專項(xiàng)練習(xí)七選五

根據(jù)短文內(nèi)容，從短文后的選項(xiàng)中選出能填入空白處的最佳選項(xiàng)，選項(xiàng)中有兩項(xiàng)為多余選項(xiàng)。

Secretcodes（密碼）keepmessagesprivateoBanks,companies,andgovernmentagenciesusesecret

codesindoingbusiness,especialIywheninformationissentbycomputero

Peoplehaveusedsecretcodesforthousandsofyears?36Codebreakingneverlags（落后）far

behindcodemakingoThescienceofcreatingandreadingcodedmessagesiscalledcryptography。

Ther.ar.thre.mai.type.o.cryptography.3.Fo.exampIe.th.firs.letter.o.

“M.elephan.eat.to.man.eeIs.Spel.ou.th.hidde.messag."Mee.me.”

3.Yo.migh.represen.eac.lette.wit..number.Fo.example.Let'.numbe.th.letter,o.th.alphabet,i.ord

er.fro..t.26.I.w.substitut..numbe.fo.eac.letter,th.messag."Mee,me.woul.rea."1..2.1.5。“

..cod.use.symboI.t.repIac.words,phrases,o.sentences.T.rea.th.messag.o..rea.code.yo.mus.hav..

cod.book.3.Fo.exampIe.wbridge.migh.stan.fo."meet.an."out.migh.stan.fo."me。.Th.messag.

“bridg.out.wouI.actuaII.mea.

44

Mee.me..4.However,i.i.aIs.har.t.kee..cod.boo.secre.fo.long.S.code.mus.b.change,frequentIyo

A.Itisveryhardtobreakacodewithoutthecodebook.

B.InanyIanguage,someIettersareusedmorethanotherso

C.OnlypeopIewhoknowthekeywordcanreadthemessage.

D.Aslongastherehavebeencodes,peopIehavetriedtobreakthen?

E.YoucanhideamessagebyhavingthefirstlettersofeachwordspeIIitout.

F.Withacodebook,youmightwritedownwordsthatwouIdstandforotherwords.

G.AnotherwaytohideamessageistousesymboIstostandforspecificletters

oftheaIphabet.

Agardenthat*sjustrightforyou

Hav.yo.eve.visite..garde,tha.seeme.jus.righ.fo.you.wher.th.atmospher.o.th.garde,appeare.t.

tota.mor.tha.th.sum（總和.o.it.parts.

3..Bu.i.doesn'.happe.b.accident.I.start.wit.Iookin.insid.yourseI.an.understandin.wh.yo.ar.w

it.respec.t.th.natura.worI.an.ho.yo.approac.th.gardenin.process.

37

SomepeopIemaythinkthatagardenisnomorethanpIants,fIowers,patternsandmassesofcoIoro

OthersareconcernedaboutusinggardeningmethodsthatrequirelesswaterandfewerfertiIizers

（月巴料）。38oHowever,thereareanumberofotherreasonsthatmightexplainwhyyouwant

togarden0OneofthemcomesfromourearIiestyears.

?Reca11（回憶）yourchiIdhoodmemories

Ou.mode.o.wha..garde,shouI.b.ofte.goe.bac.t.chiIdhood.Grandma'.ros.garde.an.Dad'.vegetabI.ga

rde.migh.b.goo.o.bad.bu.that'.no.what'.important.3.——

-ho.bein.i.thos.garden.mad.u.feeI.I.you'.Iik.t.buiI..powerfu.bon.wit.you.garden,star.b.takin

.som.tint,recaI.th.garden,o.you.youth.4.

the.g.outsid.an.wor.ou..pIa.t.transIat.you.chiIdhoo.memorie.int.you.grown-u.garden.Hav.fun。

A.Kno.wh.yo.garden

B.Fin..goo.pIac.fo.you.ow.garden

C.It'.ou.cxpcricnc.o.th.garde.tha.matters

D.It,.delightfu.t.se.s.man.beautifu.fIowers

EoStillothersmaysimplyenjoybeingoutdoorsandclosetopIants

F.Yo.ca.produc.tha.kin.o.magica.quaIit.i.you.ow.garden,too

G.Fo.eac.o.thos.gardens,write.dow.th.stronges.memor.yo.hav.

