B

[解析] 1-4
M: So, Rebecca, what did you do for spring break?
F: I went to southern California. I was in Los Angeles and San Diego. Oh, and I stopped in San Juan Capistrano. That's south of Los Angeles and north of San Diego. I happened to be there just about the time the swallows returned.
M: Oh, I've heard about that——they always return on the same day, don't they?
F: That's right, on March 19th. And they always fly away on the same day, October 23rd. In the meantime, they migrate over 7,000 miles to get to their winter homes.
M: Seven thousand miles——imagine! And always coming back on the same day!
F: Yes, except for one year, a long time ago——they were delayed for a day by a storm at sea.
M: So, what's the town of San Juan Capistrano like?
F: Oh, it's a pleasant little town. Once there was a famous mission church there.
M: Once? What happened to it?
F: It was destroyed by an earthquake almost two hundred years ago. But there is an old adobe church that survived. The swallows build their nests in the walls and towers of that church.
M: You sure were lucky to be there on the one day of the year when the swallows return.
F: Well, I wasn't there exactly on that day. I got to town a couple of days later——but I did see the parade celebrating the swallows' return.
M. They have a parade? The people there must really like those swallows.
F: Sure——they bring lots of tourists to town, and be- sides, the swallows eat insects——including mosqui- toes!
[试题分析] 本题是细节题，关于地理方位的。
[详细解答] 度春假的地点，在San Juan Capistrano逗留，该镇在south of Los Angeles and north of San Die go。选B。

C

[解析] 细节题。关于swallows。
[详细解答] They always return on the same day on March 19th，and fly away on the same day，October 23rd．因此可推测它们是一种鸟，因此选C。

A

[解析] 细节题。
[详细解答] Swallows何时回到San Juan Capistrano． They always return on March 19th．故选A。

C

[解析] 细节题。关于swallows飞越的距离。
[详细解答] 从对话中很清楚是答案C。从"They mi grate over 7,000 miles to get to their winter homes．”

A

[解析] 5-7
M: I'm here for the campus tour.
F: I'm sorry. We only offer a guided tour during the first week of classes.
M: Oh, really? That's too bad. I was really hoping to get a good orientation. Last week, I spent nearly an hour trying to find a classroom in the Fine Arts Building.
F: You know what you can do——you can take the self- guided tour. This pamphlet tells you exactly what to do, where to go, and what to look for, and it has a complete map of the campus.
M: Sounds easy enough——where do I start?
F: The first stop is right here, in the Student Center Building. Then you go next door to the Science Building there's a great planetarium there, by the way——and from there you go to the University Recreation Center. After that, just follow the directions in the pamphlet and you can't go wrong.
[试题分析] 细节题
[详细解答] 从四个选项可能会问关于when的问题。 When is the guided tour of the campus given．从对话的第二句"We only offer a guided tour during the first week of classes．”正确答案是A。

B

[解析] 弄清细节，那个男人遇到了什么困难。
[详细解答] The man said：“I was really hoping to get a good orientation．I spend nearly an hour trying to find classroom．”因此A、C、D与本题无关，故正确答案为B。

B

[解析] 明白细节。The self-guided tour的起点。
[详细解答] 对话中有一句，“The self-guided tour is available，the pamphlet can tell you everything．The first stop is right here，in the Student Center Building"．因此 the self-guided tour的起点是B。

C

[解析] 8-10
M: Hi, Helen. How did your driving test go? Did you get your driver's license yet?
F: So far, I've just taken the written test. I did well enough on that, but I still have to take the road test.
M: I remember when I took the road test a few years ago. The first time I took it, I failed.
F: You failed! But you're such a good driver! What happened?
M: Well, I took a left-hand turn from the right lane, and the examiner told me just to turn around and go back to the testing center. It was pretty embarrassing.
F: My big problem is parallel parking. I just can't seem to get a car into those little spaces.
M: If you like, we can go out in my car before you take tile road test and practice parallel parking.
F: That would be great. I've just got to get my license. I can't believe that I have a car that my parents gave me just sitting in my garage, and I can't even drive it.
[试题分析] 本题是关于driving test的，属于细节问题。
[详细解答] 驾照考试有the written test and the road test．从对话中可得知Helen已经过了笔试，还须过 the road test。因此选C。

