首页
财务会计
医药卫生
金融经济
考公考编
外语考试
学历提升
职称考试
建筑工程
IT考试
其他
登录
职称考试
共用题干 第三篇Operation MigrationIf you look up at the sky in the early fall in th...
共用题干 第三篇Operation MigrationIf you look up at the sky in the early fall in th...
admin
2020-12-24
41
问题
共用题干
第三篇
Operation Migration
If you look up at the sky in the early fall in the northern part of North America,you may see groups of
birds.'These birds are flying south to places where they can find food and warmth for the winter. They are
migrating(迁徙).The young birds usually learn to migrate from their parents. They follow their parents
south.In one unusual case,however,the young birds are following something very different. These birds
are young whooping cranes,and they are following an airplane!
The whooping crane is the largest bird that is native to North America. These birds almost disappeared
in the l800s.By 1941,there were only about 20 cranes alive.In the l970s,people were worried that these
creatures were in danger of disappearing completely.As a result,the United States identified whooping
cranes as an endangered species that they needed to protect.
Some researchers tried to help.They began to breed whooping cranes in special parks to increase the
number of birds.This plan was successful. There were a lot of new baby birds.As the birds became older,
the researchers wanted to return them to nature.However,there was a problem:These young birds did not
know how to migrate.They needed human help.
In 2001,some people had a creative idea. They formed an organization called Operation Migration.
This group decided to use very light airplanes,instead of birds,to lead the young whooping cranes on their
first trip south.They painted each airplane to look like a whooping crane.Even the pilots wore special clothing
to make them look like cranes.The cranes began to trust the airplanes,and the plan worked.
Today,planes still lead birds across approximately 1,200 miles(1,931 kilometers),from the United
States-Canadian border to the Gulf of Mexico.They leave the birds at different sites.If a trip is successful,
the birds can travel on their own in the future.Then,when these birds become parents,they will teach their
young to migrate.The people of Operation Migration think this is the only way to maintain the whooping
crane population.
Operation Migration works with several other organizations and government institutes.Together,they
assist hundreds of cranes each year. However,some experts predict that soon,this won't be necessary.
Thanks to Operation Migration and its partners,the crane population will continue to migrate. Hopefully,they
won't need human help any more.
选项
The distance covered by the young whooping cranes on their trip south is__________.
A:120 miles
B:1,931 miles
C:1,200 miles
D:2,000 miles
答案
C
解析
由文章第一段第二句话,"These birds are flying south to places where they can find food and warmth for the winter.”可知,高鸣鹤迁徙到南方是因为在这些地方过冬它们可以找到食 物,并且天气也暖和。故选A。
由文章第二段第一句话可知,选A。
由文章第四段第三句话,"This group decided to use very light airplanes, instead of birds, to lead the young whooping cranes on their first trip south.”可知,迁徙行动这一组织决定用轻型 飞机来带领年轻一代高鸣鹤的首次往南迁徙的旅程。
由文章倒数第二段第一句话可知,选C。
由文章倒数第二段中“If a trip is successful, the birds can travel on their own in the fu- ture.Then, when these birds become parents, they will teach their young to migrate.”可知,如果这 一实验成功,高鸣鹤以后就能自己往南迁徙。然后,当这些高鸣鹤做父母后就可以教它们的后 代迁徙了。故选A。第5部分:补全短文
转载请注明原文地址:https://ti.zuoweng.com/ti/bldQKKKQ
相关试题推荐
共用题干 资料:王太太从事个体服装销售近20年,前一段时间,她刚参加了国家的社会养老保险,但是她对国家举办的国家社会养老保险不是很明白;于是她向理财规划...
共用题干 赵刚今年28岁,在中关村一家高科技公司上班,月薪4000元(税后,下同),每年奖金红利为3个月工资,估计未来每年调薪200元,下个月就要结婚。...
共用题干 袁先生与李女士刚刚结婚,组建家庭。其中,袁先生,28岁,每年的年收入为5万元;李女士,28岁,每年的年收入为3万元,每月还可以获得投资收入50...
共用题干 袁先生与李女士刚刚结婚,组建家庭。其中,袁先生,28岁,每年的年收入为5万元;李女士,28岁,每年的年收入为3万元,每月还可以获得投资收入50...
共用题干 夏某夫妇计划于明年生育一个宝宝,请理财规划师为其调整家庭的风险管理和保险规划。根据案例回答6~9题。夏太太的朋友计划届时为自己的孩子购买和夏太太孩子
共用题干 夏某夫妇计划于明年生育一个宝宝,请理财规划师为其调整家庭的风险管理和保险规划。根据案例回答6~9题。目前,夏先生有很好的社会保障,但夏太太没有社会保
共用题干 龚建柱是某中学教师,30岁,每月税后收入4000元,年终奖金10000元;龚太太是某公司文秘,25岁,每月税后收入3000元。(1)家庭资产负...
共用题干 龚建柱是某中学教师,30岁,每月税后收入4000元,年终奖金10000元;龚太太是某公司文秘,25岁,每月税后收入3000元。(1)家庭资产负...
共用题干 龚建柱是某中学教师,30岁,每月税后收入4000元,年终奖金10000元;龚太太是某公司文秘,25岁,每月税后收入3000元。(1)家庭资产负...
共用题干 唐先生夫妇都是国有企业中层管理人员,二人均为45岁,家庭年收入总额为税后300000元。他们有一个刚上大学的儿子,生活已经基本独立。家中具有银...
随机试题
在中华人民共和国境内从事()以及食品的储存和运输等活动,应当遵守《中华人民共和国
A所有图形均为一笔画图形。故本题选A。
三、判断改错题:(每题2分,判断1分,改错1分)共20分) 1、接地线应使
A.提高银汞合金压缩强度 B.使合金结构紧密,孔隙率降低,提高强度 C.强度改变不大 D.压缩强度随汞含量增加而下降 E.压缩强度为125Mpa用银汞调
关于公司和应聘者之间的关系,下列说法不正确的是()。 A.公司和应聘者之间是双向选择的关系 B.公司应该着重显示其选择的强势的一面 C.公司应该客...
课堂上同学们就“气候变化的影响”展开了热烈的讨论,通过交流,同学们对气候变化带来的影响有了更多的了解。该事例主要体现了信息的( )。A.时效性B.真伪性C
篮子里装有不多于500个苹果,如果每次二个、每次三个、每次四个、每次五个、每次六个地取出,篮子中都剩下一个苹果,而如果每次七个地取出,那么没有苹果剩下,篮...
某商品销售额本年同上年相比没有变化,而商品价格平均上涨了7%,则商品销售量平均()A.下降了6.5%B.上涨了5%C.下降了7%D.上涨了7%
患者男,25岁,1年来牙龈逐渐肿大。检查发现:全口牙龈乳头及龈缘肿大,上下前牙明显。龈乳头球状突起,前牙牙龈呈分叶状,质地坚硬,略有弹性,呈粉红色,不出血...
我国的房地产权属登记制度基本采用权证登记制度,主要表现不包括()A:法律确认房地产权属证件效力,撤销权属证件需经法律程序B:实行房地产权属发证制度,颁发的权属