2017年英语四级考试练习题讲解

相关推荐

2017年英语四级考试练习题讲解

　　旧书不厌百回读，熟读精思子自知。以下是小编为大家搜索整理的2017年英语四级考试练习题讲解，希望能给大家带来帮助!更多精彩内容请及时关注我们应届毕业生考试网!

2017年英语四级考试练习题讲解

　　directions:　there　are　four　reading　passages　in　this　part.　each　passage　is　followed　by　some　questions.　for　each　question　there　are　four　suggested　answers　marked　a,　b,　c　and　d.　you　should　choose　the　one　best　answer　and　blacken　the　corresponding　letter　on　the　answer　sheet　with　a　pencil.

　　children　are　a　relatively　modern　invention.　until　a　few　hundred　years　ago　they

　　look　like　adult,　wearing　grown-up　clothes　and　grown-up　expressions,　performing　grown-up　tasks.　children　did　not　exist　because　the　family　as　we　know　it　had　not　evolved.

　　children　today　not　only　exist;　they　have　taken　over,　in　no　place　more　than　in　america,　and　at　on　time　more　than　now.　it　is　always　kids'　country　here.　our　civilization　is　child-centered,　child-obsessed.　a　kid's　body　is　our　physical　ideal.　in　kids'　country　we　do　not　permit　middle-aged.　thirty　is　promoted　over　50,　but　30　knows　that　soon　his　time　to　be　overtaken　will　come.

　　we　are　the　first　society　in　which　parents　expect　to　learn　from　their　children.　such　a　topsy-turvy　situation　has　come　to　abort　at　least　in　part　because,　unlike　the　rest　of　the　world,　ours　is　an　immigrant　society,　and　for　immigrants　the　only　hope　is　in　the　kids.　in　the　old　country,　that　is,　europe,　hope　was　in　the　father,　and　how　much　wealth　he　could　accumulate　and　pass　along　to　his　children.　in　the　growth　pattern　of　america　and　its　ever-expanding　frontier,　the　young　man　was　ever　advised　to　go　west;　the　father　was　ever　inheriting　from　his　son.　kid's　country　may　be　the　inevitable　result.

　　kid's　country　is　not　all　bad.　america　is　the　greatest　country　in　the　world　to　grow　up　in　because　it　is　kid's　country.　we　not　only　wear　kids'　clothes　and　eat　kids'　food;　we　dream　kids'　dreams　and　make　them　come　true.　it　was,　after　all,　a　boys'　game　to　go　to　the　moon.

　　if　in　the　old　days　children　did　not　exist,　it　seems　equally　true　today　that　adults,　as　a　class,　have　begun　to　disappear,　condemning　all　of　us　to　remain　boys　and　girls　forever,　jogging　and　doing　push-ups　against　eternity.

　　21.　the　author　uses　the　example　of　the　renaissance　painting　to　show　that.

　　a.　adults　showed　less　concern　for　children　than　we　do　now

　　b.　adults　were　smaller　and　thinner　at　that　time,　but　they　still　had　lots　of　work　to　do

　　c.　children　looked　and　acted　like　adults　at　that　time

　　d.　children　were　not　permitted　to　appear　in　family　paintings　at　that　time

　　22.　in　the　third　paragraph,　“the　old　country"　is　contrasted　with　america　.

　　a.　to　show　differences　in　family　size

　　b.　to　show　differences　in　attitudes　towards　family　relations

　　c.　to　show　two　kinds　of　geography

　　d.　to　show　two　different　kinds　of　economic　relations　between　generations

　　23.　going　to　the　moon　is　an　example　of　.

　　a.　america's　dreams　and　creativity

　　b.　america's　childish　and　queer　behavior

　　c.　why　america　hasn't　grown　up

　　d.　why　america　is　considered　as　the　greatest　country　in　the　world

　　24.　according　to　the　passage,　which　of　the　following　is　true?

　　a.　it　is　very　difficult　for　the　middle-aged　to　live　in　america

　　b.　america　is　kid's　country　because　the　majority　of　the　american　population　are　children

　　c.　kid's　country　was　taking　shape　in　america　when　immigrants　poured　into　the　country.

　　d.　america　is　more　of　kid's　country　than　any　other　countries　in　the　world

　　25.　by　saying　“condemning　all　of　us　to　remain　boys　and　girls　forever,　jogging　and　doing　push-ups　against　eternity",　the　author　means　that　.

