The researchers, led by Hwang Woo-suk, insist they cloned an Afghan hound, only to help investigate (研究) human disease, including the possibility of cloning stem cells (干细胞) for treatment purposes.
But others immediately renewed calls for a global ban (禁令)on human reproductive cloning before the technology moves any farther.
"Successful cloning of an increasing number of species confirms the general impression that it would be possible to clone any species of mammals, including humans," said Ian Wilmut, a reproductive biologist at the University of Edinburgh who produced the first cloned mammal, Dolly the sheep, from an adult cell nearly a decade ago.
Researchers have since cloned cats, goats, cows, mice, pigs, rabbits, horses, deer, mules and gaur, a large wild ox of Southeast Asia. So far, efforts to clone a monkey or another primate with the same techniques have failed.
Uncertainties about the health and life span (寿命) of cloned animals continue to exist; Dolly died at a young age in 2003 after developing cancer and arthritis.
Wilmut and others complimented Hwang's achievement, reported Wednesday in the journal Nature. But they said politicians and scientists must face the larger issue — how to go on with the research without crossing the moral boundary of copying human life in the lab.
"The ability to use the technology is hopeful," said Robert Schenken, president of the American Society for Reproductive Medicine. "However, the paper also points out that in dogs as in most species, cloning for reproductive purposes is unsafe."
The cloned puppy was the lone success from more than 100 dogs implanted (嵌入)with more than 1,000 cloned embryos.
In a news conference in Seoul, the cloning team also condemned(谴责)the reproductive cloning of humans as "unsafe and inefficient." Human reproductive cloning already is banned in South Korea. Other nations, including the United States, are divided on whether to ban just human cloning or cloning of all kinds, including the production of stem cells.
56. An Afghan hound is a kind of ______.
A. cat B. goat c. cow D. dog
57. A ______ is a large wild ox of Southeast Asia.
A. horse B. deer C. mules D. gaur
58. Accrding to the passage, scientists haven’t been able to clone a ______ so far.
A. deer B. mule C. mouse D. monkey
59. The underlined word complimented is probably similar in meaning to ______.
A. praised B. doubted C. refused D. gave up
60. The cloning of human beings is banned in ______.
A. South Korea B. the United States
C. both South Korea and the United States D. neither South Korea nor the United States
For more than six million American children, coming home after school means coming home to an empty house. Some deal with the situation by watching TV. But all of them have something in common. They spend part of their time alone. They're called latchkey children, They're children who look after themselves while their parents work outside. Lynette Long was once the headmaster of an elementary school. She said, “We had a school rule against wearing jewelry. A lot of the kids bed chains around their necks with keys attached. 1 was often telling them to put them inside their shirts. There were so many keys that it never came to my mind what they meant.” Slowly , she learned they were house keys.
She and her husband began talking to the children who had them. They learned of the effect working parents had on their children. Fear is the biggest problem faced by the children at home alone. One in each three latchkey children the Longs talked to are reported to be scared. Many had nightmares and were worried about their own safety.
The most common way latchkey children deal with their fears is by hiding. It might be in a shower stall under a bed, in a closet. The second is TV. They’ll often play it at high volume.
It ‘s hard to get numbers on latchkey children and most patents are slow to admit they leave their children alone.
63. The main idea about "latchkey" children is that they ______.
A. are growing in numbers
B. suffer problems from being left alone
C . watch too much TV during the day
D. are also found in middle schools
64. The main feeling these children have when they are at home alone is_____.
A. tiredness B. freedom C. loneliness D. fear
65. The underlined word "nightmares" means _____.
A. night suit B. night habit
C. terrible dreams at night D. staying up at night
66. We may draw a conclusion that _____.
A. latchkey children enjoy being left alone
B. latchkey children try to hide their feeling
C. latchkey children often watch TV with their parents
D. it's difficult to find out how many latchkey children there.
The conflict(争执) over what or how much homework should be comes partly from the fact that people can't seem to agree on the purpose of homework.
What teachers think?
Some teachers think that homework is necessary to reinforce(巩固)what is learned in school. And so they ask their students to memorize what was discussed in class through homework..
Some teachers think the point of homework is to cover material that the class didn't have time to get to, so their homework is to let students learn additional things.
Other teachers like homework simply because they want students to form work habits and still others believe homework is necessary because it is the best way for parents to learn what their children do in school.
Parents' ideas.
But many parents seem to have different ideas.
Elissa Cohen,who has twins at Lafayette Elementary School, doesn't like the fact that third-grade students in DC elementary schools are asked to write about 25 book summaries a year. “They do the same thing over and over without really getting into alternate(交替) ways of thinking about books and thinking about reading and writing. ”
Experts' opinions.
Some education reformers (改革者), such as Howard Gardner, a Harvard University, professor well-known for his theory on multiple intelligence(智力), think that Cohen is on the right track. But it is often hard to persuade overworked teachers to give much thought to homework tasks.
