高中英語Book3Unit4AstronomythescienceofstarsPart2WordStudy課件

Part2WordStudyPart2WordStudyWarmupandPre-readingWarmupandPre-readingInoursolarsystemeightplanetscirclearoundthesun.在我們的太陽系中，八顆行星圍繞著太陽旋轉(zhuǎn)。(P25)1.systemn.

系統(tǒng)；體系；制度(agroupofconnectedthingsorpartsworkingtogetherforacommonpurposeorgoal)Inoursolarsystemeightplan[熟讀深思]

請指出下列句中畫線單詞的詞性和意義。⑴WhatarethedifferencesbetweentheAmericanandBritishsystemsofgovernment?(詞性:____;意義:______)體制n.[熟讀深思]請指出下列句中畫線單詞的詞性和意義。體制n.⑵Theyhaveanalarmsysteminthehouse.(詞性:____;意義:________________)⑶Weshouldthinkupasystematicapproachtosolvingtheproblem.(詞性:_____;意義:_______________)n.系統(tǒng)adj.系統(tǒng)的⑵Theyhaveanalarmsystemin［熟讀深思］用system或systematic填空。Theyaredesigningaroad_________usinga_________method.

systematicadj.

成體系的；有條理的

［歸納總結(jié)］systematicsystem［熟讀深思］用system或systematic填空。syReadingandComprehendingReadingandComprehendingTheearthbecamesoviolent

thatitwasnotclearwhethertheshapewouldlastornot.地球變得激烈動(dòng)蕩，不知道這個(gè)固體形狀是否會(huì)繼續(xù)存在下去。(P25L9)2.violentadj.猛烈的；激烈的；強(qiáng)暴的(severeorextreme；causedbystrongphysicalforce)Theearthbecamesoviolentth［熟讀深思］閱讀下列句子，歸納violent及其同根詞的詞性和意義。⑴Therewasaviolentwind.(詞性:_____;意義:______________)⑵Studentswere

involvedinviolentclasheswiththepolice.(詞性:_____；意義:_____________)猛烈的

adj.

暴力的adj.［熟讀深思］閱讀下列句子，歸納violent及其同根詞的詞性⑶Istheretoomuch

violence

onTV?(詞性:___；意義:_________________)⑷Sheshookherhead

violently.(詞性:____；意義:________________)暴力

n.

強(qiáng)烈地adv.⑶Istheretoomuchviolence［靈活運(yùn)用］Therobbersbitthem_________,andtheycouldn’tbearitanymoresotheydecidedtoanswer________with_________andbegantheir______fightback.violencen.暴力；暴行violentlyadv.強(qiáng)烈地；激烈地

［歸納總結(jié)］violentviolentlyviolenceviolence［靈活運(yùn)用］violencen.暴力；暴行［歸納總結(jié)］Theywereintimetoproduce…他們最終產(chǎn)生了……(P25L11)[熟讀深思]

閱讀下列句子,體會(huì)intime/ontime的意義。⑴Wegottothestationjustintimetocatchthetrain.(intime:_________)及時(shí)3.intime及時(shí)；終于；遲早；總有一天Theywereintimetoproduce…他⑵You’lllearnhowtodoitintime.(intime:_____________________)⑶Thesebusesareneverontime.(ontime:_____________)遲早，總有一天準(zhǔn)時(shí)⑵You’lllearnhowtodoitin［靈活運(yùn)用］用intime/ontime填空。⑴You’llgetusedtotheweatherinGuangdong____________.⑵Youmustalwaysreturnyourlibrarybook____________.intimeontimeontime準(zhǔn)時(shí)；按時(shí)［歸納總結(jié)］［靈活運(yùn)用］用intime/ontime填空。inti[聯(lián)想拓展]time構(gòu)成的短語你還知道哪些？atatime一次attimes有時(shí)atthesametime同時(shí)allthetime一直atonetime曾經(jīng)innotime立刻atnotime絕不aheadoftime提前[聯(lián)想拓展]time構(gòu)成的短語你還知道哪些？atatWaterhadalsoappearedonotherplanetslikeMarsbutunliketheearth,ithaddisappearedlater.在火星這些其他行星上都出現(xiàn)了水，但和地球不同的是，這些水后來都消失了。(P26L17)4.unlikeprep.

