On Monday, the Centers for Disease Control and Prevention predicted that 42% of Americans could be overweight by 2030. Our expanding bodies not only lead to a medical problem, but also endanger personal safety in some situations—in an airplane crash, for example, according to a recent article in The New York Times.
The New York Times’ Christine Negroni reports that engineers and scientists are questioning whether airplane seats are designed to protect overweight travelers. Government standards（标准） for airplane seat strength—first set more than 60 years ago---require that the seats be made for a passenger weighing 170 pounds. Today, the average American man weighs nearly 194 pounds and the average woman 165 pounds. Negroni reports:
“If a heavier person completely fills a seat ,the seat is not likely to behave as designed during a crash,”Robert Salzar,the leading scientist at the Center for Applied Biomechanics at the University of Virginia. “The energy that is built into the aircraft seat is likely to be overpowered and the passengers will not be protected properly”.
“Nor would the injury be limited to that passenger only,” Dr. Salzar said. “If a seat or a seat belt fails,”he said, “those people who are seated nearby could not be safe from the uncontrolled movements of the passenger.”
Most complaints（投诉） about airplane seats focus on their lack of comfort and high ticket price, and whether overweight passengers should be made to buy two seats. But The New York Times’ article bring up another reason to feel anxious about flying. Investigators（调查者） got in touch with the airplane seat and seat belt makers, but they refused to talk about the problem. Experts agreed that crash testing should be done .Both airplane seats and seat belts should be tested, they said.
Fortunately, however, according to Nora Marshall, a senior adviser at the National Transportation Safety Board, the board’s investigators have never seen an accident involving a commercial plane in which the weight of a passenger was a problem.What is the article in The New York Times mainly about?
| A．The size of airplane seats and seat belts |
| B．Safety of overweight airplane passengers |
| C．Airplane crashes |
| D．A medical problem caused by being overweight |
Robert Salzar would probably agree that_________.
| A．overweight passengers should buy two seats |
| B．the government should help produce safer planes |
| C．standards for airplane seat strength should be raised |
| D．passengers should know how to protect themselves |
What does the underlined word “they” in Paragraph 5 refer to?
| A．Experts | B．Passengers |
| C．Investigators | D．The airplane seat makers |
We can learn from the text that_________
| A．airplane seat makers have taken action now |
| B．there are few complaints about airplane seats |
| C．those seated near the overweight may suffer too |
| D．only a small number of airplane accidents result from the overweight |
what is the best title for the text?
| A．Why do passengers Feel Anxious about Flying? |
| B．Will 42% of Americans Be Overweight by 2030? |
| C．When Will the Overweight Enjoy Their Flight? |
| D．Are Airplane Seats Safe Enough for the Overweight? |
Today anyone will accept money in exchange for goods and services. People use money to buy food, furniture, books, bicycles and hundreds of other things we need or want. When they work, they usually get paid in money.
Lots of the money today is made of paper. But people used to use all kinds of things as money. One of the first kinds of money was shells. Shells were not the only things used as money.
In China, cloth and knives were used. In the Philippine Islands, rice was used as money for a long time. Some Africans once used elephant tusks, monkey tails, and salt as money.
The first metal coins were made in China. They were round and had a square hole in the center. Different countries have used different metals and designs for their money. Later, countries began to make coins of gold and silver.
But even gold and silver were inconvenient if you had to buy something expensive. Again the Chinese thought of a way to improve money. They began to use paper money. The first paper money looked more like a note from one person to another than the paper money used today.
Money has had an interesting history, from the days of shell money until today. In the Philippines Islands ______ was once used as money.
| A．rice | B．knife | C．cloth | D．wheat |
What was first used as money? ______.
| A．Elephants tusks | B．Cloth | C．Salt | D．Shells |
The first metal coins looked like ______.
| A．square-shaped with some designs on them |
| B．square-shaped with a round hole in the center |
| C．round-shaped with a square hole in the middle |
| D．round-shaped with a round hole in the middle |
The first paper money ______.
| A．was passed from west Asia to China | B．looked like a note used today |
| C．was first used in Europe | D．looked like a piece of fur |
We can infer from the passage that ______.
| A．paper money isn’t difficult to make |
| B．money must be suited to carry |
| C．people need money to exchange goods with each other |
| D．people prefer metal coins to paper notes |
“Mobile phone killed my man,” screamed one headline last year. Also came claims that an unpublished study had found that mobile phones could cause memory loss. And a British newspaper devoted its front page to a picture supposedly showing how mobile phones could heat the brain.
