题目内容
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(胚胎), semen and DNA of endangered animals and storing them in liquid nitrogen(液体氮). 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 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 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.”
1．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
2．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
3．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
BAC
Buying a house for most of the people is a once in a lifetime decision, which means people decide to do so only after coming across the ideal house. Surprisingly, eight in every 10 home buyers are unhappy with their houses.
A survey conducted by the Beijing Consumers’ Association (BCA) recently shows about 80 percent of the 2,315 respondents in 23 residential complexes of Beijing are dissatisfied with the soaring house prices.
They think the reasonable price in Beijing should be between 3,000 yuan and 7,000 yuan per square meter.
The quality of the buildings, the surrounding environment and traffic and property management(物业管理)are the other factors that play a role in people’s decision to buy a house.
The BCA has suggested strict sales regulations and contracts to ease house-owners’ sufferings. It has urged the authorities to impose severe punishment on developers found violating building and other rules and joining hands with others to bid up property prices, About 41.2 percent of the respondents have complained that their house have defective designs, while nearly 40 percent say the lighting and ventilation(通风)are far from satisfactory.
The landscapes in the residential areas are a source of unhappiness for 43.2 percent of the respondents, and about one-third say they were “bluffed” into buying “third grade” house. And more than half are not satisfied with the sport and entertainment facilities in their neighborhood.
Property management in the buildings, 56.5 percent of the respondents say, is way below standard compared to the high fee charged by the complexes.
60 percent of the consumers doubt the contents of developers’ advertisements, with only 6.3 percent being satisfied.
Experts have suggested consumers gather thorough knowledge about a developer and their work before deciding to buy a house from it. They should check the day-light conditions and ventilation in different weather conditions in advance, if possible.
1. According to the passage________ of the buyers are NOT content with their houses.
|
A．80％ |
B．60％ |
C．56.5 ％ |
D．41.2％ |
2.Which is the best title of the passage?
|
A．Most Home Buyers Are Unhappy with Their House. |
|
B．Buying a House Is an Important Decision. |
|
C．Thinking Carefully Before Buying a House. |
|
D．The Environment Is Important When Making a Decision. |
3.The meaning of the underlined word probably means “_______”.
|
A．fooled |
B．cheated |
C．asked |
D．forced |
4.If you want to buy a flat, according to the survey, you will consider the following EXCEPT_______.
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A．property management |
B．the surrounding environment |
|
C．the quality of the buildings |
D．the height of the building |