阅读理解．

阅读短文，根据其内容，从各题所给的四个选项中，选择最佳答案．

DoyouknowAustralia?Australiaisthelargestislandintheworld.ItisalittlesmallerthanChina.Itisinthesouthoftheearth.Australiaisbig,butitspopulationisnotlarge.ThepopulationofAustraliaisnearlyaslargeasthatofShanghai.

Thegovernmenthasmadeenoughlawstofightpollution.ThecitiesinAustraliahavegotlittlesirorwaterpollution.Theskyisblueandthewaterisclean.Youcanclearlyseefishswimmingintherivers.Plantsgrowverywell.

LastmonthwevisitedPerth,thebiggestcityinWesternAustralia,andwenttoawildflowers'exhibition.Therewesawalargenumberofwildflowerswehadneverseenbefore.Wehadawonderfultime.Perthisfamousforitsbeautifulwildflowers.InspringeveryyearPerthhasthewildflowers'exhibition.AftervisitingPerth,wespentthedayinthecountryside.Wesatdownandhadarestnearapathatthefootofahill.Itwasquietandweenjoyedourselves.Suddenlyweheardbellsringingatthetopofthehill.Whatwesawmadeuspickupallourthingsandrunbacktothecarasquicklyaswecould.Therewereaboutthreehundredsheepcomingtowardsusdownthepath.

Australiaisfamousforitssheepandkangaroos.Afterashortdrivefromanytown,youwillfindyourselfinthemiddleofwhitesheep.Sheep,sheep,everywherearesheep.

1．Australiais________.

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A．thelargestcountryintheworld.

B．aslargeasShanghai.

C．notaslargeasChina

D．thelargestislandinthenorthoftheearth

2．Thegovernmenthadmade________.

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A．tooenoughlawstofightpollution

B．somanylawsthatitcanfightpollution

C．enoughlawsthatitcanhardlyfightpollution

D．enoughlawsbecausethepollutionisveryserious

3．WhichofthefollowingisNOTtrue?

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A．Perthisfamousforitsbeautifulwildflowers.

B．PerthisbiggerthananyothercityinWesternAustralia.

C．PerthliesinthewestofAustralia.

D．NoothercityislargerthanPerthinAustralia.

4．InPerthyoumayvisitawildflowers'showin________.

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A．OctoberB．JanuaryC．MayD．July5．Whichofthefollowingistrue?

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A．Australiaisfamousforitssheep,k