DNA is one of the most important discoveries in science. DNA is the plan for the human being, as a blueprint is the plan for a building. DNA makes a person look the way he does. A person’s DNA comes from a mixing of his parents’ DNA. That’s why a child looks like his parents. But, besides controlling things such as height and hair color, DNA can also give people diseases. Scientists are now studying DNA to cure diseases.
In the seventies, scientists developed a process called recombinant or RDNA. Although it sounds difficult to understand, RDNA simply means taking DNA from one animal or plant and putting it into another. By doing so, scientists can create new beings. In doing so, scientists can better understand DNA, especially what parts of DNA do what. After they understand DNA, scientists can begin to cure diseases. Often, the new being created will itself be the cure. Besides curing diseases, RDNA research can also do other things. For example, scientists in Japan have already created “super-trees”. Trees help humans, because they take CO2, which poisons humans, from the air and turns it into oxygen, which lets humans breathe. “Super-trees” do this too, but do it much faster. As things such as cars and factories have already put much CO2 in the area, “super-trees” are badly needed.
Unfortunately, there is a serious danger in RDNA research. Scientists want to create animals to cure old diseases, but these new animals may also create new diseases. It will be a serious problem if the animals escape from the science laboratory and into nature. As these animals are not natural, they may let loose many new powerful diseases.
As a result, RDNA research will create many solutions, but it will also create many problems.
From the passage, we can know that a boy looks like his parents because______.
| A．he is son of his parents. |
| B．his parents’ DNA decides his appearance. |
| C．he has received DNA from his father or his mother. |
| D．scientists have put some of his parents’ DNA into him. |
What does the underlined expression “let loose” probably mean?
| A．let … go free | B．get rid of |
| C．absorb | D．survive |
What is the best title for the passage?
| A．The DNA Research in Japan |
| B．A New Way of DNA Research in Japan. |
| C．The Causes and Effects of DNA Research |
| D．The Advantages And Disadvantages of RDNA |
The following statements are true about RDNA research EXCEPT ______.
| A．the research has been stopped because the created animals carry viruses |
| B．“super-trees” might be widely planted around the world |
| C．scientists have not completely understood DNA |
| D．RDNA research will benefit human beings a lot |
You might find this passage in / on a ________.
| A．fashion magazine | B．novel | C．scientific newspaper | D．sports newspaper |
It was a cold night in Washington, D.C. and I was heading back to the hotel when a beggar walked up to me. He asked if I would give him some money so he could get something to eat. After a short hesitation, I shook my head and kept walking. With helplessness, he said, “I really am homeless and I really am hungry! You can come with me and watch me eat!” But still, I kept on walking.
The incident bothered me for the rest of the week. In fact, I had money in my pocket and it wouldn’t have killed me to hand over a dollar or two even if he had been lying. On a freezing cold night, I wondered what would happen to a hungry man.
Flying back to my hometown, Anchorage, I couldn’t help thinking of him. I tried to find excuses for my failure to help. After all, government agencies, churches and charities were there to feed him. Besides, you’re not supposed to give money to beggars.
But I just couldn’t forget the incident and began to think I must do something. At that time, I was writing a garden column(专栏) for the local Daily News. Suddenly, I came up with an idea. Why not try to get all my readers to plant one row in their gardens donated to Bean’s? Bean’s Cafe, the soup kitchen which has volunteered to feed hundreds of hungry people every day for many years.
The idea began to take off. I began to receive more e-mails and calls from kind people. They tried their best to show their concerns about the hungry. Food was sent by different warm-hearted people and even those who only grew flowers sent their flowers. They are food for the spirit, which comforted me a lot.
Next year, the Garden Writers Association of America held their annual conference in Anchorage and after learning of Anchorage’s program, Plant a Row for Bean’s became Plant a Row for the Hungry. You can imagine how happy I was then. According to the passage, the reason why the author refused to give some money to the beggar probably is that ________.
| A．he happened not to take money then |
| B．he wasn’t fond of beggars |
| C．he thought that the beggar was lying |
| D．he didn’t like being bothered |
Why did the author can’t help thinking of the beggar ?
| A．Because he felt he had done wrong for his failure to help him. |
| B．Because he wanted to know whether the beggar had lied to him. |
| C．Because he was worried that the beggar might die from hunger. |
| D．Because some agencies, churches and charities should help the beggar. |
What does the underlined phrase “take off” in Paragraph 5 mean?
| A．remove clothes. | B．leave suddenly. |
| C．become successful. | D．come into being. |
What’s the correct order to record the author’s launch of the program “Plant a Row for the Hungry?”
