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
Seafood could be going off a lot of menus as the world warms. More than half of a group of fish【C1】______ for the marine food we
Seafood could be going off a lot of menus as the world warms. More than half of a group of fish【C1】______ for the marine food we
admin
2010-06-26
76
问题
Seafood could be going off a lot of menus as the world warms. More than half of a group of fish【C1】______ for the marine food web might die if, as 【C2】______, global warming reduces the amount of oxygen【C3】______ in some critical areas of the ocean—including some of our richest fisheries.
The prediction【C4】______a unique set of records that goes back to 1951. California has regularly【C5】______ its baby fish to support the sardine fishery. "There is almost no other dataset going back so far that【C6】______every kind of fish," says Tony Koslow of the Scripps Institution of Oceanography in La Jolla, California, who heads the survey. The survey records also include information 【C7】______ water temperature, the 【C8】______proportion of salt in a solution and the dissolved oxygen content.
Koslow’s team studied records of 86 fish species found【C9】______ in the samples and discovered that the abundance of 27 of them【C10】______ strongly with the amount of oxygen 200 to 400 metres down; a 20 percent drop in oxygen meant a 63 percent drop in the fish. There have been several【C11】______of low oxygen during the period【C12】______, mainly in the 1950s and since 1984. Global climate models predict that 20 to 40 percent of the oxygen at these depths will disappear over the next century 【C13】______ wanning, says Koslow— mainly because these waters get oxygen by mixing with【C14】______ waters. Warmer, lighter surface waters are less likely to mix with the colder, denser waters【C15】______.
Of the 27 species most【C16】______ by low oxygen, says Koslow, 24 were fish that spend the daytime in deep, dark waters below 200 metres to【C17】______ predators that hunt by【C18】______. There are 10 billion tonnes of fish globally—10 times the annual global commercial【C19】______—and they are a vital food for other fish and【C20】______ birds and mammals.
【C20】
选项
A、oceanic
B、seaside
C、ocean
D、marine
答案
D
解析
形容词辨析题。[D]marine“海生的,海产的”可修饰birds和mammals,表示“海鸟及海洋哺乳动物”,故答案为[D]。ocean和oceanic指生活在海洋中的动物,不能修饰birds,故排除;[B]seaside“海边的”,意思过于局限,故排除。
转载请注明原文地址:https://kaotiyun.com/show/C21K777K
0
专业英语四级
相关试题推荐
Themountain-climberstookevery______tominimizethedangersoftheirtrip.
NorthKoreadidnotreleaseitsdenouncementagainstthejointU.S.-SouthKoreamaneuvers______.
Fromthehealthpointofviewwearelivinginamarvelousage.Weareimmunizedfrombirthagainstmanyofthemostdangerousd
Fromthehealthpointofviewwearelivinginamarvelousage.Weareimmunizedfrombirthagainstmanyofthemostdangerousd
AjuryhasfoundformerFrenchofficialMauriceMapontguiltyofcrimesagainsthumanityfor______.
Seafoodcouldbegoingoffalotofmenusastheworldwarms.Morethanhalfofagroupoffish【C1】______forthemarinefoodwe
Seafoodcouldbegoingoffalotofmenusastheworldwarms.Morethanhalfofagroupoffish【C1】______forthemarinefoodwe
Seafoodcouldbegoingoffalotofmenusastheworldwarms.Morethanhalfofagroupoffish【C1】______forthemarinefoodwe
Seafoodcouldbegoingoffalotofmenusastheworldwarms.Morethanhalfofagroupoffish【C1】______forthemarinefoodwe
随机试题
政策方案所依据的法律基础可用什么表示?()
驾驶机动车通过简易桥梁前要下车进行观察。
用中线法进行洞内测量的隧道,曲线部分不应小于( )m。
银行在制作市场定位图时,可选择的维度可以是()。
收集客户信息是银行提供理财顾问服务的第一步,下列关于收集客户个人信息的方法,不包括()。
2×18年1月1日,甲公司初次购买增值税税控系统专用设备,取得的增值税专用发票注明的价款为300万元,增值税额为39万元。甲公司将购买的增值税税控系统专用设备作为固定资产核算和管理。当年,甲公司计提增值税税控系统专用设备折旧80万元,发生技术维护费50万元
维生素B1可作为辅酶参与糖的代谢,并有保护神经系统的作用。该物质的结构式如图3所示。以下关于维生素B1的说法正确的是()。
2017年1月,教育部组织历史专家进行了认真研究,对教材修改工作进行了全面部署。教材修改要求将“8年抗战”一律改为“()年抗战”。
孩子出生后的第一年在托儿所度过,会引发孩子的紧张不安。在我们的研究中,有464名12~13岁的儿童接受了特异情景测试法的测验,该项测验意在测试儿童1岁时的状况与对母亲的依附心理之间的关系。其结果:有41.5%曾在托儿所看护的儿童和25.7%曾在家看护的儿童
Whichofthefollowingwordsbestdescribesthetoneofthearticle?Theword"avenue"(paragraph4,line1)probablymeans____
最新回复
(
0
)