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Below is some advice on how to prevent cancer:
8 Ways to Avoid Cancer in Your Life
1. Eat Blueberries
Aside from being a healthy and delicious snack, blueberries contain pterostilbene, which has important colon（结肠） cancer-fighting prosperities. But wait, it gets better. Blueberries also offer a large dose of vitamins C (14 milligrams per cup). So at breakfast, try to take in a cup and a half of blueberries in your cereal or yogurt, or mixed with other berries.
2. Drink Pomegranate（石榴）Juice
The deep red juice of the pomegranate contains polyphenols, isoflavones and ellagic acid, which together create a powerful anticancer mixture. Most recently, researchers from the University of Wisconsin at Madison has discovered that 16 ounces of pomegranate juice per day also may inhibit the growth of lung cancer.
3. Relax
Feeling stressed or worried? Find ways to relax and you may reduce your chances of developing cancer. Purdue University researchers tracked 1,600 men over 12 years and found that half of those with high levels of worry died during the study period. Only 20 percent of the optimists died before the study were completed, while 34 percent of the extremely anxious men died of some type of cancer. Instead of stressing about the past or future, focus on the present and relax!
4. Take Selenium（硒）
Selenium is well known for its cancer-fighting properties. In a study of almost 1,000 men, researchers from the Journal of the National Cancer Institute found that when men with the lowest initial levels of selenium in their bodies received a daily supplement over a 4 year period, they cut their prostate（前列腺） cancer risk by a remarkable 92 percent. However, it is possible to get too much of a good thing, so monitor your intake of selenium-containing supplements, Brazil nuts, tuna, meats and grains carefully.
5. Eat Sushi（寿司）
Seaweed may not be your idea of a great snack, but it is high in fiber, calcium and iron, and dry, roasted seaweed sheets used in sushi provide the additional benefits of vitamins A and C. Sushi rolls are also high in protein— a typical spicy tuna roll has only 290 calories but packs 24 grams of protein. So don’t skimp（节省）on the Sushi!
6. Enjoy the Outdoors
Vitamin D causes early death of cancer cells. A study published in the American Journey of Clinical Nutrition reported that women who supplemented their diets with 1,000 international. Units of vitamin D every day had a 60 percent to 77 percent lower incidence of cancer ever a four-year period that did women taking a placebo(无效对照剂). Experts recommend supplementing your fun in the sun with 1,100 to 2,000IU of vitamin D each day.
7. Breathe Clean Air
There’s no question that secondhand smoke kills. A recent American Journal of Public Health study showed that nonsmokers working in smoky places had three times the amount of carcinogen（致癌物质） in their urine（尿） than nonsmokers working in smoke-free locations. What’s worse, their levels of the carcinogen rose 6 percent for every hour worked. Nine states have banned smoking in all workplaces, bars and restaurants. The message is clear: Do whatever you can to avoid the cloud of smoke.
8. Break a Sweat
Even a small amount of exercise can offer major cancer-fighting benefits. In a study of 29,110 men published in the International Journal of Cancer, men who exercised just once a week had a percent lower risk of metastasis(转移性) prostate cancer than men who didn’t work out at all. The better the frequency, duration and intensity of the exercise, the bigger the reduction in risk, according to the study.
To prevent yourself from catching colon cancer, you should eat ____ as often as possible.

A．sushi

B．blueberries

C．pomegranates

D．Vitamin D

A person is very likely to catch some type of cancer if ______.

A．he is very fond of exercise every day.

B．he is addicted to smoking

C．he is always feeling extremely stressed or worried

D．he likes to have meals in restaurants

If you want to keep cancer away, it is particularly important to ______.

