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
7
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、The high temperatures required for its use.
B、The lack of trained environmental engineers.
C、The opposition of automobile manufacturers.
D、The high cost of materials used in its production.
答案
A
解析
细节题。听力材料最后女士的回答中提到了这种材料的缺陷:it’s not really that easy及you first have to heat it over 10,000degrees,即coniine oxide的使用需要高温,选项A是对女士回答的同义转述。
转载请注明原文地址:https://tihaiku.com/zcyy/3562988.html
相关试题推荐
[originaltext]Themodernsailingshipwasdevelopedbyamanwhoneverwent
[originaltext]Themodernsailingshipwasdevelopedbyamanwhoneverwent
[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
[originaltext]W:Jack,wouldyouminddrivingmetothestation?M:Sure,why
随机试题
Friendisbetterthanfortune.Friendisworsethanpoisoninsome【C1】______
Muchoftoday’sscienceofphysicsisbasedonNewton’sdiscoveryofthethr
Whogoesfirstandwhofollows,andthe【C1】______towhichwomenare"emancip
为方便今后学生参加学校和班级组织的集体活动,学校要求全体入学新生定制校服。你所负
抑制胆碱酯酶的药物是()A:扑米酮 B:司来吉兰 C:可待因 D:布洛芬
颅内压增高的“三主征”包括:()A.偏瘫,偏盲,偏身感觉障碍 B.
A.煎煮法B.浸渍法C.渗漉法D.大孔树脂吸附分离法E.超临界萃取法适用于有效成
小儿开始协调注视物体的年龄为A.第3~4周 B.第1个月 C.第2个月 D
湖南省某地区基本.养老保险企业缴费率为19%,个人为7%;医疗保险企业缴费率为1
引起急性电离辐射损伤的下限辐射剂量一般为A.1Gy B.2Gy C.3Gy
最新回复
(
0
)