C

[解析] 弄清the man failed to the road test的原因。
[详细解答] The man回忆到几年前他参加the road test时，took a left-hand turn from the right lane。因此转错了车道而未通过。故选C。而Helen的问题是parallel parking。

B

[解析] 弄清细节。
[详细解答] Helen必须要参加the road test，但Her big problem is parallel parking。因此the man said：“If you like，we can go out in my car before you take the road test and practice parallel parking．”帮助她为实地开车做好准备。A、C、D与本题无关。因此选B。

B

[解析] 11-14
   Faces, like fingerprints, are unique.  Did you ever wonder how it is possible for us to recognize people? Even a skilled writer probably could not describe all the features that make one face different from another. Yet a very young child or even an animal, such as a pigeon can learn to recognize faces. We all take this ability for granted.
   We also tell people apart by how they behave. When we talk about someone's personality, we mean the ways in which he or she acts, speaks, thinks and feels that make that individual different from others.
   Like the human face, human personality is very complex. But describing someone's personality in words is somewhat easier than describing his face.  If you were asked to describe what a "nice face" looked like, you probably would have a difficult time doing so. But if you were asked to describe a "nice person", you might begin to think about someone who was kind considerate, friend- ly, warm- hearted, and so on.
   There are many words to describe how a person thinks, feels and acts.  An American psychologist found nearly 18,000 English words characterizing differences in people's behavior. And many of us use this information as a basis for describing, or typing his personality.  Book- worms, conservatives, military types: people are described with such terms.
   People have always tried to "type" each other. Actors in early Greek drama wore masks to show the audience whether they played the villains' or the heroes' role.  In fact, the words "person" and "personality" come from the Latin persona, meaning "mask". Today, most television and movie actors do not wear masks. But we can easily tell the "good guys" from the "bad guys" because the two types differ in appearance as well as in actions.
[试题分析] 本题测试的是对文章的理解。
[详细解答] 根据全文内容，我们可以看出作者主要还是介绍对人的性格的描述，因此答案是B。

A

[解析] 本题测试的是对句意的理解。
[详细解答] “Yet a very young child or even an ani mal，such as a pigeon can learn to recognize faces．”从这句话中，我们可以看出作者正是强调不管是人类还是动物都能辨识不同的脸孔。

B

[解析] 本题测试的是推理判断能力，我们可以用排除法来解答这个问题。
[详细解答] 文章中作者着重讨论的是通过外表和行为区分人的种类，因此可以看出作者的职业不可能是选项A内科医生，C小说作者和D历史学家，因此答案只能是B。

A

[解析] 本题测试的是对文章的理解。
[详细解答] 根据全文内容，我们可以很容易地看出答案是A，即通过外表和行为来划分人的类型。

C

[解析] 15-17
   A good marriage means growing as a couple but also growing as individuals. This isn't easy; marriage has always been difficult. Why then are we seeing so many divorces at this time? Yes, our modem social fabric is thin, and yes, the permissiveness of society has created unrealistic expectations and threw the family into disorder. But divorce is so common because people today are unwilling to exercise the self- discipline that marriage requires. They expect easy joy, like the entertainment on TV, the thrill of a good party.
   Marriage takes some kind of sacrifice, not dreadful self-sacrifice of the soul, but some level of compromise. Some of one's fantasies, some of one's legitimate desires, have to be given up for the value of the marriage itself. "While all martial partners feel shacked at times, it is they who really choose to make the martial ties into confining chains or supporting bonds," says Dr. Walter. Marriage requires sexual, financial and emotional disciple. A man and a woman cannot follow every impulse, cannot allow them to stop growing or changing.
[试题分析] 本题测试的是对句意的理解。
[详细解答] 原文中“But divorce is so common because people today are unwilling to exercise the self-discipline that marriage requires．”很明确地告诉了我们答案。

