文章中間主體內(nèi)容句型原因結(jié)果分析，另一原因在分析了基本原因之后再補(bǔ)充一個(gè)次要的或者更重要時(shí)用，三用于解釋性和闡述性論說文，美洲羚羊或稱叉角羚是該大陸典型的草原動(dòng)物。
四六級(jí)作文經(jīng)典句子
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ChapterOne文章開頭句型
1-1對(duì)立法:先引出其他人的不同看法,然后提出自己的看法或者偏向于某一看法,
適用于有爭議性的主題.
例如(e.g)
[1].Whenaskedabout.....,thevast/overwhelmingmajorityofpeoplesaythat.......ButIthink/viewabitdifferently.
[2].Whenitcomesto....,somepeoplebielivethat.......Othersargue/claimthatthe
opposite/ http://emrowgh.com (Itendtotheprofer/latter...)
[3].Now,itiscommonly/generally/widelybelieved/held/acknowledgedthat....Theyclaim/believe/arguethat...ButIwonder/doubtwhether.....
1-2現(xiàn)象法引出要剖析的現(xiàn)象或者問題,然后評(píng)論.
e.g
[1].Recentlytheriseinproblemof/(phenomenonof)...hascause/aroused
public/popular/wide/worldwideconcern.
[2].Recentlytheissueoftheproblemof/thephenomenonof...hasbeenbroughtintofocus.(hasbeenbrouthtopublicattention)
[3].Inflation/Corruption/Socialinequality...isyetanotherofthenewandbittertruthwehavetolearntofacenow/constantly.
-----Tobecontinued!!
1-3觀點(diǎn)法----開門見山,直接了當(dāng)?shù)靥岢鲎约簩?duì)要討論的問題的看法.
e.g:
[1].Neverhistoryhasthechangeof..beenasevidentas...Nowhereintheworld/Chinahastheissue/ideaof..bennmorevisible/popularthan...
[2].Nowpeopleingrowing/significantnumbersarebeginnig/comingtorealize/accept/(beaware)that...
[3].Nowthereisagrowingawareness/recognationotthenecessityto......Nowpeoplebecomeincreasinglyaware/consciousoftheimportanceof......
[4].Perhapsitistimetohaveafreshlookattheattitude/ideathat.......
1-4引用法-----先引出名人名言或者有代表性的看法,來引出文章要展開論述的觀點(diǎn)!e.g:
[1]."Knowledgeispower."suchistheremarkmadebyBacon.Thisremarkhasbeensharedbymoreandmorepeople.
"Educationisnotcompletewithgradulation."SuchistheopnionofagreatAmericanphilosopher.Nowmoreandmorepeoplesharehisopnion.
[2]."........."Howoftenwehearsuchstatements/wordslikethoses/this.Inourowndaysweareusedtohearingsuchtraditionalcomplainsasthis"......".
1-5比較法------通過對(duì)過去,現(xiàn)在兩種不同的傾向,觀點(diǎn)的比較,引出文章要討論的觀點(diǎn).e.g:
[1].Foryears,...hadbeenviewedas...Butpeoplearetakingafreshlooknow.Withthegrowing...,people........
[2].Peopleusedtothinkthat...(Inthepast,....)Butpeoplenowsharethisnew.
1-6故事法----先講一個(gè)較短的故事來引發(fā)讀者的興趣,引出文章的主題.
e.g:
[1].Oncein(anewspaper),Ireadof/learnt....Thephenemenonof...hasarousedpublicconcern.
[2].Ihaveafriendwho...Shouldhe....?Suchadilemmaweareoftenconfrontwithinourdailylife.
[3].Onceuponatime,therelivedamanwho...Thisstorymaybe(unbelievable),butitstillhasarealisticsignificancenow.
1-8問題法-----先用討論或解答的設(shè)問,引出自己觀點(diǎn),適用于有爭議性的話題.
e.g:
Should/What......?Optionsof...varygreatly,some...,others...
Butinmyopinion,.......
Chapter2文章中間主體內(nèi)容句型原因結(jié)果分析
3-1-1.基本原因---分析某事物時(shí),用此句型說明其基本的或者多方面的原因.e.g:
[1].Why...?Foronething..Foranother...
