首页
登录
职称英语
[originaltext]M: Hi Diana, mind if I sit down?W: Not at all, Jack. How have yo
[originaltext]M: Hi Diana, mind if I sit down?W: Not at all, Jack. How have yo
游客
2023-07-21
18
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. 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. In stead they found a way to make their engines more efficient.
M: How?
W: Well, there is a material called coniine oxide. It’s a really good insulator. And a thick coat of it get 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: 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, 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 a ble to do ourselves.
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 away to make their engines more efficient。听力材料中前半部分提到女士选择坐公共汽车以及环境污染问题,都是为下文介绍coniine oxide一种提高发动机效率的方法做好铺垫。
转载请注明原文地址:https://tihaiku.com/zcyy/2857007.html
相关试题推荐
[originaltext]Therecentincreaseincarstealinghasalarmedthepolice,w
[originaltext]Therecentincreaseincarstealinghasalarmedthepolice,w
[originaltext]S:Let’stalkabouttheresultsofyourlaboratory?experiment.D
[originaltext]Baker:Sincesomanyofyouhaveaskedmeabouthowtolearnala
[originaltext]Baker:Sincesomanyofyouhaveaskedmeabouthowtolearnala
[originaltext]M:Ourrentisnowjust$600amonth.W:Iknow.It’sexactlyon
[originaltext]M:Ourrentisnowjust$600amonth.W:Iknow.It’sexactlyon
[originaltext]M:Ourrentisnowjust$600amonth.W:Iknow.It’sexactlyon
[originaltext]M:Ourrentisnowjust$600amonth.W:Iknow.It’sexactlyon
[originaltext]TodayI’dliketotalktoyouaboutgroupdiscussionswhich,
随机试题
Theideaofrobotscontrolledbythehumanbrainhaslongbeenastapleofs
Londoniscomposedof______and______.A、Londonboroughs,CityofLondonB、Londo
根据建设工程施工合同示范文本的规定,因不可抗力事件导致的下列损失中,应由发包人承
()是企业、组织主要以网络为传播平台,通过精心策划,实施可以让公众直接参与并享受
与黄疸发生,有关的脏腑是( ) A.肝 B.脾 C.胆 D.胃
在最高检发布的一起拒不支付劳动报酬犯罪典型案例中,黄某在项目完工、转包人足额支付
商业银行在衡量组合信用风险时,必须考虑到信贷损失事件之间的相关性。则下列说法最恰
目标市场的策略中,降低了营销成本,节省了促销费用,但长期使用会导致一部分需求得不
(2016年真题)企业对政策变更采用追溯调整法时,应当按照会计政策变更的累积影响
采用平行委托施工的单项工程,其施工进度计划应由()编制。A.业主方 B.
最新回复
(
0
)