九年级英语专题复习八.doc

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1、初中英语九年级寒假在线课堂专题复习八(阅读理解)(2015南通)ALet'strydoingthefollowingexperiment.Whattodo：Usestringtohangapapercliporothersmallobjectataboutchest(胸部)level.Pickupastick,suchasabroomhandle.Takethreeorfourstepsawayfromthepaperclip.Nowcloseoneeyeandwalktowardthepaperclip.Try

2、totouchitwiththetipofthestick.Ifyoumiss,tryagain,stillkeepingoneeyeclosed.Nowtryitwithbotheyesopenandseeifit'seasiertodo.Howitworks：Intheexperiment,youhavetojudgehowfarawaythepaperclipis.Yourbrainhasseveralwaysofdoingthis.Onesimplewaydependsonhowmuchyoureyeha

3、stofocus(聚焦)itself.Usingonlyoneeye,mostpeoplewillfinditdifficulttotouchthepapercliponthefirsttry,butthebrainstillgetssomeinformationaboutdistance—thoughnotmuch.Yourbraincanjudgedistancemuchbetterwhenyoulookatsomethingwithbotheyes.Infact,yourbrainhasmorethanon

4、ewaytousebotheyesinjudgingdistance.Forexample,toseeanythingclearly,youhavetomakebothofyoureyespointattheobject.Whenyoulookatanearbyobject,youreyesturninward.Youcanfeelthishappeningifyoulookatthetipofyourfingerandmoveyourfingertowardyournose.Yourbraingetsinfor

5、mationfromtheeyesabouthowmuchtheyarepointingtowardeachother.Usingthatinformation,thebraincantellhowfarawayanyobjectis,whetheritisabasketballorapaperclip.(　　)1.Howmanymaterialsdoweneedatleasttodotheexperiment?A.Two.　　B.Three.　　C.Four.　　D.Five.(　　)2.Thepassagei

6、smainlyaboutthatwitheyesourbraincanjudge________.A.howbiganobjectisB.howhighanobjectisC.howfarawayanobjectisD.howmuchinformationanobjectgives(　　)3.WhichofthefollowingisTRUEaccordingtothepassage?A.Ourbrainjudgesdistanceinonewaywhenweusebotheyes.B.Ourbraincanno

7、tjudgethedistanceofasmallobjectbutabigone.C.Howmuchoureyesfocushelpsourbrainjudgethesizeofanobject.D.Howmuchoureyesfocushelpsourbrainjudgethedistanceofanobject.(　　)4.Fromtheexperimentwecaninfer(推断)________.A.withoneeyewecanseeanobjectasclearlyasweusetwoeyesB.

8、oureyesturntowardstheinsidewhenwelookatanobjectverynearC.within3or4steps,theneareranobjectis,themoreclearlywecanseeitD.ourbraincanhardlygetanyinformationaboutdistancewhenweuseoneeye(2017台