　　a.　she　thinks　people　shouldn't　be　so　concerned　about　physical　fitness

　　b.　she　feels　too　old　and　tired　to　do　such　hard　exercise

　　c.　american　society　is　overemphasizing　youth　and　physical　appearance

　　d.　what　happened　to　children　centuries　ago　may　occur　to　adults　in　america　soon

　　passage　2

　　the　modern　age　is　an　age　of　electricity.　people　are　so　used　to　electric　lights,　radios,　televisions,　and　telephones　that　it　is　hard　to　imagine　what　life　would　be　like　without　them.　when　there　is　a　power　failure,　people　grope　about　in　flickering　candlelight,　cars　hesitate　in　the　streets　because　there　are　no　traffic　lights　to　guide　them,　and　food　spoils　in　silent　refrigerators.

　　yet　people　began　to　understand　how　electricity　works　only　a　little　more　than　two　centuries　ago.　nature　has　apparently　been　experimenting　in　this　field　for　millions　of　years.　scientists　are　discovering　more　and　more　that　the　living　world　may　hold　many　interesting　secrets　of　electricity　that　could　benefit　humanity.

　　all　living　cells　sent　out　tiny　pulses　of　electricity.　as　the　heart　beats,　it　sends　out　pulses　that　can　be　measured　and　recorded　on　the　surface　of　the　body.　when　the　pulses　are　recorded,　they　form　an　electrocardiogram,　which　a　doctor　can　study　to　determine　how　well　the　heart　is　working.　the　brain,　too,　sends　out　brain　waves　of　electricity,　which　can　be　recorded　in　an　electroencephalogram,　the　electric　currents　generated　by　most　living　cells　are　extremely　small-often　so　small　that　sensitive　instruments　are　needed　to　record　them.　but　in　some　animals,　certain　muscled　cells　have　become　so　specialized　as　electrical　generators　that　they　do　not　work　as　muscle　cells　at　all.　when　large　numbers　of　these　cells　are　linked　together,　the　effect　can　be　astonishing.

　　the　electric　eel　is　an　amazing　living　storage　battery.　it　can　send　a　jolt　of　as　much　as　eight　hundred　volts　of　electricity　through　the　water　in　which　it　lives.　(an　electric　house　current　is　only　one　hundred　twenty　volts.)　as　many　as　four-fifths　of　all　the　cells　in　the　electric　eel's　body　are　specialized　for　generating　electricity,　and　the　strength　of　the　shock　it　can　deliver　corresponds　roughly　to　the　length　of　its　body.

　　26.　what　is　the　main　idea　of　the　passage　?

　　a.　electric　eels　are　potentially　dangerous.

　　b.　biology　and　electricity　appear　to　be　closely　related.

　　c.　people　would　be　at　a　loss　without　electricity.

　　d.　scientists　still　have　much　to　discover　about　electricity.

　　27.　the　author　mentions　all　of　the　following　as　results　of　a　blackout　except　.

　　a.　refrigerated　food　item　may　go　bad

　　b.　traffic　lights　do　not　work

　　c.　people　must　rely　on　candlelight

　　d.　elevators　and　escalators　do　not　function

　　28.　why　does　the　author　mention　electric　eels?

　　a.　to　warn　the　reader　to　stay　away　from　them.

　　b.　to　compare　their　voltage　to　that　used　in　houses.

　　c.　to　give　an　example　of　a　living　electrical　generator.

　　d.　to　describe　a　new　source　of　electrical　power.

　　29.　how　many　volts　of　electricity　can　an　electric　eel　emit?

　　a.　1,000.

　　b.　800.

　　c.　200.

　　d.　120.

　　30.　it　can　be　inferred　from　the　passage　that　the　longer　an　eel　is　the　.

　　a.　more　beneficial　it　will　be　to　science

　　b.　more　powerful　will　be　its　electrical　charge

　　c.　easier　it　will　be　to　find

　　d.　tougher　it　will　be　to　eat

　　passage　3

　　american　scientists　have　developed　a　new　kind　of　wire　that　can　carry　telephone　messages　for　long　distances.　the　new　fluoride　glass　wire,　or　optical　fibre,　is　a　major　improvement　over　the　optical　fibres　now　used　in　many　modern　communication　systems.

