首页
登录
职称英语
A remarkable variety of insects live in this planet. More species of insects
A remarkable variety of insects live in this planet. More species of insects
游客
2024-02-16
29
管理
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. [br] The passage mentions that insects______.
选项
A、can be found in any extreme environments
B、have survived longer than any other creatures
C、can be fed on any natural or man-made foods
D、are important for the growth of crops and flowers
答案
D
解析
推理判断题。本题考查对含有分词结构句子的理解。根据第2段倒数第2句中的useful及分词结构pollinating可推断昆虫对植物的生长有益处。选项A、B、C中都有any,过于绝对。由第3段第2、3句可知选项A不对。文章虽在开头指出昆虫存活的年代久远。但全文未提到它是存活时间最长的生物,所以选项B错误。至于昆虫的食物,第3段倒数第2句有提及,但只是a wide range of,由此可排除选项C。
转载请注明原文地址:https://tihaiku.com/zcyy/3454446.html
相关试题推荐
[originaltext]M:Yes,we’reluckytohavesomuchvarietynow.Though,asIsai
[originaltext]M:Yes,we’reluckytohavesomuchvarietynow.Though,asIsai
Americansareproudoftheirvarietyandindividuality,yettheyloveandre
Americansareproudoftheirvarietyandindividuality,yettheyloveandre
Americansareproudoftheirvarietyandindividuality,yettheyloveandre
Themajorityofsmalltoothwhalesarecalleddolphins.Mostdolphinspecies
Themajorityofsmalltoothwhalesarecalleddolphins.Mostdolphinspecies
[originaltext]Socialinsectsliveinintegratedcommunitieswhichinsomew
[originaltext]Socialinsectsliveinintegratedcommunitieswhichinsomew
[originaltext]Socialinsectsliveinintegratedcommunitieswhichinsomew
随机试题
VocationalSchoolsTheuniversitiesarenotabletomeetallthe【T1】____
Thethiefranawayatthe______oftwopolicemen.A、sceneryB、seeingC、screenD、
冰岛雷克雅未克(64°09’N,21°58’w)驶向甲、乙港口的海上运输线曾是“
以下经脉名称错误的是A.手厥阴心包经 B.手少阴心经 C.足少阳三焦经 D
洁净室空气环境使用A.0.2%苯扎溴铵 B.干热灭菌 C.热压灭菌 D.微
可用于抗铜绿假单胞菌的药物是 A.链霉素 B.庆大霉素 C.卡那霉素B
下列关于本公文发文机关署名和成文日期的编排,表述正确的是:() A.成文日
企业财务报表是根据按照会计准则确认和计量的()交易和事项编制的。A.计划发生的
堤心石坡面验收后,应按设计要求抛填块石垫层,其作用是()。A.倒滤层 B.找
慢性粒细胞白血病的临床特点是() A.寒战、高热、出血并迅速衰竭 B.头痛、
最新回复
(
0
)