[2].Theanswertothisprobleminvovlesmanyfactors.Foronething...Foranother......Stillanother...
[3].Anumberoffactors,bothphysicalandpsychologicalaffect..../bothindividualandsocialcontributeto....
3-1-2另一原因-------->在分析了基本原因之后,再補(bǔ)充一個(gè)次要的或者更重要時(shí)用!e.g:
[1].Anotherimportantfactoris....
[2]....isalsoresponsibleforthechange/problem.[3].Certainly,the...isnotthesolereasonfor.....
3-1-3后果影響---------分析某事物可能造成的后果或者帶來的影響.e.g:
[1].Itwillproduceaprofound/far-reachingeffect/impacton....[2].Ininvolvessomeseriousconsequencefor........比較對(duì)照句型
3-2-1.兩者比較--->比較兩事物,要說出其一超過另一個(gè),或肯定一事物的優(yōu)點(diǎn),也肯定其缺點(diǎn)的時(shí)候用!e.g:
[1].TheadvantagesgainedfromAaremuchgreaterthantheadvantageswegainfromB.[2].Indeed,AcarriesmuchweightwhencomparedwithB.
[3].Thereisnodoubtthatithasitsnegativeeffectsaswellaspositiveeffects.3-2-2.兩者相同/相似------>比較兩事物共同都有或者共同都沒有的特點(diǎn)時(shí)用!e.g:
[1].AandBhaveseveralthingincommon.Theyaresimilarinthat.....[2].Abearssomesrikingresemblance(s)toB.ChapterThree文章結(jié)尾形式
2-1結(jié)論性---------通過對(duì)文章前面的討論,引出或重申文章的中心思想及觀點(diǎn).e.g:
[1].Fromwhathasbeendiscussedabove,wemaysafelydrawtheconclusionthat.....[2].Insummary/Inaword,itismorevaluable.......
2-2后果性------揭示所討論的問題若不解決,將產(chǎn)生的嚴(yán)重后果.e.g:
[1].Wemustcallforanimmediatemethod,becausethecurrentphenomenonof...,ifallowedtoproceed,willsurelyleadtotheheavycostof.......
[2].Obviously,ifweignore/areblindtotheproblem,thereiseverychancethat..willbeputindanger.
2-3號(hào)召性--------呼吁讀者行動(dòng)起來,采取行動(dòng)或提請(qǐng)注意.e.g:
[1].Itistimethatweurgedanimmediateendtotheundesirabletendcyof......
[2].Itisessentialthareffectivemeasuresshouldbetakentocorrectthetendency.
2-4建議性--------對(duì)所討論的問題提出建議性的意見,包括建議和具體的解決問題的方法.e.g:
[1].Whileitcannotbesolvedimmediately,stillthereareways.Themostpopularis....Anothermethodis...Stillanotheroneis.....
[2].Awareness/Recognitionoftheproblemisthefirststeptowardthesituation.
2-5方向性的結(jié)尾方式----其與建議性的唯一差別就是對(duì)問題解決提出總的,大體的方向或者指明前景.e.g:
[1].Manysolutionsarebeingofferedhere,allofthemmakesomesense,butnoneisadequateenough.Theproblemshouldberecognizedinawideway.
[2].Thereisnoquickmethodtotheissueof..,but..mightbehelpful/benefical.[3].Thegreatchallengetodayis......Thereismuchdifficulty,but........
2--6意義性的結(jié)尾方式-------->文章結(jié)尾的時(shí)候,從更高的更新的角度指出所討論的問題的重要性以及其深遠(yuǎn)的意義!e.g:
[1].Followingthesesuggestionsmaynotguaranteethesuccess,butthepayoffmightbeworththeeffort.Itwillnotonlybenefitbutalsobenefit.....
[2].Inanycase,whetheritisposotiveornegative,onethingiscertainthatitwillundoubtedly..
四六級(jí)作文經(jīng)典句子
2.It結(jié)構(gòu)
1)Itisadvisabletoexercise（擁有）patienceindealingwithsuchcomplicatedsituations.
2)Itisadvisabletoplaceimportanttelephonenumbersnesttothephoneincaseofanemergency.
3)Itisbiologicallyreasonablefordeertoreducetheircostoflivingtoincreasetheirchancesofsurvivinginwinter.