　　present　optical　fibres　are　made　from　silica　glass.　they　are　not　costly　to　produce,　but　the　signals　carried　by　these　silica　optical　fibres　weaken　very　quickly.　a　repeater　device　must　be　built　every　50　kilometers　to　increase　or　amplify　the　signals'　strength.　such　repeater　devices　are　costly　and　they　need　electrical　power.　this　creates　special　problems　for　optical　fibre　systems　that　cross　oceans.　long　copper　wires　are　needed　to　carry　electricity　from　shore　to　repeater　devices　under　the　ocean.　repairing　the　underwater　repeaters　is　costly　and　takes　much　time.

　　the　new　fluoride　optical　fibre　is　only　a　little　bigger　around　than　a　human　hair,　yet　each　could　carry　10,000　telephone　messages　at　one　time　for　thousands　of　kilometers.　traditional　copper　telephone　wires　can　carry　only　4　messages.　and　unlike　present　silica　optical　fibres,　the　new　fluoride　glass　wires　could　carry　messages　for　thousands　of　kilometers　with　very　few,　if　any,　repeater　devices.

　　the　navy　scientists　developed　the　new　optical　fibres　for　systems　that　cross　oceans,　but　they　said　there　also　would　be　many　other　uses　for　the　fluoride　glass　wires.　the　new　optical　wires　could　be　used　for　long-distance　temperature　sensing　devices.　they　could　be　used　in　some　medical　operations.

　　scientists　caution　that　the　new　fluoride　optical　fibre　still　is　only　experiment.　researchers　have　not　yet　been　able　to　make　long　tiny　wires　from　fluoride　glass.

　　31.　which　of　the　following　statements　is　not　true?

　　a.　silica　optical　fibres　are　not　expensive　to　produce.

　　b.　signals　carried　by　silica　optical　fibres　are　rather　weak.

　　c.　additional　devices　are　needed　for　present　optical　fibre/fiber　systems.

　　d.　repeaters　bring　about　special　problems　for　transoceanic　communications.

　　32.　the　major　advantage　of　fluoride　optical　fibres/fibers　over　silica　wires　is　that　fluoride　glass　.

　　a.　needs　much　fewer,　if　any,　repeaters

　　b.　carries　more　telephone　messages

　　c.　is　less　costly　to　produce

　　d.　is　tinier

　　33.　the　new　glass　wire　was　designed　for　.

　　a.　communications　systems　that　cross　oceans

　　b.　long-distance　temperature　sensing　devices

　　c.　some　medical　operations

　　d.　replacing　silica　optical　fibres

　　34.　the　fluoride　optical　fibres　is　experimental　because　the　new　glass　wire　made　so　for　.

　　a.　is　quite　expensive

　　b.　can　not　yet　carry　enormous　messages

　　c.　still　needs　repeaters

　　d.　is　not　long　enough

　　35.　the　author's　main　idea　is　that　.

　　a.　present　optical　fibres　are　made　from　silica　glass

　　b.　silica　optical　fibres　need　repeaters　to　amplify　the　signals　carried

　　c.　american　scientists　have　developed　a　new　glass　wire　to　carry　long-distance　telephone　messages

　　d.　the　new　optical　fiber　had　many　uses

　　passage　4

　　there　is　no　doubt　that　adults,　and　even　highly　educated　adults,　vary　greatly　in　the　speed　and　efficiency　of　their　reading.　some　proceed　very　slowly　throughout;　others　dash　along　too　quickly　and　then　have　to　regress.　poor　readers　in　particular　may　lack　the　ability　to　vary　their　manner　of　reading　according　to　the　type　of　reading　matter　and　to　their　intentions　in　reading　it.　a　good　reader　can　move　at　great　speed　through　the　text　of　a　novel　or　similar　light　reading　matter.　he　may　be　able　to　skim　a　page,　picking　up　a　word　or　two　here　and　there,　and　gain　a　general　idea　of　what　the　text　is　about　without　really　reading　it.　in　reading　more　difficult　material,　with　the　intention　of　taking　in　the　whole　of　it,　he　will　proceed　more　slowly,　but　even　then　he　will　vary　his　pace,　concentrating　on　the　key　words　and　passages,　perhaps　re-reading　them　several　times　and　pass　more　quickly　over　the　remainder.　a　less　efficient　reader　tends　to　maintain　the　same　speed　whatever　the　material　he　reads.　consequently,　even　light　reading　matter　gives　him　little　pleasure　because　he　reads　so　slowly.　but　this　pace　may　be　too　fast　for　really　difficult　material　which　requires　special　concentration　at　difficult　points.

