时同步君：Unit4《Astronomy：thescienceofthestars》SeactionⅡLearningaboutLanguage(含解析)

绝密★启用前Unit4Astronomy：thescienceofthestars2.LearningaboutLanguage一、课文缩写Theearthwasjustacloudof__1__afterthe“BigBang”．Theearth__2__loudlywithfireandrock.Theywerein__3__toproducemanythings,whichweretomaketheearth'satmosphere.Astheearthcooleddown，waterbegantoappearonitssurface.Itallowedtheearthtodissolve__4__gases.Thenlifebegantodevelop.Thefirstsmallplants__5__andfilledtheoceansandseaswithoxygen.Thisencouragedthe__6__ofearlyshellfishandfish.Landanimalssuchasinsec，tsreptilesanddinosaursandsoonappearedaftergreenplantsappeared.Smallcleveranimals__7__allovertheearth.Theyareputtingtoo__8__carbondioxideintotheatmosphere,which__9__heatfromtheearthintospace.Whetherlifewillcontinueontheearthformillionsofyearstocomewill__10__onwhetherthisproblemcanbesolved.二、单词拼写11.Hewasinterestedin天文学）andalwaysstayedupatnighttowatchthestars.12．Computerhackershavebrokendownsecurity（系统）,raisingquestionsaboutthesafetyofinformation.Toomuchsugarcanbe伤害）tochildren'steeth.Thethree-starhoteloffersafriendly气氛）andpersonalservice.Whatyoudidwould（阻止）thechildrenfromplayingcomputergamestoomuch.Mary's（到场）atthepartylastnightwasnotnoticed.6（乘）by5is30.（理论）isbasedonpractice.Notlongagoa[J烈）earthquakeoccurredoffthecoastofIndonesia.2020．Mysister（困惑）meandcausesmeanxiety.三、句型转换21．Hewentbackhome,andhefelttiredandhungry.Hewentbackhome，.他回到家时又累又饿。22．Nowtheweatherisfine,let'sgoforapicnic.theweatherisfine,let'sgoforapicnic.既然天气那么好，我们去野餐吧。23．Youmustwatchoutforwildanimalswhenwalkingthroughtheforest.Youmustforwildanimalswhenwalkingthroughtheforest.穿行森林时，你必须提防野兽。24．ShuhowLinisanexcellentbasketballplayerlikeYaoMing.ShuhowLinisexcellentabasketballplayerYaoMing.林书豪与姚明一样都是优秀的篮球队员。25．Hisapartmentisthreetimesaslargeasmine.Hisapartmentisthreetimesmine.他的公寓是我的公寓的三倍大。四、完形填空TerrorattackedtheheartoftheWorldWarIsoldier，ashesawhislifelongfriendfallinginthebattle.Caughtinatrench（战壕）with26gunfirewhizzing（飕飕地移动）overhishead，thesoldieraskedhis27ifhemightgooutintothe“NoMan'sLand”betweenthetrenchestobringhis28partnerback．“Yocuango，”saitdheofficer，“buItdon'tthinkitwillbeworthit．Yourfriendis29deadandyoumaythrowyourown30away．”Theofficer'swordsdidn't31tohim，andthesoldierwentanyway.Surprisinglyhe32toreachhisfriend，lifthimontohis33，andbringhimbacktotheirowntrench．Asthetwoofthem34intogethertothebottomofthetrench，theofficer35thewoundedsoldier，andthenlookedkindlyathisfriend．“tIoldyouitwouldn'tbeworthit，”hesaid．“Youfriendisdead，andyouareterriblywounded．”“Iwtasworthit，36，sir，”thesoldiersaid．“Whadtoyoumeanby‘worthit'?”37otfhfiecer．“Youfriendisdead!”“Yesir，”thesoldieranswered．“BuitwasworthitbecausewhenIgottohim，hewasstill38，andIhadthe39ofhearinghimsay，‘Ji，mIknewyou'dcome．'”Manyatimein40，whetherathingisworthdoingornotreallydependson41youlookatit．Takeupallyour42anddosomethingyour43tellsyoutodosothatyoumaynot44doingitlaterinlife．Mayeachandeveryoneofyoubeblessedwiththecompanyof45friends．26．A．brightB．dustyC．continuousD．loose27．A．partnerB．officerC．reporterD．relative28．A．gratefulB.forgetfulC．selflessD．helpless29．A．probablyB．personallyC．exactlyD．entirely30．A．workB．lifeC．gunD．friendship31．A．matterB．agreeC．escapeD．succeed32．A．triedB．decidedC．plannedD．managed33．A．handsB．headC．shoulderD．legs34．A．trappedB．fellC．exploredD．competed35．A．checkedB．recoveredC．persuadedD．transported36．A.althoughB．thenC．whileD．anyhow37．A．advisedB．warnedC．respondedD．ordered38．A．aliveB．afraidC．affectedD．amazed39．