精彩TOEFL句子结构100句

1.　Typical　of　the　grassland　dwellers　of　the　continent　is　the　American　antelope,　or　pronghorn.　
　　2.　Of　the　millions　who　saw　Haley’s　comet　in　1986,　how　many　people　will　live　long　enough　to　see　it　return　in　the　twenty-first　century.　
　　3.　Anthropologists　have　discovered　that　fear,　happiness,　sadness,　and　surprise　are　universally　reflected　in　facial　expressions.　
　　4.　Because　of　its　irritating　effect　on　humans,　the　use　of　phenol　as　a　general　antiseptic　has　been　largely　discontinued.　
　　5.　In　order　to　remain　in　existence,　a　profit-making　organization　must,　in　the　long　run,　produce　something　consumers　consider　useful　or　desirable.　
　　6.　The　greater　the　population　there　is　in　a　locality,　the　greater　the　need　there　is　for　water,　transportation,　and　disposal　of　refuse.　
　　7.　It　is　more　difficult　to　write　simply,　directly,　and　effectively　than　to　employ　flowery　but　vague　expressions　that　only　obscure　one’s　meaning.　
　　8.　With　modern　offices　becoming　more　mechanized,　designers　are　attempting　to　personalize　them　with　warmer,　less　severe　interiors.　
　　9.　The　difference　between　libel　and　slander　is　that　libel　is　printed　while　slander　is　spoken.　
　　10.　The　knee　is　the　joint　where　the　thigh　bone　meets　the　large　bone　of　the　lower　leg.　
　　11.　Acids　are　chemical　compounds　that,　in　water　solution,　have　a　sharp　taste,　a　corrosive　action　on　metals,　and　the　ability　to　turn　certain　blue　vegetable　dyes　red.　 　

12.　Billie　Holiday’s　reputation　as　a　great　jazz-blues　singer　rests　on　her　ability　to　give　emotional　depth　to　her　songs.　
　　13.　Essentially,　a　theory　is　an　abstract,　symbolic　representation　of　what　is　conceived　to　be　reality.　
　　14.　Long　before　children　are　able　to　speak　or　understand　a　language,　they　communicate　through　facial　expressions　and　by　making　noises.　
　　15.　Thanks　to　modern　irrigation,　crops　now　grow　abundantly　in　areas　where　once　nothing　but　cacti　and　sagebrush　could　live.　
　　16.　The　development　of　mechanical　timepieces　spurred　the　search　for　more　accurate　sundials　with　which　to　regulate　them.　
　　17.　Anthropology　is　a　science　in　that　anthropologists　use　a　rigorous　set　of　methods　and　techniques　to　document　observations　that　can　be　checked　by　others.　
　　18.　Fungi　are　important　in　the　process　of　decay,　which　returns　ingredients　to　the　soil,　enhances　soil　fertility,　and　decomposes　animal　debris.　
　　19.　When　it　is　struck,　a　tuning　fork　produces　an　almost　pure　tone,　retaining　its　pitch　over　a　long　period　of　time.　
　　20.　Although　pecans　are　most　plentiful　in　the　southeastern　part　of　the　United　States,　they　are　found　as　far　north　as　Ohio　and　Illinois.　
　　21.　Eliminating　problems　by　transferring　the　blame　to　others　is　often　called　scapegoating.　
　　22.　The　chief　foods　eaten　in　any　country　depend　largely　on　what　grows　best　in　its　climate　and　soil.　
　　23.　Over　a　very　large　number　of　trials,　the　probability　of　an　event’s　occurring　is　equal　to　the　probability　that　it　will　not　occur.　
　　24.　Most　substance　contract　when　they　freeze　so　that　the　density　of　a　substance’s　solid　is　higher　than　the　density　of　its　liquid.　
　　25.　The　mechanism　by　which　brain　cells　store　memories　is　not　clearly　understood.　 　