不同；不像(differentfrom;notlike)Waterhadalsoappearedonoth[熟讀深思]

請指出下列句中畫線單詞的詞性和意義。⑴Musicisquite

unlikeanyotherartform.(詞性:______;意義:____________)不像prep.[熟讀深思]請指出下列句中畫線單詞的詞性和意義。不像pr⑵Unlikemostsystems，thisoneisveryeasytoinstall.(詞性:_____;意義:___________)⑶It’sunlikely

thatitwillraintomorrow.(詞性:_____；意義:____________)⑷Tomdislikesgoingtothedentist.(詞性:_____；意義:___________)與……不同prep.adj.不太可能的vt.不喜歡⑵Unlikemostsystems，thiso

unlikelyadj.不太可能的；未必發(fā)生的dislikevt.＆n.不喜歡；討厭

［歸納總結(jié)］［歸納總結(jié)］［靈活運(yùn)用］用unlike/unlikely/dislike填空。⑴_______John,Tom________playingfootball.⑵Donnamightcome,butit’svery________.Unlikedislikesunlikely［靈活運(yùn)用］用unlike/unlikely/dislike[熟讀深思]

請指出下列畫線單詞的詞性和意義。⑴Smokingcanbe

harmful

toyourbody.(詞性:____；意義:__________)adj.有害的5.harmfuladj.

有害的(causingharm,damageorinjuryto)[熟讀深思]請指出下列畫線單詞的詞性和意義。adj.有害的⑵Modernfarmingmethodshavedoneconsiderableharmtothecountryside.(詞性:____；意義:__________)⑶Thebacteriaisharmlesstohumans.(詞性:____；意義:__________)n.損害，傷害adj.無害的⑵Modernfarmingmethodshavebeharmfulto對……有害harmn.

傷害；損害doharmtosb.=dosb.harm對某人有害處domoreharmthangood弊多利少cometonoharm沒受損害harmlessadj.無害的

［歸納總結(jié)］beharmfulto對……有害［歸納總結(jié)］［靈活運(yùn)用］用harmful/harm/harmless填空。Thisobjectgivesoff________gases.Theymaydo_______toourhealth.Youmustmaketheobject________beforeyouuseit.harmlessharmfulharm［靈活運(yùn)用］用harmful/harm/harmless填空Theseanimalsweredifferentfrom…，becausetheygavebirthtoyoungbabyanimals…這些動(dòng)物和……有所不同，因?yàn)樗鼈兪欠置浜蟠?P26L43)6.givebirthto產(chǎn)生；分娩(produceyoung)Theseanimalsweredifferentf［熟讀深思］請指出下列句中畫線部分的意義。⑴Shegavebirthto

afinehealthybaby.()⑵Heonlyweighedthreepoundsatbirth.()出生;分娩在出生時(shí)［熟讀深思］請指出下列句中畫線部分的意義。出生;分娩在出生(3)AnnewasFrenchbybirthbutlivedmostofherlifeinItaly.()⑷Nooneknowswhentheboywasborn.()出身出生(3)AnnewasFrenchbybirthbuatbirth在出生時(shí)bybirth出身，天生beborn出生［歸納總結(jié)］atbirth在出生時(shí)［歸納總結(jié)］［靈活運(yùn)用］用beborn/givebirthto的正確形式填空。⑴Howmanychildrendidshe___________?⑵She_________intoamusicalfamily.wasborngivebirthto［靈活運(yùn)用］用beborn/givebirthto的正7.inone’sturn輪到某人；接著Thustheyhave，intheirturn，becomethemostimportantanimalsontheplanet.于是，它們接著成為這個(gè)行星上最重要的動(dòng)物。(P26L46)7.inone’sturn輪到某人；接著[熟讀深思]

