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
It sounds like a science fiction, but researchers say it’s a scientific fact: Microscopic organisms dubbed "killer algae" are pa
It sounds like a science fiction, but researchers say it’s a scientific fact: Microscopic organisms dubbed "killer algae" are pa
admin
2011-01-11
49
问题
It sounds like a science fiction, but researchers say it’s a scientific fact: Microscopic organisms dubbed "killer algae" are paralyzing fish with unknown toxins and then eating away at their flesh. They might be making people sick, too.
The name given to this single-cell organism, or dinoflagellate, is Pfiesteria piscimorte- literally, "fish killer. " It was discovered at North Carolina State University in 1988, but at the same time, few scientists believed in its existence, much less in its highly unusual predatory nature. But ongoing research has led to international acknowledgment of the phenomenon and, recently, research funding.
Seemingly prompted by an unknown substance secreted by fish, the aggressive creature swims into action. It sends neurotoxins into the water and air, paralyzing a fish’s nervous system, and causing it to gasp for air at the surface. Eventually the fish suffocates. The killer dinoflagellate then attaches itself to the fish and begins sucking away at its flesh. This macabre scenario may help solve several sea mysteries, such as why fishermen report seeing "fish walks" (fish trying to leave the water) and pools of dead fish with holes eaten through them.
Whether humans are affected by the dinoflagellate’s toxin remains to be seen. Researchers think it’s unlikely eating fresh fish are in danger, but anyone with frequent exposure to the creature could be in peril. Several researchers working with the algae have reported bouts of memory loss and disorientation.
To understand the killer algae further, scientists must fully characterize their toxin and determine what stimulates them to attack. They also need to know if the algae are hurting fish populations, and whether pollutants make them more likely to attack.
Which of the following does the writer explain?
选项
A、Neurotoxins.
B、Microscopic organisms.
C、Predators.
D、Fish walks.
答案
D
解析
细节题型见第三段最后一句:This macabre scenario may help solve several sea mysteries, such as why fishermen report seeing "fish walks" (fish trying to leave the water)and pools of dead fish with holes eaten through them. 括号中的内容是对 "fish walks" 的解释,因此D为答案。
转载请注明原文地址:https://kaotiyun.com/show/AJgO777K
本试题收录于:
CATTI二级笔译综合能力题库翻译专业资格(CATTI)分类
0
CATTI二级笔译综合能力
翻译专业资格(CATTI)
相关试题推荐
Anyscientistwhoisnotahypocritewilladmittheimportantpartthat______playsinthescientificdiscovery.
ThenumberofimmigrantslivingintheUSAhasrisenby16percentoverthelastfiveyears,fueledlargelybyrecentarrivalsf
ThenumberofimmigrantslivingintheUSAhasrisenby16percentoverthelastfiveyears,fueledlargelybyrecentarrivalsf
TheReputationInstitute,aconsultancy,hasrevealedtheresultsofitslatest"Reptrack"CorporateReputationSurveyVariouss
Wheneverwehearofatrafficdisaster,wefeelsympathetictothepeopletobeaffected.
Theabsenceofno-faultdivorceinEnglandandWaleslooksupdated.Peoplestayinlovelessmarriagesformanyreasons:anxiety
Objectsinagravitationalfieldexperienceaslowingdownoftime,calledtimedilation.
Aboutfiftyyearsago,plantphysiologistssetouttogrowrootsbythemselvesinsolutionsinlaboratoryflasks.Thescientists
Everythingontheearthareinincessantchange,nothingcouldremainaneverlastingstate.
ThecountyofficialshaveunveiledaplantoprovideCOVID-19hometestkitsfromresidents.
随机试题
A——airtrafficcontrolsystemJ——safetyprecautionmeasureB——armedpoliceK
请明星拍广告来宣传产品往往效果很好。这充分说明,在激发顾客购买欲望时,应()
组织的平均超声衰减最低的是
治疗非重型再障的基本方法是
案情:王某与甲公司于2004年2月签订合同.约定王某以40万元向甲公司购买一辆客车,合同签订之日起1个月内支付30万元,余款在2006年2月底前付清.并约定在王某付清全款之前该车所有权仍属甲公司。王某未经其妻同意,以自家住房(婚后购买,房产证登记所有人为王
2×17年甲公司与其子公司(乙公司)发生的有关交易或事项如下:(1)甲公司收到乙公司分派的现金股利600万元;(2)甲公司将其生产的产品出售给乙公司用于对外销售,收到价款及增值税585万元;(3)乙公司偿还上年度自甲公司购买产品的货款900万元;(
美国旧金山
现在社会上出现“办卡容易退卡难一现象,但最近南京一理发店店主,在身患癌症晚期之际。通知办卡顾客退卡。而得知此事的顾客却无一退卡,对此.谈谈你的看法。
【F1】Breathingparticulate-laden(akasmoggy)airmaybehardeningyourarteriesfasterthannormal,accordingtoresearchpublishe
ItisincongruousthatthenumberofBritishinstitutionsofferingMBAcoursesshouldhavegrownby254percentduringaperiod
最新回复
(
0
)