摘要:A.time-saving fortable C.suitable D.effort-making

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Research advances over the past decade have told us that, with a little work, we humans can clone just about anything we want, from frogs to monkeys and probably even ourselves!
So, we can clone things, but why would we want to?
Of all the reasons, cloning for medical purposes has the most potential to benefit large numbers of people. How might cloning be used in medicine?
1. Cloning animal models of disease
Much of what researchers learn about human disease comes from studying animal models such as mice. Often, animal models are genetically engineered to carry disease-causing mutations(变异) in their genes. Creating these transgenic(转基因的) animals is a time-intensive process that requires trial-and-error and several generations of breeding(培育). Cloning technologies might reduce the time needed to make a transgenic animal model, and the result would be a population of genetically identical animals for study.
2.Cloning stem cells(干细胞) for the treatment of diseases
Stem cells are the body's building blocks, responsible for developing and repairing the body throughout life. As a result, they might be used to repair damaged or diseased organs and tissues. Researchers are currently looking up cloning as a way to create certain human stem cells for the research of diseases.
3. Cloning farm animals for drug production
Farm animals such as cows, sheep and goats are currently being genetically engineered to produce drugs or proteins that are useful in medicine. Just like creating animal models of disease, cloning might be a faster way to produce large herds of genetically engineered animals.
【小题1】From Purpose One, we can infer that      .

A.most transgenic animals are clone
B.most animals carry engineered genes
C.most transgenic animal models are not cloned
D.most animals carry disease-causing mutations in their genes
【小题2】It can be learned from Purpose Two that cloning technologies can be mainly use do    .
A.create damaged or diseased organs and tissues
B.clone genetically defined human stem cells
C.develop and maintain the body
D.repair the body throughout life
【小题3】According to Purpose Three, cloning technologies can be mainly used to      .
A.speed up the producing of genetically engineered animals
B.produce drugs or proteins that are useful in medicine
C.raise genetically engineered cows, sheep and goats
D.produce large herds of animals for human beings

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My father was 44 and knew he wasn’t going to male it to 45. He wrote me a letter and hoped that something in it would help me for  the  rest  of my life.
Since the day 1 was 12 and first read his letter, some of his words have lived in my
beart. One it aways times out. “Right now, you are pretending to be a time-killer. But I know that one hay, you will do something great that will set you among the very best.” Knowing that my dad believed in me gave me permission to believe in myself. “You will do something great.” He didn’t know what that would be, and neither did I, but at times in my life when I’ve felt proud of myself, I remember his words and wish he were here so I could ask. “Is this what you were talking about, Dad? Should I keep going?”
A long way frim 12 now, I realize hew would have been proud when I made any progress. Lately, thongn. I’ve come to believe he’d want me to move on to winat com next: to be nrood of and believe in, somebody else. It’s time to start writing my own letters to my children. Our children look to us with the same unanswered question we had. Our kids don’t  hold back because they’re afraid to fail. They’re only afraid of failing us. They don’t worry about being disappointed. Their fear-as mine was until my father’s letter-is of being a disappointment.
Give your chikdren permission to succeed. They’re witing for you to believe in them. I always knew way parents loved me. But trust my That elic will be more comlece, that love will be more real, and their belief in the nelces whi be greater if you write the words on their hearts; “Don’t worry; you’ll do something great.” Not having that blessing from their parents may be the only thing holding them back.
1.We learn from the text that the author___________.
A.lost his father when he was young
B.worked hard before he read his father’s letter
C.asked his father permission to believe in himself
D.knew execty at thing his father wanted him to do
2.What clis the hor tell us in the 3rd passgiaph?
A.Children need their parents’letters.
B.Children are afraid to be disappointcd.
C.His children’s fear of failure held them back.
D.His father’s letter removed his fear of failing his parents.
3.Which of the following is true of the author?
A.He got no access to success.
B.He wrote back to his father at 12.
C.He was surk his parents loved him.
D.He whce asked his father about the letter.
4.The main purpose of the text is to _______.
A. describe children’s thinking
B.answer some questions children have
C.stress the importance of communication
D.advise parents to encourage their children

