Below are some smart ways to stay healthy suggested by some American experts.

Drink More Coffee

When was the last time you heard a doctor use the word miracle? Well, wake up and smell the coffee: “It’s amazing,” says liver specialist Sanjiv Chopra, MD, professor of medicine at Harvard Medical School. “Coffee is truly a lifesaving miracle drug.”

Though he says it’s still a “scientific mystery” how a simple cup of coffee works its wonders in the body, large epidemiological studies have repeatedly proved its astonishing benefits.

“Drink it black, or at most put a little skim milk in it” to minimize calories, Dr. Chopra recommends. He drinks at least four cups a day himself, though most people should limit themselves to two. And no, he jokes, “I’m not sponsored by Starbucks.”

Take a Walk for Your Memory

Aerobic (有氧运动的) exercise is good for your body, great for your mind, according to the latest research from brain-fitness pioneer Arthur Kramer. Every year, an area called the hippocampus, which is key to memory, shrinks by about 1 to 2 percent, increasing the risk of dementia (脑衰) as the years roll by. However, Kramer’s new investigations reveal that the hippocampi of adults who walked briskly for about 45 minutes three times a week grew by about 2 percent over the course of a year, preventing age-related shrinking.

It’s never too late to start exercising, Kramer says; volunteers in his research were between 55 and 80 years old and hadn’t exercised at all. And it doesn’t need to be backbreaking. “Anything that raises your heart rate seems to work,” he says. “Walking is fine. Just find something you like and do it.”

Early to Bed, Early to Eat

“Being a night owl might increase your waistline,” says sleep expert Michael Breus, PhD. People who stay up late and sleep late tend to eat more fast food and consume more of their calories after 8 p.m. than do normal sleepers.

“One of the easiest things that anyone on a diet can do to improve her results is go to bed and wake up at the same times every day,” Breus says. “This way, your body knows when to sleep and is much more efficient. Organize your eating, too, by trying to eat meals at the same times every day. Avoid eating after 8 p.m., and don’t miss morning meals by sleeping in.”

Use the 20-Second Rule

What’s the difference between having a goal and actually accomplishing it? Just 20 seconds, says positive-psychology specialist Shawn Achor. Researchers have learned that if we can cut 20 seconds off the startup time required for a task, we’re much more likely to follow through. So, for example, if you want to work out in the morning, place your shoes and exercise clothes next to your bed the night before. If you want to praise people more, put thank-you notes and a pen on your desk.

Imagine the Worst to Feel Better

Don’t count your blessings; subtract (扣除) them. “Consciously spend a few minutes imagining what your life would be like without the good things,” says Timothy Wilson, a psychologist at the University of Virginia. You’ll experience stronger feelings of love, gratitude, and happiness when you think about what life would be like without the people and things you love. “And they’ll seem surprising and special again,” he adds.

1. According to Sanjiv Chopra, most people should not drink more than ______ cups of coffee a day.

A. two????????????? B. three????????????? C. four????????????? D. six

2.Which of the following may help people on a diet to improve their results?

A. Raising their heart rate.????????????? B. Taking a walk for their memory.

C. Eating at fixed times.????????????? D. Sleeping in every morning.

3.According to Shawn Achor, if people place their shoes and exercise clothes next to their bed at bedtime, they’re more likely to ______ the next morning.

A. do exercise????????????? ????????????? ????????????? B. set a goal?????????????

C. cut 20 seconds off????????????? D. sleep 20 minutes more

4. Why should people spend a little time imagining their life without good things?

A. To experience surprise.????????????? B. To feel better.?????????????

C. To consider their own blessings.????????????? D. To prepare for the worst.

Birds don’t need lessons in building nests. Fish don’t need coaching to learn how to swim. All animals have instincts. They’re born with natural abilities to do certain things. Wild animals also learn by copying their parents and practicing. And pets learn through training.

