The ocean bottom, a region nearly 2．5 times greater than the total land area of the Earth, is even today largely unexplored．Until about a century ago, the deep-ocean floor was completely inaccessible and hidden beneath waters averaging over 3,600 meters deep．Totally without light and subjected to intense pressures hundreds of times greater than at the Earth’s surface, the deep-ocean bottom is a strangeenvironment to humans, in some ways as forbidding and remote as the outer space．
Although researchers have taken samples of deep-ocean rocks for over a century, the first detailed global study of the ocean bottom did not actually start until 1969, with the beginning of the National Science Foundation’s Deep Sea Drilling Project(DSDP)．Using techniques first developed for the offshore oil and gas industry, the DSDP’ s drill ship, the Glomar Challenger, was able to maintain a steady position on the ocean’s surface and drill in very deep waters, taking samples of rock from the ocean floor．
The Glomar Challenger completed 96 voyages in a 15-year research program that ended in November 1983．During this time, it sailed 600,000 kilometers and took almost 20,000 samples of rocks aroun d the world．Those samples have allowed geologists to reconstruct what the planet looked like hundreds of millions of years ago and to make out what it will probably look like millions of years in the fu ture, Today, largely on the strength of evidence gathered during the Glomar Challenger’ s voyages, nearly all earth scientists agree on the theories of plate tectonics （构造学）and continental drift that explain many of the geological processes．
The samples of rocks drilled by the Glomar Challenger have also provided a climatic record stretching back hundreds of millions of years．The information of past climatic change can be used to predict future climates．
68．What does the underlined word “inaccessible” in line 3 means?
A．unrecognizable B．unreachable C．unusable D．unreasonable
69．Why does the author mention “outer space” in the first paragraph?
A．The Earth’s climate millions of years ago was similar to that in outer space．
B．It is similar to the ocean floor in being strange to the humans．
C．Rock formations in outer space are similar to those found on the ocean floor
D．Techniques used by scientists to explore outer space were similar to those used in ocean exploration
70．Which of the following is true of the Glomar Challenger?
A．It is a type of submarine． B．It is an ongoing project．
C．It has gone on over 100 voyages． D．It made its first DSDP voyage in 1968．
71．Which of the following is NOT mentioned in the passage as being a result of the Deep sea Drilling Project?
A．Geologists were able to determine the Earth’s appearance millions of years ago．
B．Two geological theories became more widely accepted by scientists．
C．Geologists observed forms of life never before seen
D．Information was revealed about the Earth’s past climatic changes．
The English language is changing fast,thanks to the rapid progress of technology. We all have a rapid choice: we can either bury our heads in the sand and spend the rest of our lives wishing Shakespeare were alive and well. Or we can embrace (拥抱) the new English,enter into the spirit of the Internet age called Weblish.
“You can’t avoid it,for the simple reason that whenever a new variety of language comes along,it inevitably (不可避免的) impacts（冲击）on the language as a whole.” says Dr. David Crystal, honorary professor of linguistics（语言学）at the University of Wales in Bangor, whose book Language and the Internet has just been published.
The trouble with keeping up with the new English is not so much that there are so many new words but that the old words no longer mean what we thought they did. In the past, if someone said they did not have Windows, you would have to suppose they lived in a cave.These days,it is probably because they use a Mac(which is a computer, not a rain coat). Spam is as disliked as it ever was ,but it once meant an unappetizing（引不起食欲的）canned meat.It now stands for unwanted “junk” email. Spellings are changing, too. Not only is text-messaging playing “hvc wth vrbs” (havoc（混乱）with verbs), but the conventions of email communication place little emphasis on “perfect speaking”.
Weblish loves to see nouns happily become verbs(“please bookmark this site”),and verbs become nouns (“Send me the download”). Verbs and prepositions are regularly thrown together to become new nouns or adjectives(e.g. dial-up, logon, print-on-demand, pull-down, upload), while others are created from simply pairing nouns: cyberspace, Etl, hyperlink, netspeak.The best title of this passage would be ______.
| A．Keep Up with the Latest Weblish | B．Keep Up with the Latest Development |
| C．Newly Invented English Words | D．Technology and English |
We can infer（推断）from the first paragraph that ______.
| A．Some people wish Shakespeare were still alive |
| B．people may have different attitudes towards Weblish |
| C．all people welcome Weblish |
| D．Weblish is not popular among people |
The author thinks the main difficulty for people in keeping up with Weblish is that ______.
| A．old words have new meanings |
| B．there are so many new words |
| C．the technology is changing too fast |
| D．Weblish words are full of spelling mistakes |
Dr. David Crystal would probably agree that ______.
| A．people should not accept Weblish |
| B．Weblish can cause misunderstandings among people |
| C．Weblish will destroy the English language |
| D．people should know something about Weblish |
One bitterly cold day, a snowstorm blew into our area. Needing firewood, I quickly set out with my best friend, Bruce, to look for a tree to cut down. I was glad to have Bruce along. Cutting down a tree in a snowstorm can be dangerous. So it was important to have a friend who could warn me of dangers.
