Believe it or not, optical illusion(错觉) can cut highway crashes.

Japan is a case in point. It has reduced automobile crashes on some roads by nearly 75 percent using a simple optical illusion. Bent strips, called chevrons（人字形标志）, painted on the roads make drivers think that they are driving faster than they really are, and thus drivers slow down.

Now the American Automobile Association Foundations For Traffic Safety in Washington D.C. is planning to repeat Japan’s success. Starting next year, the foundation will paint chevrons and other patterns of stripes on selected roads around the country to test how well the patterns reduce highway crashes.

Excessive（过分） speed plays a major role in as much as one fifty of all fatal traffic accidents, according to the foundation. To help reduce those accidents, the foundation will conduct its tests in areas where speed-related hazards(危险) are the greatest-curves, exit slopes, traffic circles, and bridges.

Some studies suggest that straight, horizontal bars painted across roads can initially cut the average speed of drivers in half. However, traffic often returns to full speed within months as drivers become used to seeing the painted bars.

Chevrons, scientists say, not only give drivers the impression that they are driving faster than they really are but also make a lane（车道） appear to be narrower. The result is a longer lasting reduction of highway speed and the number of traffic accidents.

1.The passage mainly discusses________.

2.On roads painted with chevrons, drivers tend to feel that________.

3.According to the foundation,____can cause serious traffic accident

4.The advantage of chevrons over straight, horizontal bars is that the former______.

5.The Americans automobile association foundation for traffic safety plans to____.

Sport is not only physically challenging，but it can also be mentally challenging. Criticism from coaches，parents，and other teammates，as well as pressure to win can create an excessive amount of anxiety or stress for young athletes. Stress can be physical，emotional，or psychological，and research has indicated that it can lead to burnout. Burnout has been described as dropping or quitting of an activity that was at one time enjoyable.
The early years of development are critical years for learning about oneself. The sport setting is one where valuable experiences can take place. Young athletes can，for example，learn how to cooperate with others，make friends，and gain other social skills that will be used throughout their lives. Coaches and parents should be aware，at all times，that their feedback to youngsters can greatly affect their children. Youngsters may take their parents’ and coaches’ criticisms to heart and find flaws（缺陷）in themselves.
Coaches and parents should also be cautious that youth sport participation does not become work for children. The outcome of the game should not be more important than the process of learning the sport and other life lessons. In today’s youth sport setting，young athletes may be worrying more about who will win instead of enjoying themselves and the sport. Following a game, many parents and coaches focus on the outcome and find fault with youngsters’ performances. Positive reinforcement（正面强化）should be provided regardless of the outcome. Research indicates that positive reinforcement motivates and has a greater effect on learning than criticism. Again，criticism can create high levels of stress, which can lead to burnout.
72．An effective way to prevent the burnout of young athletes is ____________.
A．to make sports less competitive
B．to make sports more challenging
C．to reduce their mental stress
D．to increase their sense of success
73．According to the passage sport is positive for young people in that____________.
A．it can help them learn more about society
B．it teaches them how to set realistic goals for themselves
C．it enables them to find flaws in themselves
D．it can provide them with valuable experience
74．Many coaches and parents are in the habit of criticizing young athletes ________.
A．without realizing criticism may destroy their self-confidence
B．in order to make them remember life lessons
C．believing that criticism is beneficial for their early development
D．so as to put more pressure on them
75．The author’s purpose in writing the passage is ____________.
A．to persuade athletes not to worry about criticism
B．to emphasize the importance of positive reinforcement to young athletes
C．to discuss the skill of combining criticism with encouragement
D．to teach young athletes how to avoid burnout

Alone in the darkness under layers of rubble (碎石) , Dan Woolley felt blood streaming from his head and leg.

Woolley, an aid worker, husband, and father of two boys, followed instructions on his cell phone to survive the January 12 earthquake in Haiti.

“I had an app that had pre-downloaded all this information about treating wounds. So I  looked up excessive bleeding and I looked up compound fracture(断裂),” Woolley told CNN.

The application on his iPhone is filled with information about first aid and CPR from the American Heart Association. “So I knew I wasn’t making mistakes, ” Woolley said. “That gave me confidence to treat my wounds properly.”

