2019高考英语一轮优练题 Unit 4 Astronomy the science of the stars（含解析）新人教版必修3

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1、Unit4Astronomythescienceofthestars(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.intotheputersofbanksandgovernmentswhileinthef

2、utureeventerroristsmay“attack”theworld’sputers，4.causing(cause)greatdamage.However，therearemanypeople5.whoareoptimisticaboutthefutureoftheInternet.6.Whathasconvincedthemisthatpeoplecandomanythingssuchas7.buying(buy)booksandfindingoutaboutholidayoffersfromtheInternet.Her

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

4、ual10.reality(real)willbeeapartofmodernlife.Ⅰ.阅读理解A(2016·兰州诊断)Oneofmyfirstmemoriesasachildinthe1950swasadiscussionIhadwithmybrotherinourtinybedroominthefamilyhouseinBethlehem,Pennsylvania.WehadheardinschoolaboutaplanetcalledPluto.Itwasthefarthest,coldest,anddarkestthing

5、achildcouldimagine.Weguessedhowlongitwouldtaketodieifwestoodonthesurfaceofsuchafrozenplacewearingonlytheclotheswehadon.WetriedtofigureouthowmuchcolderPlutowasthantheAntarctic,orthanthecoldestdaywehadeverexperiencedinPennsylvania.Pluto,whichfamouslywasdowngradedfroma“maj

6、orplanet”toa“dwarfplanet”(矮行星)in2006,capturedourimaginationbecauseitwasamysterythatcouldpleteourpictureofwhatitwaslikeatthemostremotecornersofoursolarsystem.Pluto’sunderdogdiscoverystoryispartofwhatmakesitsoattractive.ClydeTombaughwasaKansasfarmboywhobuilttelescopesouto

7、fspareautoparts,oldfarmequipmentandself-groundlenses.AsanassistantatLowellObservatoryinFlagstaff,Arizona,Tombaugh’staskwastosearchmillionsofstarsforamovingpointoflight,aplanetthattheobservatory’sfounderthoughtexistedbeyondtheorbitofNeptune.OnFebruary18,1930,Tombaughfoun

8、dit.PlutowasthefirstplanetdiscoveredbyanAmerican,andrepresentedamomentoflightinthemidstoftheGreatDepression’sd