① He ran into a beggar.
② He was regretful.
③ He came up with the idea of planting a row for Bean’s.
④ The Plant a Row for Bean's became Plant a Row for the Hungry.
⑤ He went back home.
⑥ Writers gathered in Anchorage.
| A．①②③④⑤⑥. | B．①⑤②③④⑥. |
| C．①②⑤③④⑥. | D．①②⑤③⑥④. |
Children start out as natural scientists, eager to look into the world around them. Helping them enjoy science can be easy; there’s no need for a lot of scientific terms or expensive lab equipment. You only have to share your children’s curiosity(好奇).
Firstly, listen to their questions. I once visited a classroom of seven-year-olds to talk about science as a job. The children asked me “textbook questions” about teaching, salary(薪水) and whether I liked my job. When I finished answering, we sat facing one another in silence. Finally I said, “Now that we’re finished with your lists, do you have questions of your own about science?” After a long pause, a boy raised his hand, “Have you ever seen a grasshopper(蚱蜢) eat? When I try eating leaves like that, I get a stomachache. Why?” This began a set of questions that lasted nearly two hours.
Secondly, give them time to think. Studies over the past 30 years have shown that, after asking a question, adults often wait only one second or less for an answer, no time for a child to think. When adults increase their “wait time” to three seconds or more, children give more logical(符合逻辑的), complete and creative answers.
Thirdly, watch your language. Once you have a child involved in a science discussion, don’t jump in with “That’s right” or “Very good”. These words work well when you encourage their good behavior(行为). But in talking about science, quick praise can mean that discussion is over. Instead, keep things going by saying “That’s interesting” or “I’d never thought of it that way before”, or coming up with more questions or ideas.
Lastly, show and don’t tell. Real-life impressions of nature are far more impressive than any lesson children can learn from a book or a television program. Let children look at their fingertips through a magnifying glass(放大镜), and they’ll understand why you want them to wash before dinner. Rather than saying that water evaporates(蒸发), set a pot of water to boil and let them watch the water level drop.According to the passage, children are natural scientists, and to raise their interest, the most important thing for adults to do is _______.
| A．to let them see the world around |
| B．to share the children’s curiosity |
| C．to explain difficult phrases about science |
| D．to supply the children with lab equipment |
In the second paragraph, “your lists” could best be replaced by ______.
| A．any questions |
| B．any problems |
| C．questions from textbooks |
| D．any number of questions |
According to the passage, children can answer questions in a more logical, complete and creative way if adults ________.
| A．ask them to answer quickly |
| B．wait for one or two seconds after a question |
| C．tell them to answer the next day |
| D．wait at least for three seconds after a question |
In which paragraph does the author tell us what to say to encourage children in a science discussion?
| A．The second | B．The third |
| C．The fourth | D．The fifth |
The author mentions all of the following techniques(技巧) for adults to share with their children’s curiosity except that adults should ________.
| A．tell their children stories instead of reciting (背诵) facts |
| B．offer their children chances to see things for themselves |
| C．be patient enough when their children answer questions |
| D．encourage their children to ask questions of their own |
Michael Jackson is one of the world's best singers. Michael Jackson was born in the middle west of the city of Gary, Indiana, in 1958. He began singing with his four brothers. They called the group "The Jackson Five". The group became very popular after appearing on a television program. They started singing in 1965, and became popular soon. In 1970 the group made their first record with the name of "I Want You Back". It was very popular. One of their hit records was "Never Say Goodbye".
Michael was good at dancing as well as singing, such as his dance moves and moon walking. He was asked to act in a film in 1978 for the first time, and in the same year he made a record on his own, which sold eight million copies all over the world.
