2019版高考英语一轮复习单元检测五ALessoninaLab外研版必修1

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1、单元检测（五）ALessoninaLabⅠ.阅读理解ABeingintheschool'ssciencelabcanbeexciting,becauseyou'redoingsomethingdifferentfromsittingatyourdesklisteningtoyourteacher.Butfunaslabworkis,youhavetoobservethesafetyrulesifyoudon'twanttohurtyourselforyourlabpartner.Thefirstruleistobehaveresponsiblyinthel

2、aboratoryatalltimes.Whenyourteacherisshowingyoulabequipment,listentowhatheistellingyou,becausesomeoftheequipmentcanbedangerous.Beefamiliarwithyourlabassignment(任务)beforeyoustartdoingit.Thismeansreadingeverythingtheteacherhaswrittendownandaskingquestionsifyoudon'tunderstandaninstru

3、ctionoraterm.Donottrytoworkalone.Ifyourpartnerisabsent,letyourteacherknowsoshecanassignanotherstudenttoworkwithyou.Anddon'tdoanyotherexperimentsotherthanwhatyouhavebeenassigned.Wearyourlabapron(围裙)andsafetygoggles(护目镜)wheneveryouareworkingonalabassignment.Onlabdays,wearoldclothing

4、thatyouwon'tmindgettingdamaged.Makesurethisclothingcoversasmuchofyourskinaspossible.Keepyourhandsawayfromyourskin,face,eyesandmouthwhenyouareworkingwithdangerouschemicals.Youwillbeworkingwithfireinthelabwithanalcohollamp.Usegloveswhenhandlinghotlabequipment.Ifyouhavelonghair,pulli

5、tbackinaponytail(马尾辫)androlluplongsleeves.Don'tputpaper,chemicals,labequipmentoranypartofyourbodyintheflame.Whenyouuseasharpinstrument,treatitwithcare.Donotpointitatyourselforanyoneofyourfellowclassmatesduringtheexperiment.语篇解读：在实验室做实验很有趣，但也处处存在危险。因此，遵守实验室的安全规则是很有必要的。1．Ifyoudon'tf

6、ollowthesafetyrules,youwillprobably________.A．belaughedat　　　　　　B．loseyourlifeC．hurtyourselfD．failintheexperiment解析：选C　细节理解题。整篇文章都在告诉我们，如果不遵守安全规则，就有可能受伤。2．Theunderlinedword“observe”inParagraph1means“________”．A．obeyB．watchC．noticeD．report解析：选A　词义猜测题。根据第一段中的“ifyoudon'twanttohurtyour

7、selforyourlabpartner”可推断出observe在句中的意思是“遵守”。如果你不想伤害自己或同伴，一定要严格遵守安全规则。3．Havinglonghaircanbedangerouswhenyou________.A．rolluplongsleevesB．useanalcohollampC．useasharpinstrumentD．workwithdangerouschemicals解析：选B　推理判断题。第五段主要讲的是在实验室用酒精灯时要注意的事项。由此可推断出，长头发在使用酒精灯时可能有危险。4．What'sthebesttitlef

8、orthepassage?A．Waystodoexperiment