Electronic waste, or e-waste, refers to electronic products that are no longer usable. This can include TVs, cell phones and computers and other office electronics, electronic toys and videos machines. Today, the average turnover（更换）rate for a computer in the United States is every two years, according to the environmental group, Greenpeace.
The group's Dai Yun says e-waste is a global problem. "The electronic industry is one of the fastest growing industries in the world. The high speed of growth in this industry means more and more electronic products are being wasted and thrown away. If no one decides to retrieve the old products and process them properly, the electronic waste will sweep over the earth like the huge wave behind me and pollute the Earth seriously."
Greenpeace works out that 20 to 50 million tons of e-waste are produced globally each year. The components（部件）in many electronic products contain harmful chemicals that pollute ground water and the environment.
At present , the U.S. has no federal law for the disposal (处理) of e-waste although a few states have e-waste recycling programs in place, but there is no law. The U.S. exports much of its e-waste to third world countries, such as India and China, where workers took apart computers for valuable parts, hoping to sell them for money. But harmful wastes expert, Dr. Bakul Rao, says that's a dangerous practice. "From now on, the recyclers are not very educated. All they know is they can retrieve copper or gold out of it. So, the easiest way to do that is leach (过滤) it out in an acid or burn it off to retrieve it. So, that's where they don't know how to deal with it, neither do they have any health systems in place. So, their exposure is more."
57. What does the underlined word "retrieve" (paragraph 2) probably mean?
A. look into B. take apart C. get back D. throw away
58. Which of the following statements is true according to the passage？
A. The U.S. has strict national laws for dealing with e-waste.
B. Third world countries import e-waste to get valuable parts, which is a safe and easy way to make money.
C. The way uneducated workers deal with old computers does great harm to the environment as well as to their own health.
D. More and more electronic waste is being wasted and thrown away mainly because of
people's bad habits.
59. What is the purpose of writing the passage?
A. To attract more people's attention to e-waste.
B. To call on people not to throw away e-waste anywhere.
C. To tell people what e-waste is and how to deal with it well.
D. To warn people to break away from the electronic industry.
60. The next paragraph probably concerns_______.
A. how to deal with e-waste properly
B. how to protect ourselves from harm by e-waste
C. How to slow down the development in the electronic industry
D. how to make full use of e-waste
America is a country on the move. In unheardof numbers, people of all ages are exercising their way to better health. According to the latest figures, 4 percent of American adults exercise regularly-up 12 percent from just two years ago and more than double the figure of 25 years ago. Even non-exercisers believe they would be more attractive and confident if they were more active.
It is hard not to get the message. The virtues of physical fitness are shown on magazine covers, postage stamps, and television ads of everything from beauty soaps to travel books. Exercise as a part of daily life did not catch on until the late 195s when research by military doctors began to show the health benefits of doing regular physical exercises. Growing publicity (宣传) for races held in American cities helped fuel a strong interest in the ancient sport of running. Although running has leveled off in recent years as Americans have discovered equally rewarding-and sometimes safer-forms of exercise, such as walking and swimming, running remains the most popular form of exercise.
As the popularity of exercise continues to mount, so does scientific evidence of its health benefits. The key to fitness is exercising the major muscle groups vigorously (强有力地) enough to approximately double the heart rate and keep it doubled for 20 to 30 minutes at a time. Doing such physical exercises three times or more a week will produce considerable improvements in physical health in about three months.
5.It can be learnt from the passage that the health benefits of exercise .
A.are to be further studied B.are selfevident
C.are yet to be proved D.are supported by scientific evidence
6.A growing interest in sports developed after___________ .
A.an increasing number of races were held in American cities
B.research showed their health benefits
C.scientific evidence of health benefits was shown on TV ads
D.people got the message from magazine covers and postage stamps
7.Which of the following would be the best title for the passage?
A.Exercise-The Road to Health B.Scientific Evidence of Health Benefits
C.Different Forms of Exercise D.Running-A Popular Form of Sport
8.Which of the following is closest in meaning to the phrase “leveled off” in the paragraph 2?