A．have a daily supplement of vitamins B and C

B．try to ignore the secondhand smoking

C．take in as many selenium-containing supplements as possible

D．having exercise as often as possible

Brrriiinnng. The alarm clock announces the start of another busy weekday in the morning. You jump out of bed, rush into the shower, into your clothes and out the door with hardly a moment to think. A stressful journey to work gets your blood pressure climbing. Once at the office, you glance through the newspaper with depressing stories or reports of disasters. In that sort of mood, who can get down to work, particularly some creative, original problem-solving work?
The way most of us spend our mornings is exactly opposite to the conditions that promote flexible, open-minded thinking. Imaginative ideas are most likely to come to us when we’re unfocused. If you are one of those energetic morning people, your most inventive time comes in the early evening when you are relaxed. Sleepy people’s lack of focus leads to an increase in creative problem solving. By not giving yourself time to tune into your wandering mind, you’re missing out on the surprising solutions it may offer.
The trip you take to work doesn’t help, either. The stress slows down the speed with which signals travel between neurons (神经细胞), making inspirations less likely to occur. And while we all should read a lot about what’s going on in the world, it would not make you feel good for sure, so put that news website or newspaper aside until after the day’s work is done.
So what would our mornings look like if we wanted to start them with a full capacity for creative problem solving? We’d set the alarm a few minutes early and lie awake in bed, following our thoughts where they lead. We’d stand a little longer under the warm water of the shower, stopping thinking about tasks in favor of a few more minutes of relaxation. We’d take some deep breaths on our way to work, instead of complaining about heavy traffic. And once in the office—after we get a cup of coffee—we’d click on links not to the news of the day but to the funniest videos the web has to offer.
According to the author, we are more creative when we are _______.

A．focused

B．relaxed

C．awake

D．busy

What does the author imply about newspapers?

A．They are solution providers.

B．They are a source of inspiration.

C．They are normally full of bad news.

D．They are more educational than websites.

By “tune into your wandering mind” (in Para. 2), the author means “_______”.

A．wander into the wild

B．listen to a beautiful tune

C．switch to the traffic channel

D．stop concentrating on anything

The author writes the last paragraph in order to _______.

A．offer practical suggestions

B．summarize past experiences

C．advocate diverse ways of life

D．establish a routine for the future

Plastic is everywhere because plastic is an extremely useful material. It is cheap, strong and lightweight. What’s more, it can take on nearly any form or shape, from soft and stretchy (有弹性的) to hard and glasslike.
Plastic, however, is far from perfect. It may even be bad for us. Studies now suggest that poisonous chemicals can get out of some types of plastic, get into our bodies, and cause a variety of health problems, including cancer, birth defects and attention deficit hyperactivity disorder (注意缺陷障碍).
Two types of chemicals in particular have raised special concern lately. They are called phthalates (邻苯二甲酸盐) and Bisphenol-A (二酚基丙烷), BPA for short. Not all plastic products contain them. But the ones that do are surrounded by controversy (争议). That’s because experts disagree on how dangerous these chemicals are.
Plastic is a single word, but plastic isn’t just one thing. What all plastics share in common are plasticizers -- special chemicals that allow the material to be changed into nearly any shape or texture. Plasticizers (塑化剂) are added to plastic during the manufacturing process.
Phthalates and BPA are two types of plasticizers that work in different ways. Phthalates add softness to things like shampoo bottles, raincoats and rubber. They are also used in perfumes and makeup. BPA, on the other hand, gives a hard, clear, almost glasslike feel to products such as infant bottles. BPA also appears in food and soda cans, DVDs and other unexpected places.
How do these chemicals get into us? When plastic is heated in the microwave or dishwasher, chewed on or scratched, the chemicals can seep (渗透) out of the plastic. Even though we can’t see them, we eat them, drink them and breathe them in.
Scientists and parents are especially worried about young children, who tend to chew on everything, including plastic.Dozens of countries, including the European Union, Japan, Canada and Mexico have already banned phthalates from products made for children younger than three. California and Washington have done the same. And a number of other states are considering similar rules. As for BPA, Canada became the first country to ban the chemical from baby bottles. A dozen states are considering it.
What can we know about the plastic from the first paragraph?

A．Its characters and effects.	B．Its wide use and bad points.
C．Its importance and chemicals.	D．Its popularity and advantages.

Which of the following products contains BPA?

A．A soft plastic cup.	B．A pencil eraser.
C．A baby milk bottle.	D．A new perfume.

Phthalates and BPA can get into us __________.

A．through mouth or nose	B．through blood transfusion
C．by feeling plastic products	D．by heating in the microwave

What is the passage mainly about?

A．A new ban on plastic products.	B．Problems caused by the plastic.
C．Good points of the plastic.	D．The use of plasticizers.

