首页
登录
职称英语
What do plants do when they are thirsty? [originaltext] We all scream for wat
What do plants do when they are thirsty? [originaltext] We all scream for wat
游客
2024-10-18
0
管理
问题
What do plants do when they are thirsty?
We all scream for water when thirsty. But do you know [15A] 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. He also knows that [16D] 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 to see if they attack more often than usual.
[17D]If his is right, scientists could use the insects’ ability against them. 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 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
题干关键词为plant,thirsty,所以注意相关信息。由原文提到的…in very hot,dry weather plants also make faint sounds…可知答案为[A]。
转载请注明原文地址:https://tihaiku.com/zcyy/3805972.html
相关试题推荐
Maryhas______onthefamilytraditionofgivingawayplants.A、carriedB、livedC、
NajibullahZaziwasarrestedbecause[br][originaltext][28D]AnAfghanim
NajibullahZaziwasarrestedbecause[originaltext][28D]AnAfghanimmigran
Whereshouldthefoodaidbedeliveredto?[originaltext]AUnitedNationsre
Obama’sproposalismeantto[originaltext]PresidentBarackObamahaspropos
JohnWilliams’houseismadeof[br][originaltext]Morethan40yearsago,
JohnWilliams’houseismadeof[br][originaltext]Morethan40yearsago,
Thespeakerwantsustoknowthatachild[originaltext][18B]Playisthepr
Whatdoplantsdowhentheyarethirsty?[originaltext]Weallscreamforwat
Whatistheman’sproblem?[br][originaltext]M:Excuseme,butisthiswhereI
随机试题
[originaltext]W:ABCRestaurant,canIhelpyou?M:Hi,couldyoutellmewhat
Youshouldwriteatleast120wordsfollowingtheoutlinegivenbelow:1.我们
[originaltext]W:Hey,Tom,what’sthatyou’rereading?M:It’saletterfroma
某定风量空调系统采用无机玻璃钢风管,由于机房空间受限,无法安装消声器,送风管途经
股票类证券产品的基本特征包括()。 Ⅰ.收益性 Ⅱ.偿还性 Ⅲ.风险性
喷他佐辛很少引起成瘾是因为A:拮抗μ受体 B:拮抗K受体 C:拮抗α受体
餐厨垃圾饲料加工脱水技术中,能保持蛋白质不变性的为( )。A.干燥法 B.高
A.骨下袋 B.复合袋 C.骨上袋 D.复杂袋 E.龈袋袋底位于牙槽嵴根
监理工程师在协助业主进行物资供应决策时,应进行的工作是( )。A.编制物资供应
某企业组织火灾事故应急演练,当天演练组织部门提前到达演练现场,对演练准备工作进行
最新回复
(
0
)