D

[解析] 本题是道细节分析题。
[详细解答] 从原文“Marriage takes some kind of sacrifice，not dreadful self-sacrifice of the soul，but some level of compromise．”，我们可以看出婚姻中需要一些牺牲，但决不能失去自我。

B

[解析] 本题测试的是对文章的理解。
[详细解答] 根据全文内容以及一些常识，我们都可以知道好的婚姻的维持都需要夫妻双方相互体谅，在一定程度上相互妥协。

D

[解析] 18-20
   Most people feel lonely sometimes. But it usually only lasts between a few minutes and a few hours. This kind of loneliness is not serious. In fact, it is quite normal. For some people though, loneliness can last for years. Now researchers say there are three different types of loneliness.
   Tile first kind of loneliness is temporary. This is the most common type. It usually disappears quickly and does not require any special attention. The second kind, situational loneliness, is a natural result of a particular situation for example, a family problem, the death of a loved one, or moving to a new place. Although this kind of loneliness can cause physical problems, such as headaches and sleeplessness, it usually does not last for more than a year. The third kind of loneliness is the most severe. Unlike the second type, chronic loneliness usually lasts more than two years and has no specific cause.  People who experience habitual loneliness have problems socializing and becoming close to others.
   Unfortunately, many chronically lonely people think there is little or nothing they can do to improve their conditions.
   Psychologists agree that one important factor in loneliness is a person's social contacts, e. g. , friends, family members, coworkers, etc. We depend on various people for different reasons. For instance, our families give us emotional support, our parents and teachers give of guidance, and our friends share similar interests and activities. However, psychologists have found that, though lonely people may have many social contacts, they sometimes feel they should have more. They question their own popularity.
[试题分析] 本题测试的是对文章的理解。
[详细解答] 根据全文内容，我们可以看出选项A， B，C都只是文章内容的一部分，不适合拿来作标题，故D为最佳答案。

A

[解析] 本题考查的是对细节部分的把握。
[详细解答] severe只是对第三种孤独的程度的描述，而不是其名称。

D

[解析] 本题测试的是对文章的理解。
[详细解答] 根据上下文“Psychologists agree that one important factor in loneliness is a person's social contacts，e．g．，friends，family members，co-workers，etc．We depend on various people for different reasons．”和“However，psychologists have found that， though lonely people may have many social contacts， they sometimes feel they should have more．They question their own popularity．”可以得出答案是D。

B

[解析] 21-23
   Sudanese opposition leader Sadeqal-Mahdi, who travels to Washington next week, says he will push the Bush administration to urge both sides in his country's civil war to make peace and create a true democracy. In an interview with Reuters news agency, Mr. Mahdi says the United States can play an important role in pressuring both sides to reach a just peace through political talks, not war-fare.
   Last week, Secretary of State Colin Powell visited the region and promised to try harder to end the Sudanese war, which has killed an estimated two million people. It pits the Muslim north against the largely Christian and animist south.
   Sudan's President Omar Hassan Al-Bashir and rebel leader John Garang are to hold proximity talks Saturday in Nairobi along with east African leaders trying to mediate an end to the 18 year conflict. In addition to the Kenyan host, President Daniel- arap Moi, the Ugandan, Ethiopian and Eritrean leaders are to attend the session.
[试题分析] 本题是一般信息题。
[详细解答] 正确答案可在材料中找到。解题时要听清人物背景。A、C两项人名古怪，分明是非洲人；而D项从头至尾未出现过，不要受干扰。