One day when I was driving on the freeway, I noticed all the way there were large dividing walls, which had been built between it and the road running parallel to it, for noise reduction (减少) and a sense of separation. The purpose was to create a sense of privacy (隐私) for people on the other side.
This got me thinking: How often do we put up mental barriers that keep us distant from others? Lifting the artificial barriers that keep us apart can offer opportunities to express our goodwill and create better relationships. If we can do like this, maybe our life will be a little different.
There is a little post office in a nearby town, and since it is closer to me than the post office in my own town, I go there. One day, with many people jammed into the little building, a man came hurrying in to mail a letter, and the girl at the counter saw he had too little postage on it. She told him he needed 2 more cents. Obviously he was a little at a loss. He had hurried over from his office, and didn’t have any money on him or time to stand in line. He was going to run back to get the needed money and wait in line again, but he hurried to get the letter mailed in the first place.
As we were watching him, one woman volunteered a two-cent stamp, and the whole line became very quiet. It was a beautiful moment. The man hesitated for a little while and asked her if she was sure, and she assured him she was fine with giving him the stamp. He offered to go back to his office to get the two cents, and she told him not to bother.
It was a small thing, but it meant something to both of the people involved, and to the rest of us. We aren’t a yard that needs defining or a freeway that needs barriers. We are human beings who can contribute to each other’s wellbeing by taking time to pay attention and interact. After all, we are all parts of a whole living in society.
The purpose of the first paragraph is to __________.

A．summarize the main idea

B．give detailed information

C．tell readers the author’s opinion

D．introduce the topic

What happened after the man being told he needed two more cents?

A．The man went back to his office immediately.

B．The man turned to a lady for help.

C．A woman offered a stamp to the man.

D．The man waited in line patiently.

What can we learn about the author?

A．She pays too much attention to privacy.

B．She believes people should participate in the world around them.

C．She confuses real barriers with false ones.

D．She insists all small things always have the greatest meaning.

Which of the following would be the best title for the passage?

A．Artificial Barriers	B．Unnecessary Separation
C．An Unforgettable Experience	D．The Kindness of People

When my brother and I were young, my mom would take us on Transportation Days.
It goes like this: You can’t take any means of transportation more than once. We would start from home, walking two blocks to the rail station. We’d take the train into the city center, then a bus, switching to the tram, then maybe a taxi. We always considered taking a horse carriage in the historic district, but we didn’t like the way the horses were treated, so we never did. At the end of the day, we took the subway to our closet station, where Mom’s friend was waiting to give us a ride home——our first car ride of the day.
The good thing about Transportation Days is not only that Mom taught us how to get around. She was born to be multimodal (多方式的). She understood that depending on cars only was a failure of imagination and, above all, a failure of confidence—the product of a childhood not spent exploring subway tunnels.
Once you learn the route map and step with certainty over the gap between the train and the platform, nothing is frightening anymore. New cities are just light-rail lines to be explored. And your personal car, if you have one, becomes just one more tool in the toolbox—and often an inadequate one, limiting both your mobility and your wallet.
On Transportation Days, we might stop for lunch on Chestnut Street or buy a new book or toy, but the transportation was the point. First, it was exciting enough to watch the world speed by from the train window. As I got older, my mom helped me unlock the mysteries that would otherwise have paralyzed my first attempts to do it myself: How do I know where to get off? How do I know how much it costs? How do I know when I need tickets, and where to get them? What track, what line, which direction, where’s the stop, and will I get wet when we go under the river?
I’m writing this right now on an airplane, a means we didn’t try on our Transportation Days and, we now know, the dirtiest and most polluting of them all. My flight routed me through Philadelphia. My multimodal mom met me for dinner in the airport. She took a train to meet me.
Which was forbidden by Mom on Transportation Days?

A．Having a car ride.

B．Taking the train twice.

C．Buying more than one toy.

D．Touring the historic district.

According to the writer, what was the greatest benefit of her Transportation Days?

A．Building confidence in herself.

B．Reducing her use of private cars.

C．Developing her sense of direction.

D．Giving her knowledge about vehicles.

The underlined word “paralyzed” (in Para. 5) is closest in meaning to “_______”.

A．displayed

B．justified

C．ignored

D．ruined

Which means of transportation does the writer probably disapprove of?

A．Airplane.

B．Subway.

C．Tram.

D．Car.

A．Students’ Union	B．Gayle Moore
C．The International Center	D．LifePlanning Workshop