60. How many opinions do the teachers have on "homework"?
A. 3. B. 4. C. 5 D.6
61. According to the experts' opinions,
A. teachers should give necessary work to the students
B. teachers should not work too hard or too long
C. teachers should let the students repeat what they didn't have time to get in class
D. what Cohen's thinking about is correct
62. What's the problem with Elissa Cohen's twins in writing about their book report?
A. They find homework really hard.
B. They simply copy one repeatedly.
C. They aren't given much thinking about what they read.
D. They get different ways of thinking about their work.
IV.阅读理解（共20小题；每题2分; 满分40分）
Football--called soccer in the United States--is probably the most popular sport in the world today, It has been popular for a long time. But many years ago each country had different rules for its own football game.
In 1863 a group of people met in England to change this. They wrote a set of rules for all countries to follow. They also planned for soccer teams from different countries to play against each other. The idea worked. These rules are the same today, more than 100 years later. Now teams from all the world compete in the famous World Cup. The cup is a series of games which is held every four years. Team from many countries plays to see which is the best. Soccer is so popular today that it is not unusual for 600 million people to watch a World Cup match on television.
How did the World Cup start? The soccer team from Uruguay won the Olympic championship in soccer in 1924 and 1928. That country decided to have the first World Cup games in Montevideo in 1930, These first games were not very successful. Only thirteen teams arrived to play and eight of them were from South America.
It didn't seem like a world championship. The team from Uruguay won the Cup that first year.
56. In 1863 a group of people met in England______.
A. to play for football teams from different countries
B. to learn the rules for football
C. to write a set of rules for football
D. to have matches between teams from different countries
57. The rules written in 1863 are _____.
A. the same as today's B. different from today's
C. changed a lot D. changed a little
58. When did the first World Cup take place?
A. In 1930. B. In 1924. C. in 1928 D. In 1934
59. The first World Cup was not successful because
A. the Olympic champion didn't take place
B. some of the teams arrived too late
C. all teams were from South America
D. it did not seem like a world championship
To Whom It May Concern:
My husband and I got married in 1965 and for the first ten years of our marriage I was very happy to stay home and raise our three children. Then four years ago, our youngest child went to school and I thought I might go back to work.
My husband was very supportive and helped me to make my decision. He emphasized all of the things I can do around the house, and said he thought I could be a great success in business.
After several weeks of job-hunting I found my present job, which is working for a small public relations firm. At first, my husband was very proud of me and would tell his friends , "My clever little wife can run that company she's working for."
But as his joking remark approached reality, my husband stopped talking to me about my job．I have received several promotions and pay increases , and I am now making more money than he is. I can buy my own clothes and a new car. Because of our combined incomes, my husband and I can do many things that we had always dreamed of doing , but we don't do these things because he is very unhappy.
We fight about little things and my husband is very critical of me in front of our friends. For the first time in our marriage, I think there is a possibility that our marriage may come to an end．
I love my husband very much, and I don't want him to feel inferior, but I also love my job．I think I can be a good wife and a working woman, but I don't know how .Can you give me some advice? Will I have to choose one or the other or can I keep both my husband and my new career?
Please help.
"Distressed"
72．The letter was most probable written ________.
A．in 1975 B．around 1980 C．four years ago D．in 1965
73．Her husband ________ when she first found her present job．
A．was very critical of her B．felt disappointed
C．was proud of her D．was happy but critical
74．What does the underlined word "promotion" mean?
A．scolding B．criticism C．prize D．advancement
75．As her income increased, ________.
A．she found a gap emerged between her and her husband
B．she bought more clothes and a house
C．she did the many things she and her husband dreamed of
D．she felt very proud of herself
During the summer holidays there will be a revised (修改过的) schedule (时刻表) of services for the students. Changes for dining-room and library service hours and for bus schedules will be posted on the wall outside of the dining-hall . Weekly film and concert schedules, which are being arranged(安排)，will be posted each Wednesday outside of the student club.
In the summer holidays, buses going to the town center will leave the main hall every half hour during the day. The dinning-room will serve three meals a day from 7:00 a.m. to 7:00 p.m. during the week and two meals from noon to 7:00 p.m. on weekends. The library will continue its usual hours during the week, but have shorter hours on Saturdays and Sundays. The weekend hours are from noon to 5:00 p.m.
All students who want to use the library borrowing services must have a new summer card. This announcement will also appear in the next week’s student newspaper.
68. The main purpose of this announcement is to______.
A. tell students of important schedule changes
B. tell students of new bus and library services
C. show the excellent services for students
D. ask students to renew their library cards
69. At which of the following times will the bus leave the main hall?
A. 8:00, 9:00, 10:00, 11:00 B. 8:30, 9:30, 10:30, 11:30
C. 8:30, 9:00, 9:30; 10:00 D.8:00, 9:30, 11:00, 12:30
70. Times for films and concerts are not listed in this announcement because______.
A. they are not to be announced B. they are hard to arrange
C. the full list is not ready D. the full list is too long
71. In the summer holidays, the library will have______.
A. no special hours
B. special hours on weekdays
C. special hours on weekends
D. special hours both on weekdays and weekends