As people age, the body changes in all sorts ...

As people age, the body changes in all sorts of predictable ways. Brains can slow. Wounds take longer to recover. And sleep patterns(模式) shift, too. This can come as news to many, says Michael V. Vitiello, a psychologist at the University of Washington who is expert in sleep in aging.

The most noticeable---and often most annoying---changes are how sleep and wake-up times change and sleep gets lighter, often beginning in middle age. Gone are weekend sleep to 11 a.m. and the ability to sleep through a noisy garbage truck down the block.

But not every restless night can be ignored. Studies have found that poor sleep can create a particular threat to older adults---Falls, depression and anxiety, problems with memory, and increased suicide(自杀) risk are among the effects of sleep issues in this population group that researchers have found. But scientists are still unsure why those risk connections exist.

What is clear is the connection between good sleep and psychological well-being in older adults. A 2010 study showed us that connection when it came to sleep quality, but sleep quantity didn't show the same effects. And that, experts say, may be the key to understanding sleep as you age. If you're sleeping less, but don't feel negative effects out of bed, the changes you notice may just be normal age-related.

Over time, Vitiello says, sleep patterns simply change. "A lot of older adults recognize that they don't sleep the same as they did when they were 18, but they can still function and they're OK. And all is well with the universe."

1.What can we learn from the second paragraph?

A. As a person ages, his sleep quality becomes worse.

B. People in old age often sleep late and wake up early.

C. People in old age often sleep to 11 a.m. at weekends.

D. As a person ages, he adapts to the noisy surroundings.

2.What may result in poor psychological health for the elderly?

A. Sleep of low quality. B. A small quantity of sleep.

C. Sleep of high quality. D. A large quantity of sleep.

3.What attitude should we have towards sleep as we become old?

A. Negative. B. Frustrated. C. Scientific. D. Disappointed.

4.What is the main idea of the passage?

A. Sleep pattern and weight. B. Sleep pattern and age.

C. Negative effects of aging. D. Positive effects of sleep.

高一英语阅读理解困难题查看答案及解析

Since people first sent rockets into space in the 1950s, we have been leaving behind all sorts of things. Some of them, like the camera, were lost by astronauts while they did work outside their spaceship. But much of the space junk is made up of little pieces of things that were once bigger objects, until they struck each other and broke apart.

Some things we send into space fall back toward the earth and burn up in the atmosphere. But larger pieces sometimes survive the extreme heat and hit the ground or the ocean at great speeds. So there is always concern that something may fall from the sky and do some harm.

But space junk falling on housetops (屋顶) is not the biggest worry. Scientists are concerned about what happens when an empty rocket strikes another while orbiting (绕轨道飞行) the earth. Two big things become many smaller things. They then hit other things. The pieces get smaller and smaller until they form a cloud of junk that blocks the path of future space vehicles.

So what can be done to clean up the space around our planet? Marco Castronuovo, an Italian researcher, talks about sending a satellite into space that would get very close to some of the larger pieces of space junk. The satellite would connect a small rocket to the useless object. When the rocket explodes, it pushes the junk into a lower and slower orbit, nearer the earth. After a time, the junk burns up in the atmosphere.

Mr. Castronuovo has proposed (提议) using a number of small satellites with robotic arms. One arm would catch the space junk, and another arm would connect the rocket. He imagines that each satellite would jump from one large piece of junk to another. He thinks this method could destroy about ten large objects each year.

Scientists have been concerned about space junk for many years. Right now, the costs of the clean-up have been too great. Mr. Castronuovo says his system could be put in place for a much more reasonable amount of money.

1.Much of the space junk _____.

A．was thrown by the astronauts

B．is from broken spaceship

C．is made up of small pieces of things

D．returns to the earth piece by piece

2.Scientists are most worried that the space junk _____.

A．will stop the future space vehicles

B．will do harm to the atmosphere

C．will fall on the housetops

D．will burn up in space

3.What does Marco Castronuovo think of his system?

A．It can remove space junk completely.

B．It can save a large amount of money.

C．It can create a large amount of space.

D．It can develop robotic technology.

