In summer, millions of people will head for the beach. And while the ocean can be a great place to swim and play, it may also be useful in another way. Some scientists think that waves could help make electricity.
“Have you ever been on a surfboard or boat and felt yourself being lifted up by a wave? Or have you jumped in the water and felt the energy as waves crashed over you?” asked Jamie Taylor of the Wave Energy Group at the University of Edinburgh in Scotland．“There is certainly a lot of energy in waves．”
Scientists are working on using that energy to make electricity．
Most waves are created when winds blow across the ocean．“The winds start out by making little ripples (波纹) in the water, but if they keep on blowing , those ripples get bigger and bigger and turn into waves, ”Taylor said．“Waves are one of nature’s ways of picking up energy and then sending it off on a journey．”
When waves come towards the shore, people can set up dams or other barricades to block the water and send it through a large wheel called a turbine (涡轮) ．The turbine can then power an electrical generator (发电机) ．
The United States and a few other countries have started doing research on wave energy , and it is already being used in Scotland．
The resource is huge．We will never run out of wave power, besides, wave energy does not create the same pollution as other energy sources, such as oil and coal．
Oceans cover three quarters of the earth’s surface．That would make wave power seem perfect for creating energy around the world．There are some drawbacks, however．
Jamie Taylor said that wave power still cost too much money．He said that its effects on animals in the sea were still unknown．Plus, wave power would get in the way of fishing and boat traffic．
With more research, however, “many of these problems might be overcome,” Taylor said．“Demand for energy to power our TVs and computers, drive our cars, and heat and cool our homes is growing quickly throughout the world．Finding more energy sources is very important, for traditional sources of energy like oil and gas may run out some day．”
In the future, when you turn on a light switch, an ocean wave could be providing the electricity!
68．Which of the following is NOT true?
A．Wave power costs too much money．
B．Wave energy creates the same amount of pollution as other energy sources．
C．Wave power affects fishing and boat traffic．
D．Wave power may affect marine animals．
69．We can infer from the passage that ______．
A．finding more new energy sources is not necessary because of wave energy
B．wave energy is a resource that will never run out and is used all over the world
C．wave power is perfect for creating energy around the world
D．wave power doesn’t create any pollution
70．The underlined word “drawbacks” probably means ______．
A．regrets B．adventures C．disadvantages D．difficulties
71．What can be the best title for the passage?
A．How to Get Electricity by Waves． B．The Advantages of Wave Energy.
C．Can Waves Make Electricity? D．The Disadvantages of Wave Energy．
To get an extra 14 years of life, don't smoke, eat lots of fruits and vegetables, exercise regularly and drink alcohol in a proper amount．That is according to a study published this Monday in the Public Library of Science Medicine Journal．
After tracking more than 20,000 people aged 45 to 79 years in the United Kingdom from about 1993 to 2007, Kay-Tee Khaw of the University of Cambridge and his colleagues found that people who adopted these four healthy habits lived all average of 14 years longer than those who didn't．
“We've known for a long time that these behaviors are good things to do, but we've not seen this benefit before, ” said Susan Jebb, head of Nutrition and Health at Britain's Medical Research Council．“The benefit was also seen regardless of whether or not people were fat and what social class they came from．”
Study participants（参与者）scored a point each for not smoking, regular physical activity, eating five servings of fruits and vegetables a day and moderate alcohol intake．
Public health experts said they hoped the study would inspire governments to introduce policies helping people to adopt these changes．But because the study only observed people rather than testing specific changes, it would be impossible to conclude that people who suddenly adopted these healthy behaviors would surely gain 14 years．
“We can't say that any person could gain 14 years by doing these things, ”said Dr．Tim Armstrong, a physical activity expert at the World Health Organization．“The 14 years is an average across the population of what's theoretically（理论上地）possible．”
“Most people know that things like a good diet matter and that smoking isn't good for them, ” Susan Jebb said．“We need to work on providing people with much more practical support to help them change．”Which of the following DOESN'T belong to the four healthy habits?
| A．Eat five servings of fruits and vegetables a day． |
| B．Do proper exercise in the morning every day． |
| C．Drinking alcohol in the proper amount every day． |
| D．Having a cigarette before going to bed every day． |
We can learn from the passage that ．
| A．Susan Jebb did not take part in the study． |
| B．the study observed people as well as tested specific changes． |
| C．there's no need for people under 45 to adopt these good habits． |
| D．only those from first class can benefit from these healthy behaviors． |
What can be inferred from the passage?
| A．All the people are well aware of the harm of their bad habits． |
| B．People aged 45 to 70 have bad habits in the United Kingdom． |
| C．Governments should take measures to help people change their bad habits． |
| D．People have adopted the four healthy habits after knowing they're good． |
What would be the best title for this passage?
| A．Smoking and Drinking Cuts You 14 Years |
| B．How to Live a Much Healthier Life |
| C．How to Make Your Life Longer Than Others |
| D．Healthy Habits May Give Extra 14 Years |
“In only six days I lost seven pounds of weight.”
