首页
登录
职称英语
Seafood could be going off a lot of menus as the world warms. More than half
Seafood could be going off a lot of menus as the world warms. More than half
游客
2023-11-17
42
管理
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. [br] 【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://tihaiku.com/zcyy/3196102.html
相关试题推荐
Moreandmoreoftheworld’ssupplyofseafoodiscomingfromfarms.Altho
Moreandmoreoftheworld’ssupplyofseafoodiscomingfromfarms.Altho
Moreandmoreoftheworld’ssupplyofseafoodiscomingfromfarms.Altho
Moreandmoreoftheworld’ssupplyofseafoodiscomingfromfarms.Altho
Seafoodcouldbegoingoffalotofmenusastheworldwarms.Morethanhalf
Seafoodcouldbegoingoffalotofmenusastheworldwarms.Morethanhalf
Seafoodcouldbegoingoffalotofmenusastheworldwarms.Morethanhalf
Seafoodcouldbegoingoffalotofmenusastheworldwarms.Morethanhalf
Seafoodcouldbegoingoffalotofmenusastheworldwarms.Morethanhalf
Seafoodcouldbegoingoffalotofmenusastheworldwarms.Morethanhalf
随机试题
Specialsoftwarehasbeenusedtoenablepassengerstocallfortaxiatalowpr
KarlWilhelmRontgen【B1】______peoplewiththefirstx-raysin1895;thiswas
OntheInternet,adsarearealproblem.They’reaproblemforus,thepeople
UniversitiesBranchOutA)Asneverbeforeintheirlong
竣工决算审计是对项目竣工决算的()进行评价。A.真实性 B.时效性 C
脚手架底部的构造要求是()。A.每根立杆底端应设底座或垫板,且应设纵向、横向扫
促使卵泡生长发育成熟的是A.绒毛膜促性腺激素(hCG) B.绝经期促性腺激素(
有关传染病流行的三个基本环节,错误的是A.传染源、传播途径和易感人群是传染病流行
下列关于弹性的表达中,正确的有( )。Ⅰ需求价格弹性是需求量变动对
以下正确的是()。A刚体惯性力系主矢与简化中心有关 B刚体惯性力系主矢与
最新回复
(
0
)