Rising levels of carbon dioxide in the atmosphere are a major cause of climate change, and now a new study has confirmed that atmospheric CO2 is also affecting the ocean chemistry and potentially harming sea life.
Montana State University scientist Robert Dore has been researching the water in the Pacific Ocean for almost two decades. "We've been going to the same spot in the Pacific Ocean, and we try and characterize long-term change in the open ocean environment. And one of the key things that we measure is COx levels. And We've been able to record this increasing quantity of atmospheric CO, into the ocean. "Scientists expected that as atmospheric CO2 increased, more and一 more of the carbon dioxide would be absorbed into the ocean, affecting the chemical balance of the sea water, with a potentially harmful impact on shellfish and coral in particular.
"As carbon dioxide dissolves in the water, or seawater in this case, it forms a weak acid, carbonic acid," Dore explains. "And therefore, as the concentration of CO2 in the atmosphere goes up and that exchanges with the surface seawater, it drives the pH down, and makes it more acidic."
The seawater samples Dow and his colleagues have analyzed confirm what the theory predicts. The effect was particular striking at about 250 meters down, and again at 500 meters. Dore and his colleagues came up with two possible explanations. It could be that surface water picked up CO2 and then moved to those depths. Or there could be a biological explanation.
"It's important to realize that the oceans are really becoming acidic. And it can have negative impacts on a whole variety of sea life from fish to coral. It’s potentially catastrophic."What can be the best title of the passage?
| A．Sea Life Facing Danger | B．Scientist Researching Seawater |
| C．Oceans Becoming More Acidic | D．Climate Change Affecting Seawater |
With the increase of atmospheric C02，＿．
| A．more corals will appear in the sea |
| B．the surface water is becoming warmer |
| C．the chemical balance of the seawater is affected |
| D．the pH of the ocean out here has been increasing |
Which of the following shows the process of the impact of atmospheric C02 on sea life?
a. Sea life is endangered. b. C02 goes into the surface water.
c. The ocean chemistry is affected. d. C02 levels in the atmosphere go up
e. C02 decreases the pH and makes the seawater more acidic.
| A．abcde | B．dbcea | C．aebed | D．edcba |
Scientist Robert Dore came to the conclusion based on＿．
| A．his research and analysis | B．the expectation of other scientists |
| C．some former theory | D．a major cause of climate change |
Some people think that as more and more people have televisions in their homes, fewer and fewer people will buy books and newspapers. Why read an article in the newspaper, when the TV news can bring you the information in a few minutes and with pictures? Why read the life story of a famous man, when a short television program can tell you all that you want to know?
Television has not killed reading, however. Today, newspapers sell in very large numbers. And books of every kind are sold more than ever before. Books are still a cheap way to get information and enjoyment. Although some books with hard covers are expensive, many books are printed today as paperbooks (平装本), which are quite cheap. A paperback collection of short stories, for example, is always cheaper than an evening at the cinema or the theater, and you can keep a book for ever and read it many times.
Books are a wonderful provider of knowledge and pleasure and some types of books should be in every home. Every home should have a good dictionary. A good encyclopedia (百科全书), though expensive, is useful, too, because you can find information on any subject. Besides, you can have such books as history books., science textbook, cookbooks, and collections of stories and poems. Then from time to time you can take a book of poems off your shelves and read the thoughts and feelings of your favorite poets.It can be inferred from the passage that ________.
| A．TV programs are a chief provider of knowledge |
| B．cinemas are the best choice in getting information |
| C．reading is a cheap way of learning and having fun |
| D．newspapers are an expensive way to enjoy oneself |
What does the sentences “Television has not killed reading, however ” underlined in the second paragraph suggest?
| A．People only need reading, though. | B．Reading is still necessary today. |
| C．Reading is more fun than television. | D．Watching television doesn’t help reading. |
What can we learn from the passage?
| A．Fewer and fewer people will buy books. |
| B．A good dictionary should be kept in every home. |
| C．Books with hard covers sell better than paperbooks. |
| D．More people like TV programs about famous men. |
What can we learn from the passage?
| A．Fewer and fewer people will buy books. |
| B．A good dictionary should be kept in every home. |
| C．Books with hard covers sell better than paperbooks. |
| D．More people like TV programs about famous men. |
People believes that climbing can do good to health. Where can you learn the skill of climbing then? If you think that you have to go to the mountains to learn how to climb, you’re wrong. Many Americans are learning to climb in city gyms(体育馆). Here, people are learning on climbing. The climbing wall goes straight up and small holding places for hands and feet.
How do people climb the wall? To climb, you need special shoes and (保护带) around your chest to hold you. There are ropes(绳索)tied to your. The ropes hold you in place so that you don’t fall. A beginner’s wall is usually about 15 feet high, and you climb straight up. There are small pieces of metal that stick out for you to stand on and hold on to. Sometimes it’s easy to see the new piece of metal. Sometimes, it’s not. The most difficult is an your fear. It’s normal for humans to be afraid of falling, so it’s difficult not to feel fear. But when you move away from the wall, the and the ropes hold you, and you begin to feel safe. You move slowly until you reach the top.
