首页
登录
职称英语
[originaltext] A team of scientists recently began a project to measure the e
[originaltext] A team of scientists recently began a project to measure the e
游客
2023-08-07
34
管理
问题
A team of scientists recently began a project to measure the effects of loud noises on sea animals. If the sounds don’t harm the animals, then the researchers can go ahead with a plan to transmit sound waves through the Pacific Ocean to take the earth’s temperature. Sound travels faster through warm water than cold water. (12)By analyzing the speed of sound through the ocean over time, the scientists will be able to determine if our planet is warming up. (13) The experiment was nearly cancelled more than a year ago because environmental groups fear that the sound will confuse or harm sea animals. So scientists are conducting tests on the animals first. The researchers lowered a loud speaker that emits low frequency sound about 1 000 meters beneath the ocean. (14) Scientists at the site transmit sound waves into the ocean. Radio transmitters attached to some of the sea animals help the researchers keep track of the animals’ movements. If sea animals are distressed by the sounds, they would swim away from the speakers. So far, there aren’t any signs that the animals are being harmed. Researchers at the site noticed that (15)large numbers of sea animals swim near the speaker whether it was turned on or off, but it is still too soon to know for sure, the scientists admit. The tests will continue through September. "If all goes well," they say, "we can begin measuring temperature changes on our planet."
Questions 12 to 15 are based on the passage you have just heard.
12. What is the purpose of analyzing the speed of sound through the Pacific Ocean?
13. Why was the experiment nearly cancelled?
14. For what purpose were radio transmitters used?
15. What was the reaction of the sea animals in the sound tests?
选项
A、To determine whether our planet is warming up.
B、To study the behaviors of some sea animals.
C、To measure the depth of the ocean.
D、To measure the movement of the ocean.
答案
A
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2906679.html
相关试题推荐
强制措施compulsorymeasure
[originaltext]Objectsthatarevibratingmakesounds.Rhythmicsoundvibrations
[originaltext]Objectsthatarevibratingmakesounds.Rhythmicsoundvibrations
[originaltext]Hi,everybody.AsIsaidinmyStateoftheUnionaddress,weliv
[originaltext]Hi,everybody.AsIsaidinmyStateoftheUnionaddress,weliv
[originaltext]IntheUnitedStates,manypeopleoncelivedinlarge,two-and-th
[originaltext]IntheUnitedStates,manypeopleoncelivedinlarge,two-and-th
[originaltext]Easterisamixofthreetraditions:Pagan,HebrewandChristian.
[originaltext]Easterisamixofthreetraditions:Pagan,HebrewandChristian.
[originaltext]Easterisamixofthreetraditions:Pagan,HebrewandChristian.
随机试题
Onewaytodeterminewhichplanetsoutsidethesolarsystemmightharborlif
TheCambridgeUnionSociety,commonly【C1】______(refer)tosimplyastheCam
HighlightingIsa
标准状况时,560mL乙烯与甲烷的混合气体通过溴水,溴水质量增加0.28g。计
队列研究的重要缺点是A.容易发生失访偏倚 B.在研究进程中研究对象可能改变暴露
在混凝土抗渗试验中,某组试件各块表面出现渗水现象时的最大压力如下表。试件编号|1
对福利进行监控要注意()。 A.关注相关的法律法规的变化 B.确保企
甲为了能在自己的房子里欣赏远处的风景。便与相邻的乙书面约定:乙不能在自己的土地上
根据我国《反不正当竞争法》的规定,下列行为属于不正当竞争行为中的混淆行为的是(
(2019年真题)以经济资本为基础计算的资本充足率,是监管当局限制银行过度承担风
最新回复
(
0
)