英语 Unit 21 Human Biology SectionⅠWarm up Lesson 1 Super Athletes课件 北师大版选修7 课件VIP专享VIP免费

Unit21HumanBiology晨读晚诵【文章导语】Somepeoplethinkwomen’sbrainaresmallerthatmen’s.Doesthatmeanthatmenaremoreintelligentthanwomen?Isthattrue?晨读晚诵Didyouknowthatwomen’sbrainsaresmallerthanmen’s?Theaveragewomen’sbrainweighs10%lessthanmen’s.Sinceresearchhasshownthatthebiggerthebrain,thecleverertheanimal,menmustbemoreintelligentthanwomen.Right?Wrong.Menandwomenalwaysscoresimilarlyonintelligencetests,despitethedifferenceinbrainsize.Why?Afteryearsofstudy,researchershaveconcludedthatit’swhat’sinsidethatmatters,notjustthesizeofthebrain.1Thebrainconsistsof“greymatter”and“whitematter”.Whilemenhavemoreofthelatter,theamountof“thinking”brainisalmostexactlythesameinbothsexes.晨读晚诵Ithasbeensuggestedthatsmallerbrainappearstoworkfaster,perhapsbecausethetwosidesofthebrainarebetterconnectedinwomen.Thismeansthatlittlegirlstendtolearntospeakearlier,andthatwomencanunderstandsortsofinformationfromdifferentsourcesatthesametime.2Thereareotherimportantdifferencesbetweentwosexes.Aswhitematteristhekeytospatial(空间的)tasks,menknowbetterwherethingsareinrelationtootherthings.晨读晚诵Thesebraindifferencesalsoexplainthefactthatmorementakeupjobsthatrequiregoodspatialskills,whilemorewomenspeechskills.Itmayallgobacktoourancestors,amongwhomwomenneededspeechskillstotakecareoftheirbabiesandmenneededspatialskillstohunt,accordingtooneresearch.Ifallthisdisappointsyou,itshouldn’t.“Thebrainchangesthroughoutourlivesaccordingtowhatwedowithit,”saysabiologist.晨读晚诵译文你知道女性的大脑比男性的小吗?女性大脑的平均重量比男性少10%。因为有研究已经表明大脑越大就越聪明,所以男性一定比女性聪明。对不对?错。尽管脑的容量不一样,男性和女性在智力测试上有相似的得分。为什么呢?经过多年的研究,研究人员得出结论,重要的不仅仅是脑的大小而是构成。大脑由灰质和白质组成。虽然男性的灰质多一些,但是大脑中用来思考的部分在两种性别中几乎相同。有人认为容量小的大脑运行更快,也许是因为在女性中大脑的两部分联系更紧密。这意味着小女孩往往学说话快,女性更容易同时理解来自不同渠道的各种信息。晨读晚诵在两种性别间还有一个重要的不同。因为白质是解决空间任务的关键,因此男性对于事物间的相对位置了解得更好。这些大脑的不同也说明了这样一个事实:从事需要空间技巧的工作的男性多,而语言技巧的女性多。一项研究表明,这要追溯到我们的祖先,女性需要语言技巧来照顾婴儿而男性需要空间技巧去打猎。如果这样的研究结果让你失望,没必要。“大脑一生都在变化,这取决于我们对它做什么。”一位生物家说。晨读晚诵典句欣赏1.Afteryearsofstudy,researchershaveconcludedthatit’swhat’sinsidethatmatters,notjustthesizeofthebrain.经过多年的研究,研究人员得出结论,重要的不仅仅是脑的大小而是构成。2.Thismeansthatlittlegirlstendtolearntospeakearlier,andthatwomencanunderstandsortsofinformationfromdifferentsourcesatthesametime.这意味着小女孩往往学说话快,女性更容易同时理解来自不同渠道的各种信息。晨读晚诵理解诱思1.Whichofthefollowingdoyouagreewithaccordingtothepassage?A.Menhaveweakerspatialabilities.B.Morewomentakeupjobsrequiringspeechskills.C.Womenpreferdoingmanythingsatatime.D.Ourancestorsneededmorespatialskills.2.Whatisthewriter’sattitudetowardswritingthispassage?A.Defensive.B.Persuasive.C.Supportive.D.Objective.3.Doesthefactthatwomen’sbrainaresmallerthanmen’smeanthatmenaremoreintelligentthanwomen?BDNo,itdoesn’t.SectionⅠWarm-up&Lesson1SuperAthletes一二三四五六七八Pre-reading一、词义匹配AB1.atallcostsa.mustbedonebecauseofalaworarule2.intervalb.themostcentralandimportantofsth.3.pumpc.weakandd...