八年级英语下册阅读理解专项练习4Word文档下载推荐.docx
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B.
Becausetherewon'
tbeanyspareland,newcitieswillhavetobebuiltinthesea.Somecitiesonwaterwillhavetwolevels(层).Peoplewillliveontheupperlevel;
thelowerlevelwillbeusedfortraffic,shopsandfactories.
C.
Biotechnology(生物技术)willmakefoodbetterandhealthier.Plantsthatarenotaffected(影响)byinsectsorillnesseswillbedeveloped.Thetasteoffruitandvegetableswillbebetterandfoodwillbekeptlonger.
D.
NewtechnologywillbeusedtomakeTVsthatareonly5cmthick.Theywillhavepicturesthatareasclearasphotos.Electricalappliances(家用电器)willbequieterandwillbecontrolledbycomputer;
theywillalsouse50%lesspower.
E.
Manynewwaystocureillnesseswillbesuccessfulusingproductsofgeneticengineering(基因产品).Cureswillbefoundforthefluandthecommoncold.However,somenewillnesseswillappear.
1.Carsusingsolarpowerorelectricitywillcausefeweraccidentsandlesspollution.
T
F
2.Peoplewillbeabletoliveinthenewcitiesinthesea.
F
3.Biotechnologywillhelpdividefoodintotwogroups:
betterfoodandhealthierfood.
4.Electricalapplianceswillsave50%ofpowerbecausetheyarecontrolledbycomputer.
5.Geneticengineeringcanhelpdoctorstocureillnesses.
6.Theinformationaboveisaboutthehistoryofthedevelopmentofmodernscience.
参考答案
1.T 由A段中cleaner和safer可知。
2.T 由B段可知。
3.F 由C段第一句可知。
4.F theyarecontrolledbycomputer不是“省电”的原因。
5.T 由E段第一句可知。
6.F 由开头Readthefollowinginformationaboutthingsthatmayhappenintenyears.可知。
阅读理解17
Astrangethinghappenstonearlyeverybodyatnight.Theyturnoffthelights,pullupthecoversandclosetheireyes.Sixorsevensleepinghourslater,theywakeupagain.Strange,isn'
tit?
Sleeppuzzlesscience.Scientistsanddoctorswouldrathertalkaboutwhyonecan'
tfallasleep.Theyarenotsurewhatcausessleep.Thebestconditionsforsleeparegoodhealthandmealsneithertoobignortoosmall.Noworriesandacomfortableplaceareimportant,too.Theyadviseagainsttwoinbed.
Strangethingshappenduringsleep.Forexample,theymoveoften.Youwouldfeeltiredifyoudidn'
t.Youalsodream.Partofyourbrainisstillawakewhenyoudream.Dreaminghappenswhenthememoryandimaginationinpartsofyourbrainarestillawake.Experimentshaveshownmostofusdreamincolor.Baddreamsmaybecausedbystomachache.
Don'
tworryifyoudream.Somegreatstoriesandpoemswerebegunwhiletheirwritersslept.
1.Sleeppuzzlesscientistsbecausetheyarenotcertain___________.
A.whyonecan'
tfallasleep
B.whyonewakesup
C.bothAandB
D.whatcausessleep
2.Thebestconditionsforsleepare___________.
A.goodhealth
B.amealneithertoobignortoosmall
C.noworries
D.goodhealth,limitedmeal,noworriesandagoodplace
3.Youwouldfeeltiredduringsleepifyou___________.
A.movedtoooften
B.sleptonyourback
C.didn'
tmove
D.wenttosleeplate
4.Thebesttitleforthepassageis___________.
A.HowcanYouGetaGoodSleep
B.TheStrangenessofSleep
C.WhatHappensDuringSleep
D.TheCausesofDream
1.D 参见第二段第三句“Theyarenotsurewhatcausessleep.”
2.D 第二段后半部分作了说明:
“Thebestconditionsforsleeparegoodhealthandmealsneithertoobignortoosmall.Noworriesandacomfortableplaceareimportant,too.”
3.C 参见第三段第三句“Youwouldfeeltiredifyoudidn'
t.”
4.B 文章贯穿始终,第二段第一句已指出:
“Sleeppuzzlesscience.”
阅读理解18
Theaim(目的)ofstudentswhocametoschoolistostudy.Buttostudyrequires(需要)arightway,oryouwasteeitherthetimeorthemoney.Thefollowingarethewaysofstudying.
Thebesttimeforreadingismorning,becauseinthemorning,theairisfreshandthemindisclear.Forthatreason,wecangetgoodresult(结果).
Instudyingwemusthavepatience(耐心).Ifwehavenotknownatextwell,wemustreaditagain.Weshouldnotreadthenextonetillwehavelearnedthefirstone.
Whenwearestudying,wemustputourheartsintothebook,orwecangetnothingfromthebookwhilewearereading.
Wemustalwaysask“whys”.Ifitisnotwellunderstood,writeitdownandaskourteachersorourparents,orfriends.Inanypossibleway,wemustknowitcompletely