【人教課標(biāo)】（步步高）高三英語(yǔ)一輪復(fù)習(xí) Unit 5 The power of nature精品 新人教

Unit5Thepowerofnature基礎(chǔ)落實(shí)Ⅰ.高頻單詞思憶1.Thisradiohasatwo-year(保修期).2.Redhotlavaisan

(絕對(duì)地)fantasticsight.3.Chinaisacountrywithagreat(多種)ofreligiousbeliefs.4.Themotherwasstandingatthegate,(焦急的)toseeherson.guaranteeabsolutelydiversityanxious編輯ppt5.LuXungaveupmedicineandturned(小說(shuō)家).6.Ican’t

(評(píng)估)hisabilitywithoutseeinghiswork.7.Idon’tthinkthiscoatreallysme.8.Thickfisaffectingroadsinthenorthandvisibilityispoor.9.Haveyoubthebabyyet?10.Thevolcanocouldeatanytime.novelistevaluateuitsogathedrupt編輯pptⅡ.重點(diǎn)短語(yǔ)再現(xiàn)1.

徹底焚毀2.

向……走去；前往3.

努力4.

保持著原始狀態(tài)5.

匆匆看一遍6.

由……到……不等7.

將某事告訴某人8.

保護(hù)……免受損害9.

盡可能地靠近10.

出其不意地攻占/俘獲；使措手不及burntothegroundmakeone’tect...from/againstascloseaspossibletotake...bysurprise編輯pptⅢ.典型句式運(yùn)用1.Havingcollectedandevaluatedtheinformation,Ihelpotherscientiststopredictwherelavafromthevolcanowillflownextandhowfast.收集和評(píng)估這些信息之后，我就幫助其他科學(xué)家來(lái)預(yù)測(cè)熔巖接著將往何處流去，流速是多少。Havingcollectedandevaluated...是

在句中作狀語(yǔ)。表明從句動(dòng)作發(fā)生在主句動(dòng)作之前。如果一個(gè)被動(dòng)的動(dòng)作在主句謂語(yǔ)的動(dòng)作之前完成，則可使用現(xiàn)在分詞的完成被動(dòng)式?？键c(diǎn)提煉現(xiàn)在分詞的完成時(shí)態(tài)編輯ppt2.Iwasabouttogobacktosleepwhensuddenlymybedroombecameasbrightasday.我剛要睡，突然我的臥室亮如白晝。(1)beabouttodosth.whensth.happened表示“

”。此處beabouttodosth.意為“即將要做某事”。其通常

帶具體時(shí)間狀語(yǔ)的句子中；when在此作

使用，具有副詞意義“這時(shí)/那時(shí)……”，引出一個(gè)突然出現(xiàn)的動(dòng)作?？键c(diǎn)提煉正要做某事，這時(shí)/那時(shí)突然發(fā)生了某事不用于連詞編輯ppt3.Itissaidthatthisboy,whohadagreatgiftforlanguagesandpersuasion,isthefatheroftheManchupeople.據(jù)說(shuō)這個(gè)男孩就是滿族人的祖先，他具有語(yǔ)言天賦和很強(qiáng)的說(shuō)服力。Itissaidthat...

，it是形式主語(yǔ)，真正的主語(yǔ)是由that引導(dǎo)的主語(yǔ)從句。在主語(yǔ)從句中，

不可省略。引導(dǎo)主語(yǔ)從句的whether

if代替。考點(diǎn)提煉據(jù)說(shuō)……that不可用編輯ppt導(dǎo)練互動(dòng)重點(diǎn)單詞1.appointIwas

asavolcanologistworkingfortheHawaiianVolcanoObservatory(HVO)twentyyearsago.(回歸課本P34)

觀察思考Thecompanyappointedhimchieffinancialofficer.該公司任命他為財(cái)務(wù)總監(jiān)。LisaLorewasappointedasourheadmaster.莉薩·洛爾被任命為我們的校長(zhǎng)。Wemustappointadaytomeetagain.我們要約定好下次會(huì)面的日期。appointed編輯ppt歸納總結(jié)appoint

