With only about 1 000 pandas left in the world, China is desperately trying to clone the animal and save the endangered species . That’s a move similar to what a Texas A&M University researchers have been undertaking for the past five years in a project called “Noah’s Ark”.
Noah’s Ark is aimed at collecting eggs, embryos , semen and DNA of endangered animals and storing them in liquid nitrogen. If certain species should become extinct, Dr. Duane Kraemer, a professor in Texas A &M’s College of Vetreinary Medicine, says there would be enough of the basic building blocks to reintroduce the species in the future.
It is estimated that as many as 2 000 species of mammals, birds and reptiles will be come extinct in over 100 years. The panda, native only to China, is in danger of becoming extinct in the next 25 years.
This week, Chinese scientists said they grew an embryo by introducing cells from a dead female panda into the egg cells of a Japanese white rabbit. They are now trying to implant the embryo into a host animal.
The entire procedure could take from three to five years to complete.
“The nuclear transfer of one species to another is not easy, and the lack of available (capable of being used) panda eggs could be a major problem,” Kraemer believes. “They will probably have to do several hundred transfers to result in one pregnancy (having a baby). It takes a long time and it’s difficult, but this could be groundbreaking science if it works. They are certainly not putting any live pandas at risk, so it is worth the effort,” adds Kraemer, who is one of the leaders of the Project at Texas A&M, the first ever attempt at cloning a dog.
“They are trying to do something that’s never been done, and this is very similar to our work in Noah’s Ark. We’re both trying to save animals that face extinction. I certainly appreciate their effort and there’s a lot we can learn from what they are attempting to do. It’s a research that is very much needed.”The aim of “Noah’s Ark” project is to _____.
A.make efforts to clone the endangered pandas |
B.save endangered animals from dying out |
C.collect DNA of endangered animals to study |
D.transfer the nuclear of one animal to another |
According to Professor Kraemer, the major problem in cloning pandas would be the lack of _____.
A.available panda eggs | B.host animals |
C.qualified researchers | D.enough money |
The best title for the passage may be _____.
A.China’s Success in Pandas Cloning |
B.The First Cloned Panda in the World |
C.Exploring the Possibility to Clone Pandas |
D.China—the Native Place of Pandas Forever |
From the passage we know that _____.
A.Kraemer and his team have succeeded in cloning a dog |
B.scientists try to implant a panda’s egg into a rabbit |
C.Kraemer will work with Chinese scientists in clone researches |
D.about two thousand species will probably die out in a century |
The United States of America is the most culturally diverse(多样化) country in the world in terms of culture religion, ethnicity(种族) and sexual orientation. As a combination of various races and cultures, America is home to all. The culture here is so unique that citizens can be just as proud of their original cultural heritage(遗产) as they are to be American.
What is now the US was initially inhabited(居住) by native people until the land was settled by various European groups and African slaves. Since the 20th century, the country has become a heaven for people from all over the globe(全球).
The arrival of immigrants(移民) has shifted populations from rural(农村的) areas into cities because immigrants tend to settle in urban areas. At present, 81 percent of the inhabitants in the US live in cities.
Cultural and ethnic diversity adds a unique flavor to cities that is expressed through distinct(独特的) neighborhoods, restaurants, places of worship, museums, nightlife and multicultural learning environments.
Unique musical forms, such as jazz, rock and roll, Chicano music, and the blues, grow in the US by mixing a variety of culturally distinct musical traditions to create a new form.
At the executive (行政的) level, the country is headed by a mixedrace president; two posts(职位) on the Supreme Court are held by members of the country's two largest minorities.There is also diversity in state and local governments.
Without its rich mixture of races and cultures, America would not be the nation that it is today. Founded upon the basis of equality and freedom, America acts as a stage where different cultures not only coexist peacefully, but develop well.According to the passage, America is a country________.
A.that welcomes people from all over the world |
B.where citizens take more pride in their original culture |
C.that is mostly settled by Europeans and Africans |
D.where 81% of the population are immigrants |
Where did most people live before many immigrants came to America?
A.In the urban areas. | B.In the rural areas. |
C.In the southern part of America. | D.In the northern part of America. |
We can learn from the sixth paragraph that________.
A.diversity(多样化) has existed in America in almost every aspect(方面) |
B.most posts in American state governments are held by mixedrace people |
C.equality and freedom make America a fair country |
D.diversity has greatly affected the American political field |
What's the best title for this passage?
A.The effects of culture and diversity on America. |
B.The influence of globalization on America. |
C.The political development of America. |
D.The bright future of America. |
We would most probably read this passage in a book about________.
A.science | B.history | C.culture | D.amusement |
Tabb doesn't look like a typical music teacher. But every weekday evening in the French Quarter New Orleans, he beats out the rhythm on his music stand as students play their chosen instruments.
“I'm doing my best to take young people away from harmful things,” said Tabb. His program, "The Roots of Music”, offers free music education to more than 100 students. He struggles to keep young people on the straight and narrow in the city with the nation's highest murder rate(凶杀率).