When I chose a big 23-meter-tall tree and prepared to cut it down, my best friend suddenly warned me, “Don’t cut down that tree! It’s too close to the power line!” I wasn’t sure about it. So I decided to disregard his warning. I wanted to finish the job quickly and go home. So I began cutting down the tree. When the tree fell, there was no longer any doubt that my friend was right.
The tree caught the power line, bringing it to the ground. I considered cutting the tree off the line. After all, electricity can’t travel through wood, so I could safely remove the tree. As I reached out my finger to touch the tree, pain ran up my arm and through my head. I had been shocked!
After I returned home and told my mother what had happened, she quickly called the power company. Workers from the power company soon arrived on the scene. One of them asked if I had touched the tree, and when I told him I had, his face turned pale.
“You should have been killed,” he said.
So why am I still alive? It was my boots that saved my life.
Within two hours, the workers removed the tree. Soon the snowstorm calmed down—but not my mother.
Even though she was glad I wasn’t hurt, my mother was well serious with me. After all, I shouldn’t have brushed off my friend’s warning.
Through this experience, I learned that it’s important to listen to people who offer a different perspective(观点). Taking the time to listen might actually save a lot of time and trouble. It certainly would have kept me from getting the “shock of my life”.The underlined word “disregard ” in the second paragraph means “________”.
| A．pay no attention to | B．take notice of | C．consider | D．follow |
In spite of Bruce’s warning, the author still cut the tree because ________.
| A．he was sure there would be nothing to happen |
| B．he wasn’t sure whether Bruce was right and was anxious to go home |
| C．he didn’t hear his friend’s warning at all because of the blowing wind |
| D．he was angry with his friend and didn’t want to listen to him |
The author wrote the passage mainly to _______.
| A．give an account of one of his terrible experiences |
| B．make us know it’s important to listen to people who offer a different perspective (观点) through his experience |
| C．tell us not to cut trees down any more |
| D．remind us to be careful while working |
Which of the following statements is NOT true according to the passage?
| A．But for his boots, the writer would have died. |
| B．The writer regretted having brushed off his friend’s warning. |
| C．The writer knew nothing about electricity. |
| D．When the tree was cut down, the writer realized his friend was right |
The African elephant, the largest land animal remaining on earth, is of great importance to African eco-system. Unlike other animals, the African elephant is to a great degree the builder of its environment. As a big plant-eater, it largely shapes the forest-and-savanna（大草原）surroundings in which it lives, therefore setting the terms of existence for millions of other animals and live in its habitat.
It is the elephant’s great desire for food that makes it a disturber of the environment and an important builder of its habitat. In its continuous search for the 300 pounds of plants it must have every day, it kills small trees and under-bushes, and pulls branches off big trees. This results in numerous open spaces in both deep tropical forests and in the woodlands that cover part of the African savannas. In these open spaces are numerous plants in various stages of growth that attract a variety of other plant-eaters.
Take the rain forests for example. In their natural state, the spreading branches overhead shut out sunlight and prevent the growth of plants on the forest floor. By pulling down trees and eating plants, elephants make open spaces, allowing new plants to grow on the forest floor. In such situations, the forests become suitable for large hoofed（有蹄的）plant-eaters to move around and for small plant-eaters to get their food as well.
What worries scientists now is that the African elephant has become an endangered species. If the elephant disappears, scientists say, many other animals will also disappear from vast areas of forest and savanna, greatly changing and worsening the whole eco-system.
66. What’s the passage mainly about?
A. Disappearance of African elephants.
B. Forests and savannas as habitats for African elephants.
C. The effect of African elephants’ search for food.
D. The eating habit of African elephants.
67. What does the underlined phrase “setting the terms” in the first paragraph most probably mean?
A. fixing the time. B. worsening the situation.
C. Improving the quality. D. Deciding the conditions.
68. What do we know about the open spaces in the passage?
A. They result from the destruction of rain forests.
B. They provide food mainly for African elephants.
C. They are home to many endangered animals.
D. They are attractive to plant-eating animals of different kinds.
69. According to the passage, which of the following statements is TRUE?
A. The African elephant has become extinct.
B. African elephants have 300 pounds of plants every day, including small trees and under-bushes.
C. The African elephant is in a way the builder of the environment like other land animals.
D. If the African elephant disappears, the whole eco-system won’t be affected.
70. The passage is developed mainly by _________.
A. presenting figures
B. pointing out similarities and differences
C. describing the changes in the order of space
D. giving examples
It's time you started eating sensibly. Experts at the first Chinese Students Nutrition and Health Festival in Kunming last week listed eight bad eating habits.
