Cities alarmed by deaths and injuries of pedestrians are taking efforts to make crosswalks safer for people on foot, especially seniors and children who need more time to cross streets.
A pedestrian is killed in a traffic accident in the USA every 110 minutes; one is injured every nine minutes, according to official data. Crosswalks can be especially dangerous for the elderly. Among people 70 and older, 36% of pedestrian deaths in 2006 occurred in crosswalks, compared   with 21% of those younger than 70, according to the Insurance Institute for Highway Safety.
The Federal Highway Administration(FHWA) advise that next year states increase by nearly 15% the amount of  time traffic lights provide for pedestrians to cross the street after the flashing orange hand appears.
FHWA spokesman Doug Hecox says reasons for the change include an aging population that needs more time to cross, health-conscious Americans walking more, children encouraged to walk to prevent getting overweight and high gas prices pushing people to walk instead of drive.
Pedestrian deaths went down by 12% from 5,449 in 1996 to 4,784 in 2006, Bur among those in 2006, 471 were killed in crosswalks, down slightly from 488 ten years earlier, the National Highway Traffic Safety Administration(NHTSA) says.
【小题1】Which of the following is true according to the text?

Life is to be enjoyed. There’s no point in giving up something you enjoy unless you get something back that’s even better. When people eat more healthfully, exercise, quit smoking, and manage stress better, they find that they feel so much better that it reconstructs the reason for making these changes from fear of dying to joy of living. The latest studies show that when you exercise and eat right:

YOUR BRAIN receives more blood flow and oxygen, so you become smarter, think more clearly, have more energy, and need less sleep. Two studies showed that just walking for three hours per week for only three months caused so many new neurons (神经细胞) to grow that it actually increased the size of people’s brains!

YOUR FACE receives more blood flow, so your skin glows more and wrinkles less. You look younger and more attractive. In contrast, an unhealthy diet, chronic emotional stress and smoking reduce blood flow to your face so you age more quickly. Smoking accelerates aging because nicotine causes your arteries (动脉) to narrow down, which decreases blood flow to your face and makes it wrinkle earlier. This is why smokers look years older than they really are.

YOUR GENES change. In May, a study was published in the Proceedings of the National Academy of Sciences showing that changing your lifestyle changes your genes.

YOUR TELOMERES (染色体端粒) get longer. Telomeres are the ends of our chromosomes (染色体) that control how long we live. As telomeres become shorter, then cells age more quickly, thus shortening your life.

 Besides, one of the most interesting findings in the study was that the mothers’ awareness of stress was more important than what was really occurring in their lives. The researchers gave the women a questionnaire and asked them to rate on a three-point scale how stressed they felt each day, and how out of control their lives felt to them. The women who were aware that they were under heavy stress had significantly shortened and damaged telomeres compared with those who felt more relaxed. On the contrary, some of the women who felt relaxed despite raising a disabled child had more normal-appearing telomeres.

In other words, if you feel stressed, you are stressed; if you feel fine, you are fine.

1.Which of the following are good for lengthening one’s life, according to the passage?

① eat healthy food  ② drink plenty of water  ③ take exercise  ④ get up early

⑤ go to sleep early  ⑥ release one’s stress

A. ①③⑥                           B. ①②③                           C. ①⑤⑥                           D. ③④⑥

2.The underlined words “your skin glows” in Paragraph 3 are closest in meaning to _________.

A. your skin becomes white as there is plenty of sunshine

B. your skin becomes smooth as there is much blood in it

C. your skin looks pink as you are healthy

D. your skin becomes soft as you exercise enough

3.In the author’s opinion, when you exercise and eat right, you will experience some changes EXCEPT _________.

A. brains becoming cleverer                                 B. faces having fewer wrinkles

C. arteries turning narrower                         D. genes being changed

4.From the last but one paragraph we learn that _________.

A. mothers will have more damaged telomeres if they raise a disabled child

B. mothers don’t know how to handle stress effectively

C. some women were asked to fill out a questionnaire about educating children

D. mothers’ positive attitudes are the key to managing their stress

5.The best title for the passage would be _________.  

