题目内容

Leon, 12, was born without fingers on his left hand.That didn't -stop him from being able to do many tasks. But Leon could not grasp more than one object at a time. So Leon's father, Paul, created a prosthesis(假肢),using a 3D printer. Now Leon has fingers that open and close."It was a do-it-yourself, father and son adventure," says raw.

When Leon was a baby, his doctor advised his parents not to give him a prosthetic hand until he was in his early teens. "The doctor said Leon should first learn to get full use out of the hand he was born with," says Paul. As Leon got older, his father looked into buying a prosthetic hand, which can cost as much as $30,000. Paul found a more affordable solution.

One day, Paul discovered a video on the Internet about Robohand, a prosthesis created with a 3Dprinter. He downloaded the free instructions and called Robohand's creators for advice. They told him all he needed was a 3D printer一which costs around $2,000- and some materials.

Luckily, Leon's school had recently purchased a 3D printer and it offered to help Paul build the hand for Leon.“We used a soccer shin guard(护胫),cardboard, and tape. They cost about$10," says Paul.

With his new hand, Leon can do things better. "I can help my mom more, because now I can carry two grocery bags,”he says.

Leon's father has already built .several hands for Leon. Leon helps design each one. He says there's one thing in particular that he wants to do with a future prosthesis.“The goal," he tells the

reporter from the local evening paper,“is to be able to tie my shoelaces:'

1.Why did Leon's doctor disapprove of his using a prosthesis in his childhood?

A.The prosthetic technology was underdeveloped then.

B. A prosthesis was very expensive at that time.

C. To master the disabled hand was important.

D. The original hand could do many tasks.

2.Leon's father managed to get Leon a new hand by

A.collecting money on the Internet.

B. buying a prosthetic hand

C. purchasing a 3D printer

D. printing a hand

3.The materials used for Leon's hand can be described as

A. cheap and common B. strange and valuable

C. personal and lovely D. basic and solid

4.Where can the passage be taken from?

A. An advertisement B. A newspaper

C. A poster D. A travel guide

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How Can I Fight Laziness?

Lazy people will never achieve anything in life. However, laziness can be defeated once a few changes have been made in your mind.

1. Many people lack sleep constantly, since they stay up too late and get up too early to prepare for work. These people have little motivation once they arrive home. Laziness works hand in hand with a lack of motivation and a tendency to put off things. By adjusting your sleep schedule to provide a few more hours of meaningful rest, you can fight laziness throughout the day.

Another way to fight laziness is to change your mind from passive to active. Some people treat their lives as if they were pushed from task to task. Others take a more proactive approach, viewing each task as a challenge they must overcome alone. 2.

Some people fight laziness by removing the temptations(诱惑) that surround them. A television in the living room may provide entertainment, but watching too much TV often contributes to laziness. 3. Complete a few tasks and reward yourself with what you enjoy, such as a good dinner or a film.

Laziness can also be a lasting problem at home. Couples and children may all have different energy levels, but laziness can be spread if not dealt with immediately. 4. Be the first to collect and wash dishes after a meal. Others in the home may eventually follow your example and perform their own task. It is difficult to practise laziness when you are surrounded by motivated people.

5. Enough exercise and a balanced diet can help you to develop a healthy lifestyle, thus enabling you to have more energy and help lift your spirits.

A. To fight family laziness, set an example.

B. One way to fight laziness is to get enough sleep.

C. Knowing how to fight laziness is important.

D. Finally, taking exercise regularly can help you fight laziness.

E. With strong determination, you will be able to achieve your goal.

F. Laziness sets in when you no longer feel in charge of your own life.

G. Create a reward system for yourself, just as parents do for the children.

Ever walked to the shops only to find, once there, you’ve completely forgotten what you went for? Or struggled to remember the name of an old friend? For years we’ve accepted that a forgetful brain is as much a part of aging as wrinkles and gray hair. But now a new book suggests that we’ve got it all wrong.

According to The Secret Life of the Grown-up Brain, by science writer Barbara Strauch, when it comes to the important things, our brains actually get better with age. In fact, she argues that some studies have found that our brain hits its peak between our 40s and 60s — much later than previously thought.

Furthermore, rather than losing many brain cells as we age, we keep them, and even produce new ones well into middle age. For years it’s been assumed that brain, much like the body, declines with age. But the longest, largest study into what happens to people as they age suggests otherwise.

This continuing research has followed 6,000 people since 1956, testing them every seven years. It has found that on average, participants performed better on cognitive (认知的) tests in their 40s and 50s than they had done in their 20s. Specifically, older people did better on tests of vocabulary, verbal memory (how many words you can remember) and problem solving. Where they performed less well was number ability and perceptual speed — how fast you can push a button when ordered. However, with more complex tasks such as problem-solving and language, we are at our best at middle age and beyond. In short, researchers are now coming up with scientific proof that we do get wiser with age.

