人民邮电出版社《科技英语》教程 unit 2 Biology课件

Unit2Biology
EnglishforScienceandTechnology
TextA--Comprehension
1.WhattruthdidDNAstudiesfindoutabouttraditionalspecies?(Line1,Para.2)
2.WhydidNowak’steamchoovenspeciesofinctslivinginthemountainstreamofcentralEurope?(Line2,Para.3)
3.Whatcouldtheevolutionarypotentialdotospeciesonceitislost?(Line1,para.7)
4.Althoughthestudyshowshowclimatechangemayleadtothelossofgeneticdiversity,whatisstillunclearaccordingtothetext?(Line1,para.9)
5.WhathashappenedandwillhappenintheMediterraneanregion?(para.11,12)
6.Whatinternationalefforthasbeenandisbeingdonetocopewiththeproblem?(para.14,15)
Glossary
hit /hɪt/ 
1.V-T Ifyou hit someoneorsomething,youdeliberatelytouchthemwithalotofforce,withyourhandoranobjectheldinyourhand.打
例:Findtheexactgripthatallowsyoutohittheballhard.
找到能让你大力击球的准确握拍方法。
2.V-T Whenonething hits another,ittouchesitwithalotofforce.猛撞
例:Thecarhadapparentlyhitatrafficsignbeforeskiddingoutofcontrol.
汽车显然在失控滑出前猛地撞到了一个交通指示牌。
3.V-T Ifabombormissile hits itstarget,itreachesit.(炸弹或导弹)击中
例:...multiple-warheadmissilesthatcouldhitmanytargetsatatime.
…可以一次击中多个目标的多弹头导弹。
4.V-T Ifsomething hits aperson,place,orthing,itaffectsthemverybadly.对…造成严重影响
例:Theplantochargemotoriststouthemotorwayisgoingtohitmehard.
向汽车驾驶员收取高速公路使用费这一方案会严重影响到我。
大约两百人在那场袭击秘鲁北部的地震中丧生。
AbouttwohundredpeoplediedintheearthquakewhichhitnorthernPeru.
complicate ['kɔmplikeit]
V-T To complicate somethingmeanstomakeitmoredifficulttounderstandordealwith.使复杂化
例:Whatcomplicatestheissueistheburdenofhistory.
使问题复杂化是历史的重负。
他说那天的事件只会使维和部队的任务复杂化。
Theday'vents,hesaid,wouldonlycomplicatethetaskofthepeacekeepingforces.
asssment [ə'smənt]
1.N-VAR An asssment isaconsiderationofsomeoneorsomethingandajudgmentaboutthem.评估
例:Thereislittleasssmentofthedamagetothenaturalenvironment.
几乎没有有关自然环境破坏的评估。
2.N-VAR An asssment oftheamountofmoneythatsomethingisworthorthatshouldbepaidisacalculationorestimateoftheamount.估算
例:Taxasssmentisallaboutcomparingvaluesofsimilarproperties.
税金估算就是比较类似房产的价值。
prerve [pri'zə:v]
1.V-T Ifyou prerve asituationorcondition,youmakesurethatitremainsasitis,anddoesnotchangeorend.维护
例:Wewilldoeverythingtoprervepeace.
我们将竭尽全力维护和平。
2.N-UNCOUNT 维护prervation
例:...theprervationofthestatusquo.
…现状的维护。
3.V-T Ifyou prerve something,youtakeactiontosaveitorprotectitfromdamageordecay.保护
例:Weneedtoprervetheforest.
我们需要保护森林。
5.V-T Ifyou prerve food,youtreatitinordertopreventitfromdecayingsothatyoucanstoreitforalongtime.保藏
例:Iliketomakepuree,usingonlyenoughsugartoprervetheplums.
我喜欢做果酱,只用足够的糖来保藏李子。
6.N-PLURAL Prerves arefoodsmadebycookingfruitwithalargeamountofsugarsothattheycanbestoredforalongtime.果酱
例:ShedecidedtomakepeachprervesforChristmasgifts.
她决定做桃子果酱作圣诞礼物。
vulnerable ['vʌlnərəbl]
1.ADJ Someonewhois vulnerable isweakandwithoutprotection,withtheresultthattheyareeasilyhurtphysicallyoremotionally.易受伤害的
例:老人是我们社会中特别容易受到伤害的成员。
Oldpeopleareparticularlyvulnerablemembersofoursociety.
2.N-VAR 脆弱vulnerability
例:Davidacceptshisownvulnerability.
戴维承认自己的脆弱。
3.ADJ Ifaperson,animal,orplantis vulnerable to adia,theyaremorelikelytogetitthanotherpeople,animals,orplants.容易患…病的
例:Peoplewithhighbloodpressureareespeciallyvulnerabletodiabetes.
血压高的人尤其容易患糖尿病。