首页
登录
职称英语
共用题干 第三篇Operation MigrationIf you look
共用题干 第三篇Operation MigrationIf you look
最全题库
2022-08-02
27
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.The distance covered by the young whooping cranes on their trip south is__________.A:120 milesB:1,931 milesC:1,200 milesD:2,000 miles
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://www.tihaiku.com/zcyy/1502032.html
本试题收录于:
综合B题库综合类分类
综合B
综合类
相关试题推荐
共用题干 廖某委托甲房地产经纪机构(以下称甲机构)寻找房源,并签订了房地产经纪
共用题干 张某委托甲房地产经纪机构(以下称甲机构)为其寻找一套房子。经过反复比
共用题干 张某委托甲房地产经纪机构(以下称甲机构)为其寻找一套房子。经过反复比
共用题干 张某委托甲房地产经纪机构(以下称甲机构)为其寻找一套房子。经过反复比
共用题干 甲房地产经纪机构(以下称甲机构)是个人独资的房地产经纪机构。张某和王
共用题干 甲房地产经纪机构(以下称甲机构)是个人独资的房地产经纪机构。张某和王
共用题干 甲房地产经纪机构(以下称甲机构)是个人独资的房地产经纪机构。张某和王
共用题干 张某为甲合伙制房地产经纪机构(以下称甲机构)的注册房地产经纪人。王某
共用题干 张某为甲合伙制房地产经纪机构(以下称甲机构)的注册房地产经纪人。王某
共用题干 张某为甲合伙制房地产经纪机构(以下称甲机构)的注册房地产经纪人。王某
随机试题
Thewholepassageismainlyabout______.[br]Itisimpliedthat______.A、therea
设计条件 某医院原有五层病房楼,东侧接建四层病房楼,新、旧病房楼层高一致,防
A. B. C. D.视对焊缝质量等级的要求而定
砖砌体材料用量计算应选择( )法。A.现场技术测定 B.试验 C.统计
招标图样和工程量清单的详细程度能否使投标人进行合理报价,取决于( )。A.工程
存货周转率是衡量和评介公司( )等各环节管理状况的综合性指标。 I.购入存货
兼有抗炎、抗变态反应作用的中药是A.桂枝、细辛B.桂枝、柴胡C.桂枝、麻黄D.细
证券公司授权分公司经营证券自营业务或者投资咨询业务的,公司总部不得再经营或者再授
中国银行业监督管理委员会及其派出机构可以对()采用多样化的方式进行调查。A.商业
企业在年度中间终止经营活动,办理企业所得税汇算清缴的时间是()。A.自清算完
最新回复
(
0
)