閱讀下列句子，歸納turn的相關(guān)搭配的意義。⑴Heisgoingtocleantheclassroominhisturn.(__________)⑵Eachmaninturnstoodupandspoke.(___________)輪到他依次[熟讀深思]閱讀下列句子，歸納turn的相關(guān)搭配的意義。輪⑶Thetwobrotherslookedaftertheirsickmotherbyturns.(__________)⑷Wetookturnstodrivethecar.(______)⑸Ithinkit’sourturntodrivethekidstoschoolthisweek.(___________)輪流地輪流做某事輪到我們⑶Thetwobrotherslookedaftinturn依次byturns輪流地taketurnstodosth.依次/輪流做某事It’sone’sturntodosth.輪到某人做某事［歸納總結(jié)］inturn依次［歸納總結(jié)］［靈活運(yùn)用］根據(jù)漢語提示完成句子。⑴Igaveaspeech___________(輪到我)thismorning.⑵Theshopassistantshadtohavetheirdayoff__________(輪流).⑶They_________(輪流)tolookaftertheirsickfather.⑷______________(輪到你們)toaskaquestion.It’syourturninmyturnbyturnstaketurns［靈活運(yùn)用］根據(jù)漢語提示完成句子。It’syourtur8.prevent…from阻止……（做某事）Theyareputtingtoomuchcarbondioxideintotheatmosphere,whichpreventsheatfromescapingfromtheearthintospace.他們把過多的二氧化碳釋放到大氣層中，這使得地球上的熱不能釋放到太空中去。(P26L48)8.prevent…from阻止……（做某事）[熟讀深思]

閱讀下列各句,并觀察prevent…from…在句中的用法。⑴Nothingcan

preventtheirplansfrombeingcarriedout.⑵Thebadcold

prevented/stoppedAlice(from)takingpartinthesportsmeeting.=Thebadcoldkept

Alicefromtakingpartinthesportsmeeting.[熟讀深思]閱讀下列各句,并觀察prevent…from［歸納總結(jié)］prevent…from的意思是_____________________。用于主動(dòng)語態(tài)時(shí)，preventsb.fromdoingsth.和stopsb.fromdoingsth.中的from常可________，而keepsb.fromdoingsth.中的from___________。(若省略from，那么keepsb.doingsth.表示“使某人一直干某事”)阻止/制止……做某事省略不可省略［歸納總結(jié)］prevent…from的意思是________stop…(from)doingsth.阻止……做某事keep…fromdoingsth.阻止……做某事keep…doingsth.使……一直做某事［歸納總結(jié)］stop…(from)doingsth.阻止……做某事［靈活運(yùn)用］用下列單詞的適當(dāng)形式完成下列句子。⑴Nothingwill_________________usfromcominghere.⑵Theheavysnow________________thechildrengoingtoschool.⑶I’msorrytohave_____youwaitingforsolong.⑷Wewere__________________byheavysmogfromseeinganything.preventstopkeepprevented/kept/stopstop/prevent/keepprevented/stoppedkept［靈活運(yùn)用］用下列單詞的適當(dāng)形式完成下列句子。⑴Nothi9.puzzlen.謎；難題

v.(使)迷惑；(使)為難Howlifebeganonearthisoneofthebiggestpuzzlesthatscientistsfoundhardtosolve.地球上的生命是如何起源的，這是科學(xué)家們發(fā)現(xiàn)的最難以解決的謎團(tuán)之一。(P27)9.puzzlen.謎；難題［熟讀深思］閱讀下列句子，歸納puzzle及其同根詞的詞性與意義。⑴Herdecisionwasapuzzle

tohim.(詞性:_____；意義:__________________)⑵Karenpuzzledoverthequestionallevening.(詞性:_____；意義:__________)n.謎vi.苦思［熟讀深思］閱讀下列句子，歸納puzzle及其同根詞的詞性與⑶Facedwiththepuzzlingsituation，thesalesmanagerlookedpuzzled.

(puzzling詞性:_____；意義:___________)(puzzled詞性:_____；意義：___________)adj.令人迷惑的adj.感到困惑的⑶Facedwiththepuzzlingsitupuzzleover/aboutsth.為……苦思冥想puzzlesth.out設(shè)法想出某事puzzlingadj.令人迷惑的；費(fèi)解的Puzzledadj.