。appointsb.tosth.任命某人某職位appointsb.as...任命某人做……appointsb.todosth.指派某人做……appointsth.(forsth.)（為某事）確定（日期、場(chǎng)所）appointmentn.任命；約定makeanappointment預(yù)約keepanappointment準(zhǔn)時(shí)赴約byappointment預(yù)約vt.任命，委派；約定（時(shí)間、地點(diǎn)等）編輯ppt即學(xué)即用(1)我們選誰(shuí)擔(dān)任主席呢？Whoshallwe

chairperson?(2)我們得指定一個(gè)人當(dāng)秘書(shū)。Wemust

someone

assecretary.(3)規(guī)定開(kāi)會(huì)的時(shí)間是10點(diǎn)30分。Thetime

themeetingwas10∶30.(4)我和老朋友在這個(gè)星期天見(jiàn)面。I

withmyoldfriendsthisSunday.appointasappointtoactappointedforhaveanappointment編輯ppt2.suitWehadwhiteprotective

thatcoveredourwholebody,helmets,bigbootsandspecialgloves.（回歸課本P34）觀察思考

MitchellworeasuitandtietotheChristmasparty.米切爾穿著套裝，打著領(lǐng)帶去參加圣誕聚會(huì)。Doesthisskirtsuitme?這條裙子我穿著好看嗎？Hetriedtosuithisperformancetotheaudience.他盡力使自己的表演迎合觀眾的口味。suits編輯ppt歸納總結(jié)suitn.一套外衣；套裝；

。suitsth.tosth.使某物適合于另一事物besuitedfor/to...適合……besuitableforsb./sth.適合于某人/某物besuitabletodosth.適合做某事vt.適合；使適宜編輯ppt易混辨異fit,suit,match(1)fit多指衣服等尺寸、大小合身，合適。(2)suit指衣服等顏色、款式、花樣等適合。(3)match意為“使相稱，使相配，使匹配”，指事物在大小、色調(diào)、性質(zhì)等方面的搭配。編輯ppt即學(xué)即用(1)你適應(yīng)這氣候嗎？(2)他和妻子十分般配。(3)這所房子確實(shí)不適合大家庭居住。Doestheclimatesuityou?Heandhiswifearewellsuitedtoeachother.Thehouseisnotreallysuitableforalargefamily.編輯ppt3.anxiousIwasso

andcouldn’tmoveatfirst.（回歸課本P38）

觀察思考Iwasterriblyanxiousaboutthechildrenwhentheydidn’tcomehomefromschool.孩子們放學(xué)后沒(méi)有回家，我非常擔(dān)心。Hewasanxiousforhisfamily,whoweretravellingabroad.他擔(dān)心在國(guó)外旅游的家人。Wewereanxiousthateveryoneshouldknowthetruth.我們渴望人人了解實(shí)情。Hewasanxiousforthemtogo.他急于要他們走。anxious編輯ppt歸納總結(jié)anxiousadj.

。beanxioustodosth.急于做……beanxiousforsb.todosth.急于讓某人做……beanxiousthat...急切希望……（that從句用虛擬語(yǔ)氣should+v.，其中should可以省略）(2)anxietyn.憂慮；擔(dān)心；渴望withanxiety焦慮地anxiouslyadv.焦慮地，不安地焦慮的，不安的；急切的，渴望的(1)beanxiousaboutforsb./sth.擔(dān)心/憂慮……編輯ppt即學(xué)即用(1)我非常擔(dān)心兒子的健康。

myson’shealth.(2)她渴望他們?nèi)慷茧x開(kāi)她的房間。She

themalltoleaveherroom.(3)我們等待著消息，越來(lái)越焦急。Wewaitedforthenewswith

.I’mveryanxiousaboutwasanxiousforagrowingsenseofanxiety編輯ppt4.panicIfeltverynervousandhadtoforcemyselfnotto

.(回歸課本P38)

觀察思考Shegotintoarealpanicwhenshethoughtshe’dlosttheticket.她十分驚慌，以為自己把入場(chǎng)券丟了。Thecrowdranoutinpanic.群眾驚慌失措地跑出去了。Thebankswerepanickedintosellingdollars.銀行正驚恐地拋售美元。panic編輯ppt歸納總結(jié)panicn.

