Annealing
Annealing is a way of making metal softer by heating it and then letting it cool very slowly, if metal is heated and then cooled very quickly, for example by dipping(浸) it in water, it will be very hard but also very brittle(脆)—that is, it will break easily. Metal that has been annealed is soft but does not breaks as easily. It is possible to make metal as hard or as soft as is wished, by annealing it. The metal is heated, and allowed to cool slowly for a certain length of time. The longer the heated metal takes to cool slowly, the softer it becomes. Annealing can also be used on other material, such as glass.
1. Annealing can make metal ____
A. hard and tough(韧) B. hard but brittle C. soft but tough D. soft and brittle
2. Why do people put hot metal in water?
A. To make it hard. B. To make it soft. C. To make it cool. D. To make it brittle
3. In annealing, the required hardness of a metal depends on ______
A. the quantity of water used B. the temperature of the metal
C. the softness of the metal D. the timing of the operation
4. As suggested by the text, how can glass be made less brittle?
A. It can be heated and then cooled quickly.
B. It can be cooled and then heated slowly.
C. It can be heated and then cooled slowly.
D. It can be cooled and then heated quickly.
You maybe surprised to learn that one of the best steps you can take to protect your health is to step outside and spend some time in the grass, dirt and water．
Our ancestor
s enjoyed the healing power of nature , and now scientists are starting to catch up．According to research in recent years, just having a view of nature has been shown to improve hospital patients' recovery and reduce illness rates among office workers．Also, exposure （曝露）to wildlife, horseback riding, hiking, camping and farms can be helpful for a variety of health conditions in adults and children．
Much of this type of research is focusing on children, and in fact an entire movement has quickly developed to connect kids with the healing power of nature．
Obesity （肥胖）．Rates of childhood obesity have grown sharply in recent years, and this is partly because of reduced outdoor activity time．Increasing the time students spend learning about nature, both in and outside the classroom, would help solve this problem．Such lessons are often more attractive for students and often lead them to become more active outside．
Attention deficit hyperactivity disorder （ADHD） （注意力缺失症）．Exposure to ordinary natural settings （环境） in the course of common after-school and weekend activities may be effective in reducing attention deficit symptoms in children．Participation in green activities —such as nature walks—helped ADHD patients from a wide range of backgrounds to stay focused and complete tasks．
Stress．Access to nature, even houseplants, can help children cope with stress．
Depression and seasonal emotional disorder．Major depression requires medical treatment, but physical activity, especially outdoors, can help ease symptoms．For your average case of winter blues, experts suggest spending time outside every day and, if possible, taking the family to a sunny vacation spot in mid-winter．
Experts emphasize that you needn' t go to wilderness preserves to enjoy nature' s benefits—simply walking in a city park or growing in a rooftop garden can make a difference．It can be inferred from the first two paragraphs that____．
| A．ancient people were not familiar with the healing power of nature． |
| B．modern people are not familiar with the healing power of nature． |
| C．the healing power of nature works better on children． |
| D．the healing power of nature works better on office workers． |
According to Para．4, lessons about nature_____．
| A．should engage parents in them |
| B．should take place outdoors |
| C．are used widely at schools |
| D．are liked by students |
Exposure to green areas in neighborhoods can_____．
| A．improve children' s skills at learning |
| B．help reduce ADHD symptoms |
| C．treat major depression |
| D．cure winter blues |
What can be inferred from the last paragraph?
| A．You can only enjoy nature's benefits in the wilderness． |
| B．A common natural setting is beneficial to your health． |
| C．A city park and a rooftop garden have different benefits． |
| D．Too many people in the wilderness will reduce the benefits of nature． |
Attitude is one of the most important factors in determining success for all people．Successful people have one thing in common—an expectant （期待的） attitude of success．Most people begin each morning in neutral and react to events of the day．You can be one of the successful people in life by starting each day with a positive attitude, a gratitude for the opportunities you have, and an expectancy （期待） of the best for yourself．
People tend to live up to expectations．We get out of life just about what we put into it．Our environment becomes a mirror of our spirit, our attitude, and expectations．If we set a great goal, we get great results．If we have a fair goal, we accomplish fair results, and if we have a poor goal, we accomplish poor results．The world will give you back what you expect, so expect the very best．Don't be defensive or doubtful．Nothing changes unless you do．Before you can do something, you've got to be something．Know that you have worth and value．Show that to the world．
Treat everyone you come in contact with as the most important person in life．It will build self-esteem （自尊心）．Smile! You'll be rewarded with a returned smile．Don't react to others rudely．Forgive everyone who ever hurt you．Then, forgive yourself．Keep yourself healthy．Exercise．Eat a proper diet．Display an attitude of confidence．
Develop these good habits and your expectancy will be rewarded by successes．This attitude will put you into that group of people who are truly successful, because you will know and understand how an expectant attitude enhances （提高） every aspect of your life．According to the author, we are likely to achieve success if we____．
| A．take a positive attitude |
| B．hold on to our dreams |
| C．have a good opportunity |
| D．show gratitude every day |
We learn from Paragraph 2 that____．
| A．success mainly depends on your efforts |
| B．our environment reflects what we think |
| C．the greater our goal, the better results we will get |
| D．it is our determination that decides our future |
Paragraph 3 tells us that____．
| A．building self-esteem is important |
| B．we should treat everyone else fairly |
| C．if treated kindly, others are friendly |
| D．it makes good sense to forgive others |
The author's purpose of writing the text is to____．
| A．share his view point about life |
| B．offer advice on confidence building |
| C．suggest some ways to acquire success |
| D．stress the importance of positive attitude |
Liu Jiaoyang, 16, carefully winds a bobbin（绕线筒） with thread, places it on her sewing machine （缝纫机） and then presses her foot down to begin sewing．While she' s doing this, she pretends to guide fabric （布料）through the machine．Liu looks forward to the class when she can work on a piece of real cloth, and make a beautiful dress．
Each Tuesday afternoon, after the bell rings for the fourth period, Liu becomes a fashion designer．At the same time, the rest of the students at the High School Attached to Yunnan Normal University in Kunming are also having classes a little bit different from the usual ones．Some students dance, others create robots, and still others review films．These are just a few of the other 27 elective （选修的） courses besides Liu's sewing class that the school began to offer last month．
"The fashion design class has become the bright point of my week．I learn how to choose colors and fabrics （织物） as well as sewing and sketching （素描） skills．It's all helping me to realize the dream of becoming a fashion designer I' ve had since I was a little girl, " Liu said．
Design is Liu' s favorite, but for other students the electives are interesting lessons which relieve （舒缓） the pressures of schoolwork．Some students, for example, are learning how to play bridge．Chen Xi,15, is one of them．She said, "Many people think that playing a card game like this in class is a waste of time．But in fact, bridge is a very challenging game that helps develop memory and math skills．"How often do the students have elective classes?
