Let’s do some sleep math．You lost two hours of sleep every night last week because of a big project due on Friday．On Saturday and Sunday，you slept in，getting four extra hours．On Monday morningi, you were feeling so bright-eyed that you only had one cup of coffee,instead of your usual two．But don’t be cheated by your energy．You’re still carrying around a heavy load of sleepiness, or what experts call“sleep debt”——in this case something like six hours，almost a full nights’ sleep．

Sleep debt is the difference between the amount of sleep you should be getting and the amount you actually get．It’s a deficit(缺乏)that grows every time we skim some extra minutes off our nightly sleep．“People accumulate sleep debt gradually without being noticed，”says William C．Dement，founder of the Stanford University Sleep Clinic．Studies show that such short—term sleep deprivation leads to a foggy brain，worsened vision，and trouble remembering. Long-term effects include obesity，insulin(胰岛素)resistance, and heart disease.A survey by the National Sleep Foundation reports that we’re losing one hour of sleep each night一一more than two full weeks of sleep every year.

The good news is that，like all debt, with some work，sleep debt can be repaid. Adding an extra hour or two of sleep a night is the way to catch up．For the long—term lack of sleep，take it easy for a few months to get back into a natural sleep pattern．

Go to bed when you are tired，and allow your body to wake you in the morning(no alarm clock allowed)．You may find yourself catatonic(有紧张症的)in the beginning of the recovery cycle：expect to have ten hours shut-eye per night. As the days pass, however，the amount of sleeping time will gradually decrease.

So earn back that lost sleep——and follow the dictates of your innate(固有的)sleep needs. You’ll feel better．“When you put away sleep debt,you become a superman，”says Stanford’s Dement,talking about the improved mental and physical capabilities that come with being well rested．

51．If you have short—term sleep deprivation, ____________.

A．you can think and remember things clearly

B．you can still see everything very clearly

C．you can drive your car easily

D．you may have a poor sight

52．The example of sleep math is used to show____________

A．in what case you build up a sleep debt

B．why you need six hours’ sleep every night

C．why you are full of energy even when you don’t haye enoug sleep

D．you should drink coffee to keep energetic when you don’t have enough sleep

53．The author begins Paragraph 3 with ____________.

A．an order          B．a story             C．a definition            D．an example

54．By saying the undedined sentence in the last paragraph，Dement means ____________

A．a superman always needs a lot of sleep

B．you will be in a good state with enough sleep

C．you can become superman after you repay your debt

D．You will become superman if you don’t make up for sleep debt

55．What might be the most suitable title for the passage?

A．Can you catch up on lost sleep?             B．How can you keep energetic?

C．Can you have a good sleep?                  D．What is sleep debt?

Let’s do some sleep math．You lost two hours of sleep every night last week because of a big project due on Friday．On Saturday and Sunday，you slept in，getting four extra hours．On Monday morningi, you were feeling so bright-eyed that you only had one cup of coffee,instead of your usual two．But don’t be cheated by your energy．You’re still carrying around a heavy load of sleepiness, or what experts call“sleep debt”——in this case something like six hours，almost a full nights’ sleep．

Sleep debt is the difference between the amount of sleep you should be getting and the amount you actually get．It’s a deficit(缺乏)that grows every time we skim some extra minutes off our nightly sleep．“People accumulate sleep debt gradually without being noticed，”says William C．Dement，founder of the Stanford University Sleep Clinic．Studies show that such short—term sleep deprivation leads to a foggy brain，worsened vision，and trouble remembering. Long-term effects include obesity，insulin(胰岛素)resistance, and heart disease.A survey by the National Sleep Foundation reports that we’re losing one hour of sleep each night一一more than two full weeks of sleep every year.

The good news is that，like all debt, with some work，sleep debt can be repaid. Adding an extra hour or two of sleep a night is the way to catch up．For the long—term lack of sleep，take it easy for a few months to get back into a natural sleep pattern．

Go to bed when you are tired，and allow your body to wake you in the morning(no alarm clock allowed)．You may find yourself catatonic(有紧张症的)in the beginning of the recovery cycle：expect to have ten hours shut-eye per night. As the days pass, however，the amount of sleeping time will gradually decrease.

So earn back that lost sleep——and follow the dictates of your innate(固有的)sleep needs. You’ll feel better．“When you put away sleep debt,you become a superman，”says Stanford’s Dement,talking about the improved mental and physical capabilities that come with being well rested．

51．If you have short—term sleep deprivation, ____________.

A．you can think and remember things clearly

B．you can still see everything very clearly

C．you can drive your car easily

D．you may have a poor sight

52．The example of sleep math is used to show____________

A．in what case you build up a sleep debt

B．why you need six hours’ sleep every night

C．why you are full of energy even when you don’t haye enoug sleep

D．you should drink coffee to keep energetic when you don’t have enough sleep

53．The author begins Paragraph 3 with ____________.

A．an order          B．a story             C．a definition            D．an example

54．By saying the undedined sentence in the last paragraph，Dement means ____________

A．a superman always needs a lot of sleep

B．you will be in a good state with enough sleep

C．you can become superman after you repay your debt

D．You will become superman if you don’t make up for sleep debt

55．What might be the most suitable title for the passage?