；

（使）受驚；（使）驚慌，過(guò)去式為

，過(guò)去分詞為

，現(xiàn)在分詞為

。panicover/about/at...因……而恐慌panicodoingsth.使某人驚慌地做……getintoapanic=bethrownintoapanic使陷入驚慌狀態(tài)beseizedwithapanic驚慌失措inpanic驚慌失措地驚慌，恐慌vi.&vt.panickedpanickedpanicking編輯ppt即學(xué)即用(1)那群人聽(tīng)到槍聲后驚慌失措。

atthesoundofthegunfire.(2)槍聲驚嚇到了馬。Thegunfire

.(3)當(dāng)見(jiàn)到她的老師向她走來(lái)時(shí)，她變得驚慌失措。She

whenherteacherwalkedtowardsher.(4)當(dāng)?shù)卣鸢l(fā)生的時(shí)候，整個(gè)城市一片恐慌。Thecitywas

whentheearthquaketookplace.Thecrowdpanickedpanickedthehorsegotintoapanicinapanic編輯ppt5.guaranteeIfyouareluckyenoughtovisittheLakeofHeavenwithyourlovedone,don’tforgettodropacoinintotheclearbluewaterto

yourlovewillbeasdeepandlastingasthelakeitself.(回歸課本P39)

觀察思考Theyguaranteethiscarforayear.這輛車(chē)保修一年。Heguaranteestopayoffmydebt.=Heguaranteesthathewillpayoffmydebt.他保證還清我的債務(wù)。Thiscamerahasatwo-yearguarantee.這架照相機(jī)保修兩年。guarantee編輯ppt歸納總結(jié)guarantee

保證；擔(dān)保；n.

。guaranteesb.against/from...保證某人免受（傷害、危險(xiǎn)等）guaranteetodosth.保證去做某事guarantee...tosb.向某人擔(dān)保/保證……beguaranteedtodosth.必定做某事givesb.aguaranteethat...向某人擔(dān)?！?be)underguarantee在保修期內(nèi)注意guarantee作“抵押”講時(shí)是不可數(shù)名詞，沒(méi)有復(fù)數(shù)形式。vt.保證,保證書(shū)編輯ppt即學(xué)即用(1)如果你向他大喊大叫，他肯定會(huì)跟你對(duì)著干。Ifyouyellathim,theoppositeofwhatyouwant.(2)這項(xiàng)保險(xiǎn)保證你在發(fā)生火災(zāi)時(shí)不受損失。Thisinsurancelossincaseoffire.(3)我保證他會(huì)出庭。I

hewillappearincourt.(4)我的表仍在保修期內(nèi)。Mywatchis

.he’sguaranteedtodoguaranteesyouagainstguaranteethatstillunderguarantee編輯ppt重點(diǎn)短語(yǔ)與句型6.burntotheground...,andmanyhouseshavebeencoveredwithlavaor

.(回歸課本P34)

觀察思考Theirhouseswereburnttothegroundduringthewar.他們的房子在戰(zhàn)爭(zhēng)中被燒毀了。Thetower,whichwascompletedonlyamonthago,wasburnttothegroundlastnight.一個(gè)月前完工的那座塔昨天晚上被燒毀了。burnedtotheground編輯ppt歸納總結(jié)

burntotheground意為：

。burn(sth.)away(使某物)燒掉，燒光burndown(火勢(shì))減弱burnsth.down(將某物)焚為平地；燒得精光burnsth.off燒掉某物burn(itself)out(指火)因燃料用盡而熄滅、燒盡burnsth.out（因過(guò)熱或使用過(guò)多）出故障burnoneselfout精疲力竭；累垮burnsth.out把……燒成空架子burnsb.up激怒；使大怒burnsth.up焚毀；燒掉burnup被燒毀；被燒掉燒毀；夷為平地編輯ppt即學(xué)即用(1)那所房子被徹底焚毀了。Thehousewas

.(2)這項(xiàng)鍛煉有助于消耗脂肪，使肌肉強(qiáng)健。Thisworkouthelpsyouto

andtonemuscles.(3)那根蠟燭燒掉了一半。Halfofthecandle

.burnttothegroundburnofffathadburntaway編輯ppt7.makeone’sway...,butweslowly

totheedgeofthecrater...(回歸課本P35)

觀察思考Wemanagedtomakeourwaythroughtheexcitedcrowd.我們奮力從熱鬧的人群中擠了出來(lái)。Iamgladthathemakeshiswayinhiscareer.我很高興他在事業(yè)上有所進(jìn)步。madeourway編輯ppt歸納總結(jié)makeone’sway意為“

