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
2023-11-02
60
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、are two miles thick.
B、form frozen lakes.
C、are a million years old.
D、move and slide.
答案
D
解析
细节题。文章讲到所有冰川都是滑动的,故D项正确。
转载请注明原文地址:https://tihaiku.com/zcyy/3150644.html
相关试题推荐
Whatisthenewsitemmainlytalkingabout?[br][originaltext]TheUnitedN
Whatisthenewsitemmainlytalkingabout?[br][originaltext]TheUnitedN
HowmanygoldminerstookpartinthestrikeinSouthAfrica?[originaltext]
HowmanyvehicleswillberecalledbyToyota?[originaltext]Drivingalatem
Whyarethebeescalled"AfricanizedHoneyBees"?[br][originaltext]These
Whyarethebeescalled"AfricanizedHoneyBees"?[br][originaltext]These
Whyarethebeescalled"AfricanizedHoneyBees"?[originaltext]Theseareth
Wecaninferfromthespeakerthat______.[br][originaltext]Today,Iwant
Wecaninferfromthespeakerthat______.[originaltext]Today,Iwanttotal
Whatisthepurposeofthisconversation?[br][originaltext]M:Hello.Ineedt
随机试题
教师被人们称为“园丁”、“人类灵魂的工程师”,是受到全社会尊重的一种职业。每年的10月5日为世界教师日。【T1】该节日旨在赞扬和感谢全世界教师为教育事业
PartⅡReadingComprehension(SkimmingandScanning)Directions:Inthispart,y
Kitchendutiesmayhavetraditionallybeenviewedaswomen’swork,butnota
水基型灭火器出厂期满3年首次维修,首次维修以后每满2年维修。
“长期以来,预算草案编制过于简单,外行看不懂、内行说不清;代表没有办法审议。如何
医生在器官移植问题上的道德责任,错误的是()A.对活体的捐献,要保证供者的
是否要求权利与义务的对等表现了法律与道德在( )的不同。A.表现形式 B.内
共用题干 Hitchhiking(搭车旅游)WhenIwasinmy
1982年,美国堪萨斯期货交易所开发了价值线综合指数期货合约,使()也成为期货
张某3月1日向银行申请了一张贷记卡,6月1日取现2000元,
最新回复
(
0
)