第三部分 阅读（共两节，满分40分）

第一节 阅读理解（共15小题，每小题2分，满分30分）

阅读下列三篇短文，从每题所给的四个选现（A、B、C和D）中，选出最佳选项，并在答题卡上将该项涂黑。

Americanliketovisitthenationalparks.In1996over250000000peoplevisitedareasrunbytheNationalParkService.Expertspredictthatby2010500000000peopleperyearwillvisittheparks.Asaresultpeoplearetryingtothinkofwaystoprotecttheparksfromthecrowds.

Thecrowdingoftheparkshascausedseveralproblems.Oneisthatthereisnotenoughspaceforallofthepeoplewhowanttousetheparks.Tocopewiththisproblemnationalparksmayrequirereservationsmonthsinadvanceforsomespots.TheParkServicemayalsoraiseentrancefeesattheseplaces.

Anotherproblemcausedbyincreasedparkuseispollution.Somegarbageandwastecanbecleanedupandthecleanupcanbepaidforbyincreasedentrancefees.Tocutdownonnoisepollutionandairpollutionofficialsmaydecreasethenumberofcarsallowedinparks.Ifthishappenspeoplemayusebusestotravelaroundtheparks.Officialsmayalsolimittheuseofjet-skissnowmobiles(摩托雪橇)motorboatsandsightseeinghelicoptersandplanes.

Theparksarealsothreatenedbydevelopmentthatisgoingonaroundthem.ForexamplearoundYellowStoneParkmanymotels(汽车旅馆)golfcoursesresortsandothertouristattractionshavebeenbuilt.Someofthesedevelopmentsaffectareasthatareusedbyanimals.Peoplewillhavetolearntoagreeaboutwaystoprotecttheparks.Iftheydonottherewillsoonbenoreasontovisitthesenationaltreasures.

1.By2010thenumberofvisitorswillriseby______peryear.

A.250million B.500million C.2.5billion D.5billion

2.Ifyouwanttovisitthenationalparksyoumayhaveto_____inthefuture.

A.paylessthanbefore B.staythereformonths

C.booktheticketbeforemonths D.fillinaformtoapplyfortheticket

3.Entrancefeesmaybeincreased_______.

A.justforthebenefitoftheNationalParkService

B.eithertolimitthenumberofvisitorsortopayforthecleaner

C.notonlytoprotecttheanimalsbuttoreducethenoisepollution

D.merelyforthedevelopmento