　　26.　By　the　middle　of　the　twentieth　century,　painters　and　sculptors　in　the　United　States　had　begun　to　exert　a　great　worldwide　influence　over　art.　
　　27.　In　the　eastern　part　of　New　Jersey　lies　the　city　of　Elizabeth,　a　major　shipping　and　manufacturing　center.　
　　28.　Elizabeth　Blackwell,　the　first　woman　medical　doctor　in　the　United　States,　founded　the　New　York　Infirmary,　an　institution　that　has　always　had　a　completely　female　medical　staff.　
　　29.　Alexander　Graham　Bell　once　told　his　family　that　he　would　rather　be　remembered　as　a　teacher　of　the　deaf　than　as　the　inventor　of　the　telephone.　
　　30.　Because　its　leaves　remain　green　long　after　being　picked,　rosemary　became　associated　with　the　idea　of　remembrance.　
　　31.　Although　apparently　rigid,　bones　exhibit　a　degree　of　elasticity　that　enables　the　skeleton　to　withstand　considerable　impact.　
　　32.　That　xenon　could　not　form　chemical　compounds　was　once　believed　by　scientists.　
　　33.　Research　into　the　dynamics　of　storms　is　directed　toward　improving　the　ability　to　predict　these　events　and　thus　to　minimize　damage　and　avoid　loss　of　life.　
　　34.　The　elimination　of　inflation　would　ensure　that　the　amount　of　money　used　in　repaying　a　loan　would　have　the　same　value　as　the　amount　of　money　borrowed.　
　　35.　Futurism,　an　early　twentieth-century　movement　in　art,　rejected　all　traditions　and　attempted　to　glorify　contemporary　life　by　emphasizing　the　machine　and　motion.　
　　36.　One　of　the　wildest　and　most　inaccessible　parts　of　the　United　States　is　the　Everglades　where　wildlife　is　abundant　and　largely　protected.　
　　37.　Lucretia　Mott’s　influence　was　so　significant　that　she　has　been　credited　by　some　authorities　as　the　originator　of　feminism　in　the　United　States.　 　

38.　The　activities　of　the　international　marketing　researcher　are　frequently　much　broader　than　those　of　the　domestic　marketer.　
　　39.　The　continental　divide　refers　to　an　imaginary　line　in　the　North　American　Rockies　that　divides　the　waters　flowing　into　the　Atlantic　Ocean　from　those　flowing　into　the　Pacific.　
　　40.　Studies　of　the　gravity　field　of　the　Earth　indicate　that　its　crust　and　mantle　yield　when　unusual　weight　is　placed　on　them.　
　　41.　The　annual　worth　of　Utah’s　manufacturing　is　greater　than　that　of　its　mining　and　farming　combined.　
　　42.　The　wallflower　is　so　called　because　its　weak　stems　often　grow　on　walls　and　along　stony　cliffs　for　support.　
　　43.　It　is　the　interaction　between　people,　rather　than　the　events　that　occur　in　their　lives,　that　is　the　main　focus　of　social　psychology.　
　　44.　No　social　crusade　aroused　Elizabeth　Williams’　enthusiasm　more　than　the　expansion　of　educational　facilities　for　immigrants　to　the　United　States.　
　　45.　Quails　typically　have　short　rounded　wings　that　enable　them　to　spring　into　full　flight　instantly　when　disturbed　in　their　hiding　places.　
　　46.　According　to　anthropologists,　the　earliest　ancestors　of　humans　that　stood　upright　resembled　chimpanzees　facially,　with　sloping　foreheads　and　protruding　brows.　
　　47.　Not　until　1866　was　the　fully　successful　transatlantic　cable　finally　laid.　
　　48.　In　his　writing,　John　Crowe　Ransom　describes　what　he　considers　the　spiritual　barrenness　of　society　brought　about　by　science　and　technology.　
　　49.　Children　with　parents　whose　guidance　is　firm,　consistent,　and　rational　are　inclined　to　possess　high　levels　of　self-confidence.　
　　50.　The　ancient　Hopewell　people　of　North　America　probably　cultivated　corn　and　other　crops,　but　hunting　and　gathering　were　still　of　critical　importance　in　their　economy.　 　

51.　Using　many　symbols　makes　it　possible　to　put　a　large　amount　of　information　on　a　single　map.　
　　52.　Anarchism　is　a　term　describing　a　cluster　of　doctrines　and　attitudes　whose　principal　uniting　feature　is　the　belief　that　government　is　both　harmful　and　unnecessary.　
　　53.　Probably　no　man　had　more　effect　on　the　daily　lives　of　most　people　in　the　Untied　States　than　did　Henry　Ford　a　pioneer　in　automobile　production.　
　　54.　The　use　of　well-chosen　nonsense　words　makes　possible　the　testing　of　many　basic　hypotheses　in　the　field　of　language　learning.　
　　55.　The　history　of　painting　is　a　fascinating　chain　of　events　that　probably　began　with　the　very　first　pictures　ever　made.　
　　56.　Perfectly　matched　pearls,　strung　into　a　necklace,　bring　a　far　higher　price　than　the　same　pearls　told　individually.　
　　57.　During　the　eighteenth　century,　Little　Turtle　was　chief　of　the　Miami　tribe　whose　territory　became　what　is　now　Indiana　and　Ohio.　
　　58.　Among　almost　seven　hundred　species　of　bamboo,　some　are　fully　grown　at　less　than　a　foot　high,　while　others　can　grow　three　feet　in　twenty-four　hours.　
　　59.　Before　staring　on　a　sea　voyage,　prudent　navigators　learn　the　sea　charts,　study　the　sailing　directions,　and　memorize　lighthouse　locations　to　prepare　themselves　for　any　conditions　they　might　encounter.　
　　60.　Of　all　the　economically　important　plants,　palms　have　been　the　least　studied.　
　　61.　Buyers　and　sellers　should　be　aware　of　new　developments　in　technology　can　and　does　affect　marketing　activities.　
　　62.　The　application　of　electronic　controls　made　possible　by　the　microprocessor　and　computer　storage　have　multiplied　the　uses　of　the　modern　typewriter.　
　　63.　The　human　skeleton　consists　of　more　than　two　hundred　bones　bound　together　by　tough　and　relatively　inelastic　connective　tissues　called　ligaments.　 　

