1. They have been living under the most appalling conditions for two years.
A.dreadful
B.bad
C.unpleasant
D.poor
A B C D
A
appalling 表示条件之差使人感到吃惊。dreadful有类似的意义。如：My financial situation is dreadful．此句改用appalling也是可以的。bad，unpleasant和poor都可以跟 condition搭配。因此可以说：They have been riving under bad conditions for two years. They have been living under unpleasant conditions for two years. They have been living under poor conditions for two years. 注意：appalling conditions蕴涵bad(或unpleasant或poor) conditions. 但反向的蕴涵是不成立的。用句通俗的话说，是appalling conditions必定是bad (或unpleasant或poor) conditions，但是，bad(或unpleasant或poor)conditions未必都是 appalling conditions。也就是说，appalling跟bad，unpleasant和poor在意义上存在着明显的差别。注意：如果用bad或poor替换appalling，生成的都是错误的句子。
2. I wasn't qualified for the job really but I got it anyhow.
A.besides
B.anyway
C.well
D.anymore
A B C D
B
anyhow的一种意思是：不管其他句子所说的，本命题为真。可以看出，该词用在该句中非常合适，因为I wasn't qualified for the job really是“不管其他句子所说的”，I got it 这个命题是真的。又如：I am coming anyhow，no matter what others say. 其中的no matter what others say是说：不管其他人怎么说。I am coming这个命题是真的。anyway在绝大多数情况中表达的意义跟anyhow都相同，因而二者常可替换。anyhow有一种意思是后面所说的支持前面所说的，在这一种意思上，它等于besides. Mother certainly won't let him stay with her and anyhow he wouldn't. 此处的anyhow可由besides替换。但练习题中的 anyhow不是这个意思。anyhow也可用来结束会话，这也是well的一个功能。如： Anyhow，thanks a lot，Bye bye. 但练习题中的anyhow不是用来结束会话的，因而不能由 well替换。
3. He achieved success through hard work.
A.reached
B.reaped
C.attained
D.took
A B C D
C
attain有通过努力取得了某种东西或达到某种状态的意思。如：He attained the position of minister. They were unable to attain their objectives. achieve的意思是通过努力取得或达到某种目标，意思跟attain很接近，因而可由后者替换。reached也有“达到”的意思，但它本身并不含“需要通过努力”，因而它不可替代achieved. 下面举一个reach用法的例子：The process of political change in South Africa has reached the stage where it is irreversible. reap是“收获，获得”的意思。The painting depicted a group of peasants reaping a harvest of fruits and vegetables. You'll soon begin to reap the benefits of being fitter. take也有“获得，取得”的意思，但它不能跟success搭配。
4. The standards set four years ago in Seoul will be far below the athletes' capabilities now.
A.capacities
B.strengths
C.possibilities
D.abilities
A B C D
D
capability：能力，力量。又如：Now we have the capability of defending our country. all thanks to our own efforts. The country has the capability to defeat any aggressor. ability：能力，本领。From each according to his abilities，to each according to his work. ability和 capability在意义上有相同的一面，因而在一定语境中可以互换。可以看出，ability和 capability在搭配上是有差别的，前者只可跟to搭配，但后者既可跟to又可跟of搭配。二者的形容词分别是able和capable：I ought to be able to live on my salary. She was perfectly capable of taking care of herself. 注意：capable只能跟of而不能跟to搭配。不难看出，词的意义不决定句法结构。strength：力量；优点。Their military strength has gone down because their air force has proved to be an effective force. 此句中的strength可由capacity替代而不改变句子的意义。possibility：可能性。
5. The army should have operated in conjunction with the fleet to raid the enemy's coast.
A.together
B.in succession
C.in alliance
D.in connection
A B C D
A
in conjunction with：与……共同(或协力)。together with具有相同的意思，用together代入后，所生成的也是一个在语法上正确的句子。in succession：接连发生，不跟with，如： He had missed five dinners in succession. in alliance with：结盟。They are now in a position to govern the state in alliance with either the Free Democrats or the Green Party. in connection with：与……一起；与……相关。13 men were questioned in connection with the murder.