A

[解析] 本题是信息题。
[详细解答] 文中提到有估计二百万人死于战争。

C

[解析] 本题是细节题。
[详细解答] 几个非洲国家首脑周六将在Nairobi(内罗毕)开会，如果知道内罗毕是肯尼亚首都更好；听到最后一句In addition to the Kenyan host，即可知肯尼亚是东道主。所以选C项。

A

[解析] 24-26
   The United Nations is predicting food shortages in Zimbabwe this year because of government policies that al-lowed war veterans to take over hundreds of white owned farms, crippling their production.
   In a report published Friday, the U.N. Food and Ag-ricultural Organization foresees a nearly one-quarter drop in Zimbabwe's cereal production from last year. This includes a plunge of more than 50 percent in corn yields. The report says Zimbabwe will probably need to import more than 500,000 tons of cereals this year, but has only the hard currency to purchase about one-fifth that amount.
   The FAO study says the urban poor and low-income residents of southern and eastern Zimbabwe are most vulnerable to food shortages.
   Zimbabwe President Robert Mugabe has described the seizure of farms as a justified protest against the ownership by whites of about a third of the country's productive land.
   The government wants to expropriate white-owned land without compensation and redistribute it to landless blacks.
[试题分析] 本题是细节题。
[详细解答] 新闻中提到了津巴布韦农作物产量将减少one-quarter，用百分比表达，应是25%。

B

[解析] 本题是计算题。
[详细解答] 此题有两个要点，一是津巴布韦需进口 500，000吨谷物，二是政府拥有的硬通货只够买此数量的五分之一，即100，000吨。

D

[解析] 本题是综合辨析题。
[详细解答] A、B、C三项都可从新闻中获取相应信息。津巴布韦政府想要expropriate，即没收白人土地；如果不知道这个词，可从其后的without compensation中判定政府是不想给予补偿的，而不是用钱买土地。所以选D项。

C

[解析] 27-28
   Negotiations to try to rescue Argentina's national airline, Aerolineas Argentinas, from bankruptcy resume Friday in Buenos Aires.
   The country's main workers’syndicate, Confederation General del Trabajo (CGT), is sponsoring talks among the airline's seven unions in hopes of reaching an agreement that will bring the carrier desperately needed cash.
   Spain has a majority stake in the troubled airline and has offered a $ 350 million financial rescue package in exchange for a cut in workers' benefits. But the airline technicians' union is so far refusing to accept the deal. The other six unions associated with the carrier have agreed to the package. Aerolineas Argentinas faces some $ 900 million in debts and is losing between $ 20-30 million a month.
[试题分析] 本题是细节题。
[详细解答] 新闻中提到了other six unions．．．have agreed to the package，只要听清此句，问题迎刃而解。

D

[解析] 本题是计算题。
[详细解答] 新闻最后提到阿根廷航空公司负债 $900 million，每月损失$20-30 million，即每年损失$240-360 million，不要受其它数字干扰，看清题目问的是yearly，是本题的关键。

C

[解析] 29-30
   Japanese Foreign Minister Makiko Tanaka is reported to have voiced concerns over Washington's plan for a missile defense system.
   Japanese news reports Friday said Ms. Tanaka told Italian Foreign Minister Lamberto Dini in Beijing last Friday that she was concerned about U.S. plans to deploy missile defenses.
   The reports said she also suggested that Japan and Europe must cooperate in urging Washington to show caution about the plan.
   If the remarks are confirmed, it would put Ms. Tanaka at odds with Tokyo's official position that it "understands" Washington's plan to develop the National Missile Defense project.
   Washington says the system is needed to protect the United States and its allies from attack by so-called rogue nations.
[试题分析] 本题是细节题。
[详细解答] 虽然女外相是在中国发表的观点，但却是对意大利外交部长说的，不要受A项干扰。