64.　The　pigmentation　of　a　pearl　is　influenced　by　the　type　of　oyster　in　which　it　develops　and　by　the　depth,　temperature,　and　the　salt　content　of　the　water　in　which　the　oyster　lives.　
　　65.　Although　mockingbirds　superbly　mimic　the　songs　and　calls　of　many　birds,　they　can　nonetheless　be　quickly　identified　as　mockingbirds　by　certain　aural　clues.　
　　66.　Not　only　can　walking　fish　live　out　of　water,　but　they　can　also　travel　short　distances　over　land.　
　　67.　Scientists　do　not　know　why　dinosaurs　became　extinct,　but　some　theories　postulate　that　changers　in　geography,　climate,　and　sea　levels　were　responsible.　
　　68.　The　science　of　horticulture,　in　which　the　primary　concerns　are　maximum　yield　and　superior　quality,　utilizes　information　derived　from　other　sciences.　
　　69.　Snow　aids　farmers　by　keeping　heart　in　the　lower　ground　levels,　thereby　saving　the　seeds　from　freezing.　
　　70.　Even　though　the　precise　qualities　of　hero　in　literary　words　may　vary　over　time,　the　basic　exemplary　function　of　the　hero　seems　to　remain　constant.　
　　71.　People　in　prehistoric　times　created　paints　by　grinding　materials　such　as　plants　and　clay　into　power　and　then　adding　water.　
　　72.　Often　very　annoying　weeds,　goldenrods　crowd　out　less　hardy　plants　and　act　as　hosts　to　many　insect　pests.　
　　73.　Starting　around　7000　B.C.,　and　for　the　next　four　thousand　years,　much　of　the　Northern　Hemisphere　experienced　temperatures　warmer　than　at　present.　
　　74.　When　Henry　Ford　first　sought　financial　backing　for　making　cars,　the　very　notion　of　farmers　and　clerks　owning　automobiles　was　considered　ridiculous.　
　　75.　Though　once　quite　large,　the　population　of　the　bald　eagle　across　North　America　has　drastically　declined　in　the　past　forty　years.　 　

76.　The　beaver　chews　down　trees　to　get　food　and　material　with　which　to　build　its　home.　
　　77.　Poodles　were　once　used　as　retrievers　in　duck　hunting,　but　the　American　Kennel　Club　does　not　consider　them　sporting　dogs　because　they　are　now　primarily　kept　as　pets.　
　　78.　As　a　result　of　what　is　now　know　in　physics　and　chemistry,　scientists　have　been　able　to　make　important　discoveries　in　biology　and　medicine.　
　　79.　The　practice　of　making　excellent　films　based　on　rather　obscure　novels　has　been　going　on　so　long　in　the　United　States　as　to　constitute　a　tradition.　
　　80.　Since　the　consumer　considers　the　best　fruit　to　be　that　which　is　the　most　attractive,　the　grower　must　provide　products　that　satisfy　the　discerning　eye.　
　　81.　Television　the　most　pervasive　and　persuasive　of　modern　technologies,　marked　by　rapid　change　and　growth,　is　moving　into　a　new　era,　an　era　of　extraordinary　sophistication　and　versatility,　which　promises　to　reshape　our　lives　and　our　world.　
　　82.　Television　is　more　than　just　an　electronics;　it　is　a　means　of　expression,　as　well　as　a　vehicle　for　communication,　and　as　such　becomes　a　powerful　tool　for　reaching　other　human　beings.　
　　83.　Even　more　shocking　is　the　fact　that　the　number　and　rate　of　imprisonment　have　more　than　doubled　over　the　past　twenty　years,　and　recidivism------that　is　the　rate　for　rearrest------is　more　than　60　percent.　
　　84.　His　teaching　began　at　the　Massachusetts　Institute　of　Technology,　but　William　Rainey　Harper　lured　him　to　the　new　university　of　Chicago,　where　he　remained　officially　for　exactly　a　generation　and　where　his　students　in　advanced　composition　found　him　terrifyingly　frigid　in　the　classroom　but　sympathetic　and　understanding　in　their　personal　conferences.　 　

