聪明文档网
最新最全的文档下载
当前位置：
首页> 正在进行安全检测...
正在进行安全检测...
时间： 下载该word文档
精校版
广州市西关外国语（实验）学校2021届中考复习阶段一模测试
一、语法选择
阅读下面短文，按照句子结构的语法性和上下文连贯的要求，从1～15题所给的A、B、C和D项中选出最佳选项，并在答题卷上将该项涂黑。
Spendingtwoorthreehours__1__outdoorseachdaycanreduceachild'schanceof__2__short-sighted(近视aresearchstudyshows.Itchallengesthebeliefthatshort-sightedness__3__bycomputeruse,watchingTVorreadinginweaklight.
TheAustraliangovernmentresearchersbelieve__4__sunlightisgoodforpeople'seyes.Theycomparedthevisionandhabitsof100__5__childreninSingaporeandAustralia.Inall,30%oftheSingaporeanchildrenwereshort-sighted-thisratewastentimes__6__thanAustralianchildren.
__7__groupsspentasimilaramountoftimereading,watchingtelevisionand playing computergames.__8__,theAustralianchildrenspentanaverageoftwohoursadayoutdoors--90minutesmorethantheSingaporeanchildren.
ProfessorIanMorgan,__9__isfromtheAustralianResearchCouncilsVisionCentre,said,"Humansare__10__long-sighted,butwhenpeoplebegintogotoschoolandspend__11__ornotimeoutdoors,thenumberofshort-sightedpeople__12__larger.We'realsoseeingmoreandmoreshort-sightedchildrenincitiesallaroundtheworld-andthemainreason__13__thatcitychildrenspendlesstimeoutdoors."
Daylightcanbehundredsoftimesbrighterthanindoorlight.However,Whydoes__14 __ outsidepreventus__15__becomingshort-sighted?Scientistsbelievethatnaturallighthassomethinghelpfulforpeopleseyes.(1.A.onplaying(2.A.become(3.A.caused(4.A.how
B.play
1 Ctoplay
D.playingD.becomesD.causingD./D.7-year-oldD.morehighlyD.AllD.ThusD.thatD.natured
B.becameB.iscausedB.why
C.becomingC.causes
C.whetherC.7year-oldC.highlyC.Either
(5.A.7-years-old(6.A.his(7.A.Both
B.7-yearoldB.higher
B.NeitherB.HoweverB.whichB.nature
(8.A.Therefore(9.A.whom(10.A.naturally
C.ThoughC.whoC.natural
精校版
(11.A.more(12.A.gets