D

[解析] 本题是细节题。
[详细解答] 女外相的观点与日本政府的立场相左，日本政府是“understand”，听清这个词是关键，不然只能用排除法做出选择了。

A

[解析] 本题是搭配题。
[详细解答] 此题考点为not．．．but的句型搭配，表示“不是…而是”符合句意，因此答案为A

B

[解析] 此题考查副词词义辨析。
[详细解答] 根据上下文结构和句意，此空需要一个关联性的状语，而且根据句义需要一个表示转折意义的副词，故选项B However为正确答案。 Generally意为“广泛地，普遍地，总的来说”，可作评述性状语；Possibly意为“可能地”，也可作评述性状语和一般修饰性状语；Likewise意为“同样地，照样地；又，也”，在句中可作关联性的状语，但不是转折意义的。

C

[解析] 此题考查感官动词的用法。
[详细解答] 此空涉及到某些感官动词如：see，hear， watch，feel等所接宾语结构。这些动词后可接复杂宾语结构，即 see，hear，watch，feel + sb．+do或 see，hear，watch，feel + sb．+doing，因此此题正确答案为选项C。

C

[解析] 本题为语义辨析题。
[详细解答] 首先可知此空需要一个副词，因此可排除B和D。Out of the question意为“不可能”，意义不合适；Probably意为“很可能地”，用在此处表示作者比较肯定的猜测。

A

[解析] 本题为语义辨析题。
[详细解答] 根据上下文可知，魔术家Houdini擅长“逃脱”，他可以轻易地打开锁头，从被锁处逃脱。因此此空的正确答案为A。

D

[解析] 本题是结构题，兼考先行词的用法。
[详细解答] 通过阅读上下文可知此处需要一个引导让步状语从句的连词，只有选项D符合。

C

[解析] 本题考查关联词的用法。
[详细解答] 根据句意，此处应填入表示方式的关系词表示“…如何”，因此答案C how符合句意，为正确答案。

D

[解析] 本题是语法题，考查同位语从句。
[详细解答] 同位语从句用that引导。

A

[解析] 本题考查过去分词的用法。
[详细解答] 过去分词invented为后置定语修饰前面的名词，表示以前发明的各种锁，因此，可排除B和D，C则表示过去分词的进行式，根据“．．．every type of lock ever．．．”，可排除C，因此A为正确答案。

B

[解析] 本题是搭配题。
[详细解答] in place of为固定搭配，表示“代替……位置”符合句意。

D

[解析] 此题为词义辨析题。
[详细解答] Bound是bind的过去式，意为“捆绑”。其它三词意义不符。

C

[解析] 此题为惯用语搭配题。
[详细解答] In an instant是固定搭配，意为“立刻，马上”。

C

[解析] 此题是搭配题。
[详细解答] 四个选项中动词charge一般不与of搭配使用。rid．．．of意为“除掉”，不符，deprive．．． of意为“剥夺……”，意义不符。选项C accuse和of搭配意为“指控…”，为正确答案。

D

[解析] 此题是逻辑推理题。
[详细解答] Mud和something是不可数名词，不符；像蜡一样的candle是不合逻辑的；因此只有选项D substance(物质)正确。

A

[解析] 此题为结构题。
[详细解答] 通过阅读本句可断定此空需要一个从属连词引导时间状语，四个选项只有A. as正确。

D

[解析] 此题是语义辨析题。
[详细解答] Overall是形容词，不符；All but意为“几乎，差不多”，意义不符；No longer意义不符。故只有altogether(总起来说)符合，故为正确答案。

A

[解析] 此题为语义辨析题，兼考固定搭配。
[详细解答] 根据上文意思。此句意为“他被铁链紧紧缚住并关进了一个空的木箱，”在A，B，C，D四个选项中A chain sb. /sth. up 表示“用链子等物束缚住某人或某物”符合句意，其它均无这种搭配，因此A为正确答案。

