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
Towards the end of June, a unique joint expedition began in the waters near Indonesia. In an area of remarkable marine diversity
Towards the end of June, a unique joint expedition began in the waters near Indonesia. In an area of remarkable marine diversity
admin
2014-12-18
51
问题
Towards the end of June, a unique joint expedition began in the waters near Indonesia. In an area of remarkable marine diversity known as the "Coral Triangle", two vessels set sail: the American Okeanos Explorer and the Indonesian Baruna Jaya IV. Their destination was not over the horizon, but to explore the depths of the ocean.
Jane Lubchenco, administrator of America’s National Oceanic and Atmospheric Administration, says this is the first time that scientists have used a remotely operated vehicle to investigate the cold depths of Indonesia’s Sangihe Talaud region. Their remotely operated vehicle, known as Little Hercules, is working in waters as deep as 3,700 metres(2.3 miles)and as shallow as 250 metres.
By several accounts, the diversity of marine life being discovered is phenomenal. Tim Shank, of the Woods Hole Oceanographic Institution and the lead scientist on the expedition, says the team are discovering levels of large-animal diversity that rival anything found in similar habitats elsewhere on the planet.
Dr. Shank is directing the expedition from a command centre in Jakarta, the Indonesian capital. He says the team have discovered between 30 and 40 new species in the past week of diving alone.
Little Hercules is cruising over hot springs, deep-sea muds and the rocky tops of seamounts—a kind of underwater mountain that rises from the sea floor. A whole different set of corals live down here—and with them come a specialized fauna(动物群). For instance, two chirostylid crabs have been found that live their adult lives only in one particular black coral. Sea stars, crabs, shrimp and worms are found living in the limbs of these corals as birds and insects do in the branches of trees in a rainforest.
What is most intriguing is that the team are gathering evidence for the existence of a deep-ocean "Wallace Line". This is an area named after Alfred Wallace, an evolutionary biologist who noticed in the 19th century that the fauna on either side of this line were distinctly different. The line runs between Borneo and Sulawesi, and through the Lombok Strait near Bah. To the west of the line the animals are Asian and to the east of it the species are a mix of Asian and Australian.
The reason for this line is not entirely understood, says Dr. Shank, but it is thought to be related to the difficulty that species have had in crossing the deepwater under this line. Any confirmation that Wallace’s Line extends to the floor of the deep ocean itself will certainly test ideas about the evolution of the region. The mission continues until the end of August.
The marine life in the "Coral Triangle" can be best characterized as " ______."
选项
A、mysterious
B、remarkable
C、phenomenal
D、diversified
答案
D
解析
原文该句中的diversity表明“珊瑚大三角”的海洋生物品种繁多。第3段第1句也提到这一区域海洋生物的多样性不同寻常,因此,本题应选D。
转载请注明原文地址:https://kaotiyun.com/show/d0m7777K
0
大学英语六级
相关试题推荐
Populationgrowthwillmeanover100millionmorepeopleintheUnitedStatesoverthenextfourdecadeswhowillneedenergyan
ItwouldbealltooeasytosaythatFacebook’smarketmeltdowniscomingtoanend.Afterall,MarkZuckerberg’ssocialnetwork
A、Theycanemitaseriesofpulses,groans,andmoans.B、Theycancruisetheoceanatmorethan20milesanhour.C、Theycannav
A、Shespendstoomuchmoney.B、Shelikesmoneytoomuch.C、Sheenjoysgoingoutforshopping.D、Shelikestoargueaboutanythin
Apersonalizedbloodtestthatcanidentifytumor(肿瘤)DNAcouldbethefirststeptowardsalong-promisedrevolutioninthewayc
Recently,anearlydecadeoldpaperontheeconomiceffectsofhumancloningbyaFrencheconomicsprofessorhasbeengettingso
"Usuallywhenwewalkthroughtherainforestwehearasoftsoundfromallthemoistleavesandorganicdebrisontheforestfl
A、Onafarm.B、Atschool.C、Athome.D、Inafactory.C
Oneofthemostimportantsocialdevelopmentsthatmadepossibleashiftinthinkingabouttheroleofpubliceducationwasthe
随机试题
国际证券市场的全球性变化主要表现有()。
和平与发展的主要障碍是()。
【斡脱钱】浙江大学2000年中国古代史真题;西北大学2006年中国古代史真题;黑龙江大学2013年中国史真题
下列选项中不符合良好程序设计风格的是
设栈的顺序存储空间为S(1:m),初始状态为top=m+1。现经过一系列正常的入栈与退栈操作后,top=0,则该栈中的元素个数为()
CoxRadio,oneofthenation’slargestradiochains,plansto______itstieswithindependentrecordpromoterstodistanceitse
奶奶吃“鲜”,现在想起来意味深长。在那样一个遥远的乡村,奶奶的生命与大自然紧密相连,天增岁月人增寿。她以感恩的心情,真情面对土地上的每一种果实的每一次成熟。深刻领会大自然无比的恩惠,年迈的她活得谦恭执着而又鲜活。与居住在乡间的奶奶相比,现代的都市
Single-sexSchoolI.【T1】______【T1】______—Co-ed:the【T2】_____ofsexes,politicallyacceptable【T2】______II.Research—Single-
"Home,sweethome"isaphrasethatexpressesanessentialattitudeintheUnitedStates.Whethertherealityoflifeinthefa
Ihaveboughtastorybook______therearemanypictures.
最新回复
(
0
)