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
24
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 give out faint cries.
B、They make noises to drive away insects.
C、They extend their water pipes.
D、They become elastic like rubber bands.
答案
A
解析
信息明示题。短文开头指出in very hot,dry weather,plants also make faint sounds即在非常炎热干旱的天气,植物会发出微弱的声音。所以选A。
转载请注明原文地址:https://tihaiku.com/zcyy/3429675.html
相关试题推荐
[originaltext]AlongtheriverbanksoftheAmazonandtheOrinocothereliv
[originaltext]AlongtheriverbanksoftheAmazonandtheOrinocothereliv
[originaltext]AlongtheriverbanksoftheAmazonandtheOrinocothereliv
[originaltext]Itishardlysurprisingthatclothingmanufacturersfollowce
[originaltext]Itishardlysurprisingthatclothingmanufacturersfollowce
[originaltext]AFrenchtouristhighlypraisedforrescuingatwo-year-oldg
[originaltext]AFrenchtouristhighlypraisedforrescuingatwo-year-oldg
[originaltext]W:Hi,Tom.Howthingsgetalongwiththepreparationfortheann
[originaltext]W:Hi,Tom.Howthingsgetalongwiththepreparationfortheann
[originaltext]M:Pleasereconsider—whathaveyougotagainstkeepingadogfo
随机试题
They______tohearthattheirfootballteamwonagreatvictoryovertheopponent
Springisa【B1】______season.Thetemperaturesaremild,andthebloomingtre
[originaltext]Somepeopledonotlikeanythingtobeoutofplace:theyare
[originaltext]Astheholidayshoppingseasonbegins,hackersaretryingtot
“一”在单念或在词句末尾时候念阴平。()
引起社区获得性肺炎占首位的革兰阴性杆菌是A.军团菌 B.铜绿假单胞菌 C.肺
锅炉本体主要由“锅”和“炉”组成,下列哪项不是“炉”所包括的设备()。A:省煤
甲公司投标承包了一栋高档写字楼工程的施工总承包业务,经业主方认可将其中的专业工程
左边为给定立方体的展开图形,右边选项哪一个可由其折叠而成? A.如图所示 B
Allemployeetravelexpensereportsmust
最新回复
(
0
)