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Going to the park with your family is a time-honored tradition during the warmer months whether you live in the city or in a rural area. The most common thing for kids to do at the park is to play on the playground equipment. This is great for kids. For parents, however, playground time is something not quite as exciting. It’s nice to socialize with other parents and enjoy watching the little ones at play, but grown-ups can’t easily participate in the playground fun. In order to make the most of spring and summer park trips parents might want to consider trying a few new activities.
Soft Frisbees and balls are great things to bring to the park and enjoy with kids. Parents can participate in playing catch. They can enjoy the fresh air and physical activity together. Other lawn games and toys like badminton can easily be taken to the park for an afternoon of fun.
If it is a breezy day, it might be just perfect for flying a kite. Kite flying is a wonderful family fun activity. Children who are too small to fly a kite themselves can have fun chasing it and helping older siblings hold the string. Slightly older children can enjoy learning to fly kites. Teens and parents can enjoy the challenge of making kites. Best of all, kites are inexpensive and can be used in almost any open space on a breezy day.
After these, the first thought might be to head home for a meal or a snack. However, bringing a snack or having a picnic can add an exciting element to the day out and can allow the family to enjoy more park time together. Everyday foods like sandwiches and apples can be very appetising. If you decide to pack a picnic, just remember to bring bags for any garbage you might produce!
【小题1】Why is the playground time not quite exciting for parents?

A.There is no equipment for them.
B.They can’t interact with each other.
C.They can’t easily enjoy the fun.
D.They have to watch their kids.
【小题2】What does the underlined word “appetising” in the last paragraph probably mean?
A.Convenient.B.Delicious.
C.Expensive.D.Terrible.
【小题3】What can the smallest kids do with kites?
A.Make a kite.B.Fly a kite.
C.Watch a kite.D.Chase a kite.
【小题4】What is the main idea of the passage?
A.The benefits of parents playing with children.
B.Suitable weather for playing in the park.
C.Activities parents can do with their children in the park.
D.Kite flying during spring and summer.

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In general, it seems reasonable to suppose that we should prefer peace and quiet to noise. And yet most of us have had the experience of having to adjust to sleeping in the mountains or the countryside because it was initially “too quiet”, an experience that suggests that humans are capable of adapting to a wide range of noise levels. Research supports this view. For example, Glass and Singer (1972) exposed people to short bursts of very loud noise and then measured their ability to work out problems and their physiological reactions to the noise. The noise was quite disruptive at first, but after about four minutes the subjects were doing just as well on their tasks as control subjects who were not exposed to noise. Their physiological reactions also declined quickly to the same levels as those of the control subjects.
But there are limits to adaptation and loud noise becomes more troublesome if the person is required to concentrate on more than one task. For example, high noise levels affect the performance of subjects who were required to monitor three dials at a time, a task not unlike that of a plane pilot or an air-traffic controller. Similarly, noise did not affect a subject’s ability to track a moving line with a steering wheel, but it did affect the subject’s ability to repeat numbers while tracking (Finkelm and Glass 1970).
Probably the most significant finding from the research on noise is that its predictability is more important than how loud it is. We are much more able to “tune out” long-lasing background noise, even if it is quite loud, than to work under circumstances with unexpected disturbance of noise. In Glass and Singer’s study, in which subjects were exposed to bursts of noise as they worked on a task, some subjects heard loud bursts and others heard soft bursts. For some subjects, the bursts were spaced exactly one minute apart (predictable noise); others heard the some amount of noise overall, but the bursts occurred at random intervals (unpredictable noise). Subjects reported finding the predictable and unpredictable noise equally annoying, and all subjects performed at about the same level during the noise portion of the experiment. But the different noise conditions had quite different after-effects when the subjects were required to proofread written material under conditions of no noise. The study shows that the unpredictable noise produced more errors in the later proofreading task than predictable noise; and soft unpredictable noise actually produced slightly more errors on this task than the loud predictable noise.
Apparently, unpredictable noise produces more fatigue than predictable noise, but it takes a while for this fatigue to take its toll on performance.
【小题1】When talking about people’s difficulty in sleeping in the mountains, what can be inferred in the passage?

