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 remarkable variety of insects live in this planet. More species of insects exist than all other animal species together. Insec
A remarkable variety of insects live in this planet. More species of insects exist than all other animal species together. Insec
admin
2020-01-09
20
问题
A remarkable variety of insects live in this planet. More species of insects exist than all other animal species together. Insects have survived on earth for more than 300 million years, and may possess the ability to survive for millions more.
Insects can be found almost everywhere—on the highest mountains and on the bottom of rushing streams, in the cold South Pole and in bubbling hot springs. They dig through the ground, jump and sing in the trees, and run and dance in the air. They come in many different colors and various shapes. Insects are extremely useful to humans, pollinating (授粉) our crops as well as flowers in meadows, forests, deserts and other areas. But ticks and some insects, such as mosquitoes and fleas, can transmit disease.
There are many reasons why insects are so successful at surviving. Their amazing ability to adapt permits them to live in extreme ranges of temperatures and environments. The one place they have not yet been found to any major extent is in the open oceans. Insects can survive on a wide range of natural and artificial foods—paint, pepper, glue, books, grain, cotton, other insects, plants and animals. Because they are small, they can hide in tiny spaces.
A strong, hard but flexible shell covers their soft organs and is resistant to chemicals, water and physical impact. Their wings give them the option of flying away from dangerous situations or toward food or mates. Also, insects have an enormous reproductive capacity: An African ant queen can lay as many as 43,000 eggs a day.
Another reason for their success is the strategy of protective color. An insect may be right before our eyes, but nearly invisible because it is cleverly disguised like a green leaf, lump of brown soil, gray lichen (青苔), a seed or some other natural object. Some insects use bright, bold colors to send warning signals that they taste bad, sting or are poison. Others have wing patterns that look like the eyes of a huge predator, confusing their enemies. Some insects also imitate bitter-tasting insects; hungry enemies are fooled into avoiding them.
Some insects disguise like natural objects so as to _____.
选项
A、frighten away their enemies
B、avoid being discovered
C、send warning signals
D、look bitter-tasting
答案
B
解析
推理判断题。本题考查对长句的理解。最后一段第2句中的nearly invisible表明昆虫伪装是为了不被发现,因此B为正确选项。其他选项虽然都是昆虫伪装的目的,但都与伪装成自然物体无关。
转载请注明原文地址:https://kaotiyun.com/show/xJp7777K
0
大学英语四级
相关试题推荐
CorporateAmbitions:Amazon,theWorld’sMostRemarkableFirm,IsJustGettingStartedA)Amazonisanextraordinarycompany.Th
CorporateAmbitions:Amazon,theWorld’sMostRemarkableFirm,IsJustGettingStartedA)Amazonisanextraordinarycompany.Th
CorporateAmbitions:Amazon,theWorld’sMostRemarkableFirm,IsJustGettingStartedA)Amazonisanextraordinarycompany.Th
Aremarkablevarietyofinsectsliveinthisplanet.Morespeciesofinsectsexistthanallotheranimalspeciestogether.Insec
Aremarkablevarietyofinsectsliveinthisplanet.Morespeciesofinsectsexistthanallotheranimalspeciestogether.Insec
TheEarthcomprisesthreeprincipallayers:thedense,iron-richcore,themantlemadeofsilicate(硅酸盐)thataresemi-moltenat
Foxesandfarmershavenevergotonwell.Thesesmalldog-likeanimalshavelongbeenaccusedofkillingfarmanimals.Theyare
Howdowegetmorepeopletoincreasetheirconsumptionofiron-richfoods?Manynutritionists【C1】______theincreaseofanumber
Howdowegetmorepeopletoincreasetheirconsumptionofiron-richfoods?Manynutritionists【C1】______theincreaseofanumber
随机试题
根据我国法律规定,无因管理适用()
关于社会主义发展阶段,()提出社会主义又可分为两个阶段,第一个阶段是不发达的社会主义,第二个阶段是比较发达的社会主义。后一个阶段可能比前一阶段需要更长的时间。
下列哪些疾病可出现舒张期奔马律()
与CT噪声有关的因素是
A.中性粒细胞B.淋巴细胞C.嗜酸性粒细胞D.嗜碱性粒细胞E.单核细胞食盐中毒病猪,脑组织病灶渗出的主要炎性细胞是()
远期外汇市场的期限一般有()。
下列关于保证责任的表述中,不正确的是()。
阅读《我的第一本书》教学实录(片段),回答问题。师:(A)感谢三位的精彩朗读,哪位同学来点评一下?生1:父亲的第一问应该读出“生气”的口吻,刚才朗读者语气偏低了。师:(B)他说要读出生气的语气,同意吗?生2:不同意。因为这一问前面的语境是父亲“愁苦
在某省的偏远地区,一字相逢地搭列着五个小镇,已知:幸福镇既不要临着幸运镇,也不临着文馨镇;文慧镇既不临着文祥镇,也不临着文馨镇;文祥镇既不要临着幸运镇;也不要临着文馨镇;幸福镇没有超市;有超市的是排在第一和第四的小镇。由此可见,排在第二的小镇是?
面向对象方法中,继承是指()。
最新回复
(
0
)