How do you account for your absence from the class last Thursday?
B examine
D expand
B showed
B carried
D pushed
B rarely
D only
The nursery is bright and cheerful.
A pleasant
[正确答案] B clean
The city has decided to do away with all the old buildings in its center.
B set up
D paint
B surprised
D interested
The great changes of the city astonished every visitor to that city
B surprised
D interested
They didn't realize how serious the problem was.
B forget
D remember
What were the consequences of the decision she had made?
B results
D bases
The last few weeks have been enjoyable
B near
D several
He is certain that the dictionary is just what I want.
B angry
D worried
B judgement
D event
B hateful
D thankful
About one quarter of the workers in the country are employed in factories
B fourth
D fifteenth
It's in the Cards
In recent years, more and more people have been paying for things with credit cards. There are now 565 million credit cards worldwide, but it doesn't stop there. Debit cards （电子记账卡） are being issued by banks, and store cards are being offered by many department stores. Bills and coins are gradually being replaced by "plastic money." In many countries, phone cards have been introduced for people to use in pay phones. In addition, cards made of paper are being replaced by plastic ones by many organizations and clubs. For example, if you belong to a sports club, your membership card may well be made of plastic.
How safe is the plastic used to make these cards, though? Until now, most cards have been made from a plastic called PVC. While PVC is being produced, harmful chemicals are released into the atmosphere. One of the most dangerous chemicals that is released is dioxin, which is known to cause cancer in humans. A further problem is that, when a PVC card is thrown away, it is not biodegradable; this means that it does not "break down" and cannot be recycled. Obviously, recycling reduces pollution of the environment.
The executive director of the environmental organization and charity Greenpeace, Peter Melchett, says, "If there is a solution to this - and an alternative then it would be madness not to use it." Greenpeace has found a solution and an alternative. Their new credit card is made entirely from a biodegradable plastic that uses plants. The card breaks down in around three months in soil; in this way, it is recycled. In contrast, a PVC card lasts for centuries Greenpeace hopes that many organizations will soon follow their example and issue cards that do not threaten the public health.
16 Fewer and fewer credit cards are made of paper,
A Right B Wrong C Not mentioned
17 The plastic used in credit cards is fairly safe.
A Right B Wrong C Not mentioned
18 The cards that are wildly used now are credit cards.
A Right B Wrong C Not mentioned
19 Most credit cards are biodegradable
A Right B Wrong C Not mentioned
20 The new credit card that is being introduced by Greenpeace is not made of plastic.
A Right B Wrong C Not mentioned
21 The new Greenpeace card breaks down in a few months
A Right B Wrong C Not mentioned
22 Greenpeace cards are widely used in many organizations now.
A Right B Wrong C Not mentioned
1. Children enjoy shouting at a high wall and hearing the sound come back to them. These sounds are called echoes （回声）. Echoes have given us a number of valuable tools.
2. Echo sounding devices were early used in making maps of the ocean floor. Sounds or ultrasonic （超声的） sounds make good tools for determining how deep the water is under ships. Sometimes echoes from ultrasonic distance finding devices were prevented from working by fish swimming past or by the presence of large objects. So ultrasonic devices have been replaced by other tools.
3. Radar is now a familiar tool. Like many others it was an unexpected discovery. It was first observed by two researchers, who were studying sound communication. They were sending signals from a station on one side of a river in
D IC. to a vehicle across the river. They discovered that their signals were stopped by passing ships. They recognized the importance of this discovery at once.
4. All this was of course just a start, from which our present radar has developed. The word "radar," in fact, gets its name from the term "radio detection （检测） and ranging." "Ranging" is the term for detection of the distance between an object and the radar set. Today, in our scientific age, it would be difficult to manage without radar.
5. One of the many uses of radar is as a speed control device on highways. When a person in an automobile is driving faster than the speed limit, radar will show this clearly and the traffic police can take measures to stop him.
6. A pilot cannot fly a plane by sight alone. Many conditions such as flying at night and landing in dense fog require the pilot to use radar. Human eyes are not very good at determining speeds of approaching objects, but radar can show the pilot how fast nearby planes are moving.
23 Paragraph 2 .
24 Paragraph 3 .
25 Paragraph 4 .
26 Paragraph 5 .
A Study of Sound
B Highway Police
C Working Principles
D Early Use of "Radar"
E Useful Tools
F Discovery by Chance
27 Echo-sounding devices were early used to .
28 Ultrasonic device were used to .
29 Police use radar on highways to .
30 Radar helps pilots to .
A detect nearby objects
B determine the depth of the ocean water
C decide how fast you drive
D stop passing ships
E map the ocean floor
F observe water flow
第一篇 Denny
His nickname is Denny. He weighs 400 pounds; he is fearless and he never goes to sleep on the job. An ideal security guard? For many situations he may be. And if he's so good that you wish you had a dozen like him, just place your order. Denny is a robot guard.
