题目内容
6.Have you ever had such experience?Travelers in the airport line up and march slowly toward the full-body scanner(扫描仪).Have you wondered that screening may one day speed up dramatically?Now,scientists are creating a cheap and smart new device that gathers data in a flash.It relies on microwaves to image objects.Microwaves are a form of electromagnetic radiation(电磁辐射)-types of energy that travel through space as a wave.Electromagnetic radiation includes visible (可见的) light,which can be seen with the naked eye.It also includes several types of energy,such as microwaves,that aren't visible with the naked eye.
In January,scientists at Duke University and elsewhere reported creating a new device that could help make smarter,faster and cheaper scanning machines.So far,the new device has been tested only in the lab.But if it works outside the lab,too,it could find use in a host of new products.
At airports,the new device could be used in machines that scan people for guns,knives or other would-be weapons.A technique similar to the one used by the researchers could be applied to other scanners,like those doctors use to peer into the body.This could reduce the amount of time patients spend in a scanner and the cost of such procedures.The device's designers even imagine police officers wearing vests embedded with the new technology to help identify a hidden weapon.
Instead of requiring expensive technology,a scanner based on the device could use existing materials (like copper) in a smarter way.Called metamaterials,these become useful based on how they're designed,not what they're made of.
"This definitely represents a less expensive and potentially faster alternative to current imaging methods,and its working principle is easily understood,"Kevin Kelly told Science News.Kelly is a technology specialist at Rice University in Houston.
67.What can we infer from the first paragraph?D.
A.Every traveler is willing to have a security scan.
B.The speed of security scan is slow because of so many travelers.
C.The new system has been put into market.
D.The current security scan system should be improved.
68.What is special about microwaves compared to visible light according to the passage?B.
A.It is a form of electromagnetic radiation.
B.You can't see it with your naked eyes.
C.It can travel through space.
D.It is a kind of energy.
69.With the new device we could do the following things exceptC.
A.shortening the patients'test time
B.helping patients spend less money
C.erasing the suffering of the patient
D.helping to identify a hidden weapon
70.What do you think the author will probably talk about in the following paragraph?A.
A.How does the new device work?
B.What is the new device like?
C.The application of the new device.
D.People's attitude about the new device.
分析 本文主要介绍科学家们正研制一种新的扫描仪,可用于机场,扫描速度更快,清晰度更高;也可用于医院,缩短病人的检测时间,减少病人费用,且工作原理容易理解.
解答 67--70 DBCA
67.D 推理判断题.根据第一段Now,scientists are creating a cheap and smart new device that gathers data in a flash可知,科学家们现在正在创造一个便宜聪明的新设备突然间收集数据.那意味着目前的设备不够完备,需要改进.故选D.
68.B 细节理解题.根据第二段It also includes several types of energy,such as microwaves,that aren't visible with the naked eye可知,微波用裸眼看不见,这是它特别之处.故选B.
69.C 细节理解题.根据第四段At airports,the new device could be used in machines that scan people for guns,knives or other would-be weapons和This could reduce the amount of time patients spend in a scanner and the cost of such procedures可知,这种新设备可以识别隐藏的武器,缩短病人的检测时间,减少病人费用,而没有提到可以消除病人的痛苦.故选C.
70.A 推理判断题.根据最后一段and its working principle is easily understood可知,既然它的工作原理容易理解,那下文可能介绍它的工作原理了.故选A.
点评 新闻一般采用"倒金字塔"式结构(即先说结果,再说重要事实,最后说次要内容),但有的通讯叙述方比较灵活多变,有顺叙、倒叙、中间或许还会有插叙、补叙等叙述方法,这就要求我们在阅读时特别关注.必须在十分有限的时间内运用略读、扫读、跳读等技巧快速阅读,搜寻关键词、主题句,捕捉时空、顺序、情节、人物、观点,并且理清文章脉络,把握语篇实质.
Do not be too discouraged if you are(54)B for a job,but think about the reasons the employers give.Those who made the second interview might have been studying the same subject as you and be of (55)C ability level,but they had something which made them a(56)A match to the selector's ideal.That could be experience gained through projects or vacation work,or it might be that they were better at communicating what they could offer.Do not take the comments at (57)B value:think back to the interviews that generated them and make a list of where you think the shortfall in your performance lies.With this sort of analytical approach you will eventually get your foot in the door.
Deciding how long you should stay in your first job is a tough call.Stay too long and future employers may question your(58)D and ambition.Of course,it depends on where you are aiming.If you are a graduate,spending five or six years in the same job is not too long provided that you take full advantage of the (59)B.However,do not use this as a(n) (60)C for lacking interest or enthusiasm.Graduates sometimes fail to take ownership of their careers and take the initiative.It is up to you to make the most of what's available within a company,and to monitor progress in case you need to(61)C.This applies particularly if you are still not sure where your career path lies.
It is helpful to think through what kind of experience you need to get your(62)B job and it is not a problem to move around to a certain extent.But in the(63)D stages of your career you need a definite strategy for reaching your goal,so think about that carefully before deciding to step forward from your first job.You must cultivate(64)A to be competent for any role.There is no guarantee that you will get adequate training,and research has shown that if you do not receive proper help in a new role,it can take 18months to (65)C it.
51.A.input | B.cause | C.guarantee | D.preparation |
52.A.failure | B.key | C.introduction | D.contribution |
53.A.highlight | B.comment | C.fluency | D.qualification |
54.A.asked | B.refused | C.headed | D.helped |
55.A.different | B.high | C.similar | D.low |
56.A.closer | B.better | C.stronger | D.poorer |
57.A.depth | B.face | C.data | D.test |
58.A.character | B.personality | C.behavior | D.drive |
59.A.knowledge | B.experience | C.skill | D.loyalty |
60.A.substitute | B.equivalent | C.excuse | D.requirement |
61.A.pass by | B.switch on | C.move on | D.stick to |
62.A.part-time | B.dream | C.secure | D.well-paid |
63.A.critical | B.last | C.middle | D.early |
64.A.patience | B.love | C.habits | D.friendship |
65.A.know | B.prohibit | C.master | D.select. |