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
专升本
Fighting Against Water For centuries Dutch engineers have been fighting a war against water. Their main enemy is the sea. A
Fighting Against Water For centuries Dutch engineers have been fighting a war against water. Their main enemy is the sea. A
admin
2017-05-31
40
问题
Fighting Against Water
For centuries Dutch engineers have been fighting a war against water. Their main enemy is the sea. A large part of the country is below sea level. In fact, Holland is also called the "Netherlands" which means "low land". Very tall and strong walls, called dykes, have built to keep out the sea. But in very rough weather the sea may suddenly burst through a dyke. Great damage can be caused by floods when this happens.
Three large rivers are also part of the problem. These rivers are the Rhine, the Maas and the Scheldt. They flow through Holland into the North Sea. They have cut many passages across the country. At low tides, the rivers flow into the sea as usual. But at high tide, the sea can flow into the rivers! This is because the land is so low.
The battles against the water never end, but they have made Holland a bigger and bigger country. In order to prevent floods, the engineers take, or reclaim land that was under water. The Dutch have been reclaiming land for seven hundred years.
Land is usually reclaimed from a passage between islands. Two dykes are built across the passage, so they block the water between them. Then the engineers dig long canals and pump the water into them. At low tide, the canals empty the water into the sea.
Because the land is so low, water from the sea and rivers can rise up through the ground. For this reason, the pumps continue working even the land has been drained(that is, when the water has been pumped away). The dykes contain gates, and through these the water is pumped out. In many parts of Holland, pumps must be working all the time. If they stopped, there will be very bad floods.
A piece of reclaimed land is called polder, and Holland has thousands of polders. Some are very large, but others are quite small. There are farms on many of the polders. Corn and other crops grow well on the drained land, and it gives good grass for cattle. Many small towns and villages stand on polders. Even Amsterdam’s great airport, Schiphol, was built on reclaimed land. This land used to be under the old Lake Haarlem.
The Holland claims land from the sea in order to______.
选项
A、prevent floods
B、make their country larger
C、make their country more beautiful
D、have more farmland
答案
A
解析
转载请注明原文地址:https://kaotiyun.com/show/xrXC777K
本试题收录于:
英语题库普高专升本分类
0
英语
普高专升本
相关试题推荐
Shoppingforclothesisnotthesameexperienceforaman【C1】______itisforawoman.Amangoesshoppingbecauseheneedssomet
Myjobasaresearchassistantisveryspecialized______,whichdemandsalotofacademicknowledge.
WomenintheUnitedStatesandmanyothercountries【C1】______inagrowingnumberofsportsandgames.ManyAmericanwomenare【C2
Atfirst,thespeakerwasreferringtotheproblemofpollutioninthecountry,buthalfwayinherspeech,shesuddenly______to
Expertsadvisethatmoreattentionshouldbegivento______ofwildlifetomaintaintheecologicalbalance.
ProfessorTaylor’stalkhasindicatedthatsciencehasaverystrong______ontheeverydaylifeofnon-scientistsaswellass
Thebigfirebrokeoutinthenight,______greatdamagetothenearbytowns.
Anewstudyshowsanastonishingnumberofpeopleareusingtheircellphonesonthejohn(盥洗室).Fromwebbrowsingandtextingto
Aresomepeoplebornclever,andothersbornstupid?Orisintelligence(智力)developedbyourenvironmentandourexperience?Stra
A:我喜欢晚上在教室里读英语。在早晨我不能学习。
随机试题
保险的职能主要体现为
A、 B、 C、 D、 C
1.5岁男婴,足月顺产,生后母乳喂养,未添加辅食,平时体质弱,常反复患“肺炎”、“气管炎”、“腹泻”等疾病,近1日呕吐2次/日,为胃内容物,查体:精神萎靡,营养差,体重5kg,前囟已闭,心肺无异常,皮肤弹性差,皮下脂肪消失,四肢肌张力低下。该患儿初步诊断是
引产在索引中的主导词查
朱某是一起决水案的犯罪嫌疑人,公安机关将案件移送人民检察院审查起诉,人民检察院为了审查案件,将朱某拘传至人民检察院接受了1日的讯问,朱某对此提出了申诉,他可以对人民检察院以何种理由提出申诉?
下列不属于基本预备费内容的是()。
证券投资基金的组合投资、分散风险的特点表现在()。
计算机网络最突出的优点是______。
ThejokesBilltoldinanefforttocheerusupdidn’tquite______.
Thecarpetsmadeinourfactoryarewell-knownfortheirnoveldesigns,elegantcolors,beautifullooksandmagnificentair.
最新回复
(
0
)