B

[解析] 此题考查先行词的用法。
[详细解答] 只有which才能用于介词后来引导定语从句。

A

[解析] 此题是语义辨析题。
[详细解答] 根据上文可知此空应为chest。

A

[解析] 此题是语义辨析题，兼考词义搭配。
[详细解答] 通过阅读上下文可知，Houdini被装进木桶扔进了海里，但他很快就逃了出来，当木桶被捞上来时，人们发现桶被打开了，捆在木桶外面的铁链子却被放到了桶里面，由此可知此空应选A brought up“把……弄上来”。

B

[解析] 美容师觉得作者的脸是一种挑战，这意味着_______。
[试题分析] 本题是推理判断题。
[详细解答] 从文中不难分析出，作者是个丑女人。脸丑，对于美容师来说，如何进行美化是一种挑战。 C、D两项可先排除。A项由于使用了repair一词，过分了，不能选。因此B项才是正确的。

A

[解析] 在第二段中，plump一词可由哪个词替换?
[试题分析] 本题是语义判断题。
[详细解答] 第二段描述了一个矮小，plump的女人， plump本义是“丰满的”，文中提到“But because she was so plump，when she sat on the stick it went deep in-to the ground and she couldn't pull it out．”说明此女人很重，因此选A项。D项stout指强壮的，胖的，用来修饰女人不雅。

D

[解析] 根据作者说法，她第一次参加舞会失败的主要原因是什么?
[试题分析] 本题是语义判断题。
[详细解答] 最后一段中作者谈到“Perhaps it was this that made nobody want to dance with me．”“指她未戴流行的diamante，而戴了sticking-plaster，所以她不时尚。这是作者认为第一次参加舞会失败的主要原因，所以选D项。

C

[解析] Dr．Causey说“就在我们后院，我们发现了最可爱的疾病。”他的意思是_____。
[试题分析] 本题是语义辨析题。
[详细解答] “就在后院”发现了疾病说明Dr． Causey夫妇身处病毒包围之中，因此C项正确。A项说法没有根据，B项不是Dr．Causey想说明的问题。D项则离题千里。

B

[解析] “病毒等着疾病”意思是_______。
[试题分析] 本题是语义测试题。
[详细解答] 从文中第四段“It may be that some viruses which presently reproduce in man without making him ill．．．”可以判断出，病毒在潜伏期不对人产生病害，因此选B项。

B

[解析] 作者引用巴西传说的用意是_______。
[试题分析] 本题是辨析题。
[详细解答] 前文有“viruses waiting for a disease”，说明此土地表面祥和，隐伏病害，因此作者用意是进一步阐明前述观点。

A

[解析] 为什么贵族们希望杀掉亨利?
[试题分析] 本题是语义判断题。
[详细解答] 根据文中第一段最后“who had lost somewhat of the power and prestige from the coming in of the new king．”可以得知，贵族们由于被亨利剥夺了权力，决定杀掉他，所以选A项。

C

[解析] 亨利国王是如何发现阴谋的?
[试题分析] 本题实际上是特定信息查寻题。
[详细解答] 第二段最后一句：“And they might have succeeded had not one of their own members betrayed them．”由此可以得知，由于贵族中有一人叛变，亨利国王得知了消息。

D

[解析] 作者对亨利国王的看法如何?
[试题分析] 本题是语义判断题。
[详细解答] 根据文中对亨利的评价，如“just and merciful”，“did not care to shed blood needlessly，”等，可以判断出作者对亨利的评价较好，但并无根据说他是最好的国王，因此D项正确。

C

[解析] 作者说趋势是向着_____。
[试题分析] 本题是特定信息查寻题。
[详细解答] 文中提到“The recent population trend has been a double one，toward both urbanization and suburbanization”，因此C项正确。

B

[解析] “Decentralization”最好解释为 _______。
[试题分析] 本题是特定信息查寻题。
[详细解答] 文中提到decentralization后，马上提出“The night of Americans from the central city to the suburbs．．．”因此选B项。