A．Can you catch up on lost sleep?             B．How can you keep energetic?

C．Can you have a good sleep?                  D．What is sleep debt?

A team of engineers at Harvard University has been inspired by Nature to create the first robotic fly. The mechanical fly has become a platform for a series of new high-tech integrated systems. Designed to do what a fly does naturally, the tiny machine is the size of a fat housefly. Its mini wings allow it to stay in the air and perform controlled flight tasks.
“It’s extremely important for us to think about this as a whole system and not just the sum of a bunch of individual components (元件),” said Robert Wood, the Harvard engineering professor who has been working on the robotic fly project for over a decade. A few years ago, his team got the go-ahead to start piecing together the components. “The added difficulty with a project like this is that actually none of those components are off the shelf and so we have to develop them all on our own,” he said.
They engineered a series of systems to start and drive the robotic fly. “The seemingly simple system which just moves the wings has a number of interdependencies on the individual components, each of which individually has to perform well, but then has to be matched well to everything it’s connected to,” said Wood. The flight device was built into a set of power, computation, sensing and control systems. Wood says the success of the project proves that the flying robot with these tiny components can be built and manufactured.
While this first robotic flyer is linked to a small, off-board power source, the goal is eventually to equip it with a built-in power source, so that it might someday perform data-gathering work at rescue sites, in farmers’ fields or on the battlefield. “Basically it should be able to take off, land and fly around,” he said.
Wood says the design offers a new way to study flight mechanics and control at insect-scale. Yet, the power, sensing and computation technologies on board could have much broader applications. “You can start thinking about using them to answer open scientific questions, you know, to study biology in ways that would be difficult with the animals, but using these robots instead,” he said. “So there are a lot of technologies and open interesting scientific questions that are really what drives us on a day to day basis.”
(392 words)
【小题1】The difficulty the team of engineers met with while making the robotic fly was that __________.

Driving cars, trucks and motorcycles is an important part of our lives. We do it every day to get to work, to school or to friends' houses.
Traffic accidents declare millions of lives every year worldwide. In Taiwan alone, over seven people are killed in accidents every day. The annual death rate from traffic accidents in Taiwan is twice that of Japan.
To allow traffic to move smoothly and safely, everybody must follow the rules. Before you drive, learn all the traffic laws. That way of driving is safe, convenient and even fun!
【小题1】The underlined sentence “Traffic accidents declare millions of lives worldwide” in the passage means “_______”.

A．Traffic accidents make some people become millionaires

B．Many people die from traffic accidents

C．Millions of people say they themselves have had traffic accidents

D．Millions of people remain healthy after traffic accidents

A．you are patient	B．you obey all the traffic rules
C．you don't cut another car off	D．you wait in line at a red light

C
A long-awaited final report from the Food and Drug Administration (FDA) concludes that foods from healthy cloned animals and their offspring(后代) are as safe as those from ordinary animals, effectively removing the last US regulatory(监管的) barrier to the marketing of meat and milk from cloned cattle, pigs and goats.
The 968-page final report, not yet released but obtained by The Washington Post, finds no evidence to support people’s concerns that food from clones may have hidden risks.
But, recognizing that a majority of consumers are wary of food from clones—and that cloning could damage the good image of American milk and meat—the report includes hundreds of pages of raw(原始的) data so that others can see how it came to its conclusions.
The report also admits that human health concerns are not the only subject raised by the coming-out of cloned farm animals.
“Moral, religious and ethical concerns have been raised,” the agency notes in a document accompanying the report. But the report is “exactly a science-based evaluation.” It reports, because the agency is not authorized by law to consider those subjects.
In practice, it will be years before foods from clones make their way to store shelves in large quantities, in part because the clones themselves are too valuable to kill for meat or milk. Instead, the expensive animals—replicas(复制品) of some of the finest farm animals ever born—will be used firstly as breeding stock to create what supporters say will be a new generation of superior farm animals.
When food from those animals hits the market, the public may yet have its say. FDA officials have said they do not expect to require food from clones to be labeled as such, but they may allow foods from ordinary animals to be labeled as not from clones.
64.   What can we infer from the first paragraph?
A.    FDA has waited for a long time to get this final report.
B.    Products from cloned animals have been put into the market before.
C.    People are having the products from cloned animals safely.
D.    There have been once opposite opinions against cloned products.
65.   What does the underlined word “wary” mean?
A. Disappointed.           B. Careful.         C. Fond.                                 D. Proud.
66.   It will be a few years before foods from clones come into the market, partly because _____.
A.    people have little knowledge of the cloned animals
B.    supporters can’t give powerful evidence to support that
C.    the few cloned animals will first be used to create superior animals
D.    they are a new generation for the customers and are too valuable for the customers
67.   What can we conclude from the passage?
A.    FDA officials encourage people to eat more food from clones.
B.    FDA officials think the food from clones will sell better than ordinary food.
C.    People only worry about the health problems when it comes to foods from the clones.
D.    All the foods will not have detailed labels on them.