"Have you ever been out on a boat and felt it lifted up by a wave? Or have you jumped in the water and felt the rush of energy as waves came over you?" asked Jamie Taylor of the Wave Energy Group at the University of Edinburgh. "There is certainly a lot of energy in waves," he said.

       Scientists are working to use that energy to make electricity. Most waves are created when winds blow across the ocean. "The wind starts out by making little ripples (涟漪) , but if they keep on blowing, those ripples get bigger and bigger and turn into waves," Taylor said. " Waves are one of nature 's ways of picking up energy and then sending it off on a journey.

     When waves come toward the shore, people can set up dams to block the water and send it through a large wheel called a turbine (涡轮机) . The turbine can then power an electrical generator to produce electricity.

     "The resource is huge," said Janet Swain of the Worldwatch Institute. "We will never run out of wave power. " Besides, wave energy does not create the same pollution as other energy sources, such as oil or coal. Oceans cover three-quarters of the Earth's surface - that would make wave power seem ideal for creating energy throughout the world, though there are some weak points yet to overcome.

      Swain said that wave power still costs too much money. She also said that its effects on sea animals are still unknown. What is more, wave power could affect fishing and boat traffic.

      Traditional sources of energy like oil and gas may someday run out. " Demand for energy to power our TVs and computers, drive our cars, and heat and cool our homes is rising rapidly throughout the world," Swain said. In the future when you turn on a light, an ocean wave could be providing the electricity!

64. The writer uses the two questions at the beginning of the passage to _______.

A. test the readers' knowledge about waves          B. draw the readers' attention to the topic

C. show Jamie Taylor's importance                            D. invite the readers to answer them

65. The underlined phrase "picking up" (paragraph 2) is closest in meaning to _______.

A. starting again            B. speeding up              C. gathering           D. improving

66. We can make better use of wave energy if we _______.

A. shorten its journey to thousands of homes       B. build more small power stations on the oceans

C. reduce the cost of turning it into electric power

D. quicken the steps of producing electricity

67. It can be inferred that some day we might not worry about ________.

A. air pollution             B. our boat traffic         C. our power supply             D. our supply of sea fish

Imagine a mass of floating waste is two times the size of the state of Texas. Texas has a land area of more than 678 000 square kilometers. So it might be difficult to imagine anything twice as big. All together, this mass of waste flowing in the North Pacific Ocean is known as the Great Pacific Ocean Garbage Patch. It weighs about 3 500 000 tons. The waste includes bags，bottles and containers—plastic products of all kinds.www.zxxk.com

The eastern part of the Great Pacific Ocean Garbage Patch is about l 600 kilometers west of California. The western part is west of the Hawaiian Islands and east of Japan. The area has been described as a kind of oceanic desert，with light winds and slow moving water currents. The water moves so slowly that garbage from all over the world collects there.

In recent years，there have been growing concerns about the floating garbage and its effect on sea creatures and human health. Scientists say thousands of animals get trapped in the floating waste，resulting in death or injury. Even more die from a lack of food or water after swallowing pieces of plastic. The trash can also make animals feel full，lessening their desire to eat or drink.

The floating garbage also can have harmful effects on people. There is an increased threat of infection of disease from polluted waste，and from eating fish that swallowed waste. Divers can also get trapped in the plastic.www.zxxk.com

Its existence first gained public attention in l997. That was when racing boat captain and oceanographer Charles Moore and his crew sailed into the garbage while returning from a racing event. Five years earlier，another oceanographer learned of the trash after a shipment of rubber duckies got lost at sea. Many of those toys are now part of the Great Pacific Ocean Garbage Patch.

In August，2009，a team from the University of California，San Diego became the latest group to travel to it. They were shocked by the amount of waste they saw. They gathered hundreds of sea creatures and water samples to measure the garbage patch’s effect on ocean environment.

1.How did the writer introduce the topic of the passage?

A. By giving an example.       B. By listing the facts.

C. By telling a story.           D. By giving a comparison.

2.What do we know about the Great Pacific Ocean Garbage Patch?

A. It is made up of various kinds of plastic products.

B. It is a solid mass of floating waste materials.

C. It lies l60 000 kilometers east of California.

D. It is described as a kind of oceanic land.

3.Why do people pay attention to the Great Pacific Ocean Garbage Patch?

A. Because it may prevent the flow of ocean water.

B. Because the polluted plastic products will affect the food chain.

C. Because it maybe form an island in the pacific.

D. Because ships may be trapped in the floating waste.

American doctors have been trying to figure out the secrets behind Asians being healthier than Americans since the early 90s - The Japan has the lowest mortality rates in the world and Chinese medicine has been around for thousands of years, since around 2000 B.C. only meant that there's more to Asian health philosophy. In Asian medicine, there's an acknowledgment of the whole-body theory of medicine, instead of isolationism that's prevalent in many American doctor's offices.

The main reason behind a better health lies in the difference between Asian and American culture. Diet, exercise, and a holistic approach to medicine all contribute to Asians living longer and healthier than their American counterparts. In addition, the result of the Asian lifestyle has led to a stronger overall immune system and better detoxification（解毒） efficiency.

The more preferred drink in the American lifestyle is soda, beer or coffee. However, in Asian culture, the preferred drink is water or herbal tea. Consumption of water serves to immediately strengthen one's body detoxification program, since water dilutes toxins and helps flush the body. Americans savor red meat and pork, while most Asians prefer chicken, rice and fish. Also, the foods in Asia are mostly organic and lack the hormonal toxins that American food carries. Overall the Asian diet leads to less food-introduced toxins into the body, and allows the body to spend its energy on its immune system rather than toxin control. Also, the fish that Asians consume have very strong immunological effects, providing more antioxidants than the red meat preferred in America.

