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
2013-04-06
48
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.
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://kaotiyun.com/show/jFr7777K
0
大学英语四级
相关试题推荐
A、Becauseshehelpedhiminthekitchen.B、Becauseit’sthegirl’sbirthday.C、Becauseshecan’tcookwell.D、Becauseherfather
A、EnglandwontheWorldCup.B、BritainjoinedtheEuropeancommunity.C、TheChannelTunnelwasopened.D、Britainwasinvadedby
A、In1604.B、In1750.C、In1755.D、Around1700.A事实题。本文介绍英语字典的发展史。通过浏览选项可知,本题考的是“哪一年”发生了某事,应该在各提及的时间旁边记录相关事件。文中第一句就提到:“Thefirst
ScientistsintheUnitedStateshavereportedsomegoodnewsabouttheozoneintheatmosphere.Recentfindingssuggestthatthe
A、BecausetheUNwantedtoincreasethewateruseintheworld.B、BecausetheUNwantedtoattractpeople’sattentiontothewat
A、Hehasdifficultymailingsenseoflogic.B、Statisticsandlogicarebothchallengingsubjects.C、Thewomanshouldseekhelpf
Ifyouwanttostayyoung,sitdownandhaveagoodthink.ThisistheresearchfindingofateamofJapanesedoctors,whosayt
A、Throughawidevarietyofhigh-frequencysounds.B、Throughawidevarietyoflow-frequencysounds.C、Throughanarrowrangeof
HowtoGetReadyforStudyingAbroadItwasailsomisleadinglysimple.IhadstudiedFrenchincollege,andmyuniversityo
5QuestionsontheOriginsofChristmasThetraditionsweassociatewithChristmashaveevolvedoverthecenturies.Hereare
随机试题
水下湿法焊接时,其焊接电流较大气中的焊接电流大()。
下列甲状腺功能亢进症的治疗方法中,粒细胞减少多见于
26岁已婚女性,因腹痛、发热、呕吐20小时急诊入院根据病史考虑不可能的诊断为
根据证监会的规定,证券公司申请融资融券业务试点,其经营证券经纪业务应当已经满3年。( )
甲公司经董事会和股东大会批准,于2016年1月1日开始对有关会计政策和会计估计作如下变更:(1)将一项使用寿命不确定的无形资产改为使用寿命有限的无形资产。该无形资产的账面价值为500万元。(2)对某栋以经营租赁方式租出办公楼的后续计量由成本模式变更为公
巴厘岛是印度尼西亚唯一信奉印度教的地区,有寺院4000多座,故称“千庙之岛”。()
老年期记忆衰退主要由于()。
赫尔巴特曾经指出________是学生品德形成的根本方法。
【2015.河北石家庄】马卡连柯提出的“要尽量多地要求一个人,也要尽可能地尊重一个人”反映了德育的()。
下列关于价值的表述,正确的有()。
最新回复
(
0
)