A.“reached its lowest level in popularity” B.“stopped being popular”
C.“stopped increasing in popularity” D.“become very popular”
Even with little exposure to cultural standards of beauty, “infants treat attractive faces as distinctive regardless of the sex, age a nd race of the stimulus(刺激物) faces,” write psychologist Judith H.Langlois and her colleagues in the January DEVELOPMENTAL PSYCHOLOGY.
In their experiment, 5 healthy 6-month-old infants from middle-class families viewed slides showing eight pairs of white male faces and eight pairs of white female faces. Each pair, displayed for 10 seconds, consisted of one attractive and one unattractive face, as previously judged by a group of male and female college students. An experimenter viewed the young participants on a video monitor and recorded the direction and duration of each infant’s gaze.
The 35 boys and 25 girls looked longer at both male and female faces judged as attractive, the researchers found.
Their second study of 6-month-old involved 15 boys and 25 girls, mostly white, who saw eight pairs of slides showing an attractive and an unattractive black female, as previously judged by both white and black college students. Again, the babies looked much longer at attractive faces.
Finally, 19 boys and 20 girls, all 6 months old and almost all of them white, viewed eight pairs of slides showing the faces of 3-month-old boys and girls previously rated as attractive or unattractive by college students. Attractive baby faces drew signficantly longer looks, the psychologists report.
Further studies must explore whether infants take attractive faces as “best examples” of a face, the investigators claim Langlois and a coworker recently reported that attractive faces may possess features that approximate the mathematical average of all faces in particular population.
1.What was found in the first study?
A.Male infants looked longer only at female ones.
B.Females looked more attractive than males.
C.Sixty 6monthold babies looked longer at the attractive faces, male or female.
D.White female faces drew more attention than those of black ones.
2.In the last paragraph, the writer implies that .
A.Langlois and her partners will stop their experiments they accomplished a lot
B.Langlois and her partners will focus on the other fields of infants
C.Langlois and her partners have achieved success in studying the infants’ mind
D.Langlois and her partners have found a more interesting field
3.What can be inferred from the passage?
A.All babies, white or black, tend to share with the college students the preference for attractive faces.
B.White babies prefer white faces to black ones.
C.Babies tend to get interested in the attractive faces of the opposite sex.
D.Beauty has something to do with a person’s age, race and sex
4.The title that best expresses the main idea is .
A.Psychology of Infants B.Beauty in Variety C.Beauty and Race D.Beauty in Infants
A punctual person is in the habit of doing a thing at the proper time and is never late in keeping an appointment.
The unpunctual man, on the other hand, never does what he has to do at the proper time. He is always in a hurry and in the end loses both time and his good name. A lost thing may be found again, but lost time can never be regained. Time is more valuable than material things. In fact, time is life itself. The unpunctual man is for ever wasting and mismanaging his most valuable asset as well as others’. The unpunctual person is always complaining that he finds no time to answer letters, or return calls or keep appointments promptly. But the man who really has a great deal to do is very careful of his time and seldom complains of want of it. He knows that he can not get through huge amount of work unless he faithfully keeps every piece of work when it has to be attended to.
Failure to be punctual in keeping one’s appointments is a sign of disrespect towards others. If a person is invited to dinner and arrives later than the appointed time, he keeps all the other guests waiting for him. Usually this will be regarded as a great disrespect to the host and all other guests present.
Unpunctuality, moreover, is very harmful when it comes to doing one’s duty, whether public or private. Imagine how it would be if those who are put in charge of important tasks failed to be at their proper place at the appointed time. A man who is known to be habitually unpunctual is never trusted by his friends or fellow men.
