首页
登录
职称英语
[originaltext] We all scream for water when thirsty. But do you know that in
[originaltext] We all scream for water when thirsty. But do you know that in
游客
2024-02-07
7
管理
问题
We all scream for water when thirsty. But do you know that in very hot, dry weather, plants also make faint sounds—as if they’re crying out for help? You see, in a plant’s stem, there are hundreds of water pipes that bring water and minerals from the soil all the way up to the leaves. As the ground turns dry, it becomes harder and harder for the plants to do this. In severe droughts, plants have to fight to pull out any water available. Scientist Robert Winter has found out that when it is really bad, their water pipes snap from the tension like rubber bands. When that happens, the whole plant vibrates a little. The snapping pipes make noises ten thousand times quieter than a whisper.
Robert knows that healthy, well-watered plants are quiet. He also knows that many insects prefer attacking dry plants rather than healthy plants. How do the insects know which are healthy plants and which are not? Robert thinks that the insects may listen for the plants that cry, and then they may buzz in to kill. To test his theory, Robert is using a device that can imitate plant cries. He attaches it to a quiet, healthy plant so that the plant sounds thirsty. Then he watches the insects to see if they attack more often than usual. If he is right, scientists could use the insects’ ability against them. They could build traps that imitate crying plants, so that when the insects buzz in to eat, they won’ t buzz out.
Questions 16 to 18 are based on the passage you have just heard.
16. What do plants do when they are thirsty?
17. What plants do many insects tend to attack?
18. What could scientists do if Robert’ s theory proves to be true?
选项
A、They could drive the insects away.
B、They could keep the plants well-watered.
C、They could make the plants grow faster.
D、They could build devices to trap insects.
答案
D
解析
信息明示题。根据短文最后两句可知如果Robert Winter的理论是正确的话,那么科学家就可以利用这个特点来发明可以捕昆虫的装置。故选项D正确。
转载请注明原文地址:https://www.tihaiku.com/zcyy/3429677.html
相关试题推荐
[originaltext]AlongtheriverbanksoftheAmazonandtheOrinocothereliv
[originaltext]AlongtheriverbanksoftheAmazonandtheOrinocothereliv
[originaltext]Itishardlysurprisingthatclothingmanufacturersfollowce
[originaltext]AFrenchtouristhighlypraisedforrescuingatwo-year-oldg
[originaltext]M:So,you’reanarchitect.W:Yes.M:Doyouworkforapublico
[originaltext]M:So,you’reanarchitect.W:Yes.M:Doyouworkforapublico
[originaltext]M:So,you’reanarchitect.W:Yes.M:Doyouworkforapublico
[originaltext]W:Hi,Tom.Howthingsgetalongwiththepreparationfortheann
[originaltext]M:Pleasereconsider—whathaveyougotagainstkeepingadogfo
[originaltext]M:Pleasereconsider—whathaveyougotagainstkeepingadogfo
随机试题
一项旅游资源所处的坐落地点对其吸引力的大小具有重要的影响。这里所说的坐落地点是指
根据《建设工程造价鉴定规范》(GB/T51262-2017),当事人一方在合同
关于城乡规划编制的说法中,错误的是( )。A.城市人民政府组织编制城市总体规划
混凝土的抗渗等级若为W4,表示混凝土抗渗试验时一组6个试件中4个试件未出现渗水时
A. B. C. D.
我国土地用途管制制度的特点包括()。A.带有明显的强制性 B.需要多部门协作
下列属于县政府职能部门的是()。 A.县政府办公室B.县政策研究室
A.<0.3ppm B.0.6~0.8ppm C.1.0ppm以下 D.2
(2016年真题)下列关于诉讼时效的适用及期间起算点的说法中,正确的有( )
根据《建设工程质量管理条例》,设计文件应符合国家规定的设计深度要求并注明工程(
最新回复
(
0
)