A.They usually do not prefer peace and quiet to noise.
B.They may be exposed to short bursts of very strange sounds.
C.They prefer to hear a certain amount of noise while they sleep.
D.They may not have adapted to a higher noise level in the city.
【小题2】What did Glass and Singer find in their noise experiment?
A.Problem-solving is much easier under quiet conditions.
B.Physiological reactions prevent the ability to work.
C.Bursts of noise hardly disturb problem-solving in the long term.
D.The physiological reactions of the control subjects declined quickly.
【小题3】Researchers discovered that high noise levels are not likely to affect the __________.
A.successful performance of a single task
B.tasks of pilots or air traffic controllers
C.ability to repeat numbers while tracking moving lines
D.ability to monitor three dials at once
【小题4】 What does “take its toll on performance” in the passage probably mean?
A.Destroy the performance completely.
B.Have a negative effect on the performance.
C.Improve the performance greatly.
D.Have a positive influence on the performance.

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TANG Dynasty writer Du Mu once wrote in a poem titled Qingming: "The ceaseless drizzle drips all the dismal day; So broken-hearted fares the traveler on the way.Where can a wine house be found to drown his sadness ?A cowherd points to Almond Flower (Xing Hua) Village in the distance."
Qingming, the traditional tomb-sweeping day on the Chinese lunar calendar, falls on April 4 this year. Qingming Jie was proclaimed a Chinese national holiday in 2008. It is a time for remembering loved ones who have departed (去世). People visit their ancestors’ graves to sweep away the dirt and get rid of any weeds. They also leave offerings (祭品) of food and flowers, and burn incense (香) and paper money. Chinese tombs are usually built in the woods or on mountains, far from the city. It is believed that an area that faces south, with many pine trees, is a proper place for a tomb. People believe such a place will make the ancestors happy, and in return, they will look after the living family.
Nowadays, more and more residents are choosing environmental-friendly ways to spend the holiday such as flower sacrifices and memorial ceremonies on the Internet or at home. As one of the traditional ways to celebrate Tomb-sweeping Day – burning paper or incense – isn't exactly good for air quality.
In contrast to the sadness of the tomb sweepers, people also enjoy hope of Spring on this day. The Qingming Festival is a time when the sun shines brightly, the trees and grass become green and nature is again lively. Since ancient times, people have followed the custom of Spring outings. At this time tourists are everywhere.
Many people fly kites on Tomb Sweeping Day. They are usually made from a bamboo crossbow with coloured paper. The kite vibrates and buzzes as it rises into the sky, counterbalanced by its tail. Large kites can be as broad as three metres across, with a tail of six to ten metres. Most kites have a rectangular shape, and many have patterns of crabs, centipedes, butterflies, dragonflies, or Chinese characters such as "good fortune" or "long life". (361words)
【小题1】What’s the main idea of the second paragraph?

A.The cultural difference between the east and the west.
B.The traditional customs on tomb-sweeping day.
C.Various ways to care for the dead in the world.
D.Qingming Festival
【小题2】All of the following practices are mentioned on tomb-sweeping day EXCEPT_____ .
A.Weeping over the passed-away.
B.Flying kites made from bamboo and paper
C.Sending flowers to their ancestors’ graves.
D.Burning incense and paper money for the dead.
【小题3】Which of the following is correct according to passage?
A.Du Mu ,the well-known poet in Song Dynasty wrote a poem about Qing Ming.
B.Qingming Festival used to be a Chinese national holiday.
C.People have the custom of flying kites on Qing Ming.
D.Those whose ancestors were buried in proper places will have a bright future.
【小题4】The writer write the passage in order to____________ .
A.enable us to observe traditional tomb-sweeping day.
B.show traditional and present ways to spend Qingming Festival .
C.educate people to show their respect to the ancestors
D.raise people’s awareness of environmental protection.

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