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
专升本
Can trees talk? Yes — but not in words. Scientists have reasons to believe that trees do communicate with each other. Not long a
Can trees talk? Yes — but not in words. Scientists have reasons to believe that trees do communicate with each other. Not long a
admin
2012-05-24
57
问题
Can trees talk? Yes — but not in words. Scientists have reasons to believe that trees do communicate with each other. Not long ago, researchers learned some surprising things. First a willow tree (柳树) attacked in the woods by caterpillars (444) changed the chemistry of its leaves and made them taste so terrible that the caterpillars got tired of the leaves and stopped eating them. The even more astonishing, the tree sent out a special vapor — a signal causing its neighbors to change the chemistry of their own leaves and make them less tasty.
Communication, of course, doesn’t need to be always in words. We can talk to each other by smiling, raising our shoulders and moving our hands. We know that birds and animals use a whole vocabulary of songs, sounds, and movements. Bees dance their signals, flying in certain patterns that tell other bees where to find nectar (花蜜) for honey. So why shouldn’t trees have ways of sending messages?
From the passage we know that caterpillars______.
选项
A、like willow trees
B、enjoy eating fallen leaves
C、talk to caterpillars
D、send a special vapor
答案
A
解析
转载请注明原文地址:https://kaotiyun.com/show/puGC777K
本试题收录于:
英语题库普高专升本分类
0
英语
普高专升本
相关试题推荐
下列微分方程中,可分离变量的方程是()
BernieVoytas,46,hadbeenworking28hardandlongdays.That’sthewayofitfora【36】duringharvesttimeinRandolphCounty,
Whileactingmayruninthefamily,itwasn’tAngelinaJolie’sonlychoicewhenshethoughtaboutherfuturecareer.AlthoughJo
Thedayshegotmarriedisadayshewillalways______thoughherchildrenhavegrownupandalsogotmarried.
A、Getahat.B、Buygasoline.C、Cutthegrass.D、Gotothetrainstation.B
About70millionAmericansaretryingtoloseweight.Thatisalmost1outofevery3peopleintheUnitedStates.Somepeopleg
(非英语专业做)Therewasatimewhenparentswhowantedaneducationalpresentfortheirchildrenwouldbuyatypewriter,aglobe
Tom______morethantwentypoundsforthedictionary.
IntheUnitedStates,about750,000personshavesufferedAIDS.Morethanonehalfofthemhavedied.Butdoctorssayevide
Allthestudents____theirholidaystotakepartinplantingtrees.
随机试题
静脉也称容量血管,整个静脉系统可容纳全身循环血量的
A.CD2、CD3、CD4、CD7、CD8阳性B.CD10、CD19、CD20阳性C.CD16、CD56阳性D.CD13、CD14、CD15阳性B细胞及其肿瘤的表型特征是
A.肾上腺素B.利多卡因C.阿托品D.碳酸氢钠E.洛贝林用于兴奋呼吸中枢的药物是
应激源的分类有
患者男,50岁。2年前患有肝炎,入院治疗后好转,近来出现浑身乏力,食欲不振,体重减轻等症状,因而再次入院。体检:巩膜黄染,慢性肝病面容,肝肋下2cm,脾肋下刚刚触及。实验室检查:HBsAg、HBeAg、抗HBcIgM及抗核抗体均阳性。下列有关该病的说法正确
A.血虚发热B.瘀血发热C.气虚发热D.肝郁发热E.阴虚发热午后或夜间发热,手足心热或潮热,心烦,少寐多梦,颧红面赤,便干尿赤,内伤发热证属
阿托品中毒的表现有
昨天是小红的生日,后天是小伟的生日。他俩的生日距星期天同样远。如果上述断定为真,那么,今天是星期几?()
数字图像的文件格式有多种,不同的文件格式采用不同的编码方法,具有不同的特点,适合不同的应用。其中【43】图像文件格式颜色数目较少(不超过256色),文件特别小,支持动画,适合互联网传输。【44】图像文件格式是静止图像数据压缩编码的国际标准,它在数码相机和互
数据库设计过程不包括
最新回复
(
0
)