Denny can detect, within a 150-foot radius, the presence of anything or anybody that shouldn't be there. Its swiveling （旋转） head contains microwave and infrared sensors that can detect people as well as smoke. In future editions the head will also contain sensors that can smell the weak smell of a human body.
A high-resolution TV camera in Denny's head is on at all time. When something unexpected comes into view, the TV transmitter switches on. Thus the human overseer （看管人） in the control center sees the sudden appearance of a picture on the monitor screen. At the same time the picture is automatically videotaped.
Normal speed of the robot guards is about one mile an hour, and they can even talk: 'you have been detected,' warns the voice from the clever guard. Denny is designed to patrol corridors and other areas after lock-down hours （of course, he can work round the clock when necessary）, not to move among people. If, say, a prisoner does get near the corridor where he should not be, it'll immediately tell its base station by radio.
Denny has understandable limitations. He can't open doors or watch stairs, for example, or distinguish friend from enemy. Thus he will have to go about unarmed. And he won't be able to replace human security guards where people move about freely.
31 Denny is a robot guard, who
A has mechanical anus and legs.
B has microwave and infrared sensors.
C has a built-in computer.
D depends on his built-in radio for distinguishing a friend from an enemy.
32 Which of the following pieces of equipment is NOT mentioned as part of the robot according to the passages?
A The TV camera.
B The radio transmitter, C The infrared sensor,
D The audio tape-recorder.
33 Which of the following statements is true?
A Only strong smell can be detected by Denny.
B Denny is able to replace human security guards where people move about freely.
C A high-resolution IV camera in Denny's head is on and off automatically.
D Denny cannot open doors or watch stairs.
34 Why does Denny have to go unarmed?
A He cannot tell an enemy from a friend.
B The price would be very high if it were armed,
C He does not know how to use a weapon.
D It is unlikely that he will be attacked by a human enemy.
35 After reading this passages you probably have got the impression that
A Denny moves quite fast.
B Denny moves both in corridors and up and down stairs.
C Denny's voice warns at regular intervals while patrolling.
D Denny moves quite slowly.
第二篇 Stone Hill Mall
Stone Hill Mall has fewer large department stores than most malls but, instead, features more than 100 small specialty shops, while the few that are not used yet will be filled as soon as the mall's owners find proprietors （业主） who fit the mall's image.
One thing that makes Stone Hill Mall popular was that all of the stores remain open from
Besides, the air-conditioning system makes sure a comfortable inside temperature of 25 degrees centigrade no matter what the weather is like outside, and in addition to its three beautiful fountains, the mall has a quiet garden area with comfortable benches and chairs for shoppers who have become tired.
One complaint about Stone Hill Mall is that it is located outside the city, but there is a regular bus service between the mall, and the city centre. A further complaint might he that, although the mall is surrounded by trees to ma it with the scenery, it will be some years before these can effectively make the main buildings and the vast parking lot a part of the area around.
36 Stone Hill Mall is different from other malls because it has
A more large department stores.
B more empty space to rent.
C many shops selling special goods.
D shops selling expensive goods.
37 Stone Hill Mall is popular with shoppers mainly because of its
A long business hours.
B attractive restaurants.
C children's stores.
D entertainment facilities.
38 What makes Stone Hill Mall a more favourable shopping place is
A the prices in the shops.
B the weather in the area.
C the childcare facilities,
D the conditions inside the mall.
39 It is implied in the passage that the writer takes a（n） attitude towards the mall.
A critical
B indifferent
C fair
D one-sided
40 The rnain purpose of the passage is to
A compare Stone Hill Mall with other shopping centres.
B introduce the unique features of the mall.
C discuss its strengths and weaknesses.
D draw attention to the inadequacies of shopping centres.
第三篇 World Flight
Pilot Linda Finch will take off on March 17, 1997 to repeat one of the most famous flights of all time－Amelia Earhart's 1937 round-the-world journey.
The original flight did not end well. In July 1937, near the end of her trip, Earhart's Lockheed 10E airplane suddenly disappeared over the Pacific Ocean.
Finch hopes that this time she will have a better chance. Though she is flying an exact copy of Ear, art's plane, she will have the latest navigation, communications, and weather-tracking tools.
'Amelia had to navigate by the stars,' an impossible task on a cloudy night, Finch says. Finch, in contrast, will be able to know her exact location－even while flying over the ocean－using the-Global Positioning system （GPS）. This ring of orbiting satellites continuously transmits radio signals to Earth. To calculate her position, Finch's GPS receiver will measure how long it takes radio signals transmitted from various satellites to reach the plane. Knowing her location is especially important when flying around the equator, as Earhart did. In that region, thunderstorms are dangerous. 'I can't fly through thunderstorms,' says Finch, because, 'the winds 'moving up and down could break the plane.' And Finch will not be able to fly above the storms because her airplane Electra is not pressurized. That means the plane is not equipped to pump in outside air to make breathing easier at high altitudes. So Finch will fly around storms－or wait for them to pass. But unlike Earhart, Finch will know what weather is ahead. She will receive regular reports via radar from Naval stations around the globe.
