高一必修三unit4課件

英語·必修3()高一必修三unit4

Reading一高一必修三unit41．FromParagraph1wecanknowthatstarsarecreatedfrom________．A．a(chǎn)ir

B．a(chǎn)toms

C．rocks

D．iceB

一、根據(jù)課文“Howlifebeganontheearth”，選擇正確答案。高一必修三unit42．Whatdoestheword“they”refertointhesentences“Itexplodedloudlywithfireandrock.Theywereintimetoproducecarbon,nitrogen，watervapourand...”inParagraph2?A．Planets.B．Stars.C．Gases.D．Fireandrock.D高一必修三unit43．Whichistherightorderofthedevelopmentoflife?A．Smallcleveranimals—shellfish—dinosaurs—mammals.B．Shellfish—dinosaurs—smallcleveranimals—mammals.C．Shellfish—dinosaurs—mammals—smallcleveranimals.D．Dinosaurs—shellfish—mammals—smallcleveranimals.C高一必修三unit44．Whyweremammalsdifferentfromotherlifeforms?A．Theygavebirthtoyoungbabyanimalsandproducedmilktofeedthem.B．Theyproducedyounggenerallybylayingeggs.C．Theywereabletoliveonlandaswellasinthewater.D．Theyliveongrass.A高一必修三unit45．Whatproblemiscausedbyhumanbeings?

A．Theyexisteverywhereontheearth.B．Theycauseglobalwarming.C．Theyfindnewmethodsofgrowingcrops.D．Theyenjoyhuntingandfishing.B高一必修三unit4四、短文填空。Nooneknowsexactly1.________theearthbegan.Accordingtoawidelyacceptedtheory,theearthbeganwitha“BigBang”,2.________explodedloudlyandproducedwatervapourandmanygases,3.________(make)theearth'satmosphere.Astheearthcooleddown,waterappearedandstayed4.________thesurface.Itwasthepresenceofwater5.________allowedtheearthtodissolveharmfulgasesandacidsintotheoceansandseas,whichmade6.________possibleforlifetodevelop.First,theappearanceofsmallplantsencouragedthedevelopmentofearlyshellfishandallsortsoffish.Next,greenplantsbegantogrowonland.7.________werefollowedbylandanimals.Soreptilesappearedforthefirsttime.Later,dinosaursdeveloped.8.________，theysuddenlydisappeared.Afterthat,mammalscameintobeing.Finally,humansappearedandspreadallovertheearth.However,theyareputtingtoomuchcarbondioxideintotheatmosphere,makingtheearthtoohot9.________(live)on.Sowhetherlifewillcontinueontheearthwilldependon10.________thisproblemcanbesolved.howwhichmakingonthatitTheyHowevertolivewhether高一必修三unit4單詞默寫根據(jù)所給英文解釋寫出下列單詞。1．________：verystrongandsudden.2．________：tomakesb.feelconfusedbecausetheydonotunderstandsth..3．________：tobepresentinaplaceorsituation.4．________：causingharm.5．________：anideaoropinion.violentpuzzleexistharmfultheory高一必修三unit41．However，accordingtoawidelyacceptedtheory，theuniversebeganwitha“BigBang”thatthrewmatterinalldirections.(p.25)然而，一種普遍為人們所接受的理論是：宇宙起源于一次大爆炸，這次大爆炸將物質(zhì)投射到四面八方。languagepoints高一必修三unit4詞語鏈接beginwith＝startwith以……開始；由……作為開頭tobeginwith

首先，第一點(diǎn)高一必修三unit4即學(xué)即練選用上述詞語完成下列句子。

(1)Theproceedingswill________________aspeechtowelcometheguests.(2)Theparty____________asong.(3)________________，wemustconsidertheproblemallsidedly.beginwithbeganwithTobeginwith高一必修三unit42．Theywereintimetoproducecarbondioxide，nitrogen，watervapourandothergases.(p.25)它們最終產(chǎn)生了二氧化碳、氮、水蒸氣和其他氣體。高一必修三unit4詞語鏈接intime

及時(shí)；終于；遲早atonetime

曾經(jīng)，一度attimes

有時(shí)，間或atatime

一次，依次innotime

幾乎，馬上地，立刻ontime

準(zhǔn)時(shí)；曾經(jīng)aheadoftime

提前forthetimebeing

暫時(shí)fromtimetotime

不時(shí)地atthesametime同時(shí)，但是高一必修三unit4即學(xué)即練用上述短語完成下列句子。(1)Theysentthemailtomejust____________，beforeIleft.(2)Williamarrivedatthetheatrejust______________fortheplaywastobeon.(3)Hurryup!Theconcertwillbegin_____________________________________________intimeinnotimeintime高一必修三unit4(4)________________________willIgiveup.(5)Theboylaughedandcried_____________________________________.(6)________________________hewasaddictedtoplayingwebgames,butnowhedevoteshimselftowriting,whichdelightshisparents.AtnotimeatthesametimeAtonetime高一必修三unit4(7)Don'ttrytodoeverythingatonce,takeitabit____________________．(8)You'llhaveyourownofficesoon,but__________________________you'llhavetoshareonewithme.(9)We'redeterminedthattheworkshallbefinished________________(提前)．a(chǎn)tatimeforthetimebeingaheadoftime高一必修三unit43．WaterhadalsoappearedonotherplanetslikeMarsbutunliketheearth，ithaddisappearedlater.(p.26)