感到困惑的［歸納總結(jié)］puzzleover/aboutsth.為……苦思冥想［靈活運(yùn)用］⑴Ithinkit’sreallyaproblem.Ireally________don’tknowwhichtochoose.⑵Shelistenedwitha__________expressiononherface.⑶I’mdoingaword________inthisnewspaper.⑷Hefinally_________outhowtosolvetheproblem.puzzlingpuzzledpuzzlepuzzled［靈活運(yùn)用］puzzlingpuzzledpuzzlepuzUsingLanguageUsingLanguage10.pulln.&vt.拉（力）；拖；牽引力Astherocketroseintotheair,wewerepushedbackintoourseatsbecauseweweretryingtoescapethepulloftheearth’sgravity.隨著火箭徐徐升空，我們慢慢逃離地球的引力，但這種引力太強(qiáng)了把我們重重地向后推在座位上。(P30L6)10.pulln.&vt.拉（力）；拖；牽引力［熟讀深思］請指出下列句中pull的詞性和意義。⑴Themoon’spullaffectsthetidesontheearth.(詞性:_____;意義:_______________)⑵She

pulledhissleevetogethisattention.(詞性:____；意義:______________)n.引力vt.拉［熟讀深思］請指出下列句中pull的詞性和意義。n.引力vt［靈活運(yùn)用］根據(jù)漢語提示完成句子。⑴他拉了一下我的頭發(fā)。Hegavemyhair________.⑵我?guī)椭阉麖乃欣顺鰜怼?/p>

Ihelped_________________________.pullhimoutofthewaterapull［靈活運(yùn)用］根據(jù)漢語提示完成句子。pullhimout［聯(lián)想拓展］pull構(gòu)成的短語你知道哪些？pullout(of)拔出；取出pullaway開走;離開pulldown拆毀pullin(火車)到站；進(jìn)站pulloff成功做pullup停下；剎車［聯(lián)想拓展］pull構(gòu)成的短語你知道哪些？pulloutIcheeredupimmediatelyandfloatedweightlesslyaroundinourspaceshipcabinwatchingtheearthbecomesmallerandthemoonlarger.我立刻感到很高興，由于失重，我在太空艙里飄來飄去，我望著(身后的)地球越來越小，而(前方的)月球越來越大。(P31L12)11.cheerup（使）感到高興；感到振奮(starttofeelhappierormakesomeonestarttofeelhappier)Icheeredupimmediatelyandf［熟讀深思］⑴Thenewscheeredhimup.這消息使他高興起來。⑵Cheerup!Ourtroubleswillsoonbeover.振作起來!我們的困難很快就會(huì)過去。［熟讀深思］［靈活運(yùn)用］根據(jù)漢語提示完成句子。⑴想辦法高興點(diǎn)兒，生活并不是那么糟。Try，__________________lifeisn’tthatbad!⑵他帶她去聽音樂會(huì)以使她高興。Hetookher______________to______________.cheerherupandcheerupabittotheconcert［靈活運(yùn)用］根據(jù)漢語提示完成句子。cheerherupa12.nowthat既然；由于(since;becauseofthefactthat)“Ohdear,”Icried,“walkingdoesneedabitofpracticenowthatgravityhaschanged.”“天哪，”我大聲說，“重力改變了，看來走路也的確需要練一練了?！?P31L23)［熟讀深思］Nowthatyouarebusy，letmedoitforyou.既然你忙，就讓我為你做吧。12.nowthat既然；由于(since;becau［靈活運(yùn)用］根據(jù)漢語意思完成英文句子。⑴既然你長大了，就不應(yīng)該依靠你的父母。_______________________________,youshouldnotrelyonyourparents.⑵既然已完成了工作，你就應(yīng)該好好休息一下。Yououghttohaveagoodrest____________________________________.nowthatyou’veNowthatyouhavegrownupfinishedthework

［靈活運(yùn)用］根據(jù)漢語意思完成英文句子。nowthatyo13.br