Trapped in the ruins of the Hotel Montana in Port-au-Prince, he used his shirt to bandage his leg, and tied his belt around the wound. To stop the bleeding on his head, he firmly pressed a sock to it. Concerned he might have been experiencing shock, Woolley used the app to look up what to do. It warned him not to sleep. So he set his phone alarm to go off every 20 minutes.

Once the battery got down to less than 20 percent of its power, Woolley turned it off. By then, he says, he had trained his body not to sleep for long periods, drifting off only to wake up within minutes.

With his injuries tended to, he wrote a note to his family in his journal: “I was in a big accident, an earthquake. Don’t be upset at God. He always provides for his children even in hard times. I’m still praying that God will get me out, but he may not. But even so he will always take care of you.”

After more than 60 hours, Woolley was pulled from the rubble.

“Those guys are rescue heroes,” he said to the crew that pulled him out.

Which of the following best summarizes the passage?

A. How to deal with the wound.

B. Try to get in touch with outside.

C. How to stay awake under the ground.

D. An unforgettable experience in the earthquake.

Woolley set his phone alarm to go off every 20 minutes because_____.

A. he tried his best to communicate with rescuers

B. he was forced to stay awake to check his wounds

C. he was afraid that sleep might do harm to him

D. he needed to use the app to look up what to do

The underlined sentence suggests that_________.

A. he turned off his iPhone to save power    B. the battery of his IPhone lasted long

C. he didn’t want his iPhone to disturb him   D. his iPhone went off because of lack of power

What Woolley wrote his journal showed _______.

   A. he expected his family to lend a hand     B. he didn’t lose heart in hard times

   C. he cared more for his family than his life   D. his children made him upset

With his attention________on the shops along the roadside，he knocked an old man down while riding to school.

A  concentrating     B．concentrated     C．to concentrate      D．concentrates

答案　B

解析　考查词组，故选B项。

The fourth round of heavy smog to hit Beijing in four weeks has sent more people to the hospital with respiratory（呼吸的） illnesses and led to calls for laws to control the pollution.

Pan Shiyi, a celebrity real estate developer said he is planning to propose (提案) a Clean Air Act to the local government. As a representative to the Beijing Municipal People's Congress, he started an online survey at 9:20 a.m. Within three hours, more than 25,000 web users, or 99 percent of total respondents（应答者）, welcomed his proposal on Sina Weibo, China's Twitter.

They have good reasons to stand alongside Pan. The latest round of haze（雾霾）reduced visibility to under 500 meters in many parts of the city. The smog has also led to a great increase in respiratory illnesses, particularly among children and the elderly. Anxious parents and doctors almost all blame the smoggy air for the illnesses. Though most schoolchildren are home for the winter holidays, the bad air can easily move indoors. Besides, ordinary medical masks fail to provide adequate protection, so some people have turned to gas masks and respirators（呼吸器）.

The causes of the scary smog are rather mysterious, though experts blame excessive emissions and the mountains around Beijing that trap pollution in winter, unless there is adequate wind to clear it away. Some critics have pointed fingers at China’s top two oil firms, China National Petroleum Corp and China Petrochemical Corporation, saying the companies’ outdated production technologies produce large quantities of substandard, high-polluting gas fuel.

Meanwhile, concerned Beijingers have moved their brainstorming sessions to cyberspace. If Pan’s proposal for a Clean Air Act is adopted, netizens say the new law should include items providing for “car-free days” in times of smog, higher standards for vehicle fuel, stricter restrictions on industrial and exhaust gas emissions, and more effective protection for the public.

Beijing is not the only city that has ever lost the blue sky. Five days of thick fog caused thousands of deaths in Britain in December 1952, urging the government to pass the first Clean Air Act in 1956, which introduced smokeless zones and cleaner fuels to reduce pollution. That may provide some experience for Beijing to refer to.

1.What can we learn from the passage?

A．People are clear about the causes of the smoggy weather.

B．Children staying indoors will not get respiratory illnesses.

C．Smog is worse for people with lower resistance to diseases.

D．Masks can give people protection against the smoggy weather.

2.Britain is mentioned in the last paragraph to ______.

A．suggest Beijing should learn from other countries

B．let people know many places have this problem

C．tell people the situation in Britain is worse

D．call on the government to pass Britain’s Clean Air Act

3.What’s the best title for this passage？

A．The Use of Gas masks and Respirators

B．Beijingers Call for Clean Air Act

C．Effective Protection for Blue Sky

D．The Mysterious Causes of the Scary Smog