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
职业资格
Coasts mark the area where dry land meets oceans or other large bodies of water. They are one of the most active environments fo
Coasts mark the area where dry land meets oceans or other large bodies of water. They are one of the most active environments fo
admin
2015-05-17
53
问题
Coasts mark the area where dry land meets oceans or other large bodies of water. They are one of the most active environments found on Earth. The coastal landscape is ever-changing. It reflects the conflicting processes of erosion and deposition. It is a landscape that is affected by the interactions of the Earth, the Moon, and the Sun.
Coasts are among the most beautiful and inspiring landscapes on the planet, whether they are scenes of torrential storms or serene calm. Throughout recorded history, humans have sought to live on or near coasts. Although coasts account for only 10 percent of Earth’s land surface, they serve as home to two thirds of the world’ s human population.
Coasts and shore, coastline and shoreline, are commonly used in place of each other. Technically, they are different areas along a coastal landscape. The line that marks the boundary between water and land is the shoreline. It constantly
fluctuates
because of the regular action of waves and tides. The shore is that strip of ground bordering a body of water that is alternately covered or exposed by waves or tides. The boundaries of the shore are marked by the shoreline at its farthest seaward(low tide)and farthest landward(high tide).
Tide is the periodic rising and falling of water in oceans and other large bodies of water in response to the gravitational attraction of the Moon and the Sun upon Earth. Although the Sun is larger than the Moon, the Moon is closer to Earth and, therefore, its gravitational force is approximately 2.2 times greater. The gravitational pull of the Moon creates two types of tides: high and low. A tidal bulge occurs in the oceans on the side of Earth nearest the Moon, at the same time, a second tidal bulge occurs on the opposite side of Earth. This second bulge forms because the force of the Moon’s gravity pulls the solid body of Earth slightly away from the water on Earth’s far side. These bugles are high tides. The areas between the tidal bulges experience low tide.
As Earth rotates, the tides move over its surface. It takes approximately 24 hours and 50 minutes for a given point on Earth to make a complete cycle relative to the Moon, and two lunar tidal cycles occur during this time. Thus, the average time between high tides is 12 hours and 25 minutes. This is a generalized explanation of tides. They do not move evenly and predictably over Earth’s surface. Variations in the depth of the oceans and the distribution of landmasses combine with other factors to produce highly complex tidal behavior.
The coast and coastline begin where the shore ends at its high tide mark(farthest landward). The line between the coast and the shore at high tide is the coastline. The coast extends landward from the coastline to the first major change in terrain features, which may be miles inland. This could be a highland or a forest or some other type of terrain. Sometimes, the change between the coast and the adjacent terrain is not so distinct.
The underlined word "fluctuate" in Paragraph 3 is closest in meaning to______.
选项
A、forecast
B、alter
C、stable
D、strike
答案
B
解析
该词所在句子表达的意思为“它受海浪和潮汐作用而经常——”。forecast意为“预报,预测”,alter意为“改变,更改”,stable意为“使稳定,使牢固”,strike意为“打,撞击”。其中最能使句子表述合理的是B项。
转载请注明原文地址:https://jikaoti.com/ti/D9G9FFFM
本试题收录于:
英语学科知识与教学能力题库教师资格分类
0
英语学科知识与教学能力
教师资格
相关试题推荐
以下是某教师制订的活动实践学习计划:进行“人们心中的历史口述资料的采集实践”的探究活动。例如抗日战争,1931年,侵华日军发动九一八事变后,完全侵占中国东北,并成立满洲国,此后陆续在华北、上海等地挑起战争冲突。抗日战争期间,受日本迫害的地区涵盖我国大部分
Whichofthefollowingassumptionsaboutvocabularylearningcontradictsthemodernlanguageteachingtheories?
MoveoverMethuselah.FuturegenerationscouldbelivingwellintotheirsecondcenturyandstilldoingSudoku,iflifeexpectan
Whatwritingapproachdoesthefollowingexemplify?Theteacherasksthestudentstoworkingroupstoread,investigate,andsea
Plantsandanimalsthathavebeenstudiedcarefullyseemtohavebuilt-inclocks.Thesebiologicalclocks,astheyarecalled,u
Whatdothefollowingsentencespractice?PeterandIwenttothecinemayesterday.PeterandIwenttothecinemayesterday.Pe
Whichofthefollowingistheschool’smissionandcharacteristicofthecourse?
Thishotel______$60forasingleroomwithbath.
随机试题
方程y"—7y’+6y=sinx的待定特解形式为__________.
项目后评价中,项目可持续性分析的要素包括()等。
下列网络计划参数中,以计划工期作为约束条件的有()。
下列各项中,属于国家统一的会计制度的有( )。
在一项入户抽样调查中,先随机抽取居委会,然后对被抽中居委会的所有住户进行调查。这种抽样方法是()。
()反映单项式离散型变量数列。
阅读下面的材料,完成下列问题。欧阳修《醉翁亭记》原文环滁皆山也。其西南诸峰,林壑尤美,望之蔚然而深秀者,琅琊也。山行六七里,渐闻水声潺潺而泻出于两峰之间者,酿泉也。峰回路转,有亭翼然临于泉上者,醉翁亭也。作亭者谁?山之僧智仙也。名之者谁
师德修养具有历史继承性特点,首先需要教师()。
如果某种植物器官呼吸时的氧气吸收量大于二氧化碳释放量,该器官最可能是()。
随着网络时代到来,低头玩手机的老年人越来越多,甚至成了“网瘾老人”。对于“网瘾老人”这一现象,你怎么看?
最新回复
(
0
)