天繁殖得很快.Mosquitoesmultiplyrapidlyinsummer.

11.Theymultipliedandfilledtheoceansandseaswithoxygen,whichencouraged…=4and7multiplytomake28.

=Multiply7by4tomake28.

allsortsof=allkindsof

各種各樣的12.…whichencouragedthelaterdevelopmentofearlyshellfishandallsortsoffish.13.Others,calledamphibians,wereabletoliveonlandaswellasinthewater.

另外一些叫作兩棲動(dòng)物,它們既能在陸地上生活也能在水里生存.

aswellas

表示“(除….之外)也;既……又”.如:I’mlearningFrenchaswellasEnglish.我學(xué)英語(yǔ)之外還學(xué)法語(yǔ).Hegrowsflowersaswellasvegetables.他既種菜也種花.“就遠(yuǎn)原則”：HeaswellasI______rockmusic.likes14.Theyproducedyounggenerallybylayingeggs.

It’sgenerallybelievedthat…一般認(rèn)為…

generallyspeaking

一般而言，概括來(lái)說(shuō)

1)It’sgenerallybelievedthatgirlsworkharderthanboysdo.

2)Generallyspeaking,womencrymoreeasilythanmen.

15.Theyproducedyounggenerallybylaying

eggs.它們一般是通過(guò)孵蛋而繁衍后代的.lie,lie,lay的區(qū)別如下:動(dòng)詞原形第三人稱單數(shù)過(guò)去式過(guò)去分詞現(xiàn)在分詞中文釋義lieliesliedliedlying撒謊;謊話lielieslaylainlying躺;位于laylayslaidlaidlaying放置;下蛋16.Theylaideggstooandexistedontheearthformorethan140millionyears.

existin存在與…之中

existon靠…為生

existby靠…生存

Itwasimpossibleforthemto________suchasmallincome.

Theuniverse_________space.

existonexistsinThewildman__________huntingwildanimalintheforest.existedbyinexistence

現(xiàn)存的comeintoexistence=comeintobeing

開(kāi)始存在、成立Whendidthisworldcomeintoexistence?17.Theseanimalsweredifferentfromalllifeformsinthepast,becausetheygavebirthtoyoungbabyanimalsandproducemilktofeedthem.

givebirthto

1)生（孩子）

She’sjustgivenbirthtoahealthybabygirl.

她剛剛生了個(gè)健康的女嬰。

2)產(chǎn)生

Theextraordinaryexperiencegavebirthtohislatestnovel.

這段奇特的經(jīng)歷促成了他的最新的一部小說(shuō)的誕生。（1）vi.（消息等）傳開(kāi)，流傳。如：Thenewsspreadthroughtheschoolveryquickly.Thefirespreadfromthefactorytothehousenearby.（2）vt.“使伸展，延伸，張開(kāi)”，常與out連用。Hespreadouthisarmstowelcomeus.Ispreadanewclothonthetable.我在餐桌上鋪上一條新桌布。他張開(kāi)手臂歡迎我們。18.smallcleveranimals,nowwithhandsandfeet,appearedandspreadallovertheearth.19.Thustheyhave,intheirturn,becomethemostimportantanimalsontheplanetsontheplanet.thusadv.因此；從而

Shestudiedhard,____________________.thusshegothighmarksHeforgottoturnontheradioand________________________.thusmissedtheprogram

2)Inone’sturn輪到某人Itwillbe_______________tobeondutytomorrow.inSam'sturn20.Theyareputtingtoomuchcarbondioxideintotheatmosphere,whichprevents