高一英语阅读理解中等难度题查看答案及解析

American is the country on the move. In unheard of numbers, people of all ages are exercising their way to better health. According to the latest figures, 59 percent of American adults exercise regularly—up 12 percent from just two years ago and more than double the figure of 25 years ago. Even non-exercisers believe they would be more attractive and confident if they were more active. It’s hard not to get the message. The advantages of physical fitness are shown on magazine covers, postage stamps, and television ads for everything from beauty soaps to travel books. Exercise as a part of daily life did not catch on until the late 1960s when research by military doctors began to show the good points of doing regular physical exercises. Growing publicity(宣传) for races held in American cities helped develop a strong interest in the ancient sport of running. Although running has leveled off in recent years as Americans have discovered equally helpful and sometimes safer-forms of exercise.

As the popularity of exercise continues to increase, so does scientific evidence (根据) of its health benefit. The key to fitness is exercising the major muscle group strongly enough to almost double the heart rate and keep it doubles for 20 to 30 minutes at a time. Doing such physical exercises three times or more a week will greatly improve physical health in about three months.

1. According to the essay, what was the percentage of American adults doing regular physical exercises two years ago?

A. About 70%.  B. Nearly 60      C. Almost 50%.       D. More than 12%.

2. A growing interest in sports didn’t developed until______________.

A. 25 years ago   B. two years ago    C. the late 1960s    D. now

3.Which of the following if the closest in meaning to underlines phrase “leveled –off”?

A. became very popular                     B. stopped being popular

C. reached its lowest level in popularity        D. stopped increasing in number

4. It can be learnt from the passage that the good points of exercise___________.

A. are to be proved                             B. are to be further studied

C. are supported by scientific evidence  D. are self- evident

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

A. Different Forms of exercise     B. Exercise——The Road to Health

C. Scientific Evidence of Health Benefit   D. Running——A Popular Form of Sport

高一英语阅读理解简单题查看答案及解析

America is the country on the move. In unheard of numbers, people of all ages are exercising their way to better health. According to the latest figures, 59 percent of American adults exercise regularly-up 12 percent from just two years ago and more than double the figure of 25 years ago. Even non-exercisers believe they would be more attractive and confident if they were more active. It’s hard not to get the message. The advantages of physical fitness are shown on magazine covers, postage stamps, and television ads for everything from beauty soaps to travel books. Exercise as a part of daily life did not catch on until the late 1960s when research by military doctors began to show the good points of' doing regular physical exercises. Growing publicity(宣传) for races held in American cities helped develop a strong interest in the ancient sport of running. Although running has leveled off in recent years as Americans have discovered equally helpful and sometimes safer-forms of exercise.

As the popularity of exercise continues to increase, so does scientific evidence(根据) of its health benefits. The key to fitness is exercising the major muscle group strongly enough to almost double the heart rate and keep it doubles for 20 to 30 minutes at a time. Doing such physical exercises three times or more a week will greatly improve physical health in about three months.

1.According to the essay, what was the percentage of American adults doing regular physical exercises two years ago?

A. About 70%　　 B. Nearly 60

C. Almost 50%　　 D. More than 12%

2.A growing interest in sports didn’t developed until　　　 .

A. 25 years ago　　 B. two years ago

C. the late 1960s　　 D. now

3.Which of the following is the closest in meaning to underlined phrase "leveled off"?

A. became very popular　　 B. stopped being popular

C. reached its lowest level in popularity　　 D. stopped increasing in number

4.It can be learnt from the passage that the good points of exercise　　　 .

A. are to be proved　　 B. are to be further studied

C. are supported by scientific evidence　　 D. are self-evident

高一英语阅读理解中等难度题查看答案及解析

Old people need special care in winter, as they are very______ to sudden change of the weather.

A. sensitive            B. painful                            C .attractive                    D. familiar

高一英语单项填空简单题查看答案及解析

Scientists say eating less can slow the aging process of cells in the body. The researchers studied mice, not people.

1. One group was able to eat as much as it wanted. The other animals in the other group are limited to eat. Their diet had 35 percent fewer calories than the first group of mice.

The mice with the diet restrictions(限制) were more energetic and suffered fewer diseases. They were not just living longer, they seemed to stay younger for a longer period of time. When you restrict calories (in mice), there is a direct increase in lifespan - the average age of the animal. 2.

But how? The researchers found that fewer calories slow down a natural mechanism in cells called ribosomes (核糖体). Ribosomes are responsible for making important proteins in the cells. But with fewer calories, they slow down. 3. This, in turn, keeps cells and the entire body functioning well.