F
or anyone who uses a mobile phone, these are worrying times. But speak to the scientists whose work is the focus of these scares and you hear a different story.
One of the oddest effects comes from the now famous “memory loss” s
tudy. Alan Preece and his colleagues at the University of Bristol placed a device that imitated the microwave radiation of mobile phones to the left ear of volunteers. The volunteers were good at recalling words and pictures they had been shown on a computer screen. Preece says he still can’t comment on the effects of using a mobile phone for years on end. But he rules out the suggestion that mobile phones have an immediate effect on our cognitive（认识的）abilities. “I’m pretty sure there is no effect on short-term memory,” he says.
Another expert, Tattersall, remarked that his latest findings have removed fears about memory loss. One result, for instance, suggests that nerve cell synapses（神经元突触） exposed to microwaves become more — rather than less — receptive to undergoing changes linked to memory formation.
An even happier outcome would be that microwaves turned out to be good for you. It sounds crazy, but a couple of years ago a
team led by William Adey at the Veterans Affairs Medical Center in California found that mice exposed to microwaves for two hours a day were less likely to develop brain tumours when given a cancer-causing chemical.
“If it doesn’t certainly cause cancer in animals and cells, then it probably isn’t going to cause cancer in humans,” says William. And while there’s still no absolute evidence that mobile phone use does damage your memories or give you cancer, the conclusion is: don’t be afraid. Mobile phone users are worried because ______.
| A．they are not sure whether mobile phones can cause memory loss |
| B．it’s said that mobile phones have a lot of side effects |
| C．one headline reported “Mobile phone killed my man” |
D．a British newspaper s howed mobile phones could heat the brain |
According to this passage, we can know that _____.
| A．the mobile phone is a most wonderful invention |
| B．there’s no need to worry about the radiation from mobile phones |
| C．something must be done to stop people using mobile phones |
| D．mobile phone companies shouldn’t cheat customers |
What would be the best title for this passage? ______.
| A．New Mobile Phones. | B．Special Mobile Phones. |
| C．New Special Investigation: Mobile Phones. | D．New Investigation. |
Australia －a huge island continent that lies to the south of Asia. Australia－more than two hundred years old, a nation that is still growing.
Its big cities lie on the southeast coast, this is where most Australians live. Australians prefer to own their own houses, though some live in apartments. Australians are a suburban（郊区的） people. The suburbs surround the cities for many miles, and so efficient transport is of great importance. As the economy grows, so do its industries- a higher level of production, a wider range of products.
The Australian works hard, but he likes his leisure. The climate makes outdoor activities the most popular.
Canberra, the capital of Australia, is a planned modern city located inland. Australia is governed by a parliamentary democracy(议会民主). The representatives of other countries have their embassies here. Australia wants to strengthen relations with her neighbors.
Australia is a strange land
, a land of vast expanses- fertile valleys, snow fields and deserts- also a land with unique animal, many that can not be found on any other continent in the world today.
Much of the continent is dry, but man has utilized the land, made it productive, with its tools, with its technology. This is the driest continent of all, and water is a precious possession, more precious than all other natural resources. Large dams are built to collect the water, there to irrigate the fields of pastures（牧场） and crops.
But Australia is changing. The land of wool and wheat is now 
a land of large-scale industry and mining. The costs of developing the new mineral discoveries are enormous, but the rewards are great too.
