首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
The Earth has been stripped of up to 90% of its species five times before in the past 450 million years. Now it’s about to happe
The Earth has been stripped of up to 90% of its species five times before in the past 450 million years. Now it’s about to happe
admin
2014-12-31
32
问题
The Earth has been stripped of up to 90% of its species five times before in the past 450 million years. Now it’s about to happen again—and this time there’s no rogue asteroid(小行星)to blame. One of the first great rules of terrestrial biology is that no species is forever. The Earth has gone through five major extinction events before. The result of all of the extinctions was the same: death, a lot of it.
As increasingly accepted theories have argued—and as the Science papers show— we are now in the midst of the sixth great extinction, the unsettlingly-named Anthropocene(人类纪), or the age of the humans.
As the authors of all this loss, we are doing our nasty work in a lot of ways. Overexploitation—which is to say killing animals for food, clothing or the sheer perverse pleasure of it—plays a big role. So we get elephants slaughtered for their tusks, rhinos poached(偷猎)for their horns and tigers shot and skinned for their pelts, until oops— no more elephants, rhinos or tigers.
Habitat destruction is another big driver, particularly in rainforests. And you don’ t even have to chop or burn an ecosystem completely away to threaten its species; sometimes all it takes is cutting a few roads across it or building a few farms or homes in the wrong spots.
Then too there is global warming, which makes once-hospitable habitats too hot or dry or stormy for species adapted to different conditions. Finally, as TIME’s Bryan Walsh wrote in last week’ s cover story, there are invasive species—pests like the giant African snail, the lionfish—which hitch a ride into a new ecosystem on ships or packing material, or are brought in as pets, and then reproduce wildly, crowding out native species.
It oughtn’ t to take appealing to our self-interest to get us to quit making such a mess of what we ’re increasingly coming to learn is an exceedingly destructible world. But it’ s that very self-interest that led us to make that mess in the first place. We can either start to change our ways, or we can keep going the way we are—at least until the Anthropocene extinction claims one final species: our own.
What is the best title for this passage?
选项
A、What Causes The Great Extinction?
B、The Sixth Great Extinction Is Underway-And We’re to Blame
C、The End of the Anthropocene
D、Quit Seeking Self-interest
答案
B
解析
主旨题。文章以之前的大灭绝开头,引入人类面临的大灭绝,在介绍了造成灭绝的原因后,提出了倡议,不仅有客观,而且有对于人类前途的担忧和建议。反观这几个题目,A只强调了客观原因,C项过于含糊,D项只提到了倡议,只有B最为全面。
转载请注明原文地址:https://kaotiyun.com/show/uDq7777K
0
大学英语四级
相关试题推荐
A、Themysterystory.B、Thehiringofashopassistant.C、Thesearchforareliablewitness.D、Anunsolvedcaseofrobbery.D男士问:
Selectingamajorisoneofthetoughesttasksforacollegestudent.Studentsusuallycometocollegewithamajorin【B1】______
AaronSwartz.thebrilliantyoungsoftwareprogrammerandInternetactivistwhoinspiredaweandreverence(尊敬)fromleadingfigur
A、ShewasamemberoftheSenate.B、SheworkedinCongressfor8years.C、Shespokeforthedisadvantagedpeople.D、Sheplacedt
Holdingontothebeliefthatchildrenwillshedtheir"babyfat"astheygetoldermayallowthechildhoodobesityepidemiclas
Researchonfriendshiphasestablishedanumberoffacts,someinteresting,someevenuseful.Didyouknowthattheaveragestud
A、Walkthedog.B、Getoutforsomeexercise.C、Gotothepethospital.D、Gototheanimalshelter.D行动计划题。女士说想养狗,男士提到在动物收养所能够买到更
A、Johnhasnoexperienceatall.B、Johnhasacharmingpersonality.C、Johnwassoluckythathegotthejob.D、Thereweresoman
Peoplewhosejobsrequirethemtositforlongperiodsoftimesufferasmuchfrombackpainaspeoplewholiftalldaylong.
A、Itmayleadtosomehealthproblems.B、Itisnotaneffectivewaytodealwithanger.C、Itmayresultinsomementalproblems.
随机试题
A.左氧氟沙星B.氯霉素C.青霉素D.万古霉素E.替硝唑对胎儿及母体均无明显影响,也无致畸作用,妊娠期感染时可选用的药品是()。
与消费者市场相比,生产者市场具有的明显特征是()。(2010年单项选择第19题)
下列属于《旅游投诉暂行规定》确定的旅游投诉案件地域管辖标准的是()。
背景说明:你是宏远公司行政秘书高叶,下面是行政经理苏明需要你完成的几项工作任务。
我国季风区和非季风区的分界线是:
张某不慎遗失其手袋,手袋内有其名贵手表一只。张某在丢失手表后焦急万分,遂在遗失场所张贴数份启事,称若有人能够找到手表并送还,愿以现金5000元酬谢。后来,陈某拾得后依此启事与张某取得了联系,并要求张某支付5000元,可是张某提出,由于这个手表是名牌手表,价
甲因为盗窃罪被判处有期徒刑8年,执行5年后,又犯故意伤害罪,被判有期徒刑15年。对甲数罪并罚时,其实际执行刑期的最高限是()。
Twomaintechniqueshavebeenusedfortrainingelephants,whichwemaycallrespectivelythetoughandthegentle.Theformerm
Ourcompanypreferstohireemployeeswhoeitherhaverichexperience______amaster’sdegree.
Theevolutionofsexratioshasproduced,inmostplantsandanimalswithseparatesexes,approximatelyequalnumbersofmalesa
最新回复
(
0
)