“Two full inches in the first three days!”
These are the kinds of statements used in magazine, newspaper, radio and television ads, promising good shapes and new look to those who buy the medicine or the device. The promoters of products say they can shape the legs, slim the face, smooth wrinkles, or in some other way add to beauty or desirability.
Often such products are nothing more than money-making things for their promoters. The results they produce are questionable, and some are dangerous to health.
To understand how these products can be legally promoted to the public, it is necessary to understand something of the laws covering their regulation. If the product is a drug, FDA (Food Drug Administration) can require proof under the Food, Drug and Cosmetic Act that it is safe and effective before it is put on the market. But if the product is a device, FDA has no authority to require premarketing proof of safety or effectiveness. If a product already on the market is a danger to health, FDA can request the producer or distributor to remove it from the market voluntarily, or it can take legal action, including seizure (查封) of the product.
One notable case a few years ago involved an electrical device called the Relaxacisor, which had been sold for reducing the waistline. The Relaxacisor produced electrical shocks to the body through contact pads. FDA took legal action against the distributor to stop the sale of the device on the grounds that was dangerous to health and life.
Obviously, most of the devices on the market have never been the subject of court proceedings (法律诉讼), and new devices appear continually, Before buying, it is up to the consumer to judge the safety or effectiveness of such items.It can be inferred that ads mentioned in the text are_____.
| A．objective | B．costly | C．unbelievable | D．illegal |
The Relaxacisor is mentioned as______.
| A．a product which was designed to produce electricity |
| B．a product whose distributor was involved in a legal case |
| C．a successful advertisement of a beauty product |
| D．an example of a quality beauty product |
The author intends to______.
| A．make consumers aware of the promoters’ false promise |
| B．show the weakness of the law on product safety |
| C．give advice on how to keep young and beautiful |
| D．introduce the organization of FDA |
Which of the following is true according to the text?
A. The court is in charge of removing dangerous products.
B. New products are more likely to be questionable.
C. The production of a device must be approved by FDA.
D. The promoters usually just care about profits.
From the first use of the rocket to carry satellites into space to the setting up of space stations, human beings have been putting great effort into space research. And so far, we have achieved many successes. But there are still numerous tasks in front of us and we should not stop trying to progress.
The international space station (ISS) is an important step we should take in space exploration. It is not only helpful but also essential. It provides a proper space environment for many experiments that we have wanted to do for a long time. It is also a base for the observations of the earth and the universe. It could also be an important base for later travel to the moon and Mars. In a word, if we want to explore space more, the first thing we should do is to set up a space station.
As the space station costs a lot of money, it is hard for one country alone to establish one. The USA seems to be the only country that has the ability to build a space station alone，and it has tried to do so, but not very successful. So it aggregated many other countries to work on it together. Though it is still extremely expensive, it is much cheaper than doing it alone. It is really a job that needs everyone’s effort and will benefit everyone.
Led by the U.S. and Russia, the ISS is a joint project between six space agencies involving 16 countries. Called the greatest achievement in human cooperation, the ISS has come to the end of a ten-year’s hard work in construction. China has applied for participation in (taking part in) the project many times. Unfortunately all the applications were rejected, which drove China onto the path of independent development. As the Long March Ⅱ-F/T1 carrier rocket blasted off (leave the ground) and successfully carried the Tiangong-1 into space on September 29, 2011, China takes a big step toward its Space Station Era.