Neuroscientists are also finding that we are happier with aging. A recent US study found older people were much better at controlling and balancing their emotions. It is thought that when we’re younger we need to focus more on the negative aspects of life in order to learn about the possible dangers in the world, but as we get older we’ve learned our lessons and are aware that we have less time left in life: therefore, it becomes more important for us to be happy.

1.Barbara Strauch probably agrees that ______.

A. the young are better at handling important things

B. people’s brains work best between their 40s and 60s

C. aging leads to the decline of the function of the brain

D. wrinkles and gray hair are the only symbols of aging

2.The continuing research has found older people perform better on ______.

A. perceptual speed B. number ability

C. vocabulary tests D. body balance

3.People are happier with aging because ______.

A. they learn to value the time left

B. they know how to share feelings

C. they cannot focus on negative aspects

D. they do not realize the possible dangers

4.What is the main idea of the passage?

A. People get happier with age.

B. People get wiser with age.

C. People get more forgetful with age.

D. People get more self-aware with age.

Wilma Subra had no intention of becoming a public speaker. After graduating from college with degrees in chemistry and microbiology, she went to work at Gulf South Research Institute in Louisiana.

As part of her job, she conducted field research on toxic (poisonous) substances in the environment, often in minority communities located near large industrial polluters. She found many families were being exposed to high, sometimes deadly levels of chemicals and other toxic substances. But she was not allowed to make her information public.

Frustrated by these restrictions, Subra left her job in 1981, created her own company and has devoted the past two decades to helping people fight back against giant industrial polluters. She works with families and community groups to conduct environmental tests, interpret test results, and organize for change.

Because of her efforts, dozens of toxic sites across the country have been cleaned up. And one chemical industry spokesperson calls her “a_top_gun” for the environmental movement.

How has Subra achieved all this? Partly through her scientific training.Partly through her commitment to environmental justice. But just as important is her ability to communicate with people through public speaking. “Public speaking,” she says, “is the primary vehicle I use for reaching people.”

If you had asked Subra before 1981 “Do you see yourself as a major public speaker?”, she would have laughed at the idea. Yet today she gives more than one hundred presentations a year. Along the way, she’s lectured at Harvard, testified before Congress, and addressed audiences in 40 states, as well as in Mexico, Canada, and Japan.

1.What did Wilma Subra study for her job before 1981?

A. Chemistry and microbiology.

B. Families affected by toxic chemicals.

C. Toxic substances in the environment.

D. Minority communities near industrial polluters.

2.Why did Wilma Subra quit her job in 1981?

A. She wanted to create her own company.

B. She preferred freedom to restrictions.

C. She hoped to work with families and communities.

D. She was forbidden to inform the public of toxic pollution.

3.Wilma Subra is called “a top gun” in the 4th paragraph for ________.

A. her scientific training

B. her efforts to fight against pollution

C. her help in closing down dozens of toxic sites

D. her strong belief in environmental justice

4.What does Wilma Subra think of “public speaking”?

A. She values it. B. She laughs at it.

C. She is against it. D. She has no idea of it.

My darling daughter,

Recently I saw a diary of years. It was written when you were nine. I read your goals in the diary, and one little goal was really surprising for me. It was “to make Mom happy”.

I was so moved, and I would have told you that you made me happy every day of my life. My first thoughts in the morning were of you. When I got home from work, I couldn’t wait to see you. I liked talking to you very much and I wanted to know what your day was like. You kept my spirit alive, my mind challenged and my body active. You were, and still are, the light of my life. Without you, my life would have been boring. You made me happy and you continue to do so.

You are a mother now, with a child of your own. I know you love her, so I think you should tell her how happy she makes you. Sometimes we forget to say the words that are in our hearts. These words can be very important to a child. They can change their world completely. They can create a beautiful world for them.

You are my joy in life, my little one. You always have been, and you always will be. Never forget that, and tell that to your child. Tell her that she is the most important thing in the world for you, because she makes things joyful in your life! I love you, my dearest daughter.

Mom

1.What can we learn from the first paragraph?

A.The diary was written when the daughter was young

B. The mother was not close to her daughter.

C. The daughter had been dead for many years.

D. The mother often heard from her daughter.

2.The mother ______ according to the text.

A. thought her life was boring

B. has a granddaughter

C. was a housewife

D. used to get up early

3. According to the third paragraph, the mother advised her daughter to ______ .

A. try her best to make her child happy

B. take her child traveling around the world

C. let her child do whatever she wants

D. tell her child her feelings

4. The text has most likely been taken from

A. a report B. a letter

C. a piece of news D. a poster

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