A．realityB．satisfactionC．responsibilityD．experience40．A．lifeB．battlesC．natureD．society41．A．whatB．howC．whenD．why42．A．attentionB．mercyC．courageD．money43.A.intelligenceB.friendC.characterD.heart44.A.forgetB.rememberC.regretD.admit45.A.trueB.straightC.generousD.native五、七选五根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。Ebolaisadangerousvirusthatcancausepeopletogetverysickandevendie.ThevirusiscausingthebiggestproblemsinwesternAfrica,whereithasspreadquickly.Butitcangetworseandcauselife-threateningsymptoms症状）,suchasbleedingandtroublebreathing.47.Eboladoesnotspreadlikecoldsortheflubecauseitdoesnotfloatthroughtheair.Ebolaalsodoesn'stpreadthroughfoodorwater,likesomeotherviruses.Instead,Ebolaspreadswhensomeonetouchesthebodyfluids液体）ofasickperson.48.Anoutbreakiswhenmanypeoplearegettingsickwiththesameillnessaroundthesametime.Youmayhaveheardofafluoutbreak,whichiswhenlotsofpeoplegetsickfromthesametypesoffluvirus.Whenanoutbreakhappensbecauseofavirus,morepeoplecouldgetsickbecausethereisalotofthatvirusaround.WheredidEbolacomefrom?Scientistsaren'sturehowthefirstpersongetsEbolaatthestart.49.TropicalanimalsinAfricabelievedtocarrythevirusincludegreatapes,chimpanzees,gorillas,monkeys,fruitbats,porcupines,andforestantelopes.WhatdokidsneedtodoaboutEbola?EbolaismakingmanypeoplesickinAfrica,butnomatterwhereyoulive,it'alswaysagoodideatowashyourhandswellandoften.50.HowdopeoplecatchEbola?Buttheythinkthatpeoplemaypickupthevirusbytouchingoreatinginfectedanimals.WhydoIneedtowashmyhands?It'vesryimportantthatinfectedpeoplegettreatmentrightaway.Ebolasymptomscanstartwithfeverandheadache,kindofliketheflu.Whatisanoutbreak?Keepinghandscleancanhelpprotectyoufromcommonillnesseslikecoldsandtheflu.Unit4Astronomy：thescienceofthestars2.LearningaboutLanguage参考答案与解析一、课文缩写【答案】dustexplodedtimeharmfulmultiplieddevelopmentspreadmuchpreventsdepend二、单词拼写【答案】astronomysystemsharmfulatmospherepreventpresencemultipliedTheoryviolentpuzzles三、句型转换【答案】tiredandhungryNowthatkeepagoodwatchas；asthesizeof四、完形填空【答案】26．C27．B28．D29．A30．B31．A32．D33．C34．B35．A36．D37．C38．A39．B40．A41．B42．C43．D44．C45．A【解析】文章通过士兵在战地救战友的事情，告诉我们当对一件事无法作出选择时，跟着我们的心走仔细倾听内心的声音，才能做出无悔的选择。C考查形容词。A.bright明亮的，聪明的；B.dusty积满灰尘的；C.continuous连续的；D．loose松的。此处指炮火不断地从他头顶飞过，根据情境选C.B考查名词。A.partner伙伴；B.officer长官；C.reporter记者；D.relative亲戚。士兵向他的长官请示他是否能把战友带回来，下文反复提到两人的对话，故选B.D考查形容词。A.grateful感激的；B.forgetful健忘的；C.selfless无私的；D.helpless无助的。此处指无助的战友，根据下文可知战友可能已经死了，故选D.A考查副词。A.probably大概，或许；B.personally亲自地；C.exactly恰好地，正是；D.entirely完全地。此处指战友或许已经死了，表示可能性。故选A.B考查名词。A.work工作；B.life生活；C.gun枪支；D.friendship友谊。长官认为士兵这样做不值得，战友可能已经死了他自己因为救战友也可能会丧命。此处指扔掉自己的生命，故选B.A考查动词。A.matter有关系；B.agree同意；C.escape逃脱；D.succeed成功。此处指长官的话并没有影响士兵，他没改变主意。故选A.D考查动词。A.tried尝试；B.decided决定；C.planned计划；D.managed设法完成。令人吃惊的是他设法成功到达朋友那里，指设法成功做成某事用managetodo，故选D.C考查名词。A.hands手；B.head头；C.shoulder肩膀；D.legs腿。此处指把朋友扛起来背到肩膀上，故选C.B考查动词。A.trapped困住；B.fell掉下，摔倒；C.explored探索；D.competed完成。此处指两人摔倒在战壕里，根据情境选B.A考查动词。A.checked检查；B.recovered恢复；C.persuaded说服；D.transported运输。长官给刚背回来的伤员检查伤情，故选A.D考查副词。A.although虽然，尽管；B.then然后；C.while然而；D.anyhow无论如何。长官认为不值得，朋友已经死了士兵也差点受伤。士兵回答说无论如何他认为值，根据语境选D.C考查动词。A.advised建议；B.warned警告；C.responded回应；D.ordered命令。此处指长官对士兵的回答回应到，故选C.A考查形容词。A.alive活着的；B.afraid害怕的；C.affected受影响的；D.amazed惊奇的。此处指士兵到达那里时，战友还活着。根据下文战友说的话也知，故选A.B考查名词。A.reality现实；B.satisfaction满意；C.responsibility责任；D.experienee经历，经验。此处指士兵很满意听到朋友说知道他会来，故选B.A考查名词。A.life生活；B.battles战斗；C.nature自然；D.society社会。此处指生活中有多次这种情况，根据常识选A.B考