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
2023-08-22
39
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 fuel that burns cleanly.
B、An oil additive that helps cool engines.
C、A material from which filters are made.
D、An insulating material sprayed on engine parts.
答案
D
解析
细节题。听力对话中出现一个专有名词时,通常情况下会紧接着对这一名词进行进一步的解释。该对话在提到coniineoxide后对其作了解释:It’s a really good insulator.And a thick coatof get sprayed on certain part of the engine,即“是一种很好的绝缘体,是喷洒在发动机某一部位的厚厚的涂层”。选项D将这一解释进行了归纳概括。
转载请注明原文地址:https://tihaiku.com/zcyy/2946723.html
相关试题推荐
[originaltext]M:Jenny,I’llhavesomechickenorsteakforlunch.Whatabouty
[originaltext]M:Doyouknowwhetherourhealthinsurancecoversexpensesford
[originaltext]M:Doyouknowwhetherourhealthinsurancecoversexpensesford
[originaltext]AhealthynewborngirlwasdiscoveredinCentralParkyesterd
[originaltext]AhealthynewborngirlwasdiscoveredinCentralParkyesterd
[originaltext]Kuwaitisacountrywhichisquitesmall,butwhichisveryr
[originaltext]Kuwaitisacountrywhichisquitesmall,butwhichisveryr
[originaltext]Kuwaitisacountrywhichisquitesmall,butwhichisveryr
[originaltext]Mostdoctorshavelongbelievedthatreducingsaltcandecrea
[originaltext]Mostdoctorshavelongbelievedthatreducingsaltcandecrea
随机试题
Teachersintheprogrammusthavean(advance)______proficiencylevelinEnglish
Collegeisaplacetoexploremanypossibilities;youreallycan’tdoitall—
Youcanperformallthosefunctionsthatyouperformatpresentwithyourmo
[originaltext]Okay,we’vebeendiscussingfilmsinthe1920sand1930s,and
[originaltext]W:Hello,Danny.ThisisAnna.I’mcallingfromwork.How’syour
侵蚀性葡萄胎的诊断依据是A.β-HCG定量测定 B.病理分级 C.葡萄样水泡
影响药物吸收的剂型因素A.肾小球过滤 B.血脑屏障 C.胃排空与胃肠蠕动
在“页眉/页脚”中,不能插入( )A.字符 B.日期 C.页码
关于当事人能力和正当当事人的表述,下列哪一选项是正确的?A:一般而言,应以当事人
投资项目决策分析与评价的基本要求包括贯彻落实科学发展观、资料数据准确可靠和()
最新回复
(
0
)