6. His claims seem credible to many people.
A.workable
B.convincing
C.practical
D.reliable
A B C D
B
credible：可信的。convincing：可信的。That is the least convincing excuse that you could offer. convincing可替换credible而不改变句子的意思。workable：可行的，行得通的。 Your plan is workable. practical：实际的，现实的。He is weak in practical matters. reliable：靠得住的。John is a reliable man.
7. Jack is a diligent worker.
A.ambitious
B.lazy
C.hardworking
D.clever
A B C D
C
diligent：勤奋的，努力的。hardworking：勤奋的，努力的。Jack was hardworking and energetic. ambitious：雄心勃勃的；有野心的。Chris is so ambitious，so determined to do it all, lazy：懒惰的。I was too lazy to read music. clever：聪明的。She is beautiful and clever.
8. Society is now much more diverse than ever before.
A.colorful
B.attractive
C.flexible
D.varied
A B C D
D
diverse：多种多样的；不同的。varied：多种多样的；不同的。It is important that your diet is varied and balanced. colorful：多色的；绚丽的。People in this small town wear colorful clothes. attractive：迷人的；吸引人的。She is both attractive and intelligent. flexible：灵活的。 My schedule is flexible.
9. Their interpretation was faulty.
A.wrong
B.ambiguous
C.unclear
D.unbelievable
A B C D
A
faulty：有错误的；有毛病的。wrong：有错误的；有毛病的。Cheating is always wrong. ambiguous：歧义的；模棱两可的。This sentence is ambiguous. unclear：不清楚的。His itinerary is still unclear. unbelievable：不可信的。I find it unbelievable that people can accept this sort of behavior.
10. These old buildings are gorgeous.
A.ridiculous
B.lovely
C.magnificent
D.peculiar
A B C D
C
gorgeous：好极了；壮丽的。magnificent：壮丽的；宏伟的。There is a magnificent country house near the river．ridiculous：可笑的。It was an absolutely ridiculous decision．lovely：可爱的；美丽的。The girl is lovely．peculiar：奇特的；奇怪的。This house is peculiar in lots of ways．这些词都可替换，所生成的句子在语法上都是正确的。相比之下，magnificent最接近gorgeous。
11. Contact your doctor if the cough persists.
A.insists
B.perseveres
C.continues
D.resists
A B C D
C
persist：坚持；持续。continue：持续。She continued the work day after day．insist：坚持；坚持主张。My family insisted that I should not give in，but stay and fight．persevere：坚持。Despite the failure of his early experiments，the scientist persevered in his research．resist：反抗；顶住。The nation was able to resist the invasion. insist和persist在意义上并不完全相同。insist缺乏“持续”这个义项。persevere也缺少“持续”这个义项。因此，正确的选择是 continue。“坚持”与“持续”在意义上似乎很接近，但在语义上的差别是很明显的。“坚持”至少要求有生命的东西作主语，但“持续”就没有这个要求。
12. The powers of the European Commission to regulate competition 4n the Community are increasing.
A.fight
B.abolish
C.remove
D.control
A B C D
D
regulate：调整；控制。control：控制。She also had a temper，but she controlled it. fight：搏斗；战斗。More units to fight forest fires are planned. abolish：废除。The whole system should be abolished. remove：除去；消除。Most of her fears have been removed.
13. They scattered after dinner.
A.separated
B.fled
C.departed
D.spread
A B C D
A
scatter：分散；散布；消散。separate：分散；分离。We didn't separate until nightfall．flee：逃走；消失。The robbers tried to flee，but they were caught. depart：离开；出发。We are ready to depart. spread：展开；散布。The rumour quickly spread through the village. spread与scatter有相同的义项——“散布”。但此处只能是“分散”的意思。
