The underlined word “they in Nathan’s words refers to . A．the employees B．governments ——青夏教育精英家教网—

摘要： The underlined word “they in Nathan’s words refers to . A．the employees B．governments C．all the restaurants D．fast-food restaurants 第22天 A Why did humans evolve to walk upright? Perhaps because it’s just plain easier. Make that “energetically less costly , scientifically speaking. Bipedalism-walking on two feet, is one of the defining characteristics of being humans, and scientists have debated for years how it came about. In the latest attempt to find an explanation, researchers trained five chimpsto walk on a treadmillwhile wearing masks that allowed measurement of their oxygen consumption. The chimps were measured both while walking upright and while moving on their legs and knuckles.That measurement of the energy needed to move around was compared with similar tests on humans and the results are published in this week’s online edition of “Proceedings of the National Academy of Sciences . It turns out that humans walking on two legs use only one-quarter of the energy that chimps use while knucklewalking on four limbs(肢).And the chimps, on average, use as much energy using two legs as they did when they used all four limbs. However, there were differences among chimps in how much energy they used, and this difference corresponded to their different manner of walking and anatomy.One of the chimps used less energy on two legs, one used about the same and the others used more, said David Raichlen, assistant professor of anthropology at the University of Arizona. “What we were surprised at was the variation , he said in a telephone interview. Interview. “That was pretty exciting, because when you talk about how evolution works, variation is the bottom line, without variation there is no evolution. Walking on two legs freed our arms, opening the door to drive the world, said Raichlen. “We think about the evolution of bipedalism as one of first events that led hominidsdown the path to being humans. The research was supported by the National Science Foundation and the L.S.B.Leakey Foundation.

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Observer 2007-03-28 13:54

Nothing could be more shameful for McDonald’s and KFC. They are violating labour’s rights. The government must immediately bring the guilty to justice. A stricter government inspection system must be enforced to protect the workers.

Nathan 2007-03-28 21:39

It is known that McDonald’s and KFC and other fast-food restaurants pay the lowest wage they possibly can to get their employees. I think it’s kind of funny that these two restaurants have not yet set up unions. It is also known that they also take every possible measure e(legal, and sometimes illegal) to prevent their employees from forming or joining unions. I think it is high time that government enforced the law that they have made.

Cushman 2007-03-28 22:32

The deepest reason is that China has a large population. If you complain that the pay is very low, the boss will tell you that can go to other places and that there are a lot of people waiting for the job. Today finding a job is not very easy, so you don’t have many choices, and you have to face the reality.

Chip 2007-03-29 20:33

If wages were too low, people wouldn’t work for them, but they do, so it proves the wages are reasonable. Sure, they could raise the wages, but why should they? The workers are still working, still willing to show up on time, and it keeps costs lower. Were they to raise wages, they would have to FIRE more workers, and the price of burgers would go up. Then people wouldn’t buy them, then McDonald’s would once again FIRE more workers because of a reduced demand, and you’d be back in the same boat, just with less people working.

What are they debating about?

A．McDonald’s and KFC pay too low a salary to their employees.

B．Setting up a social security system.

C．Fast-food restaurants have no rights to fire workers.

D．McDonald’s and KFC will be punished for their behaviour.

According to Chip, it is____for McDonald’s and KFC to give employees a low salary.

A．unacceptable B．shameful C．acceptable D．illegal

In the opinion of Cushman, the key to the problem is that____.

A．the social security net has not been set up

B．China has too large a population

C．the government has not taken stronger steps to protect workers

D．the unions have not played an important part to raise the wages.

The underlined word “they” in Nathan’s words refers to____.

A．the employees B．governments

C．all the restaurants D．fast-food restaurants

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