4)Itisessentialthattheincreaseinproductionshouldbegearedto(適應(yīng))theincreaseinpublicdemand.
5)Itisnecessarythatyoungandoldpeopleshouldcommunicatemorewitheachother.
6)Itisthoughtleofsomeparentstoallowtheirchildrentowatchwhateverprogramisontelevision.
7)Itisincredible(不可思議)thatheatethebigcakejustintowbites.
8)Itwasobvioustoeveryonethatthemarriagewouldsoonerorlaterendinseparationifnotdiverce.
9)ItwasclearthatDadcoulddonomorethanhewasdoingalready.
10)Itiscertainthatfreshairandexercisesaremorevaluablethanmedicine.
11)Itiscertainthatwithdeterminationandhardworkyouwillsucceedeventually.
12)Itwasquiteapparentthatbothsidesweremakingagreatefforttowintheprize.
13)ItwasalmostimpossibleforanIndiantogainevenafaireducationanextremelydifficult,asaresult,foranIndiantoresehighinlife.
14)Itiseasytofallintobadhabitsbutverydifficulttobreakawayformthem.
15)It’snoteasytosizeup(估計(jì))thesituationrightnow.Forwearenotwellinformedonrecentdevelopments.
16)Itisnoteasytosayexactlywhateachpartofthebraindoes.
17)ItisnotwisetochangeyoumoneyintoU.S.currency.
18)Itwasnotuntilabout1600B.C.whenthechariot(馬拉戰(zhàn)車)wasinventedthatthemaximumspeedwasraisedtoroughlytwentymilesperhour.
19)Itisonlyrecentlythatsciencehasbeguntogiveussomeideaofhowthebrainreallyworks.
20)Itwasnotuntilthecenturythatmanrealizedthatthewholeofthebrainwasinvolvedintheworkingofthemind.
21)Itisconflictandnotunquestioningagreementthatkeepsfreedomalive.
22)ItwasintimesofcrisisthatIfinallyfoundoutwhathewasreallylike.
23)Ittookthehumanracemillionsofyearstoattainthatrecord.
24)Ittookameretwenty-yearflick(一瞬)oftimetodoublethelimitagain.
25)Ittakes(took)sb.sometimetodosth.
26)Ifittakesletimetobringanewideatothemarketplace,italsotakesletimeforittosweepthroughthesociety.
27)Itwilltakethecouncilafewweekstojudgethesituationbeforeittakesanyfurtheraction.
28)Itiswellknownthatmanyofourproblemsarecausedatleastinpartbyfailuretocommunicate.
29)Itisfairlywellknownthatwildanimalssurviveformyeartoyearbyeatingasmuchastheycanduringtimesofplenty.
30)Itisprobablylewellknownthatevenwiththeirstoredfat,wildanimalsspendleenergytoliveinwinterthaninsummer.
31)Itremainsunknownwhetherthereareintelligentbeingsoutsidethesolarsystem.
32)Ithasbeenpointedoutthatin6000B.C.thefastesttransportationavailabletomanover.
33)Itisnowthoughtthatthemoreworkwegiveourbrains,themorew**abletodo.
34)Itcanbearguedthatsucharesponsemaynotmeanmuch(有人認(rèn)為……)
35)Itisreportedthattheelectronicindustryisgoingonrapidlyinrecentyear.
36)Itisreportedthattherehasbeenadecreaseintheannualbirthrateoverthelasttwodecades.
37)Itisestimatedthatthetotalexpensesinthetrialmanufactureofthenewproductswillcometo30,000yuan.
38)Onceitwasthoughtthatnighttimedreamsinterferedwithourneededrest.
39)Ithasbeenobservedthatunemploymentbringsenormouspsychologicaltroubles.
40)Evenso,itseemedtohimthathewaspartofthewholeevent.
41)ItseemstomethattheAmericansareahighlymobilepeople.Mostofthemliketotravelwhenevertheygetthechance.
42)Itseemedtomethattheonlythingthatmatteredwastogetherhusbandbacktoher.
43)Butitisonlybecauseitismyworktodoso.
44)Itisanencouragingsignthatpeople’spurchasingpower(購買力)isontherise.
45)Itiscommonknowledgethatchalkabsorbsmoisture(濕氣)fromtheair.