　　a　type　of　reading　which　necessitates　careful　attention　to　detail　is　proofreading,　in　which　the　reader,　in　order　to　detect　misprints　in　a　sample　print,　has　to　notice　not　so　much　the　meaning　of　what　he　reads　as　the　exact　shape　and　order　of　letters　and　words　in　the　text.　this　is　extremely　difficult　for　most　people,　since　they　are　accustomed　to　overlooking　such　details.　in　fact,　considerable　practice　is　required　to　practise　this　task　efficiently　and　it　can　be　done　only　be　reading　very　slowly,　and　by　paying　comparatively　little　attention　to　the　general　meaning　of　the　text.

　　36.　the　author　claims　that　there　is　a　difference　in　reading　speed　.

　　a.　among　readers　who　have　different　experience.

　　b.　among　all　the　readers.

　　c.　between　the　poorly　educated　and　the　highly　educated.

　　d.　among　the　highly　educated　people

　　37.　a　good　reader　is　a　reader　who　.

　　a.　concentrates　on　the　wonderful　part　of　the　article

　　b.　always　reads　slowly　and　carefully

　　c.　changes　his　speed　according　to　the　kind　of　text

　　d.　changes　his　speed　according　to　the　interesting　of　the　text.

　　38.　the　author　says　that　when　reading　a　novel,　a　good　reader　can　quickly　read　.

　　a.　every　part　of　the　book

　　b.　the　most　wonderful　part　in　the　book.

　　c.　the　major　part　in　the　book

　　d.　the　scientific　part　of　the　book.

　　39.　the　last　two　sentences　of　the　first　paragraph　mean　that　.

　　a.　a　reading　speed　too　slow　for　a　difficult　book　is　just　right　for　a　non-serious　one.

　　b.　a　reading　speed　too　slow　for　a　non-serious　book　may　be　too　fast　for　a　difficult　one.

　　c.　a　reading　speed　too　fast　for　difficult　material　is　just　right　for　a　non-serious　book　is　also　too　slow　for　a　difficult　one.

　　d.　a　reading　speed　too　slow　for　a　non-serious　book　is　also　too　slow　for　a　difficult　one.

　　40.　which　of　the　following　can　be　the　title　of　the　passage?

　　a.　reading　and　listening

　　b.　difference　between　highly-educated　and　poorly　educated

　　c.　practice　reading　skill

　　d.　difference　in　the　speed　and　efficiency　of　reading

　　part　iii　vocabulary　and　structure　(20　minutes)

　　directions:　there　are　30　incomplete　sentences　in　this　part.　for　each　sentence　there　are　four　choices　marked　a.,　b.,　c.　and　d..　choose　the　one　answer　that　best　completes　the　sentence.　then　mark　the　corresponding　letter　on　the　answer　sheet　with　a　single　line　through　the　centre.

　　41.　we're　leaving　at　six　o'clock　in　the　morning,　and　hope　to　most　of　the　journey　by　lunch　time.

　　a.　be　doing

　　b.　have　done

　　c.　have　been　done

　　d.　do

　　42.　i　to　call　on　you,　but　was　prevented　from　doing　so.

　　a.　mean

　　b.　have　meant

　　c.　meant

　　d.　had　meant

　　43.　my　brother　could　do　nothing　else　than　books.

　　a.　to　read

　　b.　having　read

　　c.　read

　　d.　reading

　　44.　i　have　no　objection　the　evening　with　them.

　　a.　to　spend

　　b.　spending

　　c.　of　spending

　　d.　to　spending

　　45.　the　dentist　said　that　my　tooth　went　worse　and　i　it　pulled　out.

　　a.　should　have　had

　　b.　might　have　had

　　c.　needn't　have　had

　　d.　mustn't　have　had

　　46.　he　didn't　go　into　detail　on　the　subject;　he　spoke　.

　　a.　in　common

　　b.　in　short

　　c.　in　general

　　d.　in　particular

　　47.　he　is　one　of　these　men　who,　i　am　sure,　always　do　best　even　in　most　trying　circumstances.

　　a.　them

　　b.　his

　　c.　their

　　d.　one's

　　48.　would　you　mind　the　air　conditioner?

　　a.　to　turn　on

　　b.　turning　on

　　c.　being　turned　on

　　d.　turned　on

　　49.　we　didn't　know　his　address;　otherwise　we　an　invitation　to　him.

