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
Everywhere in the world, plants and animals live together. Some animals eat plants they live with. Some plants stay alive becaus
Everywhere in the world, plants and animals live together. Some animals eat plants they live with. Some plants stay alive becaus
admin
2019-03-13
92
问题
Everywhere in the world, plants and animals live together. Some animals eat plants they live with. Some plants stay alive because many plant-eating animals have natural enemies that eat them. Rich soil for the roots of plants is produced by worms and other very small animals that live underground. Green plants feed animals and people.
It takes all the plants and animals living together to keep the earth a good place to live in. Plants and animals
trade with
each other. They trade for things they both need to stay alive.
Animals breathe and the air gets changed inside their bodies. When they breathe the air out again there’ s something called carbon (碳) in it. Animals can’t use this air again. But plants need carbon. The plants trade fresh air for the carbon they need.
Plants make food from carbon and water. They use sunlight for this work, just as a machine uses gas or electricity to keep running. The plants store the food they make inside themselves.
But what do the plants get in return? Many things. Plants make food from the carbon and other things that come from animals’ bodies. Insects like bees carry pollen (花粉) from one flower to another and the pollen forms seeds. Birds and other animals eat the fruit in which seeds grow and often drop the seeds where they can grow up into new plants. So animals help the growth of new plants.
What is the main idea of the text?
选项
A、Living things are connected in nature.
B、Some animals stay in plants for safety.
C、Animals and plants are of different types.
D、Some plants can stay alive by themselves.
答案
A
解析
由文章第一段第一句“Everywhere in the world,plant and animals live together.”以及第二段可知,文章的主旨是动植物的共存。A项与文章主旨相符。B、C、D项均不能表达这个含义,故选A。
转载请注明原文地址:https://kaotiyun.com/show/lZrd777K
本试题收录于:
公共英语二级笔试题库公共英语(PETS)分类
0
公共英语二级笔试
公共英语(PETS)
相关试题推荐
Wherearethetwospeakerstalking?
Itriedtomake______forheralthoughtherewerealreadythreepeoplethere.
Theuseofcarsisbecomingmoreandmorepopularinthetwentiethcentury.Alargenumberoftheworld’spopulationisnowable
Inmanywesterncountriespeopledonotbatheeveryday,Sometimestheybatheonlyonceaweek,Sometimestheybathetwoorthre
GrandmaMosesisamongthemostfamoustwentiethcenturypaintersoftheU.S..Yetshehadonlyjustbeganpaintinginherlat
Whatistheprobablerelationshipbetweenthetwospeakers?
Iusuallydon’ttakethesubway(地铁)togettomyoffice,butit’sagoodthingIdidlastTuesday.I36amansittingopposite
Iusuallydon’ttakethesubway(地铁)togettomyoffice,butit’sagoodthingIdidlastTuesday.I36amansittingopposite
Whenthesunstartedtoset,Jimheadedforhome.Hehadhuntedlongenough.Justthenhesawit.There,30feetinfrontofhim,a
WhenshouldJanegotoseeProfessorWhite?
随机试题
情绪的特点不包括
人工接地体可采用水平敷设的圆钢、扁钢、金属接地板,或垂直敷设的角钢、钢管、圆钢等。当采用钢管地下敷设时,最小壁厚为()。
焊接三通由高压无缝钢管焊制而成,其接口形式可加工成()。
【背景资料】为加强公路建设市场管理,规范公路建设市场秩序,保证公路工程质量,促进公路建设市场健康发展,《公路建设市场管理办法》对公路建设市场主体行为管理等作出了相关规定。《公路工程施工分包管理办法》对管理职责进行了相关规定。问题:公路建设项目法人申请
中央银行在公开市场上买卖有价证券,将直接影响(),从而影响货币供应量。
June3,2006SuzanneRogersUltra-ErgonomicFurnitureSalesandShippingDepartmentSuite58,107MorrisCircleMoorabbin,V
下列名僧中,西往天竺取经,历时25年,著有《大唐西域求法高僧传》的是()。
海空运输出口系统操作调度模块功能有()。
若有定义语句:intm[][3]={1,2,3,4,5,6,7};,则与该语句等价的是()。
Isawacarinthedistance,butIcouldn’t______whetheritwasredornot.
最新回复
(
0
)