46)Itmightbeawaytoavoidtheindignityofhavingtoaskformoneyallthetime.
47)Itusedtobeapopularbeliefthewecouldforetellaperson’sfutureonthebasisofthedateandtimeofhisbirth.
48)Itpaysinthelongrun(從長遠(yuǎn)的角度看……)tointroducenewtechnique.
49)Itistimeforoutsymbolsoftechnologytochange—tocatchupwiththequickeningchangesintechnologyitself.
50)Ithasbeenonlytwenty-fiveyearssincetelevisioncametooneofpeople’spastimes.
51)Itmaywellcomeasasurprisetolearnthatnotonlypsychologistsbutotherbehavioralscientistshavecometoacceptthepositivecontributionofworktotheindividual’shappineandsenseofpersonalachievement.
一、用于駁性和比較性論文
2.Inmyopinion,thispointofviewdoesn’tholdwater.
3.thechiefreasonwhy…isthat…
4.thereisnotruethat…
5.Itisnottruethat…
6.Itcanbeeasilydeniedthan…
7.Wehavenoreasontobelievethat…
8.Whatismoreseriousisthat…
10.Besides,weshouldnotneglectthat…
11.Buttheproblemisnotsosimple.Therefore…
12.Othersmayfindthistobetrue,butIbelieverthat…
14.thereisacertainamountoftruthinthis,butwestillhaveaproblemwithregardto…
18.Itwouldbereasonabletotaketheviewthat…,butitwouldbefoolishtoclaimthat…
21.Itisonethingtoinsistthat…,itisquiteanothertoshowthat…
22.WonderfulasAis,however,ithasitsowndisadvantagestoo.
24.A’sadvantagesoundsridiculouswhenB’sadvantagesaretakenintoconsideration.
二、用于描寫圖表和數(shù)據(jù)
1.Ithasincreasedbythreetimesascomparedwiththatof1998.
2.thereisanincreaseof20%intotalthisyear.
3.Ithasbeenincreasedbyafactorof4since1995.
4.Itwouldbeexpectedtoincrease5times.
5.thetableshowsathreetimesincreaseoverthatoflastyear.
6.Itwasdecreasedtwicethanthatoftheyear1996.
7.thetotalnumberwasloweredby10%.
8.Itrosefrom10-15percentofthetotalthisyear.
http://emrowgh.com paredwith1997,itfellfrom15to10percent.
10.thenumberis5timesasmuchasthatof1995.
11.Ithasdecreasedalmosttwoandhalftimes,comparedwith…
三、用于解釋性和闡述性論說文
1.Everybodyknowsthat…2.Itcanbeeasilyprovedthat…
3.Itistruethat…4.Noonecandenythat
5.Onethingwhichisequallyimportanttotheabovementionedis…
6.thechiefreasonisthat…7.Wemustrecognizethat…
8.thereisondoubtthat…9.Iamoftheopinionthat…
10.Thiscanbeexpressedasfollows;11.Totake…foranexample…
12.Wehavereasontobelievethat13.Nowthatweknowthat…
14.Amongthemostconvincingreasonsgiven,oneshouldbementioned…
15.thechangein…largelyresultsfromthefactthat
16.thereareseveralcausesforthissignificantgrowth
in…,first…,second…,finally…
17.Anumberoffactorscouldaccountforthedevelopmentin…
18.Perhapstheprimaryreasonis…
19.Itischieflyresponsibleof…
20.thereasonsfor…arecomplicated,Andprobablytheyarefoundinthefact…
21.Hereareseveralpossiblereasons,excerptthat…
http://emrowgh.com …
23.Itisnotsimpletogivethereasonforthiscomplicatedphenomenon…
24.Differentpeopleobservesitindifferentways.
四、用于文章的開頭
1.Astheproverbsays…
2.Itgoeswithoutsayingtan…
3.Generallyspeaking…
4.Itisquiteclearthanbecause…
5.Itisoftensaidthat…
6.Manypeopleoftenasksuchquestion:“…？”
7.Moreandmorepeoplehavecometorealize…
8.thereisnodoubtthat…
9.Somepeoplebelievethat…
10.thesedaysweareoftentoldthat,butisthisreallythecase?