　　a.　would　have　sent

　　b.　must　have　sent

　　c.　had　sent

　　d.　would　send

　　50.　his　carelessness,　he　failed　the　exam.

　　a.　in　spite　of

　　b.　regardless　of

　　c.　on　account　of

　　d.　in　case　of

　　51.　john's　score　on　the　test　is　the　highest　in　the　class;　he　hard　last　weekend.

　　a.　should　have　studied

　　b.　must　have　studied

　　c.　would　have　studied

　　d.　should　study

　　52.　the　computer　has　brought　about　surprising　technological　changes　we　organize　and　produce　information.

　　a.　in　a　way

　　b.　in　the　way

　　c.　in　that　way

　　d.　in　no　way

　　53.　many　countries　face　some　serious　problems　of　land　use,　result　from　population　growth　and　the　demands　of　modern　technological　living.

　　a.　most　which

　　b.　which　most

　　c.　of　most　which

　　d.　most　of　which

　　54.　the　foreign　minister's　speech　was　reported　in　all　the　leading　newspapers.

　　a.　in　all

　　b.　in　whole

　　c.　in　truth

　　d.　in　full

　　55.　it　would　have　been　just　as　satisfactory　if　i　at　home.　i　learned　nothing　in　class.

　　a.　had　stayed

　　b.　stayed

　　c.　was　staying

　　d.　would　stay

　　56.　he　wasn't　asked　to　take　on　the　chairmanship　of　the　society,　insufficiently　popular　with　all　members.

　　a.　being　considered

　　b.　considering

　　c.　to　be　considered

　　d.　having　considered

　　57.　the　child's　closely　resemble　those　of　its　brother.

　　a.　feature

　　b.　features

　　c.　future

　　d.　figure

　　58.　the　visitor　was　entrance　into　the　museum　because　he　had　no　id　paper.

　　a.　denied

　　b.　refused

　　c.　deprived

　　d.　prevented

　　59.　many　students　are　indulged　in　playing　computer　games,　which　greatly　their　time　for　study　and　rest.

　　a.　cuts　off

　　b.　cuts　out

　　c.　cuts　into

　　d.　cuts　up

　　60.　the　local　government　is　free　to　get　bids　from　companies,　thus　efficiency　by　maintaining　a　competitive　environments.

　　a.　ensuring

　　b.　insuring

　　c.　assuring

　　d.　reassuring

　　61.　the　sellers　signed　the　promising　to　ship　the　goods　before　the　end　of　july.

　　a.　contact

　　b.　treaty

　　c.　compact

　　d.　contract

　　62.　king　insisted　that　his　employees　should　have　a　knowledge　of　his　subject.

　　a.　comprehensible

　　b.　compromising

　　c.　comprehensive

　　d.　complicated

　　63.　she　felt　when　her　husband　forgot　her　birthday.

　　a.　deceived

　　b.　desperate

　　c.　hopeless

　　d.　disappointed

　　64.　it　is　difficult　for　the　casual　observer　to　distinguish　artificial　and　natural　lakes.

　　a.　from

　　b.　of

　　c.　between

　　d.　both

　　65.　the　united　states　has　greatly　its　influence　into　the　world　affairs.

　　a.　spread

　　b.　scattered

　　c.　distributed

　　d.　extended

　　66.　much　of　the　equipment　was　lying　because　of　a　lack　of　spare　parts.

　　a.　vacant

　　b.　empty

　　c.　lonely

　　d.　idle

　　67.　lisa　declined　the　man's　offer　so　as　to　show　her　disdain　for　him.

　　a.　indifferently

　　b.　frankly

　　c.　deliberately

　　d.　plainly

　　68.　nowadays,　almost　every　household　has　different　kinds　of　electrical　to　relieve　manual　labour.

　　a.　apparatus

　　b.　facilities

　　c.　appliances

　　d.　equipment

　　69.　in　with　the　new　regulations,　each　member　has　to　pay　the　fee　by　5th　every　month.

　　a.　combination

　　b.　connection

　　c.　accordance

　　d.　agreement

　　70.　you　can　blame　me　for　having　,　but　i　really　didn't　mean　to.

　　a.　kept　you　down

　　b.　let　you　down

　　c.　put　you　down

　　d.　slowed　you　down

【英语四级考试练习题讲解】相关文章：