12. What is an unpunctual person like?
A. He always does a thing when it should be done. B. He is always very busy.
C. He always does a thing at the wrong time. D. He always keeps the appointments.
13. Why is unpunctuality very harmful?
A. Because it makes a man lose many chances of doing important affairs.
B. Because it makes a man lose friends.
C. Because it makes a man work quickly.
D. Because it makes a man be more respected by others.
14. According to the passage, which is right?
A. The punctual person has no much work to do.
B. The unpunctual person is very rich
C. The unpunctual person is often respected by his friends.
D. The unpunctual person loses what can’t be regained again.
15. According to the passage, what are good manners when you are invited to a party?
A. Arriving at the appointed time. B. Arriving before all other guests.
C. Arriving after all other guests. D. Keeping all other guests waiting.
16. Why is a person always unpunctual?
A. He is too busy.B. He has too much work to do.
C. He does care much about time. D. He doesn’t manage his time properly.
Today, ultrasonic(超声的) waves are being put to work in laboratories and factories. If an ultrasound generator is placed in a liquid, the waves move the liquid back and forth hundreds of thousands of times each second. This causes materials to mix quickly or to dissolve(使分解，使溶解) in liquids. Paint manufacturers(制造商) use ultrasound to do a better job of blending colors. The companies that make film for your camera find that mixing chemicals by the use of sound waves will produce a more sensitive film.
The new lightweight(轻量的) type of washing machine uses ultrasonic waves to get clothes clean. Its special ultrasound generator is put into a pail of soapy water containing the soiled clothes. The sound waves drive the soapy water back and forth through the cloth so fast that everything is soon clean. There is also a new kind of dishwasher that works in much the same way.
Ultrasonic waves can shake a liquid so fast that tiny holes form all through it. The liquid is actually torn apart by this action. Almost as soon as these holes are made, they fall together again. The result is a powerful pounding action. In the dairy industry this is used for the double purpose of making homogenized(使均匀，使匀质) milk and sterilizing(使无菌) it at the same time. If you look at some raw milk with a microscope, you find that it is made up of little drops of butter fat floating around in a watery liquid. In order to make milk easier to digest, these fat droplets(微粒) may be broken up by forcing the milk through very small openings. The result is called homogenized milk. When the ultrasonic method is used, the sound waves not only break up the droplets but also kill the germs in the milk by pounding them to pieces. (from www.nmet84.com)
8. Why does a paint manufacturer use ultrasound to do a better job of blending colors?
A. Because it is cheap to use ultrasound to blend colors.
B. Because the waves move the liquid so quickly that it can make materials mix quickly or dissolve in liquids.
C. Because they can mix chemicals by the use of sound waves.
D. Because the waves can clean the paint.
9. What properties does ultrasound wave have?
A. Homogenizes and sterilizes the milk. B. Mix materials and break droplets.
C. Kill germs and sterilize milk. D. Move liquids quickly.
10. What exists in the raw milk?
A. Little drops of butter fat. B. Small holes. C. Fat droplets and germs. D. Chemicals.
11. Where is ultrasound wave not used?
A. In the paint manufacture. B. In the shop mixing bread flour.
C. In the film-making company. D. In the dairy industry.
Together. 31 years.
Alvin Ailey American Dance Theater
They make you sway. With a dance form all their own. Originating as an intimate, innovative dance company, it has evolved into an international force. Taking the spirit of African—American culture and translating it into dance and community programs for more than 31 years. A heritage of bringing together a repertoire of Ailey classics and great dance masterpieces along with exciting new works by emerging artists. Modern Vibrant. Athletic. Colorful. Involving. Because it is dance in step with the people. Part of the neighborhood, their pulse beats—beats—beats of life. Lifting spirits. Able to leap tall buildings in a single bound. Pirouetting the globe. Soaring, moving as one, moving dance into the future. Join Philip Morris in its 8th year of supporting Alvin Ailey American Dance Theater. And celebrate the achievement of the Ailey past as they boldly step forward.
5. What does the advertisement ask people to do?
A. To see a play. B. To watch a match. C. To ball there. D. To see Philip Morris.
6. How is the company?
A. Modern and involving.B. Intimate and innovative.
C. Athletic and colorfulD. Vibrant and innovative.
7. What does Alvin Ailey American Dance Theater hold this activity for?
A. To develop the spirit of African—American culture.
B. To leap tall buildings in a single bound.
C. To pirouette the globe.
D. To celebrate the achievement of the Ailey past.