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
Sand: as children we play on it and as adults we relax on it. It is something we complain about when it gets in our eye on a win
Sand: as children we play on it and as adults we relax on it. It is something we complain about when it gets in our eye on a win
admin
2018-11-19
38
问题
Sand: as children we play on it and as adults we relax on it. It is something we complain about when it gets in our eye on a windy beach, and praise when it is made into sand castles.
But we don’t often look at it. If we did, we would discover an account of a geological past and a history of sea life that goes back thousands and, in some cases, millions of years.
Sand covers not just seashores, but also ocean beds, deserts and mountains.
【B1】______And it is a major element in manufactured products too—concrete is largely sand, while glass is made of little else.
【B2】______ Well, it is larger than fine dust and smaller than shingle. In fact, according to the most generally accepted scheme of measurement, grains can be called sand if their diameter is greater than 0.06 of a millimetre and less than 0.6 of a millimetre.
Depending on its age and origin, a particular sand can consist of tiny stones or porous grains through which water can pass.
【B3】______They have come from the breaking down of rocks, or from the dead bodies of sea creatures, which collect on the bottom of the oceans, or even from volcanic eruptions.
【B4】______If it is a dazzling white, its grains may come from nearby coral, from crystalline quartz rocks or from gypsum, like the white sand of New Mexico. On Pacific Islands, jet black sands form from volcanic minerals. Other black beaches are magnetic and are mined for iron ore.
【B5】______It washes rock into streams and rivers and down to the sea, leaving behind softer materials. By the time it reaches the sea, the hardest rocks remain but everything else has been broken into tiny particles of 0.02 millimetre diameter or less. The largest pieces fall to the bottom quickly, while smaller particles float and settle only slowly in deeper water, which is why the sandy beach on the shoreline so often turns to mud further out.
Questions 61—65
Complete the passage with the following sentences. There are two extra sentences that you do not need to use.
A. These may have the shape of stars or spirals, their edges rough or smooth.
B. It is one of the most common substances on earth.
C. In addition, it has one vital function which you might never even notice.
D. Rain is an important force in the creation of beaches.
E. In the great slow cycle of the earth, sand that was once rock can turn to rock again.
F. What exactly is sand?
G. Colour is another clue to the origins of sand.
【B1】
选项
答案
B
解析
空缺处之前说沙子不仅覆盖海滩,而且还覆盖大洋底部、沙漠和高山。B项表述可以对此加以概括总结。
转载请注明原文地址:https://kaotiyun.com/show/7DNK777K
本试题收录于:
C类竞赛(非英语专业本科)题库大学生英语竞赛(NECCS)分类
0
C类竞赛(非英语专业本科)
大学生英语竞赛(NECCS)
相关试题推荐
Amanis48yearsold.Heaskstheothermanhowoldheis.Theothermananswers:"IamtwiceasoldasyouwerewhenIwasas
Americaisasocietyinwhichchildrenhavewatched【D1】______18000televisioncommercialsbythetimethattheyhavereached【D2
Thedetectivethoughttheguiltypartytobe______becauseIhadthestrongestmotive.
Theotherday,myfriendJohndrovehiscardownthestreetat______Ithoughtwasadangerousspeed,and______surprisedeveryone
______thereislittlewecandotomodifytheweather,wecanatleastknowwhatkindofweathertoexpect.
Ithoughtitwouldtakeme30minutestogettothePalaceMuseum,butI______whenItookawrongturnandittookalmostanhou
Ifyouunderstandthisconversation,youprobablyliketochatontheInternet.MillionsofInternetusersaroundtheworldare
HowwillDavidgototheinterview?
CooperationVersusCompetitionWhatiscompetition?Whatdoesitmeantocompete?Accordingtothedictionary,competition
Sinceyourteacherhas____________thetimeforatalkwithyou,youmustmakesurethatyouwillbethere.
随机试题
商务谈判中的讨价还价集中体现在()
咬肌间隙感染最常见的病灶牙是
“从一个处于私人地位的产生者身上扣除的一切,又会直接或间接地用来为处于社会成员们的这个生产者谋福利的性质”,即“取之于民,用之于民”,这是()提出的。
对于中、远地区(超过2000km)广播的短波发射台,天线发射前方1km以内,总坡度一般不应超过()。
汇总记账凭证账务处理程序是直接根据记账凭证逐笔登记总分类账的一种账务处理程序。()
海关签字,并加盖“海关验讫章”的出口报关单可作为()使用。
一般纳税人销售下列货物应当按照11%的税率征收增值税的有()。
根据下列资料,回答以下问题。国家统计局发布的数据显示,2012年7月份,社会消费品零售总额16315亿元,同比名义增长13.1%(扣除价格因素实际增长12.2%,以下除特殊说明外均为名义增长)。下列选项中,从消费形态看,2011年1—5月与
以下朝代国号名称的由来系根据封爵定国名的是()
Practiseansweringthesequestions.Whatkindofjobwouldyoumostliketohave?Whatarethemainproductsmadeinyou
最新回复
(
0
)