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
2023-06-24
42
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] 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://tihaiku.com/zcyy/2780092.html
相关试题推荐
CorporateAmbitions:Amazon,theWorld’sMostRemarkableFirm,IsJustGetti
CorporateAmbitions:Amazon,theWorld’sMostRemarkableFirm,IsJustGetti
CorporateAmbitions:Amazon,theWorld’sMostRemarkableFirm,IsJustGetti
CorporateAmbitions:Amazon,theWorld’sMostRemarkableFirm,IsJustGetti
CorporateAmbitions:Amazon,theWorld’sMostRemarkableFirm,IsJustGetti
CorporateAmbitions:Amazon,theWorld’sMostRemarkableFirm,IsJustGetti
Aremarkablevarietyofinsectsliveinthisplanet.Morespeciesofinsects
Considerthis:manyofthetrulyremarkableinnovationsofthelatestgenera
Considerthis:manyofthetrulyremarkableinnovationsofthelatestgenera
Considerthis:manyofthetrulyremarkableinnovationsofthelatestgenera
随机试题
[audioFiles]2015m7s/audio_ezfj_005_20153[/audioFiles]
[originaltext]W:I’dliketobookatrainticketforBeijing,please?M:Beijin
()攻击是指借助于客户机/服务器技术,将多个计算机联合起来作为攻击平台,对一
诊疗干预类健康管理主要指参保人员在医疗机构享受诊疗服务时,针对服务选择、服务方式
属于典型的小细胞低色素性贫血的是A.再生障碍性贫血B.急性失血性贫血C.缺铁性贫
以下血浆能使PT检测结果延长的是A.轻度溶血血浆B.富含血小板的血浆C.贫含血小
下列哪种情况能使静脉血PO2降低A.贫血 B.CO中毒 C.剧烈运动 D
治疗胃痛脾胃虚寒证,宜选用的方剂是A.良附丸 B.丹栀逍遥散 C.柴胡疏肝散
下列关于工程造价咨询企业的说法,正确的是()。A.工程造价咨询企业资质永久有效
下列慢性颅内压增高所引起头颅X线改变,错误的是( )。A.脑回压迹增多加深
最新回复
(
0
)