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
Famed for their high-elevation forests, the Appalachian Mountains sweep south from Quebec to Alabama. Highest in New England and
Famed for their high-elevation forests, the Appalachian Mountains sweep south from Quebec to Alabama. Highest in New England and
admin
2014-02-22
37
问题
Famed for their high-elevation forests, the Appalachian Mountains sweep south from Quebec to Alabama. Highest in New England and North Carolina, this broad system covers more than 1, 200 miles to form the rocky backbone of the eastern United States.
The Blue Ridge Mountains form a substantial part, 615 miles, of the far-reaching Appalachians. They begin as a narrow, low ridge in Pennsylvania, then slowly spread and rise until they reach the height of 5, 938 feet at majestic Grandfather Mountain in North Carolina. The Blue Ridge technically includes among its major spurs the Great Smoky Mountains and the Black Mountains; Mount Mitchell, in the latter range, is at 6, 684 feet the highest peak east of the Mississippi River. Like the rest of the Appalachians, these mountains were once substantially higher and bolder. Their uplift was completed some 289 million years ago, and they have been drastically eroded ever since. At one time, immense continental glaciers covered the land as far south as Pennsylvania. Although they did not spread over the Blue Ridge, plants and animals far beyond their reach became adapted to the cold. When the climate warmed and the ice melted, the cold-adapted species retreated northward, surviving in the south only at higher, cooler elevations.
Red Spruces and Fraser firs are remnants of the Ice Age, thriving in the higher elevations of the Blue Ridge; and local belches, birches, and red oaks are typical of forests farther to the north. Sharing the high peaks is another distinctive plant community. This is the "bald" — a treeless area covered with grass, or more commonly, with broad-leaved shrubs. Often large and vigorous, the latter include huckleberries, mountain laurel, and most especially, rhododendron, an evergreen shrub that blossoms in June and creates some of the most spectacular wild gardens on Earth.
Where in the passage does the author mention what has happened to the development of the mountains since they reached their highest point?
选项
A、The second sentence of Paragraph One.
B、The latter half of the second paragraph.
C、The first two sentences of Paragraph Two.
D、The whole Paragraph Two.
答案
B
解析
细节事实题。根据题干关键词the mountains…reached their highest point与原文第二段第五句中的their uplift was completed对应,据此定位答案,这句话其实跟问题的意思是一样的,就是说,这山的上升已经完成了,也就是达到顶峰了,从那以后,他们就开始被剧烈地侵蚀了。故答案为B。
转载请注明原文地址:https://jikaoti.com/ti/yS6YFFFM
0
考博英语
相关试题推荐
Whatdoconsumersreallywant?That’saquestionmarketresearcherswouldlovetoanswer.Butsincepeopledon’talwayssaywhat
Whatdoconsumersreallywant?That’saquestionmarketresearcherswouldlovetoanswer.Butsincepeopledon’talwayssaywhat
Consumersandproducersobviouslymakedecisionsthatmoldtheeconomy,butthereisathirdmajor【C1】______toconsidertherole
Consumersandproducersobviouslymakedecisionsthatmoldtheeconomy,butthereisathirdmajor【C1】______toconsidertherole
Consumersandproducersobviouslymakedecisionsthatmoldtheeconomy,butthereisathirdmajor【C1】______toconsidertherole
Consumersandproducersobviouslymakedecisionsthatmoldtheeconomy,butthereisathirdmajor【C1】______toconsidertherole
InEngland,alongastretchofthenorth-eastcoastwhichgentlycurvesfromNorthumberlandtothemouthoftheriverTees,ther
InEngland,alongastretchofthenorth-eastcoastwhichgentlycurvesfromNorthumberlandtothemouthoftheriverTees,ther
(1)TheChinese,fromthehighesttothelowest,haveanimperturbablequietdignity,whichisusuallynotdestroyedevenbyaEu
随机试题
这个标志的含义是表示车辆会车时,对方车辆应停车让行。
—Ifeltrathertriedafterclimbingthemountain.—______
外科ICU病人多数来自
在装配式钢筋混凝土单层工业厂房结构吊装中得到广泛使用的是(),其操作灵活、使用方便,起重杆可以分节接长。
集装箱最早用于水上运输,是运输史上一大技术革命。()
甲公司拟在厂区内建造—幢新厂房,有关资料如下:(1)2011年1月1日向银行专门借款5000万元.期限为3年,年利率为6%,每年1月1日付息。(2)除专门借款外,公司只有两项—般借款。分别为公司于2010年12月1日借人的长期借款1000万元,期限为5
利用电磁波的绕射现象,()可以实现绕地球表面的绕射传播。
WhatisthemajorquestionpeoplehavebeenaskingabouttheSemcoexperiment?
A、JapanesestudentsstudymuchharderthanColumbianstudents.B、ColumbianstudentsscorehigherthanJapanesestudentsinmath.
A、Gotothelibrary.B、Meetthewoman.C、SeeProf.Smith.D、Haveadrinkinthebar.C行动计划题。此题考查动作的先后顺序。男士说下课后要先去见Prof.Smith.10点
最新回复
(
0
)