The UN passed a rule in the year 2004 to improve the quality of drink water and reduce deaths caused by drinking unhealthy water each year. The UN has already worked out the specific plan to reduce half of the number, that is, five thousand. The UN announced in the world there are about 1/6 of the world population can't meet the sanitation regulation of drinking water.
The water we drink and use is running short in the world. We all have to learn to stop wasting our quite limited water. One of the steps we should take is to find ways of reusing it. Experiments have already been done on this field. Today in most large cities, fresh water is used only once, then it runs into waste system. But it is possible to pipe the used water to a purifying(净化)factory. There it can be filtered(过滤) and treated with chemicals so that it can be used again , just as it were fresh from a spring. But even large cities purified and reused its water, we still would not have enough. Then we could turn to the oceans. All we would have to do to make use of seawater on earth is to get the salt out of it. This method has already been used in many parts of the world.
47. The way to stop wasting water is to ________ .
A. do experiments with water
B. purify the used water and reuse it
C. use fresh water once again
D. make use of seawater
48. The passage tells us how to reuse the used water. Which is the right order of the process?
a. to have the used water filtered b. to put chemical in it
c. to pipe it to the user
d. to pipe the used water to be purified in a factory.
A. dabc B. bcda C. bdca D. dcba
49. There wouldn't be enough water for us if we didn't ________ .
A. turn to the ocean for more water
B. reuse used water and make use of seawater
C. make fresh water from the seawater
D. take steps to reuse all water on earth
50. The word "it" underlined in the last paragraph refers to ________ .
A. the process of collecting salt from the ocean
B. the process of getting rid of the salt in seawater
C. purified water
D. seawater
Without plant, people could not live. We eat plants. We breathe the oxygen（氧气）that plants produce. And we need plants for another reason: we need them for their beauty.
Imagine a world with no plants. Imagine no flowers with their sweet smells, their beautiful colors and their lovely shapes. Imagine when the wind blows, not being able to hear the leaves in the trees or watch the branches sway（摇摆）from side to side.
Everywhere people need the beauty of plants. That is why we have parks full of trees and flowers. That is why people always try to design houses with room for some grass and a garden.
Do you talk to your plants? Do you give them love and attention?
Peter Tompkins and Christopher Bird, writers of a book called THE SECRET LIFE OF PLANTS, tell of an experiment in which two seeds were planted in different places. While the plants were growing, one plant was given love and hopeful ideas. The other plant was given only hopeless ideas. After six months, the loved plant was bigger. Under the earth it had more and longer roots; above the earth, it had a thicker stem (茎) and more leaves. According to the passage, which of the following is right?
| A．If there are no flowers, there will be no sweet smells. |
| B．Without plants, we can’t hear the wind. |
| C．We plant trees to watch the branches sway from side to side. |
| D．We need plants not only for food and oxygen but also for their beauty. |
In the experiment, the plants were________.
| A．of different kinds | B．talked to in two different ways |
| C．both given love and attention | D．grown in the same place |
At the end of six months,________.
| A．one plant had longer roots than the other and had a thicker stem |
| B．one plant had longer roots while the other had a thicker stem |
| C．the plants were of the same size |
| D．one plant had a thicker stem while the other plant had more leaves |
The experiment has proved（证明） that________-.
| A．we should talk to plants and give them love |
| B．without plants people could not live |
| C．we should grow as many plants as possible |
| D．plants need plenty of water, sunshine and attention |
Most children now chat daily either online or through their mobile phones. They are connecting to a huge number of other children all over the world. Some are shy “in real life” but are confident to communicate with others online; others find support from people of their own age on relationship issues, or problems at home.
Sometimes the online world, just like the real world, can introduce problems, such as bullying or arguments. Going online is great fun, but there are also a few people who use the Internet for offensive (冒犯性的) or illegal aims. Children must be made aware of both the good things and the dangers.
To keep children safe your management must cover the family computer. Just as you decide which TV pro-grams are suitable, you need to do the same for the websites and chat rooms your children visit. Remind your children that online friends are still strangers. Re-minding them of the risks will keep them alert (警惕).
Computer studies are part of schoolwork now, so it’s likely that your children may know more than you do. We get left behind when it comes to the latest gad-gets and the interactive areas of websites, like chat rooms and message boards, which are especially strange. The language of chat is strange to many parents, too. Chatters love to use abbreviations (缩写) such as: atb — all the best, bbfn — bye bye for now, cul8er — see you later, gr8 — great, Idk — I don’t know, imbl — it must be love, kit — keep in touch, paw — parents are watching, lol — laugh out loud, xlnt — excellent!
It seems like another language, and it is! The passage is meant for ______.
| A．parents | B．children. |
| C．teachers | D．net bar owners |
The purpose of writing this passage is to advise ______.
| A．people not to use the net language in real life |
| B．children not to meet online friends freely |
| C．teachers to have students study on computers |
| D．parents to protect their children from online dangers |
In order to keep children safe online, you’d better ______.
| A．forbid them to use the Internet |
| B．teach them to use correct net words |
| C．surf the Internet together with them |
| D．choose suitable websites and chat rooms for them |
If you stand beside him when your son is chatting about something secret online, he may use ______.
| A．bbfn | B．paw | C．lol | D．cul8er |
The National Dark-Sky Week (NDSW) is a week during which people all over the United States turn off their lights to enjoy the beauty of the night sky without light pollution. This even was started by Jennifer Barlow of Midlothian, Virginia in 2003, and it is becoming more popular each year. It has been supported by the International Dark-Sky Association, the American Astronomical Society, and the Astronomical League.
