Thebicycleisoneofthesimplestye-查字典问答网
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  Thebicycleisoneofthesimplestyetmostusefulinventions(发明)intheworld.WhatismostsurprisingisthatitwasnotinventedearlieralthoughthegreatinventorLeonardodaVincihaddrawn

  Thebicycleisoneofthesimplestyetmostusefulinventions(发明)intheworld.WhatismostsurprisingisthatitwasnotinventedearlieralthoughthegreatinventorLeonardodaVincihaddrawnpicturesforbicyclesandalsoforflyingmachinesandsomeotherthings.Thosethingswerenotproduced(生产)untillongafterhedied.

  Apersonridingabicycleuseslittleenergy(能量)tomakethebicyclemoveandthereisnopollution(污染)atallwhenyouareriding.Evensoindevelopedcountriesmostpeopledon’ttraveltoworkbybicycle.Itisnotbecausethebicyclesareexpensiveorpeoplefeeltirediftheyridetowork.It’sbecausethenumberofcarsontheroadsbecomeslarger.Itcertainlybecomesmoredangeroustorideabicycle.Asaresultmorepeopleputtheirbicyclesawayandgotoworkintheircarsandinthiswaythesituation(情形)ismademoreserious.Perhapsthebestwaytomakeridingsaferandmorepopularistocreatepaths(开设通道)onlyforbicyclesandtomakeitsodifficultandexpensivefordriverstotaketheircarsintothecitythattheywillgobacktousingtheirbicycles.

  (1)

  Bicycleswasinvented________.

  []A.

  byLeonardodaVinci

  B.

  longbeforeLeonardodaVincidied

  C.

  soonafterLeonardodaVincidied

  D.

  longafterLeonardodaVincidied

  (2)

  Ifyouwanttomakethebicyclemoveyouneed________.

  []A.

  rideashardasyoucan

  B.

  noenergyatall

  C.

  littleenergy

  D.

  quitealotofenergy

  (3)

1回答
2020-05-17 01:50
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陈少民

  答案:1.D;2.C;3.A;4.D;5.B;

2020-05-17 01:51:49

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