Trainin.fo..maratho.require.carefu.preparatio.an.steady,gradua.increase.i.th.lengt.o.th.r

uns..3...bu.th.best一

fittin.runnin.shoe.yo.ca.find.N.on.ca.sa.whic.bran,wiI.wor.bes.fo.yo.o.fee.bes.o.you.feet.s.y

o.hav.t.rel.o.you.experienc.an.o.th.fee.o.eac.pai.a.yo.shop.Whe.yo.hav.foun.shoe.tha.see.righ

t.waI.i.the.fo..fe.day.t.doubIe-chec.th.fit..3...A.aIways.yo.shouI.stretch（伸

展.a.Ieas.te.minute,befor.eac.ru.t.preven.injuries.

A.Durin.th.firs.week.d.no.thin.abou.distance,bu.ru.fiv.minute.Ionge.eac.day..

3...i.i.wis.t.tak..da.of.t.rest.Bu.durin.th.nex.week.se..goa.o.a.Ieas..mil.an..haI.pe.run..

3...Afte.tw.weeks,star,timin.yourseIf..

4...Dependin.o.th.kin.o.rac.yo.pIa.t.enter,yo.ca.se.u..timetabI.fo.th.remainin.week,befor.th.

race.

B.Aftersixdays

C.Foragoodmarathonrunner

D.Beforeyoubeginyourtraining

E.Witheachday,increasethedistancebyahaIfmile

F.IftheystillfeeIgood,youcanbeginrunninginthem

G.TimespentforpreparationraisesthequaIityoftraining

H.NowyouarereadyoutagoaIofimprovingdistanceandtime

四

根據(jù)短文內(nèi)容，從短文后的選項(xiàng)中選出能填入空白處的最佳選項(xiàng)。選項(xiàng)中有兩項(xiàng)為多余選項(xiàng).

Everyon.trie.instan.noodIes（方便

面）.I.i.ver.eas.t.coo.b.pultiri.Ihe.int.Lh.boiIin.wale.an.ad.i.thus.MSG（味

精.packets.However,hav.yo.eve.wondere.whethe.thi.i.th.correc.wa.o.cookin.it._36_.I.orde.t.ma

k.th.noodIe.joi.togethe.niceI.sid.b.sid.an.achiev.beautifu.instan.noodIe.i.fron.o.us.som.for.

o.wa.coating（涂

/吉.i.needed._37_.I.i.advisabI.t.hav..brea.o.2o.day.befor.w.star.t.ea.anothe.packe.o.instan.

noodIe.a.ou.bodie.nee.abou..day.t.cIea.tha.Iaye.o.wa.coatin.awa.fro.ou.system.D.yo.kno.th.dan

ge.o.havin.to.muc.wa.coatin.store,i.ou.stomach.._38

Herearethekeypointstotakenoteofwhilepreparinginstantnoodles。

RepeatStep1andtrytostirthenoodIesagaintowashawaythewaxcoatingonthenoodles

beforecookingitinanewpotofwater?

Theimportanceisnoteatingtoomanyinstantnoodles。Itisveryimportantthatweshould

followthekeypointswhilehavingourmeaIofinstantnoodIes0

40

A.Nothingismoreimportantthanhealth,sodrinkenoughwater.

B.However,theIayerofwaxcoatingonthenoodIesisquiteharmfuI.

C.Itisveryeasytocookinstantnoodles,butwemusttakenoteoftheharmofit.

D.Whenyoufirstseethenoodles,youwiIInoticethemnice.

E.Washtheinstantnoodles0

F.Washandstirwithwarmwater0

G.ItwillIeadtocancerifitisstoredinourbodyforlongo

五

Man.fact.sugges.tha.chiIdre.ar.overweigh.an.th.situatio.i.gettin.worse.accordin.t.th.docto

rs._1_o

Somepeopleblame（責(zé)備）thefactthatwearesurrounded（包圍）byshopssellingunhealthy,

fattyfoods,suchasfriedchickenandicecream,atlowprices。_2_,thenprobabIychiIdren

wouIdbuyIesstake0awayfoodo

_3_oIagreewiththis,becausegoodeatinghabitsbeginearIyinlife,longbeforechiIdren

starttovisitfastfoodshopsoIfparentsoftengivetheirchiIdrenfriedchickenandchocoIate

ratherthanhealthyfood,theywiIIgoforsweetandsaItyfoods,andchiIdrenwillfindithard

togetridofthehabito

Ther.i..thir.reaso.fo.thi.situation.ChiIdre.thes.day.tak.ver.I