This even always occurs in April, during the week of the new moon so that the sky can be as dark as possible for the best viewing conditions.
“It is my wish that people could see the night sky without other light in the sky as our ancestors (祖先) saw it hundreds of years ago,” explains Barlow.
Since it only lasts a week and not everyone in the country will take part in it, how will the National Dark-Sky Week reduce light pollution? The main goal of NDSW is to increase awareness (意识) of the harmful effects of light pollution. It is not possible for all of the light pollution in this part of the world to disappear. However, it is possible to make a small difference in the quality of the night sky. Another goal of this even is to promote (促进) the use of better lighting systems that direct light toward the ground instead of up into the sky.
Jennifer Barlow states, “The night sky is a gift of such beauty that it should not be polluted by wasted light. In this way, our children will not lose touch with the wonder of our universe.”This passage is mainly about ______________.
| A．better lighting systems | B．the National Dark-Sky Week |
| C．the harm of light pollution | D．the beauty of the night sky |
Which of the following statements about the National Dark-Sky Week is WRONG?
| A．It is becoming more and more popular in America. |
| B．The event was started in 2003 by Jennifer Barlow. |
| C．The event takes place in the first week of every April. |
| D．American people are supposed to turn off their lights during that week. |
What is Jennifer Barlow’s wish?
| A．That people could spend time enjoying the beauty of the sky every night. |
| B．That the sky would always be as dark as possible. |
| C．That people could see the night sky without light pollution as our ancestors did. |
| D．That light would be directed up into the sky. |
We can infer from the underlined（划线的）sentence in Paragraph 4 that ________.
| A．many people in America hate this event |
| B．he event should last a month every year |
| C．it may be hard to reduce light pollution t |
| D．light will no longer pollute the sky soon |
I was with a group of businessmen, and we were dealing with a question—What is a good person?
At a certain point during the discussion, one of the students—a young man of about thirty—described an event that happened at Christmas. He and his five-year-old son were decorating the Christmas tree, and a little boy came to the front door begging. If you ever visit Mexico, you will see that the people there take begging as nothing to get upset about and nothing to get embarrassed by.
So, this little boy came to the door, a boy about the same age as my student’s son. The father and the son went to the front door, and the father went back with his five-year-old son and said to him, “Give him one of your toys.” At the words, the little boy quickly picked up some toy, and his father said to him, “No, no－give him your favorite toy.”
And the little boy, like a little tiger, said, “No way!” He cried; he refused. But the father, like a big tiger in a way, insisted gently, “No, you must give him one of your favorite toys.”
And finally the boy, with his head down, picked up a toy he had just gotten. The father waited in the living room, and the boy walked to the front door with the toy in his hand. The father waited and waited.
What do you think happened?
After a couple of minutes, his son came running back into the living room, his face radiant (喜气洋洋). “Daddy,” he said, “can I do that again?”
I think I have got the answer to the question.From the passage, we can learn that in Mexico ________.
| A．begging is looked down upon |
| B．begging is considered as a normal part of life |
| C．visitors all over the world treat beggars kindly |
| D．few people are living a poor life |
The sentence “can I do that again?” showed that the boy ________.
| A．got pleasure by helping the little beggar |
| B．wanted to please his father |
| C．began to like the little beggar |
| D．wanted to be the little beggar’s friend |
According to the writer, being a good person means ________.
| A．having the courage to correct his/her mistakes |
| B．being friendly to beggars |
| C．being ready to give |
| D．being able to teach children to tell right from wrong |
根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
Do you constantly use the computer, whether for learning or entertainment? Computers give off radiation(辐射) that is bad for your health, but here are some ways to protect yourself from computer radiation.
__1___Green tea can be absorbed by the body easily into a form of vitamin A, which helps reduce radiation.__2__
It is advisable to attach a radiation filter plate(辐射过滤板)in front of your computer’s screen. Make sure to avoid putting any mental substances near your computer as these may have reflected some of the electromagnetic waves that are harmful to your health. __3__ The brighter the screen the higher the radiation there will be and vice versa.
You can also put some radiation-absorbing plants such as several cacti near your computer to prevent radiation.
Make sure you do a skincare protection before sitting in front of the computer .
___4__Wash your face soon after using the computer in order to reduce 70% of the radiation.
__ 5___ Old computer in general, has one to two times more radiation released than the new one within the same distance.
| A．And adjust the brightness of your computer screen. |
| B．Apply a layer of facial mask to protect yourself. |
| C．And adjust the sound level on your computer. |
| D．The most efficient way is by drinking some coffee regularly. |
E.The simple way is by drinking 2 or 3 cups of green tea every day.
F.If possible, purchase a new computer instead of using an old model computer.
G.It also helps keep our eyes see things clearly in the dark by improving the visual ability.