The world is not only hungry, but it is also thirsty for water．This may seem strange to you，since nearly 70 percent of the earth's surface is covered with water．But about 97 percent of this huge amount is sea water, or salt water．Man can only drink and use the other 3 percent-the fresh water from rivers，lakes，underground，and other sources．And we cannot even use all of that，because some of it is in the form of icebergs and glacier．Even worse，some of it has been polluted．
However，as things stand today, this small amount of fresh water is still enough for us．But our need for water is increasing rapidly-almost day by day．Only if we take steps to deal with this problem now can we avoid a severe worldwide water shortage later on．
We all have to learn how to stop wasting our valuable water．One of the first steps is to develop ways of reusing it．
Today in most large cities，water is used only once and then sent out into a sewer system．From there it returns to the sea or runs into underground storage tanks．But it is possible to pipe used water to a purifying plant．There it can be treated with chemicals so that it can be used again，just as if it were fresh from a spring．
But even if every large city purified and reused its water，we still would not have enough．All we'd have to do make use of the vast reserves of sea water in the world is to remove the salt．
If we take these steps we'll be in no danger of drying up．
56．The world is thirsty for water because we can only use percent of the water covering the surface of the earth．
A．3 B．more than 3 C．less than 3 D．97
57．Which of the following statements is NOT TRUE?
A．As things remain unchanging，this small amount of fresh water is still enough for us．
B．Our need for water is becoming larger and larger．
C．There will be no water shortage in the future．
D．We should take steps to deal with the water shortage problem．
58．To reuse water, we should ．
A．treat it with chemicals B．use it only once
C．send it out into a sewer system D．make it flow into underground tanks
59．In order to have enough water．we should also make use of ．
A．icebergs and glaciers B．sea water
C．rivers and lakes D．underground water
Honey from the African forest is not only a kind of natural sugar, it is also delicious. Most people, and many animals, like eating it. However, the only way for them to get that honey is to find a wild bees’ nest and take the honey from it. Often, these nests are high up in trees, and it is difficult to find them. In parts of Africa, though, people and animals looking for honey have a strange and unexpected helper — a little bird called a honey guide.
The honey guide does not actually like honey, but it does like the wax in the beehives (蜂房). The little bird cannot reach this wax(蜡), which is deep inside the bees’ nest. So, when it finds a suitable nest, it looks for someone to help it. The honey guide gives a loud cry that attracts the attention of both passing animals and people. Once it has their attention, it flies through the forest, waiting from time to time for the curious animal or person as it leads them to the nest. When they finally arrive at the nest, the follower reaches in to get at the delicious honey as the bird patiently waits and watches. Some of the honey, and the wax, always falls to the ground, and this is when the honey guide takes its share.
Scientists do not know why the honey guide likes eating the wax, but it is very determined in its efforts to get it. The birds seem to be able to smell wax from a long distance away. They will quickly arrive whenever a beekeeper is taking honey from his beehives, and will even enter churches when beeswax candles are being lighted.Why is it difficult to find a wild bees' nest?
| A．It's small in size. | B．It's buried in the soil. |
| C．It's covered with wax. | D．It's hidden in trees. |
What do the words "the follower" in Paragraph 2 refer to?
| A．A bee. | B．A bird. |
| C．A honey searcher. | D．A beekeeper. |
The honey guide is special in the way ________.
| A．it gets its food | B．it goes to church |
| C．it sings in the forest | D．it reaches into bees’ nests |
What can be the best title for the text?
| A．Wild Bees | B．Wax and Honey |
| C．Honey-Lover's Helper | D．Beekeeping in Africa |
One day, when I was working as a psychologist(心理学家) in England, a young boy showed up in my office. It was David. He kept walking up and down restlessly, his face pale, and his hands shaking slightly. His head teacher had introduced him to me before. “This boy has lost his family,” he wrote. “He is understandably very sad and refuses to talk to others, and I’m very worried about him. Can you help?”
I looked at David and showed him to a chair. How could I help him? There are problems which psychology doesn’t have the answer to, and which no words can describe. Sometimes the best thing one can do is to listen openly and silently. And I would do in this way.
The first two times we met, David didn’t say a word. He sat there, only looking up to look at the children’s drawings on the wall behind me. I suggested we play a game of chess. He nodded. After that he played chess with me every Wednesday afternoon—in complete silence and without looking at me. It’s not easy to cheat in chess, but I admit I made sure David won once or twice.
Usually, he arrived earlier than agreed, took the chess board and pieces from the shelf and began setting them up before I even got a chance to sit down. It seemed as if he enjoyed my company. But why did he never look at me?
“Perhaps he simply needs someone to share his pain with,” I thought. “Perhaps he senses that I respect his suffering.” Some months later, when we were playing chess, he looked up at me suddenly.
“It’s your turn,” he said.
After that day, David started talking. He got friends in school and joined a bicycle club. He wrote to me a few times, about his biking with some friends, and about his plan to get into university. Now he had really started to live his own life.
Maybe I gave David something. But I also learned that one—without any words—can reach out to another person. All it takes is a hug, a shoulder to cry on, a friendly touch, and an ear that listens.When he first met the author, David_________.
| A．felt a little excited | B．walked stubbornly |
| C．looked a little nervous | D．showed up with his teacher |
As a psychologist, the author __________.
| A．was uncertain about psychology | B．was ready to listen to David |
| C．was able to describe David’s problem | D．was sure of solving David’s problem |
David enjoyed being with the author because he____________.
| A．needed to share pain with the author |
| B．wanted to ask the author for advice |
| C．liked the children’s drawing in the office |
| D．beat the author many times in the chess game |
What can be inferred about David?
| A．He recovered after months of treatment. |
| B．He liked biking before he lost his family. |
| C．He went into university soon after starting to talk. |
| D．He got friends in school before he met the author. |
What made David change?
| A．His teacher’s help. |
| B．His exchange of letters with the author. |
| C．The author’s friendship. |
| D．The author’s silent communication with him. |
The Healthy Habits Survey shows that only about one third of American seniors(年长者) have correct habits. Here are some findings and expert advice.