A

[解析] 最近人口趋势的一个方面是______。
[试题分析] 本题是语义判断题。
[详细解答] 文中最后提到东部及东中北部各州都在形成大城市群。B项意义正好与文中意思相反，城市要连为一体，而不是越来越远；C项意为将城市农村化，不正确；O项意为发展小城镇，也不对。因此选A项。

D

[解析] 作者认为青铜时代接替子石器时代，因为_____。
[试题分析] 本题是语义辨析题。
[详细解答] 文中有"one age gave way to another when the use of a new material exceeded in quantity that of its predecessor．”因此更多的青铜使用率是主要原因。

C

[解析] 作者认为在近期向“塑料及轻质金属时代”转变是_____。
[试题分析] 本题是语义判断题。
[详细解答] 本文结尾“This is still the Iron Age or rather the Steel Age．”清楚地表明了作者的态度，作者认为近期向“塑料及轻质金属时代”转变是不大可能的。

D

[解析] 最能体现本文观点的文章标题是 ______。
[试题分析] 本题考查对写作目的的了解。
[详细解答] A项，C项很容易先排除，B项容易混淆，但文章内容主要讨论的不是时代变迁，而是论证塑料的局限性，它不是这个时代的标志物质。所以选择D项才是正确的。

A

[解析] 下列陈述的哪个最能描述激光?
[试题分析] 考查学生对细节理解的能力。
[详细解答] 下列陈述最能描述激光：A刺激原子和分子发出光来的发明；B高能量状态下的原子；C破坏原子或分子的技术；D测定光波的器械。第一段中谈到：激光是辐射刺激性放射光扩大的首字母缩略词，而原子或分子被刺激而发射出来的光不同于自然发射的光。故A为正确选项。

B

[解析] 为什么汤尼斯早期的刺激性放射工作是用微波来进行的?
[试题分析] 考查学生细节阅读的能力。
[详细解答] 为什么汤尼斯早期的刺激性放射工作是用微波来进行的?A他对光的扩散不感兴趣；B和更长的波长一起使用更方便；C他的伙伴 Schawlow已经开始对激光的研究；D激光已经被开发。第三段第一，二句话表明：最初的成功人物是查尔斯H．汤尼斯，他在纽约的哥伦比亚大学(美)工作。没有用光来工作，他利用微波，因为它有更长的波长。他还建造叫做微波激射器的装置，为辐射刺激性放射的微波扩大。故应选B。

C

[解析] 他在哥伦比亚大学(美)的调查中，查尔斯·汤尼斯用以下的工作，除了______。
[试题分析] 考查学生理解细节的能力。
[详细解答] 他在哥伦比亚大学(美)的调查中，查尔斯·汤尼斯用以下的工作，除了：A刺激性放射；B微波；C光扩大；D微波激射器。同样参考第②题不难看出，应该选C。

C

[解析] 大约在哪一年，第一个微波激射器被建造了?
[试题分析] 考查学生对重点句的理解能力。
[详细解答] 大约在哪一年，第一个微波激射器被建造了：A 1917；B 1951；C 1953；D 1957。第三段第三句话：Although he thought of the key idea in 1951，the first maser was not completed until a couple of years lat-er. 尽管在1951年关键的想法已经产生，第一个微波激射器还是直到二年后完成。所以应该选C。

B

[解析] 为什么人们还在争论谁应该获得提出激光概念的荣誉?
[试题分析] 考查学生因果分析的能力。
[详细解答] 为什么人们还在争论谁应该获得提出激光概念的荣誉：A研究人员丢失了笔记本；B几个人同时发展了想法；C直到最近才有人为发展要求信用；D工作还不完全。前面我们说道，汤尼斯和阿瑟Sehawlow，然而几乎同时，类似的想法在戈登古尔德的头脑中结晶了。汤尼斯和Schawlow在科学报刊上发表了他们的想法，但是古尔德把理论归档了。所以，应该选B。