Michael nearly didn't go out because he was too famous. Once his fans went off in a faint(晕倒) when they saw him at the concert. No one can do it by now. He lived in a large house and kept lots of animals. He never ate meat. He often raised money for Charity. This made him win the Guinness World Records(吉尼斯世界记录)in 2006. He died on June 25th, 2009, but he would live in our heart forever.How many people are there in Michael's group except him?
| A．Three. | B．Five. | C．Four. | D．Six. |
What's the name of their first record？
| A．"Never Say Goodbye" | B．"See You, See Me" |
| C．"I Want You Back" | D．"On the World" |
The underlined word "copies" means ___________ in Chinese.
| A．抄写 | B．张/份 | C．复制 | D．模仿 |
Michael was good at ____________according to the passage.
| A．rock music | B．street dance |
| C．playing the piano | D．moon walking |
Why did Michael have to stay at home most of time?
| A．Because he had no friends. |
| B．Because he often felt lonely. |
| C．Because he was too famous. |
| D．Because his company asked him to do so. |
King’s College Summer School is an annual(每年的) training program for high school students at all levels who want to improve their English. Courses are given by the teachers of King’s College and other colleges in New York. Trips to museums and culture centers are also organized. This year’s summer school will be from July 25 to August 15.
More information is as follows:
Application (申请) date
●Students in New York should send their applications before July 18, 2015.
●Students of other cities should send their applications before July 16, 2015.
●Foreign students should send their applications before July 10, 2015.
Courses
●English Language
Spoken English: 22 hours
Reading and Writing: 10 hours
●American History: 16 hours
●American Culture: 16 hours
Steps
●A letter of self-introduction
●A letter of recommendation(推荐)
The letters should be written in English with all the necessary information.
Cost
●Daily lessons: $200
●Sports and activities: $100
●Travels: $200
●Hotel service: $400
You may choose to live with your friends or relatives in the same city.
Please write to:
Thompson, Sanders
1026 King’s Street
New York, NY 10016, USA
E-mail: KC-Summer-School@ yahoo. comHow many kinds of courses are offered?
| A．2 | B．3 | C．4 | D．5 |
If you are to live with your relatives in New York, you will have to pay the school _______.
| A．$200 | B．$400 | C．$500 | D．$900 |
Which of the following is true about King’s College Summer School?
| A．Only top students can take part in the program. |
| B．King’s College Summer School is run every other year. |
| C．Visits to museums and culture centers are part of the program. |
| D．Only the teachers of King’s College give courses. |
You can most probably read the text in ________.
| A．a newspaper | B．a travel guide |
| C．a textbook | D．a telephone book |
What information can you get from the text?
| A．The program will last two months. |
| B．You can write to Thompson only in English. |
| C．As a Chinese student, you can send your application on July 14, 2015. |
| D．You can get in touch with the school by e-mail or by telephone. |
Given that many people's moods (情绪)are regulated by the chemical action of chocolate, it was probably only a matter of time before somebody made the chocolate shop similar to a drug store of Chinese medicine. Looking like a setting from the film Charlie&the Chocolate Factory, Singapore's Chocolate Research Facility (CRF) has over 100 varieties of chocolates. Its founder is Chris Lee who grew up at his parents' comer store with one hand almost always in the jar of sweets.
If the CRF seems to be a smart idea, that's because Lee is not merely a seasoned salesperson but also head of a marketing department that has business relations with big names such as Levi's and Sony. That idea surely results in the imagination at work when it comes to making different flavored(味道)chocolates.
The CRF's produce is "green" made within the country and divided into 10 lines, with the Alcohol Series being the most popular. The Exotic Series一with Sichuan pepper, red bean (豆),cheese and other flavors一also does well and is fun to taste. And for chocolate snobs，who think that they have a better knowledge of chocolate than others, the Connoisseur Series uses cocoa beans from Togo, Cuba, Venezuela , and Ghana, among others.What is good about chocolate?
| A．It serves as a suitable gift. |
| B．It works as an effective medicine. |
| C．It helps improve the state of mind. |
| D．It strengthens business relations. |
Why is Chris Lee able to develop his idea of the CRF?
| A．He knows the importance of research. |
| B．He learns form shops of similar types. |
| C．He has the support of many big names |
| D．He has a lot of marketing experience. |