2019高考英语一轮优练题unit4astronomythescienceofthestars含解析新人教版

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1、Unit4Astronomythescienceofthestars李仕才(必修3　Unit4)【短文语法填空】根据短文内容，在空白处填入适当的内容(1个单词)或括号内单词的正确形式。TheInternet1.has_grown(grow)rapidlyinthelastthirtyyears，2.butsomeexpertsarepessimisticaboutthefutureoftheInternet.Nowsomehackerscanget3.intothecomputersofbanksandgovernmentswhileinthe

2、futureeventerroristsmay“attack”theworld’scomputers，4.causing(cause)greatdamage.However，therearemanypeople5.whoareoptimisticaboutthefutureoftheInternet.6.Whathasconvincedthemisthatpeoplecandomanythingssuchas7.buying(buy)booksandfindingoutaboutholidayoffersfromtheInternet.Here

3、aresomepeople’spredictions.Therewillbeahuge8.growth(grow)inshoppingontheInternetandwewillget9.entertainment(entertain)fromtheInternet，sothattelevisionwilldisappearaswellasthemailservice.Theuseofcomputerswithsoundsandpictureswillmakeyoufeelasifyouareinarealsituationandvirtual

4、10.reality(real)willbecomeapartofmodernlife.Ⅰ.阅读理解A(2016·兰州诊断)Oneofmyfirstmemoriesasachildinthe1950swasadiscussionIhadwithmybrotherinourtinybedroominthefamilyhouseinBethlehem,Pennsylvania.WehadheardinschoolaboutaplanetcalledPluto.Itwasthefarthest,coldest,anddarkestthingachil

5、dcouldimagine.Weguessedhowlongitwouldtaketodieifwestoodonthesurfaceofsuchafrozenplacewearingonlytheclotheswehadon.WetriedtofigureouthowmuchcolderPlutowasthantheAntarctic,orthanthecoldestdaywehadeverexperiencedinPennsylvania.Pluto,whichfamouslywasdowngradedfroma“majorplanet”t

6、oa“dwarfplanet”(矮行星)in2006,capturedourimaginationbecauseitwasamysterythatcouldcompleteourpictureofwhatitwaslikeatthemostremotecornersofoursolarsystem.Pluto’sunderdogdiscoverystoryispartofwhatmakesitsoattractive.ClydeTombaughwasaKansasfarmboywhobuilttelescopesoutofspareautopa

7、rts,oldfarmequipmentandself-groundlenses.AsanassistantatLowellObservatoryinFlagstaff,Arizona,Tombaugh’staskwastosearchmillionsofstarsforamovingpointoflight,aplanetthattheobservatory’sfounderthoughtexistedbeyondtheorbitofNeptune.OnFebruary18,1930,Tombaughfoundit.Plutowasthefi

8、rstplanetdiscoveredbyanAmerican,andrepresentedamomentoflightinthemidstofthe