14. From my standpoint, you know, this thing is just ridiculous.
A.position
B.point of view
C.knowledge
D.opinion
A B C D
B
standpoint：立场；观点。point of view：观点；看法。The novel is shown from the girl's point of view. position： 位置；立场。The union may shift its position on the question． knowledge：知识。To my knowledge，he owns three houses，and he may own more. opinion：看法；意见。In my opinion，this book is the best book on the subject. 虽然position也有“立场”的意思，但不能说from my position。同样地我们也不能说from my opinion。
15. The story was touching.
A.inspiring
B.boring
C.moving
D.frightening
A B C D
C
touching：动人的；感人的。moving：动人的；感人的。The beggar told her such a moving story that she almost wept. inspiring：鼓舞人心的。He made an inspiring speech. boring：令人厌烦的。Not only are mothers not paid but also most of their boring work is unnoticed． frightening：吓人的。He gave us a frightening，but believable account of his chlidhood．
第2部分：阅读判断 阅读下面这篇短文，短文后列出7个句子，请根据短文的内容对每个句子做出判断。 Rescue Platform In the aftermath of the terrorist attacks on the World Trade Center, security experts are trying to develop new ways of rescuing people from burning skyscrapers. One idea is a platform capable of flying vertically and hovering in the air like a helicopter. The platform would rise up and down alongside a skyscraper and pick up people trapped in high stories. The idea for the vertical takeoff platform was hatched more than ten years ago by a Russian aerospace engineer, David Metreveli, who has since moved to Israel. Metreveli's design, called the Eagle, calls for two jet engines that turn four large horizontal propellers. The spinning of the propellers generates the necessary lift, or upward force, to raise the platform. The more power is supplied to the propellers, the higher the platform rises. Moving the platform sideways involves applying differing amounts of power to each propeller. Helicopters are now used in some cases to get people out of burning buildings. Escape baskets slung from them dangle beside the building for people to climb into. Unfortunately, the baskets cannot reach every floor of a building because the ropes from which they hang become unstable beyond a certain length. So far, Metreveli has built a small-scale model of the Eagle to test his idea. In the wake of September 11, he has been able to secure enough funding to start building a larger, 4-meter by 4- meter prototype, which he calls the Eaglet.
1. A rescue platform called the Eagle is capable of moving vertically but not sideways.
A.Right
B.Wrong
C.Not mentioned
A B C
B
本题给出的信息是错误的。第二段说到，救生平台既可垂直升降，也可侧向移动。
2. The four propellers are fitted horizontally to the Eagle.
A.Right
B.Wrong
C.Not mentioned
A B C
A
本题给出的信息是正确的。根据在第二段的第二句：Metreveli's design，called the Eagle，calls for two jet engines that turn four large horizontal propellers。句中的horizontal propellers指水平方向旋转的螺旋推进器。
3. With the help of jet engines, the Eagle can fly at a speed of 100 miles an hour.
A.Right
B.Wrong
C.Not mentioned
A B C
C
文章没有提到救生平台移动的速度。
4. In the third paragraph, the word helicopter refers to the Eagle.
5. The more jet engines are fitted to the propellers, the more people the platform can carry.
A.Right
B.Wrong
C.Not mentioned
A B C
C
文章没有提供“救生平台动力越大，载人越多”这一信息，只是在第二段倒数第二句说： The more power is supplied to the propellers，the higher the platform rises。
6. In the wake of September 11, Mr. Metreveli has secured enough funding to build up a small scale model of the Eagle to test his idea.
A.Right
B.Wrong
C.Not mentioned
A B C
B
9·11事件之后，Metreveli拿到的是建造a larger，4-meter by 4-meter prototype 的经费，而不是建造a small-scale model of the Eagle的经费。