Climbing attracts people because it’s good exercise for almost everyone. You use your whole body, especially your arms and legs. This sport gives your body a complete workout. When you climb, both your mind and your body can become stronger.What can we infer from the passage?
| A．People are fairly interested in climbing nowadays. |
| B．It is impossible to build up one’s body by climbing. |
| C．People can only learn the skill of climbing outdoors. |
| D．It is always easy to see holding places in climbing. |
The most difficult thing to do in wall climbing is _______.
| A．to tie ropes to your | B．to control your fear |
| C．to move away from the wall | D．to climb straight up |
The word “workout” underlined in the last paragraph most probably means _________.
| A．settlement | B．exercise | C．excitement | D．tiredness |
Why does the author write this passage?
| A．To tell people where to find gyms. | B．To prove the basic need for climbing |
| C．To encourage people to climb mountains. | D．introduce the sport of wall climbing |
| Part-time Front Desk Position , a book development company, is looking for a part-time front desk office worker. This position is perfect for a person who is cheerful, dependable, and pleasant to work with. Also, you should be able to welcome guests, redirect phone call, and take messages. More importantly, you can stay cool under pressure. You are expected to work 5:00--6:00 pm weekdays. You need to fill in some forms if you are interested. Forms can be collected at 866 United Nations Plaza, #525 New York, NY 10037 |
| Important Points to Remember When Swimming ·Wait at least an hour after meals. ·Follow the advice of lifeguards. ·Don’t dive into unknown waters. Always swim in line with the ·Find out at the seaside when and where it is safe to swim. ·Don’t use floating toys on the water. Wind can easily sweep them out to sea. ·Get out of the water if you feel tired or cold. Cold can kill even strong swimmers. Help Telephone:212-543-5902 Atlantic City Beach Office |
| Arrive on time. Introduce yourself in a polite manner. Read company materials while you wait. Have a firm handshake. Listen. Use body language to show interest. Smile and nod to the interviewers. Ask about the next thing you should do. Thank the interviewer. Write a thank-you letter to anyone you have spoken to. For more information, please visit jobweb.com 368 Cooper Square, New York. |
If you want to work in an office, where can you get the forms to fill in?
| A．jobweb.com | B．Atlantic City Beach Office. |
| C．368 Cooper Square, New York, NY | D．866 United, New York, NY 10017. |
What does a person need most to be the one-hour weekday job?
| A．He should he cheerful, dependable, and easy-going. |
| B．He has to work from Monday to Friday. |
| C．He can remain calm in a difficult situation. |
| D．He can welcome guests and deal with phone calls. |
According to the above information, what is the right thing to do when you?
| A．To keep close to the beach. | B．To dive into unknown waters. |
| C．To use floating toys on the water. | D．To swim soon after lunch. |
The best title for the last piece of information would be_________.
| A．Tips on Showing Interest in a Job | B．Stops to a Successful Interview |
| C．Advice on Introducing Yourself Politely | D．of Body Language in an Interview |
When I was a child, I often dreamed of the time when I could leave home and escape to the city. We lived on a farm, in the winter especially, we wear quite out off from the outside world. As soon as I left school, I packed my bags and moved to the capital. However, I soon discovered that my life has its too.
One big disadvantage is money. It costs so much to go out, not to mention basics like food and housing. Another disadvantage is pollution. I suffer from asthma(哮喘), and the air is so that I am afraid to go outside. Then there is the problem of traveling round. Although I have a car, I seldom use it became of the traffic jams. One choice is to go by bicycle, but that can be quite dangerous.
Of course there are advantages. First, there is so much to do in the city, whatever you tastes in culture or entertainment(娱乐活动). Besides, there are wonderful jobs and greater chances of moving to a more important job or position. Finally, if you like shopping, the variety of goods is very surprising --- and , what is more, shops are often only a short walk away.
Is life better then, in the city? Perhaps it is , when you are in your teens(十几岁)or twenties. However, as you get older, and especially if you have small children, the peace of the countryside may seem preferable. I certainly hope to move back there soon.What was the writer always thinking about when he was a child?
| A．Staying on the farm. | B．Moving to the countryside. |
| C．Leaving home for the city. | D．Running away from the school. |
Which of the following is true about the writer?
| A．He is very old now. | B．He is in good health. |
| C．He prefers driving a car. | D．He lives in the city now. |
In the passage, the writer tries to __________.
| A．express his opinions about way of life | B．describe his life in the countryside |
| C．an interest in the outside world | D．persuade the reader to live in the city |
How is the passage mainly developed?
| A．By inferring. | B．By comparing. | C．By listing examples. | D．By giving explanations. |
阅读下面的短文，并根据短文后的要求答题（请注意问题后的字数要求
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Everyone has got two personalities (性格)- the one that is shown to the world and the other that is secret and real. You don’t show your secret personality when you're awake because you can control your behaviour, but when you're asleep, your sleeping position shows the real you. In a normal night, of course, people frequently change their position. The important position is the one that you go to sleep in.
● If you go to sleep on your back, you're a very open person. You normally trust people and you are easily influenced by fashion or new ideas. You don’t like to upset people, so you never express your real feelings. You’re quite shy and you aren’t very confident.
● If you sleep on your stomach, you are a rather secretive person. You worry a lot and you're always easily upset. You're very stubborn, but you aren't very ambitious. You usually live for today not for tomorrow. This means that you enjoy having a good time.
●If you sleep on curling(蜷缩)up, you are probably a very nervous person. You have a low opinion of yourself and so you're often defensive. You're shy and you don't normally like meeting people. You prefer to___________________.
●If you sleep on your side, you have usually got a well-balanced personality. You know your strengths and weakness. You're usually careful. You have a confident personality. You sometimes feel anxious, but you don't often get depressed. You always say what you think even if it annoys people.
1. What is the best title of the passage? (Please answer within 10 words.)
_____________________________________________
2. Which sentence in the passage can be replaced by the following one?
You always stick to your own opinion, but you don't have far-reaching goals.
____________________________________________
3. Please fill in the blank with proper words or phrases to complete the sentence.
(Please answer within 10 words.)
_____________________________________________
44. Sleeping positions and personalities