Some West media suggested that the successful launch of Tiangong-1 would disturb the balance of global space power, raising concerns (关注) about “China threat”. China’s space project is not designed for military (军事的) purpose but for developing space technology to explore space resources and make use of them for mankind’s well-being.From Paragraph 2 we learn that ________.
| A．the necessity of building the international space station is not realized now |
| B．many experiments have been done in the international space station |
| C．the international space station is necessary for people to explore space more |
| D．people have traveled to Mars from the international space station |
Which of the following is NOT a reason for countries’ cooperation in building the international space station?
| A．That it requires a lot of money. |
| B．That it needs everyone’s effort. |
| C．That it will benefit every participating country. |
| D．That it is too far away from the earth. |
The underlined word “aggregated” in Paragraph 3 can be replaced by “________”．
| A．united | B．scolded | C．allowed | D．forbade |
China wants to build its space station in order to __________.
| A．break the balance of global space power |
| B．show that China can build space station alone |
| C．raise international concerns about “China threat” |
| D．make use of space peacefully for mankind’s well-being |
As you grow older, you’ll be faced with some challenging decisions—like whether to cut class or try cigarettes. Making decisions on your own is hard enough, but when other people get involved and try to pressure you one way or another it can be even harder. People who are your age, like your classmates, are called peers. When they try to influence how you act, to get you to do something, it’s called peer pressure.
Peers can have a positive influence on each other. Maybe another student in your science class taught you an easy way to remember the planets in the solar system. Maybe you got others excited about your new favorite book, and now everyone’s reading it. These are examples of how peers positively influence each other.
Sometimes peers influence each other in negative ways. For example, a few kids in school might try to get you to cut class with them; your soccer friend might try to convince you to be mean to another player and never pass him the ball.
It is tough to be the only one who says “no” to peer pressure, but you can do it. Paying attention to your own feelings and beliefs about what is right and wrong can help you know the right thing to do.
You’ve probably had a parent or teacher advising you to “choose your friends wisely.” Peer pressure is a big reason why they say this. If you choose friends who don’t cut class, smoke cigarettes, or lie to their parents, then you probably won’t do these things either, even if other kids do.
If you continue to face peer pressure and you’re finding it difficult to handle, talk to someone you trust. Don’t feel guilty if you’ve made a mistake or two.For whom is the passage most probably written?
| A．Students. | B．Parents. | C．Teachers. | D．Doctors. |
In the last three paragraphs, the author mainly_____.
| A．explains why friendship is so important |
| B．gives advice on how to deal with peer pressure |
| C．discusses how peers influence us |
| D．shows how to make more good friends |
Which of following may help handle peer pressure?
| A．Spending more time with classmates. |
| B．Taking up more relaxing hobbies. |
| C．Choosing friends with no bad habits. |
| D．Helping others who are in trouble. |
What is the topic of the passage?
| A．Friendship. | B．Making decisions | C．Self-confidence | D．Peer pressure |
阅读下面短文并回答问题，然后将答案写到相应的位置上（请注意问题后的词数要求）。
JAY Chou, S.H.E. and Happy Boys? They are some of the singers who keep your music world busy. But__________ Peking Opera? Is it only the favorite pastime of your grandfather?
Now, you have the chance to get to know the real beauty of this traditional art. This term, a Peking Opera project is starting in 200 schools in 10 provinces and municipalities (直辖市). It will involve 15 works of Peking Opera both classic and modern.
So how much do you know about this 200-yare-old art? Peking Opera combines instrumental music, singing, dancing, acting and acrobatics(杂技). Full of Chinese cultural elements. Peking Opera presents to the audience an encyclopedia(百科全书)of Chinese culture with unfolding stories, beautiful paintings, wonderful consumes and graceful gestures.
The art form has created many “firsts” in Chinese dramas: the abundance of repertoires (曲目), the number of artists and opera troupes and audience. So it is called the national opera of China.
There are five main roles in Peking Opera: sheng, dan, jing, mo and chou. Sheng is
The leading male actor. Dan is the female roles. Jing refers to male roles with colored face paintings who represent warriors (战士), heroes, statesmen, adventurers and demons(魔鬼). Mo is a minor male role. Chou is a male comic character with a white patch on the nose. They play roles of wit and humor. It is these characters that keep the audience laughing to ease tension in some serious plays.What is the best title of the passage? (no more than 10 words)
Complete the following statement with proper words. (no more than 4 words)
Is it only the thing that your grandfather like best to ?Please fill in the blank with proper words or phrases to complete the sentence.(no more than 10 words)
What’s your opinion about the Peking Opera project started in schools?
(no more than 30 words)What does “it” refer to? (no more than 3 words)
粤公网安备 44130202000953号