85.　The　sloth　pays　such　little　attention　to　its　personal　hygiene　that　green　algae　grow　on　its　coarse　hair　and　communities　of　a　parasitic　moth　live　in　the　depths　of　its　coat　producing　caterpillars　which　graze　on　its　mouldy　hair.　Its　muscles　are　such　that　it　is　quits　incapable　of　moving　at　a　speed　of　over　a　kilometer　an　hour　even　over　the　shortest　distances　and　the　swiftest　movement　it　can　make　is　a　sweep　of　its　hooked　arm.　
　　86.　Artificial　flowers　are　used　for　scientific　as　well　as　for　decorative　purposes.　They　are　made　from　a　variety　of　materials,　such　as　way　and　glass,　so　skillfully　that　they　can　scarcely　be　distinguished　from　natural　flowers.　
　　87.　Three　years　of　research　at　an　abandoned　coal　mine　in　Argonne,　Illinois,　have　resulted　in　findings　that　scientists　believe　can　help　reclaim　thousands　of　mine　disposal　sites　that　scar　the　coal-richregions　of　the　United　States.　
　　88.　When　the　persuading　and　the　planning　for　the　western　railroads　had　finally　been　completed,　the　really　challenging　task　remained:　the　dangerous,　sweaty,　backbreaking,　brawling　business　of　actually　building　the　lines.　
　　89.　Because　of　the　space　crunch,　the　Art　Museum　has　become　increasingly　cautious　in　considering　acquisitions　and　donations　of　art,　in　some　cases　passing　up　opportunities　to　strengthen　is　collections.　
　　90.　The　United　States　Constitution　requires　that　President　be　a　natural-born　citizen,　thirty-five　years　of　age　or　older,　who　has　lived　in　the　United　States　for　a　minimum　of　fourteen　years.　
　　91.　Arid　regions　in　the　southwestern　United　States　have　become　increasingly　inviting　playgrounds　for　the　growing　number　of　recreation　seekers　who　own　vehicles　such　as　motorcycles　or　powered　trail　bikes　and　indulge　in　hill-climbing　contests　or　in　caving　new　trails　in　the　desert.　 　

92.　Stone　does　decay,　and　so　tools　of　long　ago　have　remained　when　even　the　bones　of　the　man　who　made　them　have　disappeared　without　trace.　
　　93.　Insects　would　make　it　impossible　for　us　to　live　in　the　world;　they　would　devour　all　our　crops　and　kill　our　flocks　and　herds,　if　it　were　not　for　the　protection　we　get　from　insect-eating　animals.　
　　94.　It　is　true　that　during　their　explorations　they　often　faced　difficulties　and　dangers　of　the　most　perilous　nature,　equipped　in　a　manner　which　would　make　a　modern　climber　shudder　at　the　thought,　but　they　did　not　go　out　of　their　way　to　court　such　excitement.　
　　95.　There　is　only　one　difference　between　an　old　man　and　a　young　one:　the　young　man　has　a　glorious　future　before　him　and　old　one　has　a　splendid　future　behind　him:　and　maybe　that　is　where　the　rub　is.　
　　96.　I　find　young　people　exciting.　They　have　an　air　of　freedom,　and　they　have　not　a　dreary　commitment　to　mean　ambitions　or　love　comfort.　They　are　not　anxious　social　climbers,　and　they　have　no　devotion　to　material　things.　
　　97.　I　am　always　amazed　when　I　hear　people　saying　that　sport　creates　goodwill　between　the　nations,　and　that　if　only　the　common　peoples　of　the　world　could　meet　one　another　at　football　or　cricket,　they　would　have　no　inclination　to　meet　on　the　battlefield.　
　　98.　It　is　impossible　to　say　simply　for　the　fun　and　exercise:　as　soon　as　the　question　of　prestige　arises,　as　soon　as　you　feel　that　you　and　some　larger　unit　will　be　disgraced　if　you　lose,　the　most　savage　combative　instincts　are　around.　
　　99.　It　has　been　found　that　certain　bats　emit　squeaks　and　by　receiving　the　echoes,　they　can　locate　and　steer　clear　of　obstacles------or　locate　flying　insects　on　which　they　feed.　This　echo-location　in　bats　is　often　compared　with　radar,　the　principle　of　which　is　similar.　

　　100.　As　the　time　and　cost　of　making　a　clip　drop　to　a　few　days　and　a　few　hundred　dollars,　engineers　may　soon　be　free　to　let　their　imaginations　soar　without　being　penalized　by　expensive　failure.