首页
登录
职称英语
What is the main idea of this passage? [br] [originaltext] About one million
What is the main idea of this passage? [br] [originaltext] About one million
游客
2023-11-07
8
管理
问题
What is the main idea of this passage? [br]
About one million years ago, the Ice Age began. The Ice Age was a long period of time in which four great glaciers pushed southward to cover almost all the upper half of North America, and then melted away. Each glacier was a thick sheet of ice and snow that spread out from a centre near what is now Hudson Bay in Canada. The winters were long, and the cool summers were too short to melt much of the ice and snow. The ever-growing sheet built up to a thickness of two miles at its centre. As all glaciers do, these great glaciers slid. They pushed down giant trees in their paths and scraped the earth bare of soil. Many animals moved farther south to escape. Others stayed and were destroyed. When winters of little snow came, the summer suns cut into the edges of the ice sheets. As the glaciers melted, rocks, soil and other things that had mixed with the ice and snow were left. New hills, lakes and rivers were formed. The last of the great glaciers began its melting about 11,000 years ago. Its melting formed the Great Lakes. These lakes are today a little changed from their early sizes and shapes. The largest of the North American river systems was also influenced by the glaciers. This is the Mississippi-Missouri-Ohio system. These rivers were miles wide at first. Through the years they settled into their present channels.
选项
A、Great glaciers are very destructive.
B、All glaciers move southward.
C、The Mississippi-Missouri-Ohio system is larger than it was before the Ice Age.
D、The Great Lakes are now smaller than they were before the Ice Age.
答案
A
解析
细节题。文中说到当那些巨大的冰川滑动过程中会推倒挡住前进道路的大树,并带走地面上的泥土,故A项是正确的。
转载请注明原文地址:https://tihaiku.com/zcyy/3166690.html
相关试题推荐
Thoseconvictedofracismwillbe[originaltext]Finally,theauthoritiesin
Australia’snewPrimeMinisterKevinRuddhasopposed[originaltext]Australi
Whatisthepassagemainlyabout?[br][originaltext]Settlersoriginallyca
Whowerethefirstinsurancecontractsdesignedtoprotect?[br][originaltext]
Whowerethefirstinsurancecontractsdesignedtoprotect?[originaltext]It
What’stheconversationmainlyabout?[br][originaltext]W:Hi,Bill.Youweren
Whatdidthewomanthinkatfirst?[br][originaltext]W:Ihadareallystrange
Whatdidthewomanthinkatfirst?[originaltext]W:Ihadareallystrangeexper
Themerchantspacecraftismeantto[br][originaltext]It’s60feetlong,m
Themerchantspacecraftismeantto[originaltext]It’s60feetlong,madeof
随机试题
[originaltext]M:Well,inanidealworld,Iguesswewouldallgetalongwitho
为筹集生产经营所需资金而发生的费用称为()。A.借入资本 B.投入资本 C.
设观测1次的中误差为mx,重复观察n次所得平均值的中误差是( )。
某有限责任公司董事会由11名董事组成。2010年8月,董事长王某召集并主持召开董
商业银行()履行内部控制的监督职能。A.内部审计部门 B.监事会 C.高级
A.①②⑤,③④⑥ B.①③⑥,②④⑤ C.①③④,②⑤⑥
行政诉讼与刑事诉讼存在的关系有:()A.先后关系 B.参照关系 C.排
A.圆形图 B.直条图 C.散点图 D.直方图 E.线图表示某地1995
王某2021年5月与单位解除劳动关系,取得了一次性补偿27万元,已知当地上年职工
在yoz正交坐标系中,设图形对y、z轴的惯性矩分别为Iy和Iz,则图形对坐标原点
最新回复
(
0
)