7. Mr. Metreveli is designing for Israel a more advanced form of rescue platform than the Eagle or the Eaglet.
A.Right
B.Wrong
C.Not mentioned
A B C
C
文章没有提供这方面的信息。
第3部分：概括大意与完成句子 阅读下面这篇短文，短文后有2项测试任务；(1)第23～26题要求．从所给的6个选项中为第2～5段每段选择1个正确的小标题；(2)第27～30题要求从所给的6个选项中选择4个正确选项，分别完成每个句子。 LED Lighting 1 An accidental discovery announced recently has taken LED lighting to a new level, suggesting it could soon offer a cheaper, longer-lasting alternative to the traditional light bulb. The breakthrough adds to a growing trend that is likely to eventually make Thomas Edison's bright invention obsolete. LEDs are already used in traffic lights, flashlights, and architectural lighting. They are flexible and operate less expensively than traditional lighting. 2 Michael Bowers, a graduate student2 at Vanderbilt University, was just trying to make really small quantum dots, which are crystals generally only a few nanometers big. Quantum dots contain anywhere from 100 to 1,000 electrons. They're easily excited bundles of energy, and the smaller they are, the more excited they get. Each dot in Bowers' particular batch was exceptionally small, containing only 33 or 34 pairs of atoms. 3 When you shine a light on quantum dots or apply electricity to them, they react by producing their own light, normally a bright, vibrant color. But when Bowers shined a laser on his batch of dots, something unexpected happened. He was surprised when a white glow covered the table. The quantum dots were supposed to emit blue light, but instead they were giving off a beautiful white glow. 4 Then Bowers and another student got the idea to stir the dots into polyurethane and coat a blue LED light bulb with the mix. The lumpy bulb wasn't pretty, but it produced white light similar to a regular light bulb. 5 LEDs produce twice as much light as a regular 60 watt bulb and burn for over 50,000 hours. The Department of Energy estimates LED lighting could reduce U. S. energy consumption for lighting by 29 percent by 2025. LEDs don't emit heat, so they're also more energy efficient. And they're much harder to break. 6 Quantum dot mixtures could be painted on just about anything and electrically excited to produce a rainbow of colors, including white. The main light source of the future will almost surely not be a bulb. It might be a table, a wall, or even a fork.
1. Paragraph 1 ______ A LED Lighting Is Not Mature B LED Lighting Will Replace Traditional Lighting C Almost Everything Could Be the Main Light Source in the Future D LED Lighting Has Many Advantages E Bowers Made an Unexpected Discovery F LED Light Bulbs Look Lumpy
第五段列举了应用LED照明的不少优点，如强亮度、经久耐用、低能量消耗、不易碎等。选项D的“LED lighting has many advantages”概括了本段的大意，所以是答案。
4. Paragraph 6 ______
C
由于有了量子点混合剂涂料，几乎任何物体都能用于照明。这是本段的中心思想。所以，C是答案。
5. Unlike traditional lighting, LEDs do not give out heat so ______. A traditional lighting is less durable and dearer B a laser excited the quantum dots C America adopted LEDs D graduate students work hard E quantum dot mixtures are magic F it is more efficient
F
题干涉及的内容在第五段可以找到，有关的句子是：“LEDs don't emit heat，so they're also more energy efficient”，很明显，F是答案。
6. Edison's bright invention is likely to be outdated because ______.
A
选A的依据是第一段的第一、第二句。
7. Something unexpected happened during Bower's experiment when ______.
B
与题干有关的内容在第三段第二、第三句中可以找到。根据这两句表达的意思，B是答案。
8. Over one quarter of energy consumption for lighting could be saved by 2025 if ______.
C
题干的“29 percent of energy consumption for lighting could be saved by 2025”可在第五段第二句中找到。题干配上选项C后表达的意思与该句的意思相符，所以，C是答案。
第一篇 Invisibility Ring Scientists can't yet make an invisibility cloak like the one that Harry Potter uses. But, for the first time, they've constructed a simple cloaking device that makes itself and something placed inside it invisible to microwaves. When a person "sees" an object, his or her eye senses many different waves of visible light as they bounce off the object. The eye and brain then work together to organize these sensations and reconstruct the object's original shape. So, to make an object invisible, scientists have to keep waves from bouncing off it. And they have to make sure the object casts no shadow. Otherwise, the absence of reflected light on one side would give the object away. Invisibility isn't possible yet with waves of light that the human eye can see. But it is now possible with microwaves. Like visible light, microwaves are a form of radiant energy. They are part of the electromagnetic spectrum, which also includes radio waves, infrared light, ultraviolet rays, X rays, and gamma rays. The wavelengths of microwaves are shorter than those of radio waves but longer than those of visible light. The scientists' new "invisibility device" is the size of a drink coaster and shaped like a ring. The ring is made of a special material with unusual ability. When microwaves strike the ring, very few bounce off it. Instead, they pass through the ring, which bends the waves all the way around until they reach the opposite side. The waves then return to their original paths. To a detector set up to receive microwaves on the other side of the ring, it looks as if the waves never changed their paths -- as if there were no object in the way ! So, the ring is effectively invisible. When the researchers put a small copper loop inside the ring, it, too, is nearly invisible. However, the cloaking device and anything inside it do cast a pale shadow. And the device works only for microwaves, not for visible light or any kind of electromagnetic radiation. So, Harry Potter's invisibility cloak doesn't have any real competition yet.
