Some people can stay up all night and still get work done the next day. I’m not one of them. After a night without enough sleep, I feel bad-tempered. I have trouble remembering things. And all I want to do is go to bed.

How do you feel after you’ve stayed up late to finish schoolwork or the day after an overnight party? Scientists now say that your answers to these questions may depend on your genes.

New research suggests that a gene called “period 3” influences how well you function without sleep. The “period 3” gene comes in two forms: short and long. Everyone has two copies of the gene. So, you may have two longs, two shorts, or one of each. Your particular combination depends on what your parents passed on to you.

Scientists from the University of Surrey in England studied 24 people who had either two short or two long copies of “period 3”. Study participants (参与者) had to stay awake for 40 hours straight. Then, they took tests that measured how quickly they pushed a button when numbers flashed (闪过) on a screen and how well they could remember lists of numbers.

Results showed that the people with the short form of “period 3” performed much better on these tests than the people with the long form did. In both groups, people performed worst in the early morning.

After the first round of experiments, participants were finally allowed to sleep. People in the group that performed well on the tests (those with the short form of “period 3”) took about 18 minutes to nod off.

While people with the long “period 3” gene fell asleep in just 8 minutes. They also spent more time on deep sleep. That suggests that people with the long form of the gene need more and deeper sleep to keep their brains working in top form.

I think I must have the long form of “period 3”. What about you?

The purpose of this passage might be ___________

A.   to tell us the importance of plenty of sleep.

B.   to tell the result of a research on sleepy gene.

C.    to inform the harm of lacking sleep.        

D.   to announce the sleeping rules of humans.

What kind of people need less sleep according to the research?

A.   Those with two short copies of the gene.

B. Those with two long copies of the gene. 

C. Those with one short and one long copy of the gene.

D. Those with three short copies of the gene.

If one lacks enough sleep, one should avoid doing important or dangerous things ___________.

A. at noon            B. at night    

C. in the afternoon        D. at dawn

Why did the writer think he or she had the long form of “period 3”?

A.   Because the writer could remain energetic without enough sleep.                 

B. Because the writer could do things correctly at dawn.   

C. Because the writer needed more sleep to keep energetic.

D. Because the writer recovered quickly after sleep.  

Some people can stay up all night and still get work done the next day. I’m not one of them. After a night without enough sleep, I feel bad-tempered. I have trouble remembering things. And all I want to do is go to bed.

How do you feel after you’ve stayed up late to finish schoolwork or the day after an overnight party? Scientists now say that your answers to these questions may depend on your genes.

New research suggests that a gene called “period 3” influences how well you function without sleep. The “period 3” gene comes in two forms: short and long. Everyone has two copies of the gene. So, you may have two longs, two shorts, or one of each. Your particular combination depends on what your parents passed on to you.

Scientists from the University of Surrey in England studied 24 people who had either two short or two long copies of “period 3”. Study participants (参与者) had to stay awake for 40 hours straight. Then, they took tests that measured how quickly they pushed a button when numbers flashed (闪过) on a screen and how well they could remember lists of numbers.

Results showed that the people with the short form of “period 3” performed much better on these tests than the people with the long form did. In both groups, people performed worst in the early morning.

After the first round of experiments, participants were finally allowed to sleep. People in the group that performed well on the tests (those with the short form of “period 3”) took about 18 minutes to nod off.

While people with the long “period 3” gene fell asleep in just 8 minutes. They also spent more time on deep sleep. That suggests that people with the long form of the gene need more and deeper sleep to keep their brains working in top form.

I think I must have the long form of “period 3”. What about you?

1.The purpose of this passage might be ___________

A.    to tell us the importance of plenty of sleep.

B.    to tell the result of a research on sleepy gene.

C.     to inform the harm of lacking sleep.           

D.    to announce the sleeping rules of humans.

2.What kind of people need less sleep according to the research?

A.    Those with two short copies of the gene.

B. Those with two long copies of the gene. 

C. Those with one short and one long copy of the gene.

D. Those with three short copies of the gene.

3.If one lacks enough sleep, one should avoid doing important or dangerous things ___________.

A. at noon               B. at night      

C. in the afternoon           D. at dawn

4.Why did the writer think he or she had the long form of “period 3”?

A.    Because the writer could remain energetic without enough sleep.                

B. Because the writer could do things correctly at dawn.    

C. Because the writer needed more sleep to keep energetic.

D. Because the writer recovered quickly after sleep.  

 

 We firmly believe that war never settles anything.It only _______ violence.

A.runs into                             B.comes from

C.leads to                                  D.begins with

 

f cars had wings，they could fly and that just might happen, beginning in 2011.The company Terrafugia, based in Woburn, Massachusetts, says it plans to deliver its car-plane, the Transition, to customers by the end of 2011.

“It’s the next‘wow’vehicle，”said Terrafugia vice president Richard Gersh.“Anybody can buy a Ferrari, but as we say, Ferraris don’t fly.”

