中考英语复习精品资料 阅读练习17.doc

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1、中考英语复习精品资料阅读练习17　　Itseemstobestrangetoyouthereisablindspot(盲点)ontheeyes.Hereisaninterestingexperiment(实验)thatcanmakesomethingdisappear,whenoneeyeisopen.　　MakeacardaboutthesizeofapostcardandwritetwoEnglishlettersLandRonit,LontheleftandRontheright.First

2、,holdthecardabout80cmawayandyouseeboththeletters.ThencloseyourrighteyeandlookattheletterRonlywithyourlefteye.Andnow,asyoumovethecardslowlytowardsyou,you’llfindtheletterLdisappearing.Butifyoumovethecardnearertoyourface,theletterwillbeseenagain.Nowdothe

3、sameexperimentwithyourlefteyeclosed,you’llfindtheletterRdisappearing.　　Whydoestheletterdisappear?Itisbecausethereisablindspotontheeye.Whentheimage(影像)oftheletterfallsontheblindspot,itwon’tbeseen.Thatiswhyeitherofthelettersdisappears.　　1.Thewriterofthe

4、passagethinksthat_____thereisablindspotontheeye.　　A.fewpeopleknowB.nooneknowsC.mostpeopleknowD.allthepeopleknow　　2.Theword“disappear”inthepassagemeans________inChinese.　　A.驱散B.消散C.消失D.遗失　　3.YoufailtoseetheletterLintheexperimentbecause___________.　　A.y

5、oureyesarepoorB.itsimagefallsontheblindspot　　D.yourlefteyeisnotopenC.youmoveitclosetoyoureye　　4.Inwhichorder(顺序)shouldyoudotheexperiment?　　①Holdthecard②Movethecardnearer③Closeyourrighteye　　④WritetwoEnglishletters⑤LookattheletterR⑥Makeacard　　A.④⑥①②③⑤B.

6、①③⑥④⑤②C.⑥①④③②⑤D.⑥④①③⑤②　　5.Thepassagemainly(主要)tellsus_______.　　A.howtofindtheblindspotB.aninterestingexperimentC.wheretheblindspotisD.thereisblindspotontheeye2用心爱心专心　　【答案与解析】这篇科普说明文通过一个简易的小实验，证实了人的眼睛里有一个盲点。当外界物体的影像落在盲点上时，人就看不见该物体了。　　1.A。仔细品读文章首句的意思，可知

7、答案只能是A。　　2.C。“…Butifyoumovethecardnearertoyourface,theletterwillbeseenagain”，由这几个句子的意思可知字母L在眼睛中消失了。注意消失和消散的区别。　　3.B。答案在“Whentheimageoftheletterfallsontheblindspot,itwon’tbeseen.”中。　　4.D。根据第二段的意思可知，此实验的顺序是：先制作一张卡片—在上面写上两个字母—拿起卡片—闭上右眼—看到字母R—让卡片离眼睛再近些。故答

8、案是D。　　5.D。通篇考虑短文，可知D为最佳答案。这由文首一句及“…Itisbecausethereisablindspotontheeye.”也可得出。2用心爱心专心