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Directions: Complete the following passage by using the words in the box. Each word can only be used once. Note that there is one word more than you need.
A. essential B. endangered C. going D. performance E. crises
F. supposed G. consequence H. material I. exposed J. involves
As the pace of life continues to increase, we are fast losing the art of relaxation. Once you are in the habit of rushing through life, being on the 1. from morning till night, it is hard to slow down. But relaxation is 2. for a healthy mind and body.
Stress is a natural part of everyday life and there is no way to avoid it. In fact, it is not the bad thing as is often 3. to be. A certain amount of stress is vital to provide motivation and give purpose to life. It is only when the stress gets out of control that it can lead to poor 4. and ill health.
The amount of stress a person can stand depends very much on the individual. Some people are not afraid of stress, and such characters are obviously prime 5. for managerial responsibilities; others lose heart at the first sign of unusual difficulties. When 6. to stress, in whatever form, we react both chemically and physically. In fact we make choice between “flight or fight” and in more primitive (远古的) days the choices made the difference between life or death. The 7. we meet today are unlikely to be so extreme, but however little the stress, it 8. the same response. It is when such a reaction lasts long, through continued exposure to stress, that health becomes 9. . Since we can’t remove stress from our lives (it would be unwise to do so even if we could), we need to find ways to deal with it.
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Rules on how to be a fit kid
Being fit is a way of saying a person eats well, gets a lot of physical exercise, and has a healthy weight. 1. If you’re a kid who wants to be fit, here are three rules to live by.
1. Eat a variety of foods.
You may have a favorite food, but the best choice is to eat a variety. 2. Taste new foods and old ones you haven’t tried for a while. Some foods, such as green vegetables, are more pleasing the older you get. Shoot for at least five servings of fruits and vegetables a day--two fruits and three vegetables.
2. 3.
What does it feel like to be full? When you’re eating, notice how your body feels and when your stomach feels comfortably full. Sometimes, people eat too much because they don’t notice when they need to stop eating. 4. And over a period of time, overeating can lead to unhealthy weight gain.
3. Limit screen time.
What’s screen time? It’ s the amount of time you spend watching TV or DVDs, playing video games, and using the computer. The more time you spend on these sitting-down activities, the less time available for active stuff, like basketball, bike riding and swimming. 5.
These rules aren’t magic. However, follow them most of the time and you can become a fit kid sooner or later.
A. Drink water and milk.
B. Listen to your body.
C. Eating too much can make you feel uncomfortable.
D. There’re a lot of discussions these days about fit kids.
E. Try to spend no more than 2 hours a day on screen time.
F. Ask your parents to help you do your favorite activities regularly.
G. If you eat different foods, you’re more likely to get the nutrients your body needs.
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下面文章中有5处需要添加小标题。请从以下选项（ A、B、 C、D、E和F）中选出符合各段意思的小标题，并在答题纸上将相应选项的标号涂黑。选项中有一项是多余选项。
| A. Find a fiction book. B. Learn how to read your card. C. Find your non-fiction book. D. Decide if you want to search by author, title or subject. E. Learn to find the card you need. F. Understand the Dewey Decimal System. |
The card catalog was once found in every library. Most libraries have now replaced the card catalog with a computerized cataloging system. However, some libraries still have the set of drawers with thousands of cards inside, and some library patrons still prefer the hands-on approach to researching the information they need. Cards are set up alphabetically in long drawers. Different types of cards are kept separate from each other so you may search by author, title or subject. Learning to use the card catalog can help you find the book you want without waiting for a computer terminal.
Instructions:
1______
Once you have found the card for the book you want, write down the numbers and letters at the top of the card and the title and author of the book. The numbers at the top are how the book is cataloged using the Dewey Decimal System, and the letters are the first three letters of the author's last name. Your library will have the numbers at the end of the stacks (the shelves of books), so find the stack your book is located in, then scan the shelves of that stack until you locate the number on the card. More than one book can have the same number, so you will narrow down your search if you have the first three letters of the author's name.
2______
The cards in a card catalog reference other cards. An author card will also have a book title and subject, a title card will have the author and subject, and a subject card will have author and title. This is handy for cross-referencing, so if you want to read a book on beekeeping, you can look that up in the subject cards and find an individual card on each book the library carries on beekeeping.
3______
If you want to look up a book by Stephen King, find the author cards in your library's card catalog, and look under "K". The cards are organized by last name and are broken down into the individual drawers. Sometimes a letter will take up more than one drawer, so you may find drawers that have "Ka-Ke" and then "Ki-Kr." Stephen King will be in the drawer with "Ki-Kr." You would find a card in a similar manner by title or by subject by finding the drawer with the corresponding letters such as "Be" for beekeeping in the subject cards or "Wr" for "The Writer's Market" ("The" is not considered part of titles).
4______
This isn't required to use the card catalog, but it can make searching for your book a little easier. The numbers range from 000 to 999; 000-099 are general subjects, 100-199 are psychology and philosophy, 200-299 is religion, 300-399 is social science, 400-499 is language, 500-599 are natural science and math, 600-699 is applied sciences, 700-799 is art, 800-899 are literature and plays, and 900-999 are geography and history.