A. Eat better, live better                                         B. Feel better, live longer

C. Less stress, fewer diseases                 D. Smoke more, age sooner

Life is to be enjoyed. There’s no point in giving up something you enjoy unless you get something back that’s even better. When people eat more healthfully, exercise, quit smoking, and manage stress better, they find that they feel so much better that it reconstructs the reason for making these changes from fear of dying to joy of living. The latest studies show that when you exercise and eat right:
YOUR BRAIN receives more blood flow and oxygen, so you become smarter, think more clearly, have more energy, and need less sleep. Two studies showed that just walking for three hours per week for only three months caused so many new neurons (神经细胞) to grow that it actually increased the size of people’s brains!
YOUR FACE receives more blood flow, so your skin glows more and wrinkles less. You look younger and more attractive. In contrast, an unhealthy diet, chronic emotional stress and smoking reduce blood flow to your face so you age more quickly. Smoking accelerates aging because nicotine causes your arteries (动脉) to narrow down, which decreases blood flow to your face and makes it wrinkle earlier. This is why smokers look years older than they really are.
YOUR GENES change. In May, a study was published in the Proceedings of the National Academy of Sciences showing that changing your lifestyle changes your genes.
YOUR TELOMERES (染色体端粒) get longer. Telomeres are the ends of our chromosomes (染色体) that control how long we live. As telomeres become shorter, then cells age more quickly, thus shortening your life.
Besides, one of the most interesting findings in the study was that the mothers’ awareness of stress was more important than what was really occurring in their lives. The researchers gave the women a questionnaire and asked them to rate on a three-point scale how stressed they felt each day, and how out of control their lives felt to them. The women who were aware that they were under heavy stress had significantly shortened and damaged telomeres compared with those who felt more relaxed. On the contrary, some of the women who felt relaxed despite raising a disabled child had more normal-appearing telomeres.
In other words, if you feel stressed, you are stressed; if you feel fine, you are fine

1. 1.

   Which of the following are good for lengthening one’s life, according to the passage?
   ① eat healthy food ② drink plenty of water ③ take exercise ④ get up early
   ⑤ go to sleep early ⑥ release one’s stress

   1. A.
      ①③⑥
   2. B.
      ①②③
   3. C.
      ①⑤⑥
   4. D.
      ③④⑥
2. 2.

   The underlined words “your skin glows” in Paragraph 3 are closest in meaning to ______．

   1. A.
      your skin becomes white as there is plenty of sunshine
   2. B.
      your skin becomes smooth as there is much blood in it
   3. C.
      your skin looks pink as you are healthy
   4. D.
      your skin becomes soft as you exercise enough
3. 3.

   In the author’s opinion, when you exercise and eat right, you will experience some changes EXCEPT ______．

   1. A.
      brains becoming cleverer
   2. B.
      faces having fewer wrinkles
   3. C.
      arteries turning narrower
   4. D.
      genes being changed
4. 4.

   From the last but one paragraph we learn that ______．

   1. A.
      mothers will have more damaged telomeres if they raise a disabled child
   2. B.
      mothers don’t know how to handle stress effectively
   3. C.
      some women were asked to fill out a questionnaire about educating children
   4. D.
      mothers’ positive attitudes are the key to managing their stress
5. 5.

   The best title for the passage would be ______．

   1. A.
      Eat better, live better
   2. B.
      Feel better, live longer
   3. C.
      Less stress, fewer diseases
   4. D.
      Smoke more, age sooner

All of us eat every day, but most of us don’t understand nutrition(营养). How much do you know about good nutrition? Are the following statements true or false?

1. People who don’t eat meat can stay healthy.

  True. As long as people eat enough milk, eggs and meat alternates(替代物), they can get enough protein.

2. Fresh vegetables cooked at home are always more nutritious than canned vegetables.

  False. The difference depends more on how vegetables are prepared than whether they are fresh or canned. Vegetables cooked in too much water can lose a large quantity of vitamins.

3. Food eaten between meals can be just as good for health as food eaten at regular meals.

  True. Nutritional value depends on what types of food you eat, not when you eat them. Eating an egg or an orange between meals can contribute to a good diet.

4. Taking extra vitamins beyond the recommended daily allowances won’t give you more energy.

  True. It’s widely believed that extra vitamins provide more energy. But taking more than the baby needs doesn’t make it function better, just as overfilling your gas tank doesn’t make your car run better.

5. Natural vitamins are better supplements(补充)for the diet than synthetic vitamins.

  False. There is no difference. A vitamin has the same properties(性质)and specific chemical structure whether made in a laboratory or taken from plant or animal parts.

6. Older people need the same amount of vitamins as younger people.

  True. Older people need the same quantity of vitamins as younger people although they need fewer calories. Certain illnesses raise the requirements for some vitamins, but that is true for the young as well as the old.

7. Food grown in poor soil is lower in vitamins than food grown in rich sold.

  False. The vitamins in our foods are made by the plants themselves. They don’t come from the soil.

However, the minerals in a plant depend on the minerals in the soil.

If you have answered these questions correctly, you can say you know much about food and nutrition by today’s standards. But remember that nutrition is a growing science and that may be aged as new information is obtained.

64. The main purpose of the passage is to     .

A．list today’s standards of some food and nutrition

B．introduce what should be eaten and what not

C．explain what is helpful to your health and what is not

D．test our nutrition IQ by judging the problems listed

65. From the surrounding words and sentences we know that the underlined phrase “contribute to” means      .

A．help to bring about                               B．take the place of            

C．make room for                                    D．turn to

66. The underlined word “synthetic” most probably means     in Chinese.

    A．不同的                   B．特别的            C．合成的                   D．天然的