水也出現(xiàn)在像火星那樣的其他行星上，但和地球不同，其他行星上的水后來都消失了。高一必修三unit4詞語辨析：unlike，dislike①unlike(不像)是介詞

like(像)的反義詞。②dislike(不喜歡)是動(dòng)詞like(喜歡)的反義詞。Aperson，unlikeamachine，isnotreplaceable.人和機(jī)器不同，是不可替代的。Hedislikesdogs.他不喜歡狗。高一必修三unit4即學(xué)即練根據(jù)句子的意思在括號(hào)里填入適當(dāng)?shù)脑~。(1)Agoodhotelmanagershouldknowhisregularguests'likesand________．(2)Herlatestnovelisquite________herearlierwork.(3)Ifyougoonlikethatyou'llgetyourself________(like)．(4)Iwasveryinterestedinthelecture，________manyofthestudents.dislikesunlikedislikedunlike高一必修三unit44．Whatmanyscientistsbelieveisthatthecontinuedpresenceofwaterallowedtheearthtodissolveharmfulgasesandacidsintotheoceansandseas.(p.26)許多科學(xué)家認(rèn)為水的長期存在使地球得以把有害的氣體和酸溶解在海洋里。高一必修三unit4詞語鏈接harmfuladj.有害的，傷害的harmv.&n.傷害harmfully

adv.傷害地harmless

adj.無害的harmlessly

adv.無害地beharmfulto

對(duì)……有害doharmto對(duì)……有害dosb.harm對(duì)某人有害cometoharm受到損害cometonoharm未受到傷害高一必修三unit4即學(xué)即練選用上述詞語完成下列句子。(1)It's________toyoureyestoreadinthebus.(2)Drunkenness(醉酒)______________ourhealth.(3)Nuclearpower(核能)will______________ourhealthandsafetyifimproperlyused.(4)Theyhaddonetheirbestto_________________________(防止小孩們受到任何傷害)．harmfulisharmfultodoharmtopreventchildrenfromanyharm高一必修三unit45．Theyproducedyounggenerallybylayingeggs.(p.26)它們通常是通過孵蛋來繁殖后代的。layvt.(laid,laid,laying)把放下；擺設(shè)；鋪(地毯)；產(chǎn)(蛋)高一必修三unit4詞語鏈接layeggs

下蛋l(fā)aysth.aside

把某物放在一邊；積蓄(錢)laysth.down

把某物放下laytheblameonsb.責(zé)備某人laythetable擺桌子layemphasis/stressonsth.把重點(diǎn)放在某事上高一必修三unit4即學(xué)即練根據(jù)句子的意思在括號(hào)里填入適當(dāng)?shù)脑~語。(1)Thebird________itseggsinotherbirds'nests.(2)heisapoliticalleaderthat________________________________(非常強(qiáng)調(diào))individualresponsibility.(3)He________somemoney________forrainydays.layslaysgreatstressonlaysaside高一必修三unit46．Theylaideggstooandexistedontheearthformorethan140millionyears.(p.26)它們也生蛋，在地球上生存了1.4億年。高一必修三unit4詞語鏈接existvi.存在；生存existencen．存在exist＋介詞.存在于地方existonsth.靠某物生存DoeslifeexistonMars?火星上有生命嗎？IcanhardlyexistonthewageI'mgetting.我靠我掙的工資簡直難以糊口。高一必修三unit4即學(xué)即練

用exist的短語或其適當(dāng)形式填空。(1)Thisplant________only________Australia.(2)Canyou________________suchalowsalary?(3)Idoubtthe________(exist)ofalien.existsinexistontoexistence高一必修三unit47．Thustheyhave，intheirturn，becomethemostimportantanimalsontheplanet.(p.26)于是，他們接著成為這個(gè)行星上最重要的動(dòng)物。高一必修三unit4inone'sturn

輪到某人；接著inturn

輪流；一個(gè)接著一個(gè)byturns

輪流；一陣……一陣……taketurns(todosth.)

輪流(做某事)It'sone'sturntodosth.輪到某人做某事了It'syourturntocleantheclassroom.輪到你打掃教室了。詞語鏈接高一必修三unit4即學(xué)即練用上述短語完成下列句子。(1)Shewenthotandcold________________．(2)Inourclass，eachstudent'srecitationcomes________________(輪流)．(3)They，_______________，madeaproposal.(4)Eachofyoumust______________________________(依次發(fā)言)．byturnsbyturns/inturnintheirturntaketurnstomakeaspeech高一必修三unit48．Howlifebeganonearthisoneofthebiggestpuzzlesthatscientistsfoundhardtosolve.(p.27)生命到底是如何開始的是科學(xué)家們覺得最難解決的難題之一。高一必修三unit4詞語鏈接puzzlen．難題v．迷惑puzzlementn．