12.Recentlytheissueof…h(huán)asbeenbroughttopublicattention.
http://emrowgh.com hepastseveralyearstherehasbeen…
14.Nowitiscommonlyheldthat…butIdoubtwhether…
15.Currentlythereisawidespreadconcernthat…
16.Nowpeopleingrowingnumberarecomingtorealizethat…
17.thereisageneraldiscussiontodayabouttheissueof…
18.Facedwith…,quiteafewpeoplearguethat…,butotherpeopleconceivedifferently.
五、用于文章的結(jié)尾
1.fromthispointofview…
2.inaword…
3.inconclusion…
4.onaccountofthiswecanfindthat…
5.theresultisdependenton…
6.therefore,thesefindingsrevealthefollowinginformation:
7.thus,thisisthereasonwhywemust…
8.tosumup…
9.asfaras…beconcerned,Ibelievethat…
10.Itisobviousthat…
11.thereislittledoubtthat…
12.thereisnoimmediatesolutiontotheproblemof…,but…mightbehelpful
13.Noneofthesolutionsisquitesatisfactory.Theproblemshouldbeexaminedinanewway.
14.Itishightimethatweputconsiderableemphasison…
15.Takingintoaccountallthesefactors,wemaysafelyreachtheconclustionthat…
六、用于論證和說明
1.Asitisdescribedthat…
2.Ithasbeenillustratedthat…
3.Itprovidesagoodexampleof…
4.Wemayciteanotherinstanceof…
5.Historymanprovidesuswiththeexamplesof…
6.Anumberoffurtherfactsmaybeadded…
7.thesituationisnotunique,itistypicalofdozensIhaveheard.
8.Arecentinvestigationindicatethat…
9.Accordingtothestatisticsprovided…
10.Accordingtoalateststudy,itcanbepredicted…
11.thereisnosufficientevidencetoshowthat…
12.Allavailableevidencepointstothefactthat…
13.Examplesgivenleadsmetoconcludethat…
14.Itrevealstheunquestionablefactthat…
15.theideamaybeprovedbyfacts…
16.Allthefactssuggestthat…
17.Noonecandenythefactthat…
18.Wemayfacetheundeniablefactthat…
●表示比較和對(duì)照關(guān)系的句型：
1)AistoBwhat/asCistoD(A之于B猶如C之于D).
2)Justas...,so...
3)AandBhavesthincommon.
4)AissimilartoB.
5)thesameistrueof，Thesamecanbesaidof(……也是如此).
6)theadvantagesofAaremuchGREaterthanB.
7)comparedwithB,Ahasmanyadvantages.
8)theadvantagesoutweighthedisadvantages(利大于弊).
9)WonderfulasAis,however,ithasitsowndisadvantagestoo.
10)AlthoughAenjoysconsiderableadvantageover...,itcannotcompetewithBin...
11)Contrarytowidelyacceptedviews,Ibelievethat...
12)Whatpeoplefailtoconsideristhat...
13)Itisonethingtoinsistthat...,itisquiteanothertoshowthat...
14)Nothingcanrival…(……是無與倫比的).
15)…h(huán)asdrawbacksaswellasmerits.
16)Aissuperior(inferior)toB.
17)...variesfrompersontoperson(……是因人而異的)
18)Aisjusttheopposite(toB)
19)AdiffersfromBinthat…(A不同于B在于……)
20)…isnotthesame(as)
●過渡性句型：
1)thisistruethat...
2)Thisistrue,nodoubt,but...
3)...also...
4)Itisonethingto...;itisanotherto...
●描寫圖表和數(shù)據(jù)的句型
1)...rankfirst(both)in...
2)...inproportionto...
3)Aisbyfarthelargest...
4)Asmanyas....
5)thenumberis...timesasmuchasthatof...
6)thefigurehasnearlydoubled/tripled,asagainstthatoflastyear.
7)Itaccountsfor35%of...
8)Bycomparisonwith...,itdecreased/increased/fellfrom...to...
9)...riserapidly(slowly)
10)...remainlevel...
11)...reach...
12)thereisaslight/slow/steady/rapidrise/increase
demand./income./population./prices./production./decrease/decline/reduction/fall/dropin
13)beontheincrease/decrease/rise/decline(……在不斷的增加,減少,上升,下降)
●圖表作文中的過渡、概括句型：
1)Ascanbeindicatedinthetable,...
