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
A、Mankind’s economic development. B、Hunters and other animals. C、Climate change and air pollution. D、The length of migration pat
A、Mankind’s economic development. B、Hunters and other animals. C、Climate change and air pollution. D、The length of migration pat
admin
2019-04-22
66
问题
Scientists say a huge percentage of bird species are in danger because their habitats, or homelands, are disappearing. Traditional migration paths take birds through countries that are not protecting locations to stop, rest and feed. The scientists studied the migration, or flight paths, Of almost 1,500 species. They decided that 91 percent of them passed through dangerous areas. The major danger for migratory birds is development. Building and paving has covered over nature where birds stop and feed as they move from one part of the world to another. For example, a bird migrates from its breeding grounds in the Arctic. It flies all the way to the southern hemisphere in Australia and New Zealand. Along the way, the small birds stop at Yellow Sea coast in China, North Korea and South Korea. One of the scientists who worked on the study says "many of these critical sites have been lost owing to urban, industrial and agricultural expansion."
The problem, according to investigators, is that many of these small birds die along their migration because they don’t have a safe place to eat and rest There is no place to restore their energy for the next leg of their journey. "They simply perish along the way," says one of the scientists. Countries in North Africa, Central Asia and those along the coasts of East Asia are having the most difficult time conserving land. The scientists say these countries do not have enough areas that are safe for birds. In addition, many of the reserves do not overlap enough with the paths of migrating birds. One species that is now extinct is the Eskimo bird. "Our world gets poorer every time we lose a species," one of the scientists says. The researchers say countries need to work together and come up with safe stopover areas for birds that pass through their boundaries. For example, one country might have preserved safe zones for migrating birds. But a neighbor country might not. A bird might perish. One scientist who is not involved in the report tells the Los Angeles Times that while some habitats are changing, more work can be done to make urban areas safe for birds.[22]He says small changes—like planting more native plants or keeping cats out of areas birds would be likely to use—could make a big difference.
19. What threatens migratory birds most?
20. What does the scientist say about the critical sites?
21. What do countries have to do to protect birds?
22. What can be done to make urban areas safe for birds?
选项
A、Mankind’s economic development.
B、Hunters and other animals.
C、Climate change and air pollution.
D、The length of migration path.
答案
A
解析
录音中明确指出,对候鸟的最主要威胁(major danger)是发展(development),下面具体提到“发展”是指高楼大厦和道路的建设,A项所说的“经济发展”符合录音所述。B项“猎人和其他动物”和C项“气候变化和空气污染”都未在录音中提及。D项“迁徙的距离”不是构成威胁的原因,只是因为鸟类在迂徙过程中找不到停留点才对它们造成威胁。
转载请注明原文地址:https://kaotiyun.com/show/h2X7777K
0
大学英语六级
相关试题推荐
A、Theyareindulgedinthevirtualworld.B、Theyspendlittletimeontheirschoolwork.C、TheytakeadvantageoftheInternetto
HowtoKeepYourNewYear’sResolutions[A]AbouthalfofallAmericanadultssaytheyareatleastsomewhatlikelytomakeaNe
A、Ifshechangesclasses.B、Ifthebooksareused.C、Ifshewantstosellthem.D、Ifthebooksareneededbyothers.A男士说如果女士改变课
A、Administrativenews.B、Generalsocialconcerns.C、Financialnews.D、Localnews.C男士说,他喜欢写文章,并且想根据自己所知的商业知识撰写金融新闻。选C。
A、Theyarelife-threateningdiseases.B、Theyareoverprescribedantibiotics.C、Theyarenewspeciesofbiginsects.D、Theyarea
Throughouthistorymanhasobservedsuchnaturalcyclesastherisingandsettingofthesun,theebbandflowoftheoceantide
A、Gettinghelpfromelectroniccigarettes.B、Usingmedicineornicotinepatches.C、Keepingawayfrompressureandanxiety.D、Usi
Signs:theMostUsefulThingWePayNoAttentionto[A]Signage—thekindweseeoncitystreets,inairports,onhighways,inho
A、Callsomebodyforhelp.B、Stayawayfromyourhouse.C、Rechargeyourcellphone.D、Turnofftheappliancesandelectronics.D短
A、Theyhavebeencooperatingforacoupleofyears.B、Theyareabouttosignthefirstcontractbetweenthem.C、Theyhavebeenl
随机试题
风湿病属于哪种类型的炎症
鲁迅的《风波》在人物描写方面的特点是()
下述哪种检查对确诊心包积液最有帮助
A、上焦火盛引起的暴发火眼等症B、肝肾阴虚所致的目涩畏光等症C、外感风热所致的暴发火眼等症D、肝胃火盛所致的目赤肿痛等症E、血瘀兼气阴两虚证的视网膜静脉阻塞证八宝眼药散的主治病证是
甲企业为居民企业。2017年有关收支情况如下:(1)取得产品销售收入4000万元,特许权使用费收入100万元,国债利息收入50万元,接受捐赠收入100万元。(2)业务招待费支出50万元,广告费支出500万元。(3)支付司法机关
某餐饮公司2015年6月取得餐饮收入154万元,包间服务费20万元,茶水收入25万元;直接成本支出120万元。已知服务业适用的营业税税率为5%,该公司当月应缴纳营业税税额的下列计算中,正确的是()。
甲礼花厂2017年6月发生如下业务:(1)委托乙厂加工一批焰火,甲厂提供原材料成本为37.5万元。当月乙厂将加工完毕的焰火交付甲厂,开具增值税专用发票注明收取加工费5万元。(2)将委托加工收回的焰火60%用于销售,取得不含税销售额38万元,将其余的
《合同法》第66条规定:“当事人互负债务,没有先后履行顺序的,应当同时履行。一方在对方履行之前有权拒绝其履行要求。一方在对方履行债务不符合约定时,有权拒绝其相应的履行要求。”请分析:该权利有什么效力?
ElectronicMailDuringthepastfewyears,scientistsallovertheworldhavesuddenlyfoundthemselvesproductivelyengaged
Accordingtothepassage,whenpeopledonotunderstandeachother’slanguage,theycantalkwiththehelpof______.Frenchman
最新回复
(
0
)