The car plane has wings that unfold for flying—a process the company says takes one minute—and fold back up for driving.A runway is still required to take off and land.

The Transition is being marketed more as a plane that drives than a car that flies, although it is both.The company has been working with FAA to meet aircraft regulations, and with the National Highway Traffic Safety Administration to meet vehicle safety regulations.

The company is aiming to sell the Transition to private pilots as a more convenient and cheaper way to fly.They say it saves you the trouble from trying to find another mode of transportation to get to and from airports: You drive the car to the airport and then you’re good to go.When you land, you fold up the wings and hit the road.There are no expensive parking fees because you don’t have to store it at an airport—you park it in the garage at home.

The car-plane is designed to fly primarily under 10,000 feet.It has a maximum takeoff weight of 1,430 pounds, including fuel and passengers.Terrafugia says the Transition reduces the potential for an accident by allowing pilots to drive under bad weather instead of flying into marginal(临界)conditions.

The Transition’s price tag: $194,000, But there may be additional charges for options like a radio, transponder or GPS.Another option is a full-plane parachute.

“If you get into a very awful situation, it is the necessary safety option,”Gersh said.

So far,the company has more than 70 orders with deposits.“We’re working very closely with them, but there are still some remaining steps,”Brown said.

1.We can learn from the first paragraph that       .

A.car-planes will be popular in 2011

B.people might drive a car-plane in 2011

C.both Transition and Ferrari can take off and land

D.Richard Gersh is the vice president of Massachusetts

2.lt takes the car-plane one minute to       .

A.fold and unfold its wings           B.unfold wings for flying

C.land in the airport                 D.meet flying safety regulations

3..According to the passage, which of the following is NOT true?

A.The car-plane needs a runway to take off and land.

B.To mcet aircraft regulations, the company has been working with FAA.

C.The car-plane may fly as high as normal planes.

D.People can park the car-plane in the garage at their home.

4..The underlined word“it”in the last but one paragraph refers to       .

A.the radio                           B.the transponder

C.the GPS                            D.the full-plane parachute

5.What’s the best title for the passage?

A.Cars With Wings May Be Just Around The Corner.

B.Which to Choose: A Ferraris or a Car Plane?

C.A more Convenient and Cheaper Way to Fly.

D.Cars With Wings Can Fly as Fast as Planes.

 

 

 

There are tow types of people in the world. Although they have equal degree of health and wealth and other comforts of life, one becomes happy, the other becomes unhappy. This arises from the different ways in which they consider things, persons, events and the resulting effects upon their minds.

People who are to be happy fix their attention on the convenience of things: the pleasant parts of conversation, the well prepared dishes, the goodness of the wine, the fine weather. They enjoy all the cheerful things. Those who are to be unhappy think and speak only of the opposite things. Therefore, they are continually dissatisfied. By their remarks, they sour the pleasure of society, offend(hurt) many people, and make themselves disagreeable everywhere. If this turn of mind was founded in nature, such unhappy persons would be the more to be pitied. The intention of criticizing and being disliked is perhaps taken up by imitation It grows into a habit, unknown to its possessors. The habit may be strong, but it may be cured when those who have it realize its bad effects on their interests and tastes. I hope this little warning may be of service to them, and help them change this habit.

Although it fact it is chiefly an act of the imagination, it has serious results in life since it brings on deep sorrow and bad luck. Those people offend many others; nobody loves them, and no one treats them with more than the most common politeness and respect. This frequently puts them in bad temper and draws them into arguments. If they aim at getting some advantages in social position or fortune, nobody wishes them success. Nor will anyone start a step or speak a word to favor their hopes. If they bring on themselves public objections, no one will defend or excuse them, and many will join to criticize their wrong doings. These should change this bad habit and be pleased with what is pleasing, without worrying needlessly about themselves and others. If they do not, it will be good for others to avoid any contact with them. Otherwise, it can be disagreeable and sometimes very inconvenient, especially when one becomes mixed up in their quarrels.

63. People who are unhappy     .

         A. always consider things differently form others

         B. usually are affected by the results of certain things

         C. usually misunderstand what others think or say

         D. always discover the unpleasant side of certain things

64. The underlined phrase “sour the pleasure of society” most nearly means “     ”.

         A. have a good taste with social life        B. make others unhappy

         C. tend to scold others openly                            D. enjoy the pleasure of life

65. We can conclude from the passage that     .

         A. we should pity all such unhappy people

         B. such unhappy people are dangerous to social life

         C. people can get rid of the habit of unhappiness

         D. unhappy people can not understand happy persons

66. If such unhappy persons insist on keeping the habit, the author suggests that people should    .

         A. prevent and communication with them     

         B. show no respect and politeness to them

         C. persuade them to recognize the bad effects

         D. quarrel with them until they realize the mistakes

67. In this passage, the writer mainly      .

         A. describes two types of people              B. laughs at the unhappy people

         C. suggests ways to help the unhappy    D. tells people how to be happy in life