首页
登录
职称英语
What do plants do when they are thirsty? [br] [originaltext] We all scream
What do plants do when they are thirsty? [br] [originaltext] We all scream
游客
2024-10-30
24
管理
问题
What do plants do when they are thirsty? [br]
We all scream for water when thirsty. (15[A]) But do you know 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’re 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 10,000 times quieter than a whisper.
Robert knows that healthy, well-watered plants are quiet. (16[D]) 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 the plant sounds thirsty. Then he watches insects lo see if they attack more often than usual.
If he is right, scientists could use the insects’ ability against them. (17[D]) They could build traps that imitate crying plants. So when the insects buzz in to eat, they won’t buzz out.
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
细节题。结合问题,当听到文章读到If he is right时,注意听下文的解释:他们能够通过模仿发出叫声的植物来给昆虫设下陷阱(they could build traps that imitate crying plants),由此可见D 项正确。
转载请注明原文地址:https://tihaiku.com/zcyy/3823261.html
相关试题推荐
Thespeakerlikesteachingbecauseof______.[br][originaltext]Ihavetoteach
Thespeakerlikesteachingbecauseof______.[br][originaltext]Ihavetoteach
Thespeakerlikesteachingbecauseof______.[br][originaltext]Ihavetoteach
Thespeakerlikesteachingbecauseof______.[br][originaltext]Ihavetoteach
Thespeakerlikesteachingbecauseof______.[br][originaltext]Ihavetoteach
Thespeakerlikesteachingbecauseof______.[br][originaltext]Ihavetoteach
Thespeakerlikesteachingbecauseof______.[originaltext]Ihavetoteachthes
Whatdoesthespeakermean?[br][originaltext]Johnmetmeatthedoorandsaid
Whatdoesthespeakermean?[br][originaltext]Johnmetmeatthedoorandsaid
Whatdoesthespeakermean?[br][originaltext]Johnmetmeatthedoorandsaid
随机试题
Pre-courseLectureof"AmericanNovelSince1945"Tolearnth
Theownershipofpetsbringsavarietyofbenefitsthattheuninitiatedwoul
Takingondebtisoneofthemostimportanteconomicdecisionsapersoncan
下列属“元白诗派”的有()。A.元稹 B.白居易 C.姚合 D.王建
隔离开关的用途之一是()。A.切断负荷电流 B.切断短路电流 C.拉合小电
公积金个人住房贷款出现了风险应由()。A.公积金管理中心和商业银行按照协议比例
异议信息确实有误,但因技术原因无法修改时,征信服务中心应()。A:不得按照异议申
在公司信贷中的合法合规原则下,商业银行要坚持()的原则。A:盈利 B:“区别
(2021年真题)话剧类服务产品是针对()的服务。A.无形资产 B.人的思
在总需求不足、出现通货紧缩的情况下,财政当局应实施()财政政策。A.紧缩性
最新回复
(
0
)