Tabb chose to target 9to14yearolds with his program. “That's a very important time in your life,” he said. “If I catch them then, I can hold onto them for at least four or five years and guide them the way that will lead them to success.”
Students meet from 4 pm to 7 pm every weekday, all year round. They work with tutors(助教) on schoolwork, practice their music and eat a hot meal before heading home. With the money provided by some people, Tabb's group is able to provide bus transportation, instruments and food for free. He calls it his “no excuse” policy. “You have no excuse why you're not here,” Tabb said. Tabb owes the success in part to the nature of music. “You're always learning something new,”he said. “That's what keeps the kids coming back every day.”
But the program isn't only about fun. “Music is about discipline (纪律),”said Tabb. He insists on good behavior and keeps kids in order with threats of situps(仰卧起坐), pushups(俯卧撑) or tasks like picking up grains of rice — but these measures aren't just punishment. Tabb wants young people to realize that music can help them build a better future. “I don't say that I'm saving lives,” he said. “I say I'm giving life — a whole different life of music.”The underlined phrase "keep young people on the straight and narrow” may mean ________.
A.keep young people standing straight |
B.keep young people on the correct life track(道路) |
C.keep young people busy performing music |
D.keep young people away from the dangerous parts of the city |
Which of the following kids may NOT be included in Tabb's program “ The Roots of Music”?
A.Jack, 8 years old. | B.Tom, 9 years old. |
C.John, 11 years old. | D.Linda, 13 years old. |
What attracts children to join in the program to learn music?
A.The free food and transportation. | B.The famous music teacher. |
C.The chance to learn new things. | D.The strict discipline rules. |
By saying “music is about discipline”, Tabb means ________.
A.keeping discipline is more important than learning music |
B.obeying(遵守) rules is important in playing music well |
C.music is also connected with kids' grades |
D.kids can learn how to behave through music |
What is the main idea of this passage?
A.Tabb's program offers young people help. |
B.Kids improve grades through music learning. |
C.Tabb offers kids free food to learn music. |
D.Tabb performs music for street children. |
Arthur Miller was born on October 17th, 1915 and died on February 10th, 2005.Over the course of seven decades(十年) of literature career(文学生涯), Arthur Miller created some of the most memorable stage plays(舞台剧) in American Literature. He is the author of DeathofaSalesmanandTheCrucible. Born and raised in Manhattan, Miller went through the best and the worst of American society.
Arthur Miller's childhood:His father was a productive shopkeeper and clothing manufacturer(制造商) until the Great Depression(大萧条时期) dried up nearly all business opportunities.Yet, despite being faced with poverty, Miller made the best of his childhood. He was a very active young man, in love with such sports as football and baseball. When he wasn't playing outside, he enjoyed reading adventure stories. He was also kept busy by his many boyhood jobs. He often worked alongside his father. During other times in his life, he delivered bakery goods and worked as a clerk in a car parts warehouse.
College life: In 1934, Miller left the east coast to attend the University of Michigan. He was accepted into their school of journalism. His experiences during the Depression made him skeptical (怀疑的) about religion. Politically, he began leaning towards the "Left”.And since the theater was the cutting edge way for socioeconomic liberals (自由主义者) to express their views, he decided to enter the Hopwood Drama competition. His first play, NoVillain, received an award from the university.It was an impressive beginning for the young playwright; he had never studied plays or playwriting, and he had written his play in just five days!
Miller's later years: In 1987, his autobiography was published. Many of his later plays dealt with personal experience. In particular, his final play, FinishingthePicture mirrors the last days of his marriage to Marilyn Monroe.In 2005, Arthur Miller passed away at the age of 89.What can we know about Arthur Miller from Paragraph 2?
A.He was born into a poor family. |
B.His father wasn't good at business. |
C.He couldn't adjust himself to poverty. |
D.He had to do lots of jobs to make a living. |
Arthur Miller began to write plays ________.
A.when he was in college |
B.when he was a small boy |
C.because his father encouraged him to do so |
D.because it was one of his school assignments(作业) |
We can infer from Paragraph 3 that ________.
A.the University of Michigan is on the east coast of the USA |
B.Miller's university education made him doubt religion |
C.Miller learned playwriting all by himself |
D.socioeconomic liberals were probably not politically "left” |
Which of the following plays tells the story of Arthur Miller and Marilyn Monroe?
A.Death of a Salesman. |
B.The Crucible. |
C.No Villain. |
D.Finishing the Picture. |
The passage is intended to________.
A.introduce Arthur Miller's plays |
B.tell us about Arthur Miller's childhood |
C.explain how Arthur Miller started to write plays |
D.give us a brief introduction to Arthur Miller's life |
Six Chinese surveillance ships have entered waters near islands claimed by both China and Japan.
China said the ships were carrying out "law enforcement" to demonstrate its jurisdiction(管辖权) over the islands, known as Diaoyu in China and Senkaku in Japan.
At least two of the vessels left after the Japanese coast guard issued a warning, Japanese officials say.