Australia — a young and developing nation. Australia — a nation that wants to communicate with its neighbors. Australia is an island located ______ of Asia and its big cities lie ____ of the coast.
| A．to the south; on the southeast | B．to the north; on the southwest |
| C．to the east; on the northeast | D．to the east; on the southwest |
We can infer from the passage that the Australian likes outdoor activities for the _____ climate.
| A．dull and wet | B．fine and shiny | C．gloomy and rainy | D．wet and cold |
____ is the most precious source in Australia.
| A．Mineral resource | B．Animal | C．Desert | D．Water |
Which of the following statements about Australia is wrong?
| A．Australians are a suburban people |
| B．Australia is governed by a parliamentary democracy. |
| C．Australia prefers to live in the downtown of big cities. |
| D．Wool and wheat used to be the main products of Australia. |
Many animals recognize their food because they see it. So do humans. When you see an apple or a piece of chocolate you know that these are things you can eat. You can also use other senses when you choose your food. You may like it because it smells go
od or because it tastes good. You may dislike some types of food because they do not look, smell or taste very nice. Different animals use different senses to find and choose their food. A few animals depend on only one of their senses, while most animals use more than one sense.
Although there are many different types of food, some animals spend their lives eating only one type. The giant panda eats only one particular type of bamboo. Other animals eat only one type of food even when given the choice. A kind of white butterfly will stay on the leaves of a cabbage, even though there are plenty of other vegetables in the garden. However, most animals have a more varied diet. The bear eats fruits and fish. The fox eats small animals, birds 
and fruits. The diet of these animals will be different depending on the season.
Humans have a very varied diet. We often eat food because we like it and not because it is good for us. In countries such as France and Britain, people eat foods with too much sugar. This makes them overweight, which is bad for their health. Eating too much red meat and animal products, such as butter, can also be bad for the health. Choosing the right food, therefore, has become an area of study in modern life. We can infer from the text that humans and animals _________.
| A．depend on one sense in choosing food | B． are not satisfied with their food |
| C．choose food in similar ways | D．eat entirely different food |
Which of the following eats only one type of food?
| A．The white butterfly. | B．The small bird. |
| C．The bear. | D．The fox. |
Certain animals change their choice of food when ___________.
| A．the season changes | B．the food color changes |
| C．they move to different places | D．they are attracted by different smells |
We can learn from the last paragraph that __________.
| A．food is chosen for a good reason | B．French and British food is good |
| C．some people have few choices of food | D．some people care little about healthy diet |
Remembering your dreams will require some efforts on your part. But what your dreams can offer and tell you about yourself will be well worthit. Here are some tips to help recall your dreams:
1. Before going to bed, keep a clear mind. Tell yourself that “I will remember my dreams when I wake up”. This is actually a proven and effective way to recall your dreams.
2. Have a regular bedtime and wake-up time. Make this your routine. Going to bed and waking up at a regular time every day could aid in dream recollection.
3. Avoid alcohol consumption and taking medicine before going to bed. These things may prevent you from remembering your dreams.
4. Keep a pencil and a notebook next to your bed so that they will be within reach as soon as you wake up. Having a small lamp by your bedside is also a good idea, so you wake up in the middle of the night and can record your dreams immediately.
5. Do not get out of bed immediately. Upon waking from a dream, lie still in your bed, keeping your eyes closed and moving as little as possible. Let your mind wander among the images of what you have just dreamed.
6. Write down as many details in your dreams as you can, no matter how seemingly unimportant they may be. Do not judge the content or worry if they make sense.
7. Sometimes it may help to draw pictures. A picture is worth a thousand words, as the saying goes. Even if you are not an artist, a simple drawing can help to recall details of your dreams. This passage tells you ______ .
| A．some useful tips to recall your dreams | B．the way to recall your dreams |
| C．the reason to remember dreams | D．many details in your dreams |
Which of the following ways may NOT be useful for recalling dreams?
| A．Avoiding taking alcohol and medicine. | B．Not getting out of bed immediately. |
| C．Drinking a cup of hot milk. | D．Writing down as many details as possible. |
What does the underlined “it” in the first paragraph mean? ______
| A．Remembering your dreams. |
| B．Some tips to help recall your dreams. |
| C．Your making efforts to remember your dreams. |
| D．What your dreams can offer and tell you about yourself. |
The author uses the saying “A picture is worth a thousand words” to_______.
| A．show that a picture is better than words |
| B．say a picture is equal to thousands of words |
| C．prove that it’s more important to draw pictures than to speak |
| D．indicate drawing pictures really helps to recall dreams |