●Watching television while having meals or snacks.
Doing this means you don't pay attention to your food, forget how full you are, and so overeat. It can also cause digestion (消化) diseases. One way to avoid this is only to eat in certain areas of your home.
● Replacing meals with snacks.
Many students think that eating small snacks can help them diet. But it often results in overeating and health problems related to a lack of vegetables, carbohydrates (碳水化合物),proteins and vitamins. Snacking only works if it is well planned and includes healthy foods such as nuts, vegetables, fruit and yogurt.
●Having drinks rather than water.
Fizzy (有气泡的) drinks and fruit juice are usually high in calories and sugar, which can
cause weight problems. Water is important in making your brain cells and every organ in your body work properly. For your body to burn fat, it needs at least eight glasses of pure water a day. Liquids like soda and coffee actually take water away from your body.
●Refusing to drink milk.
Milk is the best natural food—it provides you with protein, which makes your bones strong and teeth healthy.
● Choosing meat and certain vegetables over others.
Different foods provide different kinds of nutrition. If you don't have a balanced diet, this can result in malnutrition (营养失调) and a weaker body.
●Eating in front of the computer and staying there after meals.
Take a walk after eating and it helps your stomach digest the meal.
●Buying from roadside snack bars.
If you shop at these places, be careful—many are not clean enough.
● Eating throat tablets as if they were sweets.
If you eat throat tablets when you have no throat disease, they may affect the bacteria in your mouth and cause real throat problems. ______ can possibly cause digestion problem.
| A．Eating while sitting in front of TV or computer |
| B．Eating throat tablets as if they were sweets. |
| C．Choosing certain kinds of food over others. |
| D．Buying from roadside snack bars. |
Why can't soft drinks be drunk in place of water when you feel thirsty?
| A．They help brain cells work properly. | B．They make your body sick. |
| C．They take water away from your body. | D．They supply energy for your body. |
Which of the following is NOT the habit that will possibly result in a lack of nutrition?
| A．Often eating small snacks. | B．Never drinking milk. |
| C．Always eating the same kinds of food. | D．Staying in front of a computer after the meal. |
We can achieve knowledge either actively or passively（被动地）. We achieve it actively by direct experience, by testing and proving an idea, or by reasoning.
We achieve knowledge passively by being told by someone else. Most of the learning that takes place in the classroom and the kind that happens when we watch TV or read newspapers or magazines is passive. Although we are used to passive learning, it’s not surprising that we depend on it in our everyday communication with friends and co-workers.
Unfortunately, passive learning has a serious problem. It makes us tend to accept what we are told even when it is rumor (谣言).
Did you ever play the game Rumor? It begins when one person writes down a message but doesn’t show it to anyone. Then the person whispers it, word for word, to another person. That person, in turn, whispers it to still another, and so on. Then the last person writes down the message word for word as he or she hears it. Then the two written statements are compared. Typically, the original message has changed.
That’s what happens in daily life. The simple fact that people repeat a story in their own words changes the story. Then, too, most people listen imperfectly. And many enjoy adding their own feelings to a story, trying to improve it, marking it with their own personal style. Yet those who hear it think they know.
This process is also found among scholars and authors: A statement of opinion by one writer may be re-stated as fact by another, who may in turn be quoted by yet another; and this process may continue, unless it occurs to someone to question the facts on which the original writer based his opinion or to challenge the interpretation he placed upon those facts.According to the passage, passive learning may occur when a person is _______.
| A．doing a medical experiment | B．solving a math problem |
| C．watching news on TV | D．doing scientific reasoning |
The underlined word “it” in Paragraph 2 refers to _____.
| A．active learning | B．knowledge | C．communication | D．passive learning |
The author mentions the game Rumor to show that _____.
| A．a message may be changed when being passed on |
| B．a message should be delivered in different ways |
| C．people may have problems with their sense of hearing |
| D．people tend not to believe in what they know as rumor |
What can we infer from the passage?
| A．Active learning is less important. |
| B．Passive learning may not be dependable. |
| C．Active learning occurs more frequently. |
| D．Passive learning is not found among scholars. |
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