首页
登录
职称英语
[originaltext] We all scream for water when thirsty. [9]But do you know in v
[originaltext] We all scream for water when thirsty. [9]But do you know in v
游客
2024-04-10
14
管理
问题
We all scream for water when thirsty. [9]But do you know in very hot, dry weather, plants also make faint sounds—as if they are 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 10,000 times more quiet than a whisper. Robert knows that healthy, well-watered plants are quiet. [10]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 this 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 the insects to see if they attack more often than usual. If he is right, scientists could use the insects’ ability against them. [11]They could build traps that imitate crying plants, so when the insects buzz in to eat, they won’t buzz out.
Questions 9 to 11 are based on the passage you have just heard.
9. What do plants do when they are thirsty?
10. What plants do many insects tend to attack?
11. 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 build devices to trap insects.
D、They could make the plants grow faster.
答案
C
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3549003.html
相关试题推荐
[originaltext]Ifyou’recarefulenough,you’llfindthatitiscommonnowad
[originaltext]Ifyou’recarefulenough,you’llfindthatitiscommonnowad
[originaltext]InBritainthebiggestnumberofworkingforeignerscomesfro
[originaltext]InBritainthebiggestnumberofworkingforeignerscomesfro
[originaltext]Peter:(19)ThelawontaxisisveryinterestingandIknowinLon
[originaltext]Peter:(19)ThelawontaxisisveryinterestingandIknowinLon
[originaltext]Ababyspendsthefirstyearoflifelearningtolisten.(9)A
[originaltext]Ababyspendsthefirstyearoflifelearningtolisten.(9)A
[originaltext]W:Hi,Scott,haveyouheardaboutDianarecently?M:No,Ihave
[originaltext]W:Hi,Scott,haveyouheardaboutDianarecently?M:No,Ihave
随机试题
A.≤l B.≤1.5 C.≤2 D.≤2.5
关于肝细胞性黄疸下列错误的A.血胆红素增加 B.粪胆原下降或正常 C.尿中尿
关于贷款展期的担保问题,下列说法错误的是()A.对于保证贷款的展期,银行应重
男性患者,21岁。昨夜会餐,5小时后开始出现恶心,呕吐胃内容物,伴腹痛、腹泻。查
患者,男,患有慢性胃炎,大便溏,近日因腹痛就诊,自诉不欲饮食,口不渴,诊其苔白滑
对公司盈利能力和公司成长性分析需要分析()。 Ⅰ.公司盈利预测 Ⅱ.
(2016年真题)下列关于主动投资的说法,错误的是()。A.在非完全有效的
要成巨富,还须“争时”,放远眼光,走在别人前面;当然,仅有眼光是不够的,作为一个
依法负责期货从业人员资格的认定,管理及撤销的机构是()。A.中国期货业协会
男性,42岁,近一个月来在刷牙时常出现右上牙部及右面部疼痛,每次持续5~6秒钟,
最新回复
(
0
)