”，后常與介詞to/through/towards等一起連用。feelone’sway摸索著前行l(wèi)oseone’sway迷路workone’sway自始至終，從頭至尾fight/pushone’sway推/擠著前行windone’sway蜿蜒向前forceone’swayout擠出去；沖出去pushone’swayin擠進(jìn)去前往；(在事業(yè)上)有所起步編輯ppt即學(xué)即用(1)看，很多孩子正往海灘走去。Look!Manychildrenarethebeach.(2)由于在這方面沒(méi)有經(jīng)驗(yàn)，我們只能摸索著前進(jìn)。

Withoutexperienceinit,wehaveto

.(3)我們?cè)诤诎抵忻粤寺?。We

inthedark.(4)她從頭至尾處理了那一堆文件。She

throughthepileofdocuments.makingtheirwaytofeelourwaylostourwayworkedherway編輯ppt8.varyfrom...to...Theheightoftheland

700metresabovesealevel

over2,000metresandishometoagreatdiversityofrareplantsandanimals.（回歸課本P39）

觀察思考Teachingmethodsvarygreatlyfromschooltoschool.各個(gè)學(xué)校的教學(xué)方法大不相同。Opinionsonthismattervaryfrompersontoperson.對(duì)于這件事，人人意見(jiàn)不一。variesfromto編輯ppt歸納總結(jié)varyfrom...to...意為：

。(1)varyinsth.（大小、形狀等）不同，有別varywith隨……變化，改變varybetween...and...從……到……轉(zhuǎn)變(2)variousadj.各種各樣的；多姿多彩的variedadj.各種各樣的；變化的(3)varietyn.種種；多樣化(4)avarietyof種種由……到……不等；從……到……變化編輯ppt即學(xué)即用

(1)某些貨物的價(jià)格隨著季節(jié)的變化而變動(dòng)。Thepricesofsomegoods

.(2)品種多并不能確保營(yíng)養(yǎng)好。

isnotaguaranteeofgoodnutrition.(3)解決這個(gè)問(wèn)題有許多種方法。Thereare

solvetheproblem.(4)他過(guò)著豐富多彩的生活。Heleda

life.varywiththeseasonVarietyvariouswaystofullandvaried編輯ppt9.Amongtherareanimalsarecranes,blackbears,leopardsandtigers.珍稀動(dòng)物有鶴，黑熊，豹和虎。

典例體驗(yàn)

whentheycoulddowhattheylikedtotheChinesepeople.他們對(duì)中國(guó)人為所欲為的日子一去不復(fù)返了。

thecountry’sproblemsisthelackofhealthfacilities.

這個(gè)國(guó)家的問(wèn)題中最重要的就是缺少醫(yī)療設(shè)施。GonearethedaysMostimportantamong編輯ppt歸納總結(jié)此句為

句式，即把表語(yǔ)

提到了句首。在英語(yǔ)中，有時(shí)為了強(qiáng)調(diào)表語(yǔ)，而將表語(yǔ)提到句首，構(gòu)成

倒裝結(jié)構(gòu)。表示方式或方位的副詞或介詞短語(yǔ)如here,there,now,then,up,down,in,away,off,out,Intheroom,onthewall等放在句首時(shí)，要用完全倒裝句式。such置于句首，也要用完全倒裝。倒裝amongtherareanimals完全編輯ppt即學(xué)即用

(1)Southoftheriverliesasmallfactory.(2)Sucharethefacts;noonecandenythem.一個(gè)小型工廠坐落在河的南岸。這就是事實(shí)，沒(méi)有人能否定他們。編輯ppt品味構(gòu)詞1.利用派生法，品句選詞Heisvery

buthisstomachhasno

,sohe

needstheexerciseswhicharedesignedto

hisstomach.A.strength B.strongC.strengthen D.stronglyBADC編輯ppt串聯(lián)擴(kuò)展后綴詞根派生詞-en(adj.)(n.)black黑的

使變黑sad傷心的

使悲傷wide寬闊的

加寬strength力量strengthenlength長(zhǎng)度

加長(zhǎng)wood木材

木制的gold金子goldenwool羊毛

毛紡的blackensaddenwiden加強(qiáng)lengthenwooden金色的woollen編輯ppt2.利用合成法，品句填詞Shediedshortlyaftergiving

toahealthygirl,thatis,thegirl’s

istheanniversaryofhermother’sdeath.(birth)串聯(lián)擴(kuò)展birthbirthday詞①詞②合成詞birthcontrol控制birthcontrolday日子birthday生日mark記號(hào)