1.How many times did you brush your teeth yesterday?
·Finding：About 33% of seniors brush their teeth only once a day.
·Step：Remove the 300 kinds of bacteria in your mouth each morning with a battery-operated toothbrush. Brush gently for 2 minutes, at least twice a day.
2.How many times did you wash your hands or bathe yesterday?
·Finding：Seniors, on average, bathe fewer than 3 days a week. And nearly 30% wash their hands only 4 times a day—half of the number that doctors advise.
·Step：We touch our faces around 3,000 times a day-often inviting germs（病菌）to enter our mouth, nose, and eyes. Use toilet paper to avoid touching the door handle. And, most important, wash your hands often with hot running water and soap for 20 seconds.
3. How often do you think about fighting germs?
·Finding：Seniors are not fighting germs as well as they should.
·Step：Be aware of germs. Do you know it is not your toilet but your kitchen sponge（海绵）that can carry more germs than anything else? To kill these germs, keep your sponge in the microwave for 10 seconds.What is found out about American seniors?
| A．Most of them have good habits. |
| B．Nearly 30% of them bathe three days a week . |
| C．All of them are fighting germs better than expected . |
| D．About one third of them brush their teeth only once a day |
Doctors suggest that people should wash their hands _________.
| A．twice a day | B．three times a day |
| C．four times a day | D．eight times a day |
Which of the following is true according to the text?
| A．We should stop touching our faces. |
| B．A kitchen sponge can carry more germs than a toilet. |
| C．There are less than 300 kinds of bacteria in the mouth. |
| D．We should wash our hands before touching a door handle. |
You may think that sailing is a difficult sport, but it is really not hard to learn it．You do not need to be strong．But you need to be quick．And you need to understand a few basic rules about the wind.
First, you must ask yourself, “Where is the wind coming from? Is it coming from ahead or behind or from the side?” You must think about this all the time on the boat．The wind direction tells you what to do with the sail.
Let's start with the wind blowing from behind．This means the wind and the boat are going in the same direction．Then you must always keep the sail outside the boat．It should be at a 90° angle (角度) to the boat．Then it will catch the wind best.
If the wind is blowing from the side, it is blowing across the boat．In this case, you must keep the sail half way outside the boat．It should be at a 45° angle to the boat．It needs to be out far enough to catch the wind, but it shouldn't flap (摆动)．It shouldn't look like a flag on a flagpole．If it is flapping, it is probably out too far, and the boat will slow down.
Sailing against the wind is not possible．If you try, the sail will flap and the boat will stop．You may want to go in that direction．It is possible, but you can't go in a straight line．You must go first in one direction and then in another．This is called tacking．When you are tacking, you must always keep the sail inside the boat.What should you consider first while sailing?
| A．Sailors' strength. | B．Wave levels. |
| C．Size of sails. | D．Wind directions. |
What does the word “It” underlined in Paragraph 4 refer to?
| A．The boat. | B．The sail. |
| C．The wind. | D．The angle. |
What do you have to do when sailing against the wind?
| A．Move in a straight line. | B．Allow the sail to flap. |
| C．Lower the sail. | D．Tack the boat. |
Where can you probably find the text?
| A．In a popular magazine. | B．In a tourist guidebook. |
| C．In a physics textbook. | D．In an official report. |
In 1978, I was 18 and was working as a nurse in a small town about 270 km away from Sydney, Australia. I was looking forward to having five days off from duty. Unfortunately, the only one train a day back to my home in Sydney had already left. So I thought I’d hitch a ride (搭便车).
I waited by the side of the highway for three hours but no one stopped for me. Finally, a man walked over and introduced himself as Gordon. He said that although he couldn’t give me a lift, I should come back to his house for lunch. He noticed me standing for hours in the November heat and thought I must be hungry. I was doubtful as a young girl but he assured (使……放心)me I was safe, and he also offered to help me find a lift home afterwards. When we arrived at his house, he made us sandwiches. After lunch, he helped me find a lift home.
Twenty-five years later, in 2003, while I was driving to a nearby town one day, I saw an elderly man standing in the glaring heat, trying to hitch a ride. I thought it was another chance to repay someone for the favor I’d been given decades earlier. I pulled over and picked him up. I made him comfortable on the back seat and offered him some water.
After a few moments of small talk, the man said to me, “You haven’t changed a bit, even your red hair is still the same.”
I couldn’t remember where I’d met him. He then told me he was the man who had given me lunch and helped me find a lift all those years ago. It was Gordon.The author(作者) had to hitch a ride one day in 1978 because____________ .
| A．the town was far away from Sydney |
| B．she was going home for her holidays |
| C．she missed the only train back home |
| D．her work delayed her trip to Sydney |
Which of the following did Gordon do according to Paragraph 2?
| A．He helped the girl find a ride. |
| B．He gave the girl a ride back home. |
| C．He bought sandwiches for the girl. |
| D．He watched the girl for three hours. |
The reason why the author offered a lift to the elderly man was that.
| A．she realized he was Gordon |
| B．she had known him for decades |
| C．she was going to the nearby town |
| D．she wanted to pay back the help she once got |
What does the author want to tell the readers through the story?
| A．People should offer free rides to others. |
| B．Those who give rides will be repaid. |
| C．Good manners bring about happiness. |
| D．Sometimes giving produces nice results. |