The move came after Japan sealed a deal to buy three of the islands from their private Japanese owner. Japan controls the uninhabited but resource-rich East China Sea islands, which are also claimed by Taiwan.
The Japanese Coast Guard said the first two Chinese boats entered Japan's territorial waters at 06:18 local time (21:18 GMT Thursday), followed by another fleet of four other ships just after 07:00. The first two ships then left the area. A third ship left later on Friday morning, one report said. No force was used, Japanese officials added. "Our patrol vessels are currently telling them to leave our country's territorial waters," the coastguard said in a statement.
The Chinese foreign ministry confirmed that its ships were there. “These law enforcement and patrol activities are aimed to demonstrate China's jurisdiction over the Diaoyu Islands and its affiliated(附属的) islets and ensure the country's maritime(海事的) interests,” a statement said.
The US has called for ''cooler heads to prevail'' as tension intensifies between China and Japan over the islands, which lie south of Okinawa and north of Taiwan. US Defense Secretary Leon Panetta is due to visit both Japan and China from this weekend as part of a tour of the region that also includes New Zealand.
The dispute has seriously marred diplomatic relations between China and Japan and threatens to damage the strong trading relationship, says the BBC's John Sudworth in Beijing. The row(争端) has also generated strong nationalist sentiment on both sides that observers say now makes it very difficult to be seen to be backing down, says our correspondent.
The Japanese government says it is buying the islands to promote their stable and peaceful management. Its move followed a bid by right-wing Tokyo Governor Shintaro Ishihara to buy the islands using public donations - an action that would likely have further provoked(触怒) China.
China, on the other hand, says the islands have historically been its territory and fishing grounds.
Meanwhile Japan's newly-appointed ambassador to China, Shinichi Nishimiya, remains in hospital in Tokyo after he was found unconscious near his home in Tokyo on Thursday. No details have been given on his condition. He was appointed on Tuesday to replace Uichiro Niwa, who has been criticised for his handling of one of the worse diplomatic rows between Japan and China in recent years.The Diaoyu Islands are actually inhabited by .
A.Japan | B.China | C.America | D.Nobody |
Which of the following is true?
A.Japan fired at the 6 Chinese ships to warn them to leave the waters. |
B.China admitted that the 6 ships had been forced to leave the waters. |
C.The US called on both sides to calm down. |
D.Shinichi Nishimiya was unconscious in the hospital because somebody attacked him. |
Why was Uichiro Niwa replaced?
A.He is not iron enough in handling the diplomatic rows between Japan and China. |
B.His health condition is not good enough to work there. |
C.He didn’t do a good job in dealing with the dispute about the Diaoyu Islands. |
D.He criticized the Chinese government publicly in an improper way. |
This news report is most likely to be selected from the newspaper.
A.British | B.Chinese | C.Japanese | D.American |
Like many of my generation, I have a weakness for hero worship. At some point, however, we all begin to question our heroes and our need for them. This leads us to ask: What is a hero?
Despite immense differences in cultures, heroes around the world generally share a number of characteristics that instruct and inspire people.
A hero does something worth talking about. A hero has a story of adventure to tell and community who will listen. But a hero goes beyond mere fame.
Heroes serve powers or principles larger than themselves. Like high-voltage transformers, heroes take the energy of higher powers and step it down so that it can be used by ordinary people.
The hero lives a life worthy of imitation. Those who imitate a genuine hero experience life with new depth, enthusiasm, and meaning. A sure test for would-be heroes is what or whom do they serve? What are they willing to live and die for? If the answer or evidence suggests they serve only their own fame, they may be famous persons but not heroes. Madonna and Michael Jackson are famous, but who would claim that their fans find life more abundant?
Heroes are catalysts (催化剂) for change. They have a vision from the mountaintop. They have the skill and the charm to move the masses. They create new possibilities. Without Gandhi, India might still be part of the British Empire. Without Rosa Parks and Martin Luther King, Jr., we might still have segregated (隔离的) buses, restaurants, and parks. It may be possible for large-scale change to occur without leaders with magnetic personalities, but the pace of change would be slow, the vision uncertain, and the committee meetings endless.Although heroes may come from different cultures, they __________.
A.generally possess certain inspiring characteristics |
B.probably share some weaknesses of ordinary people |
C.are often influenced by previous generations |
D.all unknowingly attract a large number of fans |
According to the passage, heroes are compared to high-voltage transformers in that _______.
A.they have a vision from the mountaintop |
B.they have warm feelings and emotions |
C.they can serve as concrete examples of noble principles |
D.they can make people feel stronger and more confident |
Madonna and Michael Jackson are not considered heroes because __________.
A.they are popular only among certain groups of people |
B.their performances do not improve their fans morally |
C.their primary concern is their own financial interests |
D.they are not clear about the principles they should follow |
The author concludes that historical changes would __________.
A.be delayed without leaders with inspiring personal qualities |
B.not happen without heroes making the necessary sacrifices |
C.take place if there were heroes to lead the people |
D.produce leaders with attractive personalities |