胎記節(jié)育birthmark編輯pptbirthmother母親birthmotherplace地方

出生地rate比率

出生率right權(quán)力birthright生母birthplacebirthrate基本權(quán)力編輯ppt考題回扣【例1】Theteachertogetherwiththestudents

discussingReadingSkillsthatnewlypublishedinAmerica.（四川高考）A.are;were B.is;wereC.are;was D.is;was

解析

“主語(yǔ)+togetherwith+名詞/代詞”結(jié)構(gòu)中，句中謂語(yǔ)動(dòng)詞的數(shù)要根據(jù)前面的主語(yǔ)而定；先行詞ReadingSkills應(yīng)是一本書(shū)的名字，其定語(yǔ)從句的謂語(yǔ)動(dòng)詞用單數(shù)形式。D編輯ppt課文原文

drivenupthemountainanddroppedascloseaspossibletothecraterthathadbeenformedduringtheeruption.TwootherscientistsandIwere編輯ppt【例2】Itis

tospendmoneyinpreventingillnessesbypromotinghealthylivingratherthanspendingittryingtomakepeople

aftertheyareill. （江蘇高考）A.good;good B.well;betterC.better;better D.better;good

解析由句意可知，兩處空白均表示兩者的比較，故用比較級(jí)。課文原文WhyisthelavathatflowsonMountKilauea

thantheactualeruption?moredangerousC編輯ppt【例3】

isthepowerofTVthatitcanmakeapersonsuddenlyfamous.（遼寧高考）A.Such B.ThisC.That D.So

解析句意為：這就是電視的作用，它能使一個(gè)人突然成名。由“

...that”判斷，可排除B、C兩項(xiàng)?？崭裉幵诰渲凶髦髡Z(yǔ)，且表示“這（樣）”，所以用such。so不能在句中作主語(yǔ)。

課文原文

Canyouimaginedoing

dangerousworkaspartofyourjob?suchA編輯ppt【例4】Mybrotherisreally

.Heoftenworksinhisofficefarintothenight. （天津高考）A.open-mindedB.hard-workingC.self-confidentD.warm-hearted

解析

open-minded思想開(kāi)明的,坦率的；hard-working勤勞的,努力工作的；self-confident自信的；warm-hearted熱心腸的。句意為：我弟弟真是能干,他經(jīng)常在辦公室里工作到深夜。

課文原文Having

allday,Iwenttobedearly.workedhardB編輯ppt【例5】Fredenteredwithoutknockingand,veryoutofbreath,sank

achair.（安徽高考）A.on B.offC.into D.to

解析句意為：弗雷德沒(méi)敲門(mén)就進(jìn)來(lái)了,上氣不接下氣地坐在了椅子上。sinkintoachair頹然坐在椅子上。

課文原文Theothertwoclimbeddown

thecratertocollectsomelavaforlaterstudy,...intoC編輯ppt自主檢測(cè)Ⅰ.品句填詞1.Themotherwasstandingatthegate,

atoseeherson.2.Ithinkit’sanamistakethewaytheytreatthatchild.3.Inafact,thereisnotmuchevidencetosupporttheseallegations(指控).4.LincolnwasswhilewatchingaplayintheFord’sTheatre.5.Shegotintoarealpwhenthefirestarted.nxiousbsolutectualhotanic編輯ppt6.They

(委派)anewheadteacherattheschoollastweek.7.Tommy

(揮手)tousashecameacrossthefield.8.Theagentswereeagertoimpress(潛在的)buyers.9.Takethisopportunity,andI

(保證)youwon’tregretit.10.Thecardrewup

(在……旁)thepub.appointedwavedpotentialguaranteealongside編輯pptⅡ.短語(yǔ)運(yùn)用1.Withallthehouses

,theyhadnoplacetolivein.2.Besureto

tosavethehero’slife.3.Areyou

thesamebusylifedayafterday?4.Hermood

daytoday.Howcanyoubearit?glancethrough,dueto,impresssb.,beanxiousabout,beboredwith,compare...with...,burntotheground,varyfrom,makeaneffort,makeone’swayburnttothegroundmakeaneffortboredwithvariesfrom編輯ppt5.Thesnowbeingsothick,howdidyou

tothetopofthehill?6.Hislipsstartedtotremble,obviously

cold.7.

