高中英语 unit 20 new frontiers-lesson3 scientificbreakthroughs自我小测 北师大版选修7

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1、Unit20NewFrontiers-Lesson3ScientificBreakthroughsⅠ.翻译合成词1oneyearold2worldfamous3farreaching4doublechecked5massproducedⅡ.用括号内所给单词或短语的适当形式填空In1929，anotherfarreachingfinding1.______(bemade)bythesonofaScottishshepherd.Beforehe2.______(go)onholiday，biologistAlexanderFlemingleftadishwith

2、bacteriainitinhislaboratory.Whenhecameback，henoticedsomethingstrange.Hedoublecheckedand3.______(see)abluemouldinthedisharoundwhichthebacteria4.______(bedestroyed)．Thisbluemouldwasinfactthenaturalformofpenicillin，whichFlemingrealised5.______(beused)tokillbacteria.Ⅲ.单项填空1Whenyouarein

3、______，itis______thatyoushouldwrestlewiththedifficultiesincertainprocedures.A．approval；unconscious　　　　B．diagram；explicitC．dilemma；premierD．absence；thankful2Theyinventedaspecialmicroscope，______wasapatent，withwhichtheycouldoperateonthepatientswith______organs.A．/；thrilledB．that；adju

4、stedC．who；updatedD．which；donated3Thoughwesplittwoweeksago，Ihavebeen______withhimbycellphonesina______way，andmeanwhilehehasofferedamicrowaveasabirthdaypresent.A．purchasing；adequateB．corresponding；outspokenC．guaranteeing；handyD．embarrassing；electronic4Withtheassistanceofthe______，the

5、navycansend______tohitthejetsoftheenemydespitemist.A．medium；certificateB．telescopes；missilesC．microscope；databaseD．colleagues；specialists5The______ofexperimentwasthathefoundmouldbyaccident，whichwascalledpenicillinto______thediseaseforthepatients.A．issue；rescueB．outcome；cureC．enterp

6、rise；stopD．output；kill6Pleaseremain______untiltheplanehascometoacompletestop.A．toseatB．tobeseatedC．seatingD．seatedⅣ.完形填空IwasonabusoneMarchevening.Thedriverdidn't__1__tostartthebussoonbecauseitwasnotyet__2__.Amiddleagedwomangoton.Tiredandsad，shetoldherstory__3__，nottoanyoneinparticu

7、lar.Onherwaytothestation，halfofher__4__wasstolen.Theotherhalfwashiddenunderherblouse，soshe__5__stillhadsomeleft.Afewminuteslater，shestoppedcrying，butstilllooked__6__.Whenalltheseatsweretaken，thedriverstartedtheengine.Theconductorbegantocollectfares(车费)．Whenshecametoanoldmaninwornou

8、tclothes，he__7__thathehads