But instincts and training aren’t the only keys to animals’ behavior. Scientists say animals’ thoughts and feelings also influence their actions. Animals often make choices, plans, and sensible changes. They can help others and solve problems. Some even make and use tools!

If animals could talk, what would they say about their thoughts and feelings? A gorilla (大猩猩) born in captivity (关在笼子里) has helped answer that question. Koko, a gorilla, was taught to use sign language. She has learned hundreds of words!

Koko once had a pet cat she named All Ball. “Koko love Ball,” she signed. “Soft good cat.” One time, she blamed the cat for biting her by signing “You bad dirty toilet!” When her pet died, Koko cried. “Sad for sleeping cat,” she signed.

Koko calls herself “fine animal gorilla”. She uses sign language to argue, joke, and ask and answer questions.

“Most animals can’t use words to tell us their thoughts,” says Dr. Jonathan Balcombe. “But Koko shows us that animals have their own ideas and feelings.” Dr. Balcombe is a scientist at the Humane Society of the United States. He says there’s even more to discover about animals through field studies. In field studies, people watch animals in their natural environment.

“Scientists who study animals’ natural behaviors learn how animals live and think,” Balcombe says. “That knowledge can help others respect every animal who shares the planet with us.”

The underlined word “instincts” in Paragraph 1 probably refers to the ability that ________.

A. animals copy their parents B. animals learn by practicing

C. animals are born with       D. animals learn through training

The example of Koko shows that ________.

A. an animal likes to have its own pet    B. an animal can learn to speak through training

C. an animal has the natural ability to speak   D. an animal can speak its mind

According to Balcombe, learning how animals live and think can ________.

A. help people care for animals                   B. teach animals to use words

C. train animals to use tools                        D. train animals to be cleverer

What might be the best title for the passage?

A. Raising animals as pets                          B. Understanding animals

C. Training animals to speak  D. Protecting animals from danger

 Birds don’t need lessons in building nests. Fish don’t need coaching to learn how to swim. All animals have instincts. They’re born with natural abilities to do certain things. Wild animals also learn by copying their parents and practicing. And pets learn through training.[来源:学#科#网]

But instincts and training aren’t the only keys to animals’ behavior. Scientists say animals’ thoughts and feelings also influence their actions. Animals often make choices, plans, and sensible changes. They can help others and solve problems. Some even make and use tools!

If animals could talk, what would they say about their thoughts and feelings? A gorilla (大猩猩) born in captivity (关在笼子里) has helped answer that question. Koko, a gorilla, was taught to use sign language. She has learned hundreds of words!

Koko once had a pet cat she named All Ball. “Koko love Ball,” she signed. “Soft good cat.” One time, she blamed the cat for biting her by signing “You bad dirty toilet!” When her pet died, Koko cried. “Sad for sleeping cat,” she signed.

Koko calls herself “fine animal gorilla”. She uses sign language to argue, joke, and ask and answer questions.

“Most animals can’t use words to tell us their thoughts,” says Dr. Jonathan Balcombe. “But Koko shows us that animals have their own ideas and feelings.” Dr. Balcombe is a scientist at the Humane Society of the United States. He says there’s even more to discover about animals through field studies. In field studies, people watch animals in their natural environment.

“Scientists who study animals’ natural behaviors learn how animals live and think,” Balcombe says. “That knowledge can help others respect every animal who shares the planet with us.”

1.The underlined word “instincts” in Paragraph 1 probably refers to the ability that ________.

A. animals copy their parents                      B. animals learn by practicing

C. animals are born with                            D. animals learn through training

2.The example of Koko shows that ________.

A. an animal likes to have its own pet    B. an animal can learn to speak through training

C. an animal has the natural ability to speak   D. an animal can speak its mind

3.According to Balcombe, learning how animals live and think can ________.

A. help people care for animals                   B. teach animals to use words

C. train animals to use tools                        D. train animals to be cleverer

4.What might be the best title for the passage?

A. Raising animals as pets                          B. Understanding animals

C. Training animals to speak                       D. Protecting animals from danger