OverheadbridgesarefoundinmanypartsofNanjingespeciallyinplaceswheretrafficisveryheavyandcrossingtheroadisverydangerous.

Thepurposeofthesebridgesistoenablepassengerstocrossroadsafely.Overheadbridgesareusedinverymuchthesamewayaszebracrossings.Theyaremoreefficientalthoughlessconvenientbecausepeoplehavetoclimbupalongflightofsteps.Thisisinconvenientespeciallytooldpeople.Whenpassengersusingazebracrossingtrafficisheldup.Thisiswhythegovernmenthasbuiltmanyoverheadbridgestohelppassengersandtokeeptrafficmovingatthesametime.

ThegovernmentofNanjinghasspentmuchmoneyinbuildingthesebridges.Fortheirownsafetypassengersshouldbeencouragedtouse.Theycan’trisktheirlivesbyrunningacrosstheroad.Oldpeoplemaythinkthatitisalittledifficulttoclimbupanddownthestepsbutitismuchsaferthanwalkingacrosstheroadwithallthedangerousofmovingtraffic.

Overheadbridgesserveaveryusefulpurpose.Passengersbotholdandyoungshouldmakeitahabittousethem.Thiswillpreventunnecessaryaccidentsandlossoflife.

1.Whatistheadvantage(优点)ofoverheadbridgesmentionedinthispassage?

A.Tallertruckscanpassunderthem.

B.Passengerscanclimbupandhaveagoodviewofthecity.

C.Theyaresaferforthepassengersandkeeptrafficmovingatthesametime.

D.Theyareeasierandmoreconvenientforthepassengers.

2.WhywereoverheadbridgesbuiltinNanjing?

A.Becausetheystoptrafficfrombeingheldup.

B.Becausetheyprovideaneasywayforthedriverstocrosstheroad.

C.Becausetheysavemoneyforthegovernment.

D.Becausetheysavetimeforthepassengers.

3.Whichofthefollowingstatementsistrueaccordingtothepassage?

A.OverheadbridgesarefoundineverypartofNanjing.

B.OverheadbridgesarefoundinthecentreofNanjing.

C.OverheadbridgesarefoundinmanypartsofbigcitiesinChina.

D.Overheadbridgesarefoundinplaceswheretrafficisheavy.

4.Theunderlinedwords“azebracrossing”probablymean_______.

A.asafeplaceacrossroadforpassengerstowalkacrosstheroad