1. Harry Potter is mentioned in the passage, because scientists
A.can now make an invisible cloak of the same kind as he uses.
B.try to make an invisible cloak of the same kind as he uses.
C.try to invent a device similar in idea to the invisible cloak he uses.
D.know that it is possible to make an invisible cloak of the same kind.
A.Their wavelengths are shorter than those of visible light.
B.Their wavelengths are longer than those of visible light.
C.They are different from visible light as they are a kind of radiant energy.
D.They axe visible to the human eye.
A B C D
B
第三段最后一句中告诉我们，A是错误选择，B是正确选择。该段第三句说，微波与可见光一样都是一种辐射能，所以C的说法是错误的，不能选择；根据该段第一句：with waves of light that the human eye can see和第三句：Like visible light，可以得知D是错误的说法，也不能选择。
3. What is NOT true of the invisibility device?
A.It is made of a special material with unusual ability.
B.Microwaves bounce off it when they strike it.
C.Microwaves pass through it when they strike it.
D.It bends the microwaves all the way around until they reach the opposite side.
A B C D
B
第四段第三句说，当微波到达装置表面时，very few bounce off it。very few是几乎没有的意思，所以选择B。其他选择所述内容都可以很容易在该段中找到。
4. What does the word "coaster" mean in the passage?
A.A disk or plate placed under a drinking glass to protect a table top.
5. Harry Potter's invisibility cloak doesn't have any real competition yet, because
A.scientists have not found out how his cloak works.
B.the cloaking device is a total failure.
C.the cloaking device works only for microwaves.
D.the cloaking device works only for visible light.
A B C D
C
A句在短文中没有提到；按文章的内容B不是正确的说法；文章最后一段说，And the device works only for microwaves，not for visible light，所以C是正确选择。
第二篇 Japanese Car Keeps Watch for Drunk Drivers A concept car developed by Japanese Company Nissan has a breathalyzer-like detection system and other instruments that could help keep drunk or over-tired drivers off the road. The car's sensors check odors inside the car and monitor a driver's sweat for traces of alcohol. An in-car computer system can issue an alert or even leek up the ignition system if the driver seems over-the-limit. The air odor sensors are fixed firmly and deeply in the driver and passenger seats, while a detector in the gear-shift knob measures perspiration from the driver's palm. Other carmakers have developed similar detection systems. For example, Sweden's Volvo has developed a breathalyzer attached to a car's seat belt that drivers must blow into before the engine will start. Nissan's new concept vehicle also includes a dashboard-mounted camera that tracks a drivers alertness by monitoring theft eyes. It will sound an alarm and issue a spoken warning in Japanese or English if it judges that the driver needs to pull over and rest. The car technology is still in development, but general manager Kazuhiro Doi says the combination of different detection systems should improve the overall effectiveness of the technology. "For example, if the gear-shift sensor was bypassed by a passenger using it instead of the driver, the facial recognition system would still be used," Doi says. Nissan has no specific timetable for marketing the system, but aims to use technology to cut the number of fatalities involving its vehicles to half 1995 levels by 2015. The car's seat belt can also tighten if drowsiness is detected, while an external camera checks that the car is keeping to its lane properly. However, Doi admits that some of the technology, such as the alcohol odor sensor, should be improved. "If you drink one beer, it's going to register, so we need to study what's the appropriate level for the system to activate," he says. In the UK, some research groups are using similar advanced techniques to understand driver behavior and the effectiveness of different road designs.