A．Once a week B
．Once a month C．Once a term D．Once a yearHow many elective courses had the school offered by last month?
| A．27 | B．28 | C．26 | D．25 |
Why did the students like to have elective classes?
| A．Because the elective classes are easier． |
| B．Because they needn't do any homework in the elective classes． |
| C．Because they can get an opportunity to relieve their pressures． |
| D．Because they want to be fashion designers in the future． |
According to the passage many people think____in class is a waste of time．
| A．dancing | B．creating robots |
| C．playing a card game | D．reviewing films |
VINCOUVER （Reuters）——South Korea' s Kirn Yuna can finally relax and does fiot need to think 
about the future after she won the gold medal in the women' s figure skating （花样滑冰）on Thursday．
The 19-year-old was the overwhelming （压倒性的）favorite to finish top of the podium （颁奖台） but said the pressure going into the event was large．
"I feel now as if a huge burden has been lifted, " the Games' highest-earning female athlete-she makes an estimated $8 million a year —said after her near-perfect program where she nailed all of her 11 jumps．
"I will enjoy this moment and think about things later．I was just thrilled on the podium and I feel so relieved．I had been running toward this dream of the Olympics and was so happy to be here, " she said．
"Since I have achieved the most important goal in my life．I am going to enjoy this moment for a while and then think about what I am going to do," a smiling Yuna said．
Japanese rival Mao Asada took silver while Joannic Rochette of Canada grabbed the bronze medal four days after her mother died．
"I still cannot believe I did what I wanted to do at the Olympics．I have been dreaming about this moment and I cannot believe it is not a dream any more．" said Yuna．
South Korea was counting on her to grab their first gold medal in figure skating and the first Winter Olympics gold medal outside short track and speed skating．
"I was just happy to have skated a clean program．It was the first
time I skated two clean programs．During the program when I finished all elements I thought 'this is going to be yeah．．．this is it'．"Kim Yuna felt relaxed because .
| A．the competition was over |
| B．her dream finally came true |
| C．she won a large amount of money |
| D．she became well-known overnight |
According to the passage, Kim Yuna____．
| A．had a strong sense of team spirit in the Games |
| B．won the first gold medal for South Korea in the Winter Olympics |
| C．had expected she would surely win the gold medal |
| D．joined in the competition with great pressure from her country |
The underlined word '"riva” lin Paragraph 6 most probably means"____"．
| A．competitor | B．coach | C．judge | D．hostess |
It is known from the passage that____．
| A．Kim Yuna is a person of great confidence |
| B．Joannie Rochette joined in the games with great sorrow |
| C．Kim Yuna is the richest athlete in South Korea |
| D．Mao Asada took silver medal by accident |
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Future success depends on the ability to learn．Here are the answers to the questions most often asked by students．Read this book and learn:
*What the three barriers to study are and what to do about them
* What to do if you get tired of a subject you are studying
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Buy and read the Basic Study Manual and use it to dramatically improve your ability to study．
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L．Ron Hubbard’s study technology for teenagers opens the door to their future success by giving them advice on how to study and learn．Fully illustrated（插图）for easy comprehension．
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The basics of effective study for 8 to 12-year-olds, fully illustrated．Children who read and apply the materials in this book can regain their liking for study．Get this book for a child you want to see win at his studies!
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In spite of billions of dollars spent on “educational research”, children are not taught the most basic skills of learning: how to use a dictionary．Written for children 8 to 12-year-old, this fully illustrated book will teach your children:
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At last, you’ll just pay 50% for these books before May 1, 2007．（260 words）The four books can mostly satisfy_________．
| A．teachers | B．children | C．adults | D．parents |
If you want to improve your ability to study, you’ll probably choose_________．
| A．Basic Study Manual | B．Study Skills for Life |
| C．Learning How to Learn | D．How to Use a Dictionary Picture Book for Children |
If you buy all the fully illustrated books before May 1, 2007, you will pay about_________
| A．$56 | B．$111 | C．$46 | D．$92 |
This passage aims to_________．
| A．introduce new books to readers |
| B．guide readers to choose books |
| C．encourage people to buy the books |
| D．enlarge students’ knowledge about books |
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