科技英语视听说复习提纲完整版.docx
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科技英语视听说复习提纲完整版.docx
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科技英语视听说复习提纲完整版
科技英语视听说复习提纲
Lesson1
ThePrivateLifeofPlants1
1、Whatproblemsdoplantshavetofacethroughouttheirlivessoastosurvive?
(1)Fightseasons
(2)competeformates(3)invadenewterritories
2.Arefungiplants?
Whatdofungiproduce?
Fungiproducesporeswhicharesimilartoseeds.
3.Howdotheseedsofdandelionsfly?
Aspecialapparatusisneededbytheseedsofdandelionstofly.Eachseedofthedandelionisfittedwithitsownindividualparachute.
Lesson2
ThePrivateLifeofPlants2
1.Whatisthebegonia’ssecretofsurvivingonthedimforestfloor?
Thesecretofbegoniasurvivingonthedimforestfloorliesinitsleaveswhichundersidesisred.
2.Howdoleavesreducetheproblemofwaterlyingontheirsurface?
Therearefourways.
Thefirstoneisthattheleavesaretoughenoughtowithstandthepoundingofwater.
Thesecondoneisthattheleaveshavegutterstocarryawaythewater.
Thethirdoneisleaveshavepointedtipsattheendsoastodrainwaterrapidly.
Thelastoneisthatleaveshavethedensehairstokeeptheirporesfree.
3.Whatisthedramaticsolutionasensitivemimosapossessestodefenditself?
Onetouchcanmaketheleavesfold,anothertapcanmakeitfloptotheground.
Lesson3
GlobalWarming
1.Whatarethethreefactorscausingthecollisionbetweenourcivilizationandtheearth?
(1)population
(2)ourwayofthinking
(3)thescientificandtechnologicalrevolution.
2.Howtobalancetheeconomyandtheenvironment?
(Open-EndedQuestion)
3.WhatshouldwedotosolvetheclimatecrisistosecureourfutureortosaveourplanetEarth?
(Open-EndedQuestion)
Discussion1
BigFreeze
1.WhatmightbethemajorcauseoftheBigFreeze?
Themajorcausesofthebigfreezearevolcaniceruptions,globalwarmingandchangesintheoceancurrents.
2.Pleasenamethefivewaysmentionedinthestateoftheplanetthatwecareaffectinglife’sdiversityonEarth.
(1)over-harvesting
(2)theintroductionofalienspecies
(3)thedestructionofhabitats(4)islandisation(5)pollution.
Lesson4
JourneyofLife1
1.Whatisnationalselection?
Anytraitthatincreasesthepossibilityofyoungstersurvivingwillbepassedoninitsgenes.
2.Thereisanenormousvarietyoflifeontheplanet,howdidlifebegin?
Thesingle-celllivingthingsbeganat3billionyearsago.Thecellspullingtogetherlikejellyfishbeganat670millionyearsago.Theanimals’softbodiesturnedhardlikesnailsbeganataround570millionyearsago.
3.Wheredidalllifebegin,andwhy?
Allthelifebeginsinthesea.Becauseinthesea,thetemperaturehardlychangesandthewatercanprotectagainstthepullofgravityandtheburningsun.
Lesson5
JourneyofLife2
1.Whatarethegoodreasonsforlifetogetintotheair?
Therearethreereasons.
Thefirstisthatwingsprovideanimalswithextrastrikepower.
Thesecondisthatflyingisfastestandmostefficientwaytotravel.
Thelastoneisthatitallowsanimalstofindfood,exploreterritoryorescapefromdanger.
2.Whydowesaycaterpillarsaremunchingmachines?
Becausetheironlypurposeistoeatandgrow,theycanballoontoincredible2000timestheirstartingweight.
3.Whydowesaythatthepredatorsandpreyarelockedinanintenserelationship?
Whenpredatorsfindbetterwaystocatchandkill,andpreyshavetoimprovetheirself-defense.Thatistosay,neitherpredatorsnorpreyscanaffordtobeleftbehind.
Lesson6
Phobias
1.Whatisphobia?
Fearplaysavitalpartinoursurvival,whenfeargetsoutofcontrol,wecallitphobias.
2.Whatisthepercentageofpeoplewithphobias?
Tenpercentpeoplewithphobias.
3.Doweinheritspecificphobiasfromourparents?
No,wedon’t.
Discussion2
JourneytotheCenterofthePlanet
1.Howdoesaseaturtleknowitslocationandnavigateitswayaroundtheearth?
It’sbasedontheearth’smagneticfield.
2.Whatwasfoundatthebottomoftheoceanin1985bysomescientists?
Shrimpswhichcanliveinboilinghotwaterandlivewithoutsun’senergywerefoundin1985.
Lesson7
SecretofSexes
1.Whatarethedifferencesbetweenmenandwomen?
Menaremorethings-orientedwhilewomenaremorepeople-oriented.
2.Whatarethetworeasonsforthemarriagetoendindivorce?
Thefirstreasonisyouareunfaithfultoyourspouse,thesecondreasonisconstantargue.
3.Whypeoplesay“lovemakespeopleblind”?
Therewardsystemfloodswithfeelinggoodchemicals,whileanotherpartofthebrain,whichisusedforcriticalthinking,switchesoff.
Lesson8
GreatWildlifeMoments
1.Whydoredcrabsheadfortheshoretospawn?
Becausetheredcrabsareunabletoraisetheiryoungonland,sotheyhavetotrekseveralkilometerstothesea,theirancestralhome.
2.HowdoestheAuroraaustralisoccur?
TheAuroraaustralisoccurswhensubatomicparticlestravelingthroughspaceentertheEarth’smagneticfield.
3.Howcananeagleeatatortoise?
Aneaglefliestofindafavoritesite,gainitsheight,letsthetortoisego.
Lesson9
TheSunandtheMoon
1.WhyalllifeonEarthowesitsexistencetothesun?
Thesunpowerseverynaturalsystemandsustainseveryplantandanimal.WithouttheSun,theEarthwouldbeabarren,lifelessballofrock.
2.Whatisthesunmadeof?
Over90%ofthesunismadeofhydrogen.
3.Whatistheimpactofthefullmoononseacreaturesandonhumanbeings?
Intheoceanthefullmoon’sbrightlightisamatingcallforseacreatures.Mostwomengettheirmenstrualperiodatthedayoffullmoon.
Discussion3
TheHumanMind
1.Howcanyoutellaperson’ssmileafakeone?
Youjustwatchthelinesaroundhis/hereyes.
(1)movementofone’smouth
(2)musclesaroundone’seyes
AlienContact
1.IfonedayalienspeciescometoEarth,what’sthenarrator’shope?
Thenarrator’shopeisthatthey’llcomeinpeace.
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