theirachievements,mineisnotworthmentioning.8.Weinterviewedanumberofstudents,butnoneofthem

.9.

herfuturejob,shehadmanysleeplessnights.10.

thenumberstoseehowmanyyoucanrememberinafewseconds.makeyourwayduetoComparedwithimpressedusAnxiousaboutGlancethrough編輯pptⅢ.翻譯句子1.我正準(zhǔn)備離開(kāi)，突然電話鈴響了。2.他總是把書(shū)放得整整齊齊。3.我突然想起，我還沒(méi)給父親打電話。4.湯姆發(fā)現(xiàn)自己在一個(gè)不熟悉的地方。Iwasabouttoleavewhenthetelephonerang.Healwayskeepshisbooksingoodorder.ItoccurredtomethatIhadn’tcalledmyfatherup.Tomfoundhimselfinanunfamiliardistrict.編輯ppt5.我本打算假期去北京，但來(lái)了一位不速之客。6.盡管他畫(huà)畫(huà)不好，音樂(lè)上卻很有天分。IintendedtohavegonetoBeijingduringmyholiday,butanunexpectedguestcame.Hehasagiftformusic,thoughhisdrawingisnotverygood.編輯pptⅣ.單項(xiàng)填空1.—It’sgettingdark,butMr.Johnsonisstillathisoffice.—Nosurprise.Whoelsecan

hedoes?A.dolessworkthanB.workashardlyasC.workashardasD.beworkinghardlylike

解析考查狀語(yǔ)從句。根據(jù)句意，可知此處用“Whoelsecanworkashardashedoes?”表示Mr.Johnson工作最賣(mài)力。C編輯ppt2.Sometimeswefailandsometimeswesucceed.Itishowyoureactthatmakesa

inlife.A.development B.pointC.progress D.difference

解析development發(fā)展；開(kāi)發(fā)；point點(diǎn)，要點(diǎn)；progress進(jìn)步，進(jìn)展；difference不同，差別。makeadifference起作用，有關(guān)系，影響。句意為：我們每個(gè)人都時(shí)而會(huì)失敗，時(shí)而會(huì)成功。怎樣對(duì)待這些才是生活中真正重要的事情。故選D項(xiàng)。D編輯ppt3.TheChinesearelookingforwardtothefirst

tolandonthemoonafterlaunchingthefirstlunarexplorationsatellite,Chang’e-1,successfully.A.measure B.attemptC.purpose D.desire

解析attempttodosth.嘗試/試圖做某事，符合題意。B編輯ppt4.When

differentcultures,weoftenpayattentiononlytothedifferenceswithoutnoticingthemanysimilarities.A.comparedB.beingcomparedC.comparingD.havingcompared

解析此處是連詞when+分詞短語(yǔ)作時(shí)間狀語(yǔ)，相當(dāng)于一個(gè)狀語(yǔ)從句，但分詞的主語(yǔ)和主句的主語(yǔ)必須為同一個(gè)。此處從句的主語(yǔ)是we,compare這個(gè)動(dòng)作是we主動(dòng)進(jìn)行的，應(yīng)用現(xiàn)在分詞表示。C編輯ppt5.Ifyouwantto

intheworld,youmustlearntoworkhardwhileyouarestillyoung.A.makemuchofyourselfB.makethewayoutC.makeyououtD.makeyourway

解析根據(jù)語(yǔ)境應(yīng)是“如果你想成功”，故選D項(xiàng)。makeone’sway除了可表示“到（某地），（向某地）走去”之外，還可表示“成功；有出息”。makemuchofsb.重視；makesth.out看清；辨認(rèn)清楚；makesb.out看透；弄懂某人。D編輯ppt6.Americaisregardedasamixtureofmanyracesandculturesbecauseitscitizenscomefrom

countries.A.developing B.diverseC.diligentD.domesticB編輯ppt7.Beforethefinalexamination,manystudentshaveshown

oftension.Somehavetroubleinsleepingwhileothershavelosttheirappetite.A.signs B.marksC.anxieties D.remarks

解析考查詞義辨析。句意為：在期末考試之前，許多學(xué)生已經(jīng)表現(xiàn)出緊張