2)Aswecouldfindoutlater，...
3)Asisrevealedinthetable，...
4)Asthesurveyresultsshow，...
5)Thistableprovidesseveralimportantpointsofcomparison
between，...
6)thetwographsdepictthesamethingin...
7)thekeyfindingstakenfromthesurveysareasfollows:
8)Accordingtothefiguresgiveninthetable,...
9)Thischartshowsthat...
10)Asisshownbythegraph,...
11)Itcanbeseenfromthestatisticsthat...
12)Itisgenerallybelieved/accepted/thought/held...
●說明原因的句型:
1)therearesome/two/manygoodreasonsfor.../todo...
2)Wehavetwogoodreasonsfor...
3)thereasonfor...isthat+從句
4)Amongthemostconvincingreasonsgivenbypeoplefor...,oneshouldbementioned...
5)Onemaythinkofthetrendasaresultof...
6)thechangein...largelyresultsfromthefactthat...
7)thereareseveralcausesforthissignificantgrowthin...irst...
8)Anumberoffactorscouldaccountforthe....
9)Itisnosimpletasktogivethereasonfor...
10)thecauseof/reasonforhigherpriceswasanincreaseindemand.
11)Because/As/Nowthat/Sincethedemandhasincreased,thepricesarehigher.
12)Anincreaseindemandcauses/resultsin/leadsto/produceshigherprices.
13)thedemandhasincreased.
14)therefore,/Asaresult,/Forthisreason,/Becauseofthis,/Consequently,thepricesarehigher.
15)Ifthereisanincreaseindemand,thenpricesrise./goup./boost./arehigher.
16)Differentpeoplelookat...indifferentways...
●表示不同看法的句型:
1)Differentpeoplehave/holddifferentopinions/viewsonthe
question/problem/matter.Somebelievethat...;Othersarguethat...:Stillothersmaintainthat...
2)theyarequitedifferentfromeachotherintheiropinions.
3)Somepeopleholdtheopinionthatitisgoodto....
4)theythinkquitedifferentlyonthisquestion.
5)Opinionsvaryfromindividualtoindividual,fromculturetoculture.●表示必須,緊急,有困難做某事的句型:
1)Itisimportant(necessary,urgent,difficult,easy,convenient,
comfortable,expensive,desirable,advisable)forsb.todosth.
2)...havetrouble/difficulty/ahardtime/adifficulttime(in)doingsth.(有困難做某事)
四六級(jí)經(jīng)典句子
1.TypicalofthegrasslanddwellersofthecontinentistheAmericanantelope,orpronghorn.美洲羚羊，或稱叉角羚，是該大陸典型的草原動(dòng)物。
2.OfthemillionswhosawHaley’scometin1986,howmanypeoplewilllivelongenoughtoseeitreturninthetwenty-firstcentury.1986年看見哈雷慧星的千百萬人當(dāng)中，有多少人能夠長壽到足以目睹它在二十一世紀(jì)的回歸呢?
