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高升专类论文范文集,与网络教育学生陕西,网络教育学生文相关发表论文

本论文是一篇高升专类发表论文,关于网络教育学生陕西,网络教育学生文相关专升本毕业论文范文。免费优秀的关于高升专及网络教育及用英语写方面论文范文资料,适合高升专论文写作的大学硕士及本科毕业论文开题报告范文和学术职称论文参考文献下载。

plamorethanaweekago.Scientistsareveryexcitedaboutthesemachines'safelandingonMars.Itmeansthatnowwehaveanexcellentchancetolookforwaterandothersignsoflife.Sofar,therobotshavefoundsomestonesthatcouldshowMarswasonceawetandwarmpla.

ButthetripsmadebySpiritandOpportunityweredangerous.Marsisoftencalledthe"deathpla",becauseinthepastitsenvironmenthasbeenunfriendlytotherobotexplorers.BeforeSpiritandOpportunity,nearlyfortyspaceshipshadbeensenttoMarssincethe1960s.Two-thirdsofthemfailed.Thefirstspaceship,Korabl,sentin1962byRussiawasamongthem.Itbrokeapart(分裂)neartheearth.

()33.Foralongtimehumansthink________.

A.theycansurelyfindlifeonMars

B.theremaybelifeonMars

C.it'stoolateforthemtoexploreMarsnow

D.Marsistheonlyplathathaslifeonit

()34.Thetworobots_______.

A.havefoundoutthatitiswarmandwetonMars

B.weresenttoMarstofindsomestones

C.werethefirsttwoAmericanrobotsthatlandedonMars

D.aretheonlymachinesthathavelandedonMarssofar

()35.Thethirdparagraphmainlytellsus________.

A.it'saveryhardanddangeroustripforspaceshipstoMars

B.two-thirdsofthespaceshipssenttoMarshavefailed

C.SpiritandOpportunitylandedonMarssuccessful

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D.Marsiscalledthe"deathpla"

()36.Fromthispassagewelearnthat________.

A.thetworobotshavefoundwateronMars

B.OpportunitytouchedonMarsaweeklaterthanSpirit

C.it'sexcitingtohavethechancetolookforsignsoflifeonMars

D.KorablwasthefirstRussianmachinetolandonMars

ManychildrenusetheIntertogetusefulknowledgeandinformation,andtorelaxintheirfreetime.Butsomeofthemarenotusinginagoodway.HerearesomerulestomakesureyouaresafeandhavefunontheInter.

●MakerulesforInterusewithyourparents.Forexample,whenyoucangoonline,forhowlongandwhatactivitiesyoucangoonline.

●Don'tgiveyourpassword(密码)toanyoneelse,andneverleakoutthefollowinginformation---yourrealname,homeaddress,age,school,phonenumberorotherpersonalinformation.

●Checkwithyourparentsbeforegivingoutacredit(信用)cardnumber.

●Neversendaphotoofyourselftosomeoneine-mailunlessyourparentssayit'sOK.

●Checkwithyourparentsbeforegoingintoachatroom.Differentchatroomshavedifferentrulesandattractdifferentkindsofpeople.Youandyourparentsmustmakesureit'sarightplaceforyou.

●NeveragreetomeetsomeoneyoumetontheInterwithoutyourparent'spermission(允许).Nevermeetanyoneyoumetonlinealone.

●Alwaysrememberthatpeopleonlinemaynotbewhotheysaytheyare.Treateveryoneonlineasstrangers.

●Ifsomethingyouseeorreadonlinemakesyouunfortable,leavethesite.Tellaparentorteacherrightaway.

●Treatotherpeopleasyou'dliketobetreated.Neverusebadlanguage.

●Remember—noteverythingyoureadontheInteristrue.

()37.It'sgoodforchildrento________ontheInter.

A.givepasswordtoothers

B.getusefulknowledgeandinformation

C.giveoutacreditcardnumber

D.gointoachatroomasthey'dliketo

()38.Theunderlinedphrase"leakout"inthethirdparagraphmaymean"________."

A.giveawayB.leaveoutC.giveoutD.putaway