Finch will also be in communication with lots of ordinary people——maybe even with you! Through her computer and a satellite link, she will receive and transmit email messages. Finch hopes to touch down at her final stop in Honolulu, Hawaii, in May 1997.
41 What happened to Earhart?
A She was successful in her world flight.
B Her airplane was blown away by the strong winds over the equator.
C She lost her way after failing in communicating with the Naval station around the equator.
D Her airplane disappeared while flying over the Pacific Ocean.
42 What differences do you find between Finch's airplane and Earhart's?
A Finch's airplane is a jet plane while Earhart's was not.
B Finch's airplane is equipped with the modern navigation and weather-tracking systems.
C No differences have been found. Finch's airplane is an exact copy Of Earhart's in every aspect.
D Finch's airplane is an improved version of Earhart's in flying speed and altitude.
43 What would happen if Finch tried to fly through the storms over the equator?
A Her plane would lose its communication with the Naval stations.
B She could not stand the plane moving up and down strongly in the storms.
C The strong storms would tear her plane apart.
D She might not be able to control her plane.
44 How do you interpret the sentence 'her airplane Electra is not pressurized' （Para.4）?
A The plane exerts pressure on the pilot.
B The plane is not installed with a piece of equipment to pump in outside air.
C The plane cannot keep stable in the storms because the air pressure is not high enough.
D The pilot does not feel comfortable under pressure.
45 Which of the following statements is true?
A Finch can communicate with anyone anywhere in the world.
B Finch will be in communication with the Naval stations around the globe only.
C Besides the Naval stations, Finch will also be allowed to communicate with her family, but not her friends.
D Finch will be allowed to communicate with anyone while flying over the Pacific Ocean.
Little Lady Starts Big War
Harriet Beecher Stowe had poured her heart into her anti-slavery book "Uncle
Tom's Cabin." （46） The publisher was so doubtful that he wanted her to split the publishing costs with him, and all she hoped was that it would make enough money for her to buy a new silk dress.
But when the first 5,000 copies were printed in 1852. They sold out in two days. In a year the book had sold 300,000 copies in the
Harriet did have strong religious views against slavery （When asked how she came to write the book, she replied: "God wrote it."）, and she tried to convince people slavery was wrong, so perhaps the book could be considered propaganda. （48）
Though she was born in Connecticut in 1832, as a young woman she moved to Cincinnati, Ohio, when her father accepted the presidency of newly founded Lane Theological Seminary （神学院）.
Its vast influence strengthened the anti-slavery movement and angered defenders of the slave system. （50）
In fact, when Abraham Lincoln met Harriet at the White House during the Civil
War, he said, "So, this is the little lady who started this big war."
A She had read a lot about the slavery system.
B Today some historians （历史学家） think that it helped bring on the American Civil War.
C But if so, it was true propaganda, because it accurately described the evils of slavery.
D For a while it outsold every book in the world, except the Bible.
E But neither she nor her first publisher thought it would be a big success.
F She lived 18 years in
Tree
Trees are useful to man in three very important ways: they provide him with wood and other products; they give him shade; and they help （51） drought and floods.
Unfortunately, in many parts of the world, man has not （52） that the third of these services is the most important. In his eagerness （~） to draw quick profit from the trees, he has cut them down in large （53）, only to find that with the trees used he has lost the best friends he had. Two thousand years ago a rich and powerful country cut down its " （54） to build warships with which to gain itself an empire. It gained the empire but without its trees, its soil became hard and （55）. When the empire fell to pieces, the home country found （56） faced with floods and starvation.
Even where a government realizes the （57） of a rich supply of trees, it is difficult for it to persuade the villager to see this. The villager wants wood to （58） his food with; and he can earn money （59） making charcoal （木炭） or selling wood to the townsman. He is usually too lazy or （60） careless to plant and look after new trees. So, unless the government has a good （61） of control, or can educate the people, the forests will slowly disappear.
This does not only （62） that the villagers' sons and grandsons have fewer trees. The results are even more （63）. For where there are trees, their roots break up the soil allowing the rain to sink in and also bind the soil, thus preventing the （64） from being washed away easily. But where there are no trees, the rain falls on hard ground and flows away on the surface, causing floods and carrying away with it the top-soil, in （65） crops grow so well. When all the top-soil is gone, nothing remains but worthless desert.
为什么有些人可以同时做两份工