1. Which of the following statements is NOT true of the Japanese concept car?
A.It has a sensor system that could issue a warning if the driver is drank.
B.It has sensors that detect traces of alcohol inside the car.
C.It has sensors locked up in the ignition system.
5. Which of the following is NOT mentioned in Paragraph 6?
A.An external camera checks that the car is going properly.
B.The car will automatically keep to its lane.
C.The seat belt will tighten when the driver is found drowsy.
D.The technology of the alcohol odor sensor should be improved.
A B C D
B
选项A、C、D在短文第六段都能找到，但是却找不到选项B所表达的意思。
第三篇 Winged Robot Learns to Fly Learning how to fly took nature millions of years of trial and error --but a winged robot has cracked it in only a few hours, using the same evolutionary principles. Krister Wolff and Peter Nordin of Chalmers University of Technology (CUT) in Gothenburg, Sweden, built a winged robot and set about testing whether it could learn to fly by itself, without any pre-programmed data on what flapping is or how to do it. To begin with, the robot just twitched and jerked erratically. But, gradually, it made movements that gained height. At first, it cheated -- simply standing on its wing tips was one early short cut. After three hours, however, the robot abandoned such methods in favor of a more effective flapping technique, where it rotated its wings through 90 degrees and raised them before twisting them back to the horizontal and pushing down. "This tells us that this kind of evolution is capable of coming up with flying motion," says Peter Bentley, who works on evolutionary computing at University College London. But while the robot had worked out how best to produce lift, it was not about to take off. "There's only so much that evolution can do," Bentley says. "This thing is never going to fly because the motors will never have the strength to do it," he says. The robot had metre-long wings made from balsa wood and covered with a light plastic film. Small motors on the robot let it move its wings forwards or backwards, up or down or twist them in either direction. The team attached the robot to two vertical rods, so it could slide up and down. At the start of a test, the robot was suspended by an elastic band. A movement detector measured how much lift, if any, the robot produced for any given movement. A computer program fed the robot random instructions, at the rate of 20 per second, to test its flapping abilities. Each instruction told the robot either to do nothing or to move the wings slightly in the various directions. Feedback from the movement detector let the program work out which sets of instructions were best at producing lift. The most successful ones were paired up and "offspring" sets of instructions were generated by swapping instructions randomly between successful pairs. These next-generation instructions were then sent to the robot and evaluated before breeding a new generation, and the process was repeated.
1. Which of the following is NOT true of what is mentioned about the winged robot in the second paragraph?
A.The two professors of CUT built the winged robot.
B.The two professors of CUT tested whether the winged robot could learn to fly.
C.The two professors of CUT programmed the data on how the robot flapped its wings.
D.The two professors of CUT tried to find out if the robot could fly by itself.