3.Anthropologistshavediscoveredthatfear,happiness,sadness,andsurpriseareuniversally
reflectedinfacialexpressions.人類學(xué)家們已經(jīng)發(fā)現(xiàn)，恐懼，快樂，悲傷和驚奇都會(huì)行之于色，這在全人類是共通的。4.Becauseofitsirritatingeffectonhumans,theuseofphenolasa
generalantiseptichasbeenlargelydiscontinued.由于其對(duì)人體的影響刺激,一般使用酚作為防腐劑已基本停止.5.Anyprofitorganizationstosurviveandultimatelyconsumersmustproduceusableorneededproducts.任何盈利組織若要生存，最終都必須生產(chǎn)出消費(fèi)者可用或需要的產(chǎn)品。
6.Thegreaterthepopulationthereisinalocality,thegreatertheneedthereisforwater,
transportation,anddisposalofrefuse.一個(gè)地方的人口越多，其對(duì)水，交通和垃圾處理的需求就會(huì)越大。
7.Itismoredifficulttowritesimply,directly,andeffectivelythantoemployflowerybutvagueexpressionsthatonlyobscureone’smeaning.簡明，直接，有力的寫作難于花哨，含混而意義模糊的表達(dá)。
10.Thekneeisthejointswherethethighbonemeetsthelargeboneofthelowerleg.膝蓋是大腿骨和小腿脛的連接處。
11.Acidsarechemicalcompoundsthat,inwatersolution,haveasharptaste,acorrosiveactiononmetals,andtheabilitytoturncertainbluevegetabledyesred.酸是一種化合物，它在溶于水時(shí)具有強(qiáng)烈的氣味和對(duì)金屬的腐蝕性，并且能夠使某些藍(lán)色植物染料變紅。
12.BillieHoliday’sreputationasagreatjazz-bluessingerrestsonherabilitytogiveemotionaldepthtohersongs.BillieHoliday’s作為一個(gè)爵士布魯斯樂杰出歌手的名聲建立在能夠賦予歌曲感情深度的能力。
13.Essentially,atheoryisanabstract,symbolicrepresentationofwhatisconceivedtobereality.理論在本質(zhì)上是對(duì)認(rèn)識(shí)了的現(xiàn)實(shí)的一種抽象和符號(hào)化的表達(dá)。
14.Longbeforechildrenareabletospeakorunderstandalanguage,theycommunicatethroughfacialexpressionsandbymakingnoises.兒童在能說或能聽懂語言之前，很久就會(huì)通過面部表情和靠發(fā)出噪聲來與人交流了。
15.Thankstomodernirrigation,cropsnowgrowabundantlyinareaswhereoncenothingbutcactiandsagebrushcouldlive.受當(dāng)代灌溉(技術(shù)設(shè)施)之賜，農(nóng)作物在原來只有仙人掌和蕎屬科植物才能生存的地方旺盛的生長。
16.Thedevelopmentofmechanicaltimepiecesspurredthesearchformoreaccuratesundialswithwhichtoregulatethem.機(jī)械計(jì)時(shí)器的發(fā)展促使人們尋求更精確的日晷，以便校準(zhǔn)機(jī)械計(jì)時(shí)器。17.Anthropologyisascienceinthatanthropologistsusearigoroussetofmethodsandtechniquestodocumentobservationsthatcanbecheckedbyothers.人類學(xué)是一門科學(xué)，因?yàn)槿祟悓W(xué)家采用一整套強(qiáng)有力的方法和技術(shù)來記錄觀測結(jié)果，而這樣記錄下來的觀測結(jié)果是供他人核查的。18.Fungiareimportantintheproceofdecay,whichreturnsingredientstothesoil,enhancessoilfertility,anddecomposesanimaldebris.真菌在腐化過程中十分重要，而腐化過程將化學(xué)物質(zhì)回饋于土壤，提高其肥力，并分解動(dòng)物糞便。
19.Whenitisstruck,atuningforkproducesanalmostpuretone,retainingitspitchoveralongperiodoftime.音叉被敲擊時(shí)，產(chǎn)生幾乎純質(zhì)的音調(diào)，其音量經(jīng)久不衰。
20.AlthoughpecansaremostplentifulinthesoutheasternpartoftheUnitedStates,theyarefoundasfarnorthasOhioandIllinois.雖然美洲山河桃樹最集中于美國的東南部但是在北至俄亥俄州及伊利諾州也能看見它們。
21.Eliminatingproblemsbytransferringtheblametoothersisoftencalledscape-goating.用怪罪別人的辦法來解決問題通常被稱為尋找替罪羊。
22.Thechieffoodseateninanycountrydependlargelyonwhatgrowsbestinitsclimateandsoil.一個(gè)國家的主要食物是什么，大體取決于什么作物在其天氣和土壤條件下生長得最好。
23.Overaverylargenumberoftrials,theprobabilityofanevent’soccurringisequaltothe
probabilitythatitwillnotoccur.在大量的實(shí)驗(yàn)中，某一事件發(fā)生的幾率等于它不發(fā)生的幾率。
24.Mostsubstancecontractwhentheyfreezesothatthedensityofasubstance’ssolidishigherthanthedensityofitsliquid.大多數(shù)物質(zhì)遇冷收縮，所以他們的密度在固態(tài)時(shí)高于液態(tài)。
25.Themechanismbywhichbraincellsstorememoriesisnotclearlyunderstood.大腦細(xì)胞儲(chǔ)存記憶的機(jī)理并不為人明白。