5______
The author card will have a call number at the top, a line with the author's name with last name first, then lines for the title of the book, its publisher, a brief summary and subject listings. For an author with many books like Stephen King, there will be a card for each of his books in alphabetical order. Title cards are similar but have the title first, then the author in the following line. Subject cards have the subject in all capital letters at the very top of the card and the same information as on an author's card. Many cards on the same subject will be organized by the authors' last names. 查看习题详情和答案>>
If two scientists at Los Alamos National Laboratory are correct, people will still be driving gasoline-powered cars 50 years from now, giving out heat-trapping carbon dioxide into the atmosphere — and yet that carbon dioxide will not contribute to global warming.
In a proposal by two scientists, vehicle emissions (排放) would no longer contribute to global warming. The scientists, F. Jeffrey Martin and William L. Kubic Jr., are proposing a concept, which they have named Green Freedom, for removing carbon dioxide from the air and turning it back into gasoline.
The idea is simple. Air would be blown over a liquid solution (溶液) of potassium carbonate, which would absorb the carbon dioxide. The carbon dioxide would then be put to chemical reactions that would turn it into fuel: gasoline or jet fuel.
This process could change carbon dioxide from an unwanted, climate-changing pollutant into a vast resource for renewable fuels. The cycle — equal amounts of carbon dioxide produced and removed — would mean that cars, trucks and airplanes using the synthetic (合成的) fuels would no longer be contributing to global warming.
Although they have not yet built a synthetic fuel factory, or even a small model, the scientists say it is all based on existing technology. “Everything in the concept has been built, is operating or has a close cousin that is operating,” Dr. Martin said.
The Los Alamos proposal does not go against any laws of physics, and other scientists who have independently suggested similar ideas. Dr. Martin said he and Dr. Kubic had worked out their concept in more detail than previous proposals.
There is, however, a major fact that explains why no one has built a carbon-dioxide-to-gasoline factory: it requires a great deal of energy.
According to their analysis, their concept, which would cost about $5 billion to build, could produce gasoline at an operating cost of $1.40 a gallon and would turn economically practical when the price at the pump hits $4.60 a gallon.
Other scientists said the Los Alamos proposal perhaps looked promising but could not evaluate it fully because the details had not been published.
“It’s definitely worth pursuing,” said Martin I. Hoffert, a professor of physics at New York University. “It’s not that new an idea. It has a couple of pieces to it that are interesting.”
67. What is the idea of the project being discussed in the article?
A. Recycling the carbon dioxide from cars back into gasoline.
B. Create a new gasoline that gives off very little carbon dioxide.
C. Using a special liquid solution to absorb carbon dioxide from cars.
D. Build synthetic fuel factories to remove carbon dioxide from the air.
68. What’s the name given to the new concept?
A. Synthetic Fuel. B. Green Freedom.
C. Renewable Fuel. D. Carbon-dioxide-to-gasoline Factory.
69. Which of the following is NOT one of the benefits of this new concept as suggested in the article?
A. Reduction of global warming. B. Cheaper gasoline for cars.
C. Longer life of cars. C. Less pollution of the atmosphere.
70. What’s the biggest problem in realizing the concept according to the report?
A. Shortage of starting funds. B. Immature technology involved.
C. All previous similar attempts have failed.
D. The use of too much energy in running the fuel factory.
查看习题详情和答案>>Complete the following passage by using the words in the box. Each word can only be used once. Note that there is one word more than you need.
| A. comments B. impression C. drawn D. fashionable E. influence F. light up G. right H. occupy I. truly J. variety |
Shanghai dazzles (使目眩) visitors with its of places new and old, East and West New Shanghai begins at the airport with a step onto the Maglev, Shanghai’s high-speed train. Reaching 431 km/h, it whisks（迅速移动）travelers the 32 kilometers from the airport to Pudong in 8 minutes. Visitors disembark (登陆) from the Maglev at Pudong, where Shanghai’s modern side awaits outside the station.
The West’s on Shanghai is very obvious on the Bund. European countries and America established concessions here between the early 1840s and 1943. Visiting the Bund takes one back to that era. Fifty-two buildings, all built in European styles, line this famous section of East Zhongshan First Road.
The HSBC Tower, which now houses the Shanghai Pudong Development Bank, dominates the Bund. Inside, visitors gazes are to colorful mosaics (马赛克) on the dome ceiling.
Just south of the Bund, the traditional buildings and tiny lanes of the old Chinese city take visitors back in time. Here, the Yuyuan Gardens are the main attraction. Built in 1577 by a government official for his parents, the Yuyuan Gardens an area of two hectares（亩）.
Shanghai’s premier shopping destination, Nanjing Road boasts 5.5 km of shops, malls, restaurants and excitement. Colorful neon（霓虹灯）signs the street at night when thousands of people flood the area.
Restored shikumen exteriors open into restaurants, shops and art galleries. Photographer Guo Changyao
, “In the 21st century, if you don’t go to Xintiandi, then you haven’t seen Shanghai.”
To experience Shanghai, one must explore all its sides. The beauty of the city lies in its old and new, West and East.
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