首页
登录
职称英语
[originaltext]M: Hi, Diana. Mind if I sit down?W: Not at all, Jack. How have y
[originaltext]M: Hi, Diana. Mind if I sit down?W: Not at all, Jack. How have y
游客
2024-04-20
30
管理
问题
M: Hi, Diana. Mind if I sit down?
W: Not at all, Jack. How have you been?
M: Good. But I’m surprised to see you on the city bus. Your car in the shop?
W: No.(10)I’ve just been thinking a lot about the environment lately. So I decided the air will be a lot cleaner if we all use public transportation when we could.
M: I’m sure you are right. The diesel bus isn’t exactly pollution free.
W: True. But they’ll be running a lot cleaner soon. We were just talking about that in my environmental engineering class.
M: What’s the city gonna do? Install pollution filters of some sort on their buses?
W: They could, but those filters make the engines work harder and really cut down on fuel efficiency. Instead they found a way to make their engines more efficient.
M: How?
W: Well, there is a material called coniine oxide.(II)It’s a really good insulator. And a thick coat of it gets sprayed on certain part of the engine.
M: An insulator?
W: Well, yeah. Actually, what it does is reflect back the heat of burning fuel. So the fuel will burn much hotter and burn up more completely.
M: So a lot less unburned fuel comes out to pollute the air, right?
W: Yeah, and the bus will need less fuel. So with the savings on fuel oil costs, they say this will all pay for itself in just six months.
M: Sounds like people should all go out and get some of this stuff to spray on their car engines.
W:(12)Well, it’s not really that easy. You see, normally, the materials are fine powder. To melt it so you can spray a coat of it on the engine parts,(12)you first have to heat it over 10,000 degrees and then, well, you get the idea. It’s not something you or I would be able to do ourselves.
Questions 9 to 12 are based on the conversation you have just heard.
9. What does the passage mainly talk about?
10. Why does the woman decide to take buses?
11. What is the coniine oxide according to the speaker?
12. What is the defect of coniine oxide according to the woman?
选项
A、A new fuel for buses.
B、The causes of air pollution.
C、Careers in environmental engineering.
D、A way to improve fuel efficiency in buses.
答案
D
解析
主旨题。从听力对话中我们可知女士向男士介绍一种能使发动机运转更有效率的方法(a way to make their engines moreefficient)。听力材料中前半部分提到的女士选择坐公共汽车以及环境污染问题实际都是在为下文介绍coniine oxide这种提高发动机效率的方法作铺垫。
转载请注明原文地址:https://tihaiku.com/zcyy/3562985.html
相关试题推荐
[originaltext]Themodernsailingshipwasdevelopedbyamanwhoneverwent
[originaltext]SomestudentsattheOpenUniversityleftschool20yearsago
[originaltext]SomestudentsattheOpenUniversityleftschool20yearsago
[originaltext]SomestudentsattheOpenUniversityleftschool20yearsago
[originaltext]Hello,IamHaroldSmith.AstheeditoroftheVoice,I’dlik
[originaltext]Hello,IamHaroldSmith.AstheeditoroftheVoice,I’dlik
[originaltext]M:Hey,Yael,(13)checkoutmynewwhitesuit.It’sgoingtokeep
[originaltext]M:Hey,Yael,(13)checkoutmynewwhitesuit.It’sgoingtokeep
[originaltext]M:Hi,Diana.MindifIsitdown?W:Notatall,Jack.Howhavey
[originaltext]W:Jack,wouldyouminddrivingmetothestation?M:Sure,why
随机试题
Withthepossibleexceptionofequalrights,perhapsthemostcontroversial
EnthusiasmforPetsPetsarean【T1】______partofmanyBritishfamilies.
三铰拱分别在沿水平方向均布的竖向荷载和垂直于拱轴的均布压力作用下,其合理拱轴线是
患者,女,50岁。经常日间汗出,活动后尤甚,兼见畏寒肢冷、神疲乏力,小便清长、大
韩信拜将 淮阴侯韩信者,淮阴人也。始为布衣时,贫,无行,不得推择为吏。常从人
A.必须执行药品保管制度B.必须准确无误,并正确说明用法、用量和注意事项C.必须
某县城,由一条西南——东北的高速公路A将城区分割2块,北侧为旧区,南侧为新区。高
(2015年真题)2013年7月18日,孙某到甲公司应聘,双方口头约定合同期限2
用友软件中,记账后的凭证可以修改,相应账上的数据也可调整。()
某建设项目大气环境影响评价需预测的关心点与项目厂界距离为55km,适用于该关心点
最新回复
(
0
)