A.Tointroducehowimportantoceansare.B.Todiscusswhyseaanimalshaveyettobefoundout.C.Toexplainthatoceanscoveralargeareaoftheearth.D.Toshowthatwehaveonlyalittleunderstandingofoceans.(2)Whatcausedthechangeofexplorationintothedeepsea? ___A.Hightechnology.B.Unknownspecies.C.Apleasantenvironment.D.Valuableinformation...
They help control the earth’s temperature and produce half of the oxygen (O2) in the air.”可知,虽然我们有困难,但了解海洋是很重要的。此处they指代上文的seas。故选B。 (3)题详解: 细节理解题。根据“Our future depends on learning more about our oceans, and it is possible for us to ...
Earth & Planetary Science LettersLenardic A, Moresi L-N, Jellinek AM, and Manga M (2005) Continental insulation, mantle cooling, and the surface area of oceans and continents. Earth and Planetary Science Letters 234: 317-333.Continental insulation, mantle cooling, and the surface area of ...
4.Oceans cover nearly 75% of the earth's surface.(41)Based (base) on the amount of light received,the ocean can (42)be divided(divide) from its surface to its depth into three zones. Sunlit zone is the top layer,(43)which goes down about 600feet.There is enough light for photosynth...
aWorkshop Road, Industrial Area 车间路,工业区[translate] aProvost 大学学院长[translate] a:No two friendships are ever exactly alike. But all true friendships have three things in common. If you plan to keep your friendships, you must practise honesty, generosity and understand :二友谊不确切地...
ocean marine area of about 362,000,000 square kilometers (140,000,000 sq. miles), near 71 per cent of the surface of the earth. The oceans contain more than 10,000 1.300005 billion cubic 1000 meters of water, representing 97 per cent of the total volume of water on earth. Global Mar...
especially precipitation and streamflow. Hydrography entails the description and mapping of large bodies of surface water, such as lakes, inland seas, and oceans. On the other hand, groundwater hydrology centres onsubsurface waterin the saturated zone, and soil-waterphysicson that in the unsaturated...
The Subarctic Seas constitute the northern part of the thermohaline circulation, which regulates the Earth’s climate. Through the Nordic Seas, warm and saline Atlantic water is transported from the North Atlantic to the Arctic. The Nordic Seas are a sensitive area in the Arctic Ocean, where the...
WhereasSequals the surface area,crepresents the distance from the center to a pole, andarepresents the semi-axis, e represents the eccentricity. Naturally, Earth’s surface area can also be subdivided between water and land segments (aka. oceans or continental crust). ...
根据第二段Watershortageisanissuethat'sprojectedtogetworse,asclimatechangemakesdryareasevendrier.(随着气候变化使干旱地区更加干燥,缺水问题预计将变得更加严重)推知,科学家设计这种蒸汽收集系统是为了缓解水资源短缺。故选B。(2)推理判断题。根据第三段Butnaturealreadyhas a prettygooddesalinationsystem — thesuni...