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
A、In a Michigan mountain forest. B、In a Louisiana mountain forest. C、In a Kentucky mountain foresl. D、In a Mexican mountain fore
A、In a Michigan mountain forest. B、In a Louisiana mountain forest. C、In a Kentucky mountain foresl. D、In a Mexican mountain fore
admin
2014-08-13
42
问题
Monarch butterflies, the large origin black insects, are a common summer sight in the northern United States and Canada. They brighten in parks and gardens as they fly among the flowers. What makes monarch butterflies particularly interesting is they migrate, all the way to California or Mexico in back. They are thought to be the only insect that does this. Every year in the late summer, monarchs begin their migration to the south, those heading for Mexico go first for the Louisiana Mississippi region. Then they fly across to go for Mexico into Texas. Once in Mexico, they establish themselves in one of about 15 sizes in the mountain forest. Each side provides the winter home for millions of monarchs. The butterflies are so numerous that they often cover entire trees. When spring comes, they began their long journey north. The question is often asked whether every butterfly makes the round trip journey every year. And the answer is no. The average monarch lives about nine months. So when flying north, they might lay eggs in Louisiana and die. The eggs of that generation may be found in Kentucky, the eggs of the next generation may be in Wisconsin or Michigan. The last generation of the season about the forth will make the journey back to Mexico and restart the cycle. Scientists learn about monarch butterflies’ migration by capturing and placing identifying tags on the insects. By recapturing the attempt of the monarch and noting where they came from, the next scientist can figure out things like butterfly’s age and its routine.
19. What is unique about the monarch butterflies according to the speaker?
20. Where do monarch butterflies settle at the end of the migration?
21. What does the speaker say about monarch butterflies’ reproduction?
22. What is the talk mainly about?
选项
A、In a Michigan mountain forest.
B、In a Louisiana mountain forest.
C、In a Kentucky mountain foresl.
D、In a Mexican mountain forest.
答案
D
解析
题目是针对这类蝴蝶迁徙结束后的定居地点进行提问的。短文中提到,这类蝴蝶一旦抵达墨西哥,就会在山林里定居,题目中的settle对应原文中的establish themselves,因此,它们的定居地点是墨西哥的山林里。
转载请注明原文地址:https://kaotiyun.com/show/kIm7777K
0
大学英语六级
相关试题推荐
玉龙雪山(YulongSnowMountains)指的是丽江附近高大的山峰们。这些山脉南部离古城区北部只有30公里左右。玉龙雪山滑雪区是这里的当地人冬日里最喜欢去的地方。很少有中国人滑雪,但人们喜欢去那儿,在雪地里玩。它有一个初学者用的滑雪场,约半公里
Whenmymother’shealthwasfailing,Iwasthe"bad"sisterwholivedfarawayandwasn’tinvolved.Mysisterhelpedmyparents.
Theidealcompanionmachinewouldnotonlylook,feel,andsoundfriendlybutwouldalsobeprogrammedtobehaveinanagreeable
A、Stockbroker.B、Physicist.C、Mathematician.D、Economist.D事实细节题。对话开头男士问女士,作为一位经济学家,混沌理论对她的工作有什么影响。由此可知,女士是一位经济学家。
Aristotledefinedafriendas"asinglesouldwellingintwobodies".Howmanyfriendswehave,andhoweasilywemake,maintain
ThinkorSwim:CanWeHoldBacktheOceans?[A]Astheworldgetswarmer,sealevelsarerising.Ithasbeenhappeningatasnai
ThinkorSwim:CanWeHoldBacktheOceans?[A]Astheworldgetswarmer,sealevelsarerising.Ithasbeenhappeningatasnai
TheInternetandcellphonesarebringingpeopletogether,not【C1】______usapart—atleast,accordingtoanewsurveyrecentlyby
A、Hedecidednottosellthepiano.B、Hefoundaplacetostorethepiano.C、Noonehasboughtthepiano.D、He’llpostnoticesa
A、Designedvariousquestionnaires.B、Madesurveysinfactories.C、Madeanalysisonstatistics.D、Wrotereportsaboutproducts.A
随机试题
女性,50岁,反复低热1年,伴四肢大小关节肿痛。WBC8.0×109/L,HB100g/L,ANA(-),RF(+)。经多种抗生素正规治疗无效,可能的诊断是
公共关系传播模式与理论主要有()
她的月经周期是她的初潮年龄是
在自然保护区的()内,不得建设污染环境、破坏资源或者景观的生产设施;建设其他项目,其污染物排放不得超过国家和地方规定的污染物排放标准。
代理的特征包括()
张某欲购买李某的1辆旧的小汽车,但对该车的车况不放心。于是二人在买卖该车的合同中约定,如果在该车能顺利通过下一年度年检,张某就购买该车。该约定是()。
毕加索的著名代表作()被认为是第一件立体主义的作品。
下列文学常识的表述有错误的一项是()。
设矩阵且A3=0.求a的值.
Gardeningisthelayingoutandcareofaplotofgrounddevotedpartiallyorwhollytothegrowingplantssuchasflowers,herb
最新回复
(
0
)