第5部分：补全短文 阅读下面的短文，文章中有5处空白，文章后面有6组文字，请根据文章的内容选择5组文字，将其分别放回文章原有位置，以恢复文章原貌。 The Magic of Sound Music is one of the most beautiful forms of artistic expressions ever invented. In movies and plays, music has an added function: it not only moves people but also can shock people. Is it true that an ordinary musical instrument can be so powerful? Our eardrums can withstand sound within 20 to 80 decibels. Once sound exceeds this limit, even beautiful music will become ear-splitting noise and harm health. A strong blast of high sound can twist and break a solid iron sheet. 1 The noise from a plane's engine is over 140 decibels. However, the sound of a flute is at most a few decibels. 2 It has been proven that people who have worked in an environment with a high sound intensity for a long time suffer varying degrees of heart disease or altered brain waves. In movies, sometimes the hero can produce a sound that ordinary people can't hear and only those who have the same ability can feel. In nature, there is actually sound that is beyond our hearing. In physics, the sound that exceeds 20,000 Hz is called ultrasonic. 3 It does no harm to health. Sound less than 20 Hz is called infrasonic waves. When we move, the air will vibrate. 4 As the frequency of infrasonic waves is close to that of people's internal organs, infrasonic wave may cause resonance in human bodies. As a result, people's vision may weaken and internal organs may rupture. However, whether an infrasonic wave can be used as a weapon depends on its intensity. If its intensity is very low, it won't damage internal organs or a person's health. 5 When wind blows at a force of 3 or 4 over the sea6, it will produce infrasonic waves of several decibels. Only typhoons can produce infrasonic waves of over 100 decibels. At present, scientists can only produce infrasonic weapons in the lab with the help of advanced scientific tools and powerful electric power. A. High sound of 150 decibels can kill a healthy rat. B. The vibration of air can produce infrasonic waves. C. We cannot play high-pitched music with ordinary musical instruments. D. If the intensity of infrasonic wave exceeds 160 decibels, it is extremely harmful. E. Dolphins, whales and bats can make such high-frequency sound. F. Therefore, the sound of ordinary musical instruments cannot harm your health.
1.
A
本段要说明，音量超过80分贝，即使是美妙的音乐，对人体也有害。“空1”前面的句子说：一阵高分贝的强烈的冲击波能使一块铁板扭曲和破裂。“空1”的句子应该与高分贝的声音的危害性有关。选项A的“High sound of 150 decibels can kill a healthy rat”是高分贝声音的危害性的又一个例子。从“空1”位置上隐去的句子必是此句。A是答案。
“空4”前面的两个句子是“Sound less than 20 Hz is called infrasonic waves．When we move，the air will vibrate”，主题是infrasonic waves。选项B (“The vibration of air can produce infrasonic waves．”)的句子中，有vibration，air 和infrasonic waves，它们与上述两句子的用词重复，说明内容联系十分紧密，而且意思连贯，所以，B是答案。
第6部分：完形填空 阅读下面的短文，文中有15处空白，每处空白给出了4个选项，请根据短文的内容从4个选项中选择1个最佳答案。 Singing Alarms Could Save the Blind If you cannot see, you may not be able to find your way out of a burning building -- and that could be fatal. A company in Leeds could change all that 1 directional sound alarms capable of guiding you to the exit. Sound Alert, a company 2 the University of Leeds, is installing the alarms in a residential home for 3 people in Sommerset and a resource centre for the blind in Cumbria. 4 produce a wide range of frequencies that enable the brain to determine where the 5 is coming from. Deborah Withington of Sound Alert says that the alarms use most of the frequencies that can be 6 by humans. "It is a burst of white noise 7 people say sounds like static on the radio," she says. "Its life-saving potential is great." She conducted an experiment in which people were filmed by thermal-imaging cameras trying to find their way out of a large 8 room. It 9 them nearly four minutes to find the door 10 a sound alarm, but only 15 seconds with one. Withington studies how the brain 11 sounds at the university. She says that the 12 of a wide band of frequencies can be pinpointed more easily than the source of a narrow band. Alarms 13 the same concept have already been installed on emergency vehicles. The alarms will also include rising or falling frequencies to indicate whether people should go up 14 down stairs. They were 15 with the aid of a large grant from British Nuclear Fuels.
句子中的more... than表示该句是对两样事物的对比。than后面是the source of a narrow band，这里的narrow和前半句的wide形成反比，从上下文中可以看出，the source of a narrow band of(frequencies)是和the source of a wide band of frequencies形成对比。
13.
A.basis on
B.base on
C.basing on
D.based on
A B C D
D
这个句子有主语alarms，有谓语have been installed，这里应填入动词的分词形式。be based on是常用的搭配，所以，应选择动词的过去分词形式。选项A的basis是名词，明显是错的。
14.
A.or
B.and
C.but
D.otherwise
A B C D
A
根据上半句中的rising or falling frequencies，这里应填入or，与上半句表达的意思相一致。音频升高表示上楼，音频降低表示下楼。
深色：已答题 浅色：未答题