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The leaders ought to ________ their political differences to pass a health care law.
A. set aside B. set away
C. set off D. set out
查看习题详情和答案>>With only about 1, 000 pandas left in the world, China is desperately trying to clone(克隆) the animal and save the endangered species. That’s a move similar to what Texas A & M University researchers have been undertaking(承担) for the past five years in a project called “Noah’s Ark”.
Noah’s Ark is aimed at collecting eggs, embryos(胚胎), semen and DNA of endangered animals and storing them in liquid nitrogen(氮). If certain species should become extinct, Dr. Duane Kraemer, a professor in Texas A & M’s College of Veterinary 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, reptiles will become 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(植入) the embryo into a host animal.
The entire procedure could take from three to five years to complete.
“The nuclear transfer(核子移植) 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.”
64. 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
65. 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
66. 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
67. 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 of species will probably die out in a century
The policy of the mainland is very clear and? straightforward,and the key problem is_____the? leaders of Taiwan will accept it.
A.that??? B.how??? C.why??? D.whether
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—The leaders are supposed to care about the sufferings of the people.
—Contrary to that, some of them act with their eyes _______ to the reality.
A. closing B. closed C. to close D. being closed
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Jamie Oliver has been invited by Gordon Brown to prepare a banquet at No.10 for President Barack Obama and other leaders of the G20,offering a cut-price menu to reflect times when trade and industry are far from prosperous and the rate of employment is decreasing.
Downing Street sources say Oliver, the well-known chef, will cook using“honest high—street products”and avoid expensive or“fancy”ingredients(材料).
The prime minister is trying to avoid a repeat of the embarrassment last year when he sat down to an 18-course banquet at a Japanese summit to discuss world food shortages.
Obama,President Nicolas Sarkozy of France,Chancellor Angela Merkel of Germany and other leaders will be served by apprentices(学徒)from Fifteen,the London restaurant Oliver founded to help train young people in poverty in order to make a living by mastering a skill.
Brown wants the dinner to reflect the emphasis of the London summit,which he hopes will lead to an agreement to lift the world out of depression.“To be invited to cook for such an important group of people,who are trying to solve some of the world’s major problems, is really a privilege,”said Oliver,“I’m hoping the menu I'm working on will show British food and produce is some of the best in the world,but also show we have pioneered a high-quality apprentice scheme at Fifteen London that is giving young people a skill to be proud of.”
The chef has not yet finalized the menu,but is expected to draw inspiration from his latest book, Jamie's Ministry of Food,which has budget recipes for beef and ale stew(啤酒炖菜)and “impressive” chocolate fudge cake.
56. What can we learn about Oliver from the text?
A.He is a well-known American cook.
B.He is invited to attend the G20 summit.
C.He has founded the Fifteen London.
D. He is one of the apprentices serving leaders of the G20.
57.The menu of the banquet for the leaders of the G20 is supposed to .
A.include all delicious British food
B.use inexpensive produce with special characteristics
C.be rich,varied and of high quality
D.imitate the menu of last Japanese summit
58.Which of the following is TRUE according to the text?
A.Oliver is honored to be invited to cook for the G20 leaders.
B. Altogether three presidents are mentioned in the text.
C.President Barak Obama offers the cut-price menu.
D.The menu for the G20 dinner banquet has been decided.
59.What is the Fifteen London?
A.an apartment in London B.a luxurious restaurant in London
C.a restaurant as well as a training center D.a famous avenue