The average American family has more than one car. In Asia, on average there's 1 car per 4 families. In Asian cultures, people use bicycles more than four-wheeled transportation. The Asian lifestyle also involves more labor and physical work, such as agricultural labor and gardening. The American lifestyle praises white-collar jobs which lead to Americans sitting in front of computer screens for hours on end. Exercise helps detoxification in two ways: it speeds up metabolism, and induces sweat.

Medicine in Asia centers mostly on natural ingredients that have healing properties. Asian medicine also addresses the mind-body connection and the importance of mental balance. There are more traditional medicine doctors per person in Asia than in America. American medicine costs more and is symptom-focused, often ignoring the overall cause of the symptoms. In America, the prescriptions that are chemically derived are dangerous toxins that stress the body's detoxification system. Using Asian medicine means using only natural ingredients, which the body can easily detoxify while getting the same health benefit.

It is not very difficult to adopt the Asian lifestyle and improve your body's detoxification and immune system. You can change your lifestyle today by eating and drinking organic, exercising rigorously at least three times a week, and using organic health alternative therapies over dangerous prescription medicines.  

Emma Deangela is the author of detox and fasting site at eDetoxify.com. Combining both Asian and Western philosophy, Emma Deangela has helped many people by giving them health consultation to make their lives better and healthier through natural health philosophy. Visit eDetoxify.com to discover the health philosophy that leads many people to a healthy life.

1.According to the first paragraph, which theory is more popular among American doctors?

A．whole-body theory                      B．isolationism

C．Combined Theory of East and West          D．Not clearly mentioned.

2. The differences between Asian and American culture are not discussed in _____

A．Diet              B．Exercise           C．Medicine          D．Accidents

3.“contribute to” in the second paragraph means _____.

A．leads to           B．pay money to       C．agree on          D．result from

4. From the third and fourth paragraphs, the writer thinks Asians live longer than Americans because ______.

A．Asians don’t eat beef or mutton

B．Asians are good at catching fish

C．Asian lifestyle involves physical work more

D．Asians are not fond of office work

5. The writer’s advice is put forward in the ____ paragraph.

A．last              B．last but one        C．first              D．missing

6.The passage is overall a(n)______.

A．advertisement to a website                B．lecture to college students

C．magazine introduction                    D．newspaper front-page

Sharks are among the oldest animals on Earth. There are hundreds of kinds of sharks. Most are about two meters long. The dogfish shark, however, is less than twenty centimeters in length. A shark has an extremely good sense of smell. It can find small amounts of substances in water, such as blood, body liquids and chemicals produced by animals. 71 Sharks eat fish, other sharks, and plants that live in the ocean.

Sharks grow slowly. About forty percent of all sharks lay eggs. 72 Some sharks carry their young inside their bodies as humans do. Some sharks are not able to reproduce until they are twenty years old．Most reproduce only every two years. And they give birth to fewer than ten young sharks. For this reason, over-fishing of sharks is of special danger to the future of the animal.

Sharks are important for the world’s oceans. They eat injured and diseased fish. Their hunting activities mean that the numbers of other fish in ocean waters do not become too great. 73.

People hunt sharks for sport, food, medicine and their skin. Experts say the international market for some kinds of sharks has increased because many parts of a shark are valuable.

Collectors pay thousands of dollars for the jaws of a shark. 74 The skin of a shark can be used like leather.

In Asia, people enjoy a kind of soup made from shark fins. Experts say a fisherman can earn a lot of money for even one kilogram of shark fins. Sharks are among the oldest animals on Earth, but some sharks are in danger of disappearing from Earth.75.

E．If too many sharks in one area are killed, that group of sharks may never return to normal population levels

F． his is a threat to other forms of life in the ocean.

G．The others give birth to live young

Scientists in Canada say big fish have almost disappeared from the world since the start of industrial（产业的） fishing in the 1950s. The scientists found the numbers of some kinds of large fish have dropped by ninety percent in the past fifty years.

The study took ten years. The researchers gathered records from fishing businesses and governments around the world. The magazine Nature published the findings.

The scientists say the common method called long line fishing ravages the populations of large fish. This method involves many fishing lines connected to one boat. These wires can be nearly one hundred kilometers long. They hold thousands of sharp metal hooks to catch fish.

Long line fishing is especially common in the Japanese fishing industry. Records showed that Japanese boats used to catch about ten fish for every one hundred hooks. But long line fishing boats now might only catch one fish per hundred hooks.

The scientists say industrial fishing can destroy groups of fish much faster than in the past. The study suggests that whole populations can disappear almost completely from new fishing areas within ten to fifteen years.

Ransom Myers and Boris Worm of Dalhousie University in Nova Scotia led the study with the University of Kiel in Germany. Worm says the destruction could lead to a complete reorganization of ocean life systems. Meyers says the decreased numbers of large fish are not the only worry. He says even populations that are able to reproduce do not get the chance to live long enough to grow as big as their ancestors. He says not only are there fewer big fish, but also they are smaller than those of the past.

  It’s the end of this program ,Thank you for your listening.

1.What’s the best title for the passage?

       A. Big fish are disappearing            B. Long—line fishing in Japan     

C. The harm of industrial fishing           D. Stop killing big fish

2.Which of the following DOESN’T show that the populations of big fish are smaller than before?

A. Fish can disappear almost completely from new fishing areas.

B. Now long—line fishing boats might catch one fish per hundred hooks.

C. Fish now don’t have the chance to grow big enough.

D. Scientists spent ten years studying the populations of large fish.

3.What can we learn from the passage?

A. The number of big fish started to drop greatly about fifty years ago.

B. The study was started by Boris Worm of Dalhousie alone.

C. There will be no big fish left in fifty years .

D. Japaneses people have stopped catching big fish.