Earlier studies have suggested a link between calorie restrictions and slowed aging. 4. Calorie restriction as a way to slow aging has not been tested in humans. But the main finding for people is the importance of taking care of our bodies. 5. And this may help us make better decisions about what we eat.

A. The less we eat, the healthier we are.

B. Researchers studied two groups of mice.

C. This finding is good news if you are a mouse.

D. This gives the cells more time to repair themselves.

E. The findings help to explain how exactly our bodies age.

F. However, this is first to show how the ribosomes can influence aging.

G. Calorie restriction caused real biochemical changes that slowed down the rate of aging.

高一英语七选五中等难度题查看答案及解析

In times of crisis (危机), people can be truly amazing. Age, wealth, race, religion, politics and all the other things that make us who we are as individuals seem to matter a little less, and the fact that we are all humans in this world together comes to matter more.

Seni Felic owns a restaurant in San Francisco called Bistro SF Grill, and he is feeling optimistic despite the crisis caused by COVID-19 “We’re going to pool our resources and people will pull together, and it will have a strong effect on solving any problems,” he told Reader’s Digest. With this in mind, he decided to offer nonprofit lunches and dinners in his restaurant.

“We are inviting all to stop by Bistro SF Grill to take a lunch or dinner box with food prepared in advance. The price is only $5.50 and it covers our expenses. We’d like to give for free, but we can’t afford it. Our idea was: Let’s try to help.” he said.

Despite San Francisco’s “shelter-in-place” order, Felic said they still plan to offer meals. The move deals with three problems in the community: offering various high-quality food to people who may not be able to cook or who can’t afford Whole Foods prices; helping the business continue operating during the crisis; and paying some of the hourly workers who make the food so that they can earn enough money to get through the hard times.

He believes that working together and helping others will be the key to helping all to get through this. “This problem will be controlled, and I just feel optimistic,” he added. “When people come together and cooperate, I think we can overcome almost anything.”

1.What made Seni Felic optimistic during the time of COVID-19?

A.His religious belief. B.His decision to offer meals.

C.People’s working together. D.The government’s order.

2.What can we learn about the restaurant’s move to offer nonprofit meals?

A.People should take a box to pack the food.

B.The meals will be given for free.

C.Only poor people can get the food.

D.It can help its workers survive the crisis.

3.Which of the following best describes Seni Felic?

A.Kind and optimistic. B.Brave and energetic.

C.Caring and humorous. D.Helpful and patient.

高一英语阅读理解中等难度题查看答案及解析

All over the world people swim for fun. Swimming is enjoyed by people of _____ages, from the very young to the very old. There are many places for people to swim in swimming pools. Many schools, hotels and clubs have swimming pools. Some people have pools of______in their yards.

Swimming is one of____forms of exercise. It can____ hearts and bodies strong. It can also help blood circulate(循环). Handicapped people can keep their bodies in better condition by swimming_____they can't enjoy sports.

____ is a good idea for parents to see to it(务必做到) that their children learn to swim____an early age. So their children will_____it for the rest of their lives.

There are many rules for water safety. These rules can help save not only your life_____the life of a friend. First of all, know_____. Many schools____ swimming lessons to children. Adults(成人) can learn to swim at public pools. _____ rule to remember is never to swim ____. Always swim with a friend and know ___　 in the water at all times. It is best to swim ____ in safe places if you are beginners. If every one learned to swim and obeyed the rules for water safety, most drawing(溺水) could be avoided.

1.A. all　　 B. any　　 C. some　　 D. both

2.A. themselves　　 B. their own　　 C. theirs own　　 D. their own’s

3.A. good　　 B. better　　 C. best　　 D. the best

4.A. help　　 B. let　　 C. make　　 D. show

5.A. though　　 B. as　　 C. so　　 D. until

6.A. That　　 B. There　　 C. This　　 D. It

7.A. over　　 B. during　　 C. at　　 D. on

8.A. learn　　 B. enjoy　　 C. stop　　 D. know

9.A. and aim　　 B. still　　 C. and yet　　 D. but also

10.A. how to swim　　 B. why swimming　　 C. how swimming　　 D. why to swim

11.A. have　　 B. take　　 C. give　　 D. make

12.A. The other one　　 B. Other　　 C. An other　　 D. Another

13.A. alone　　 B. yourself　　 C. lonely　　 D. together

14.A. who what person is　　 B. where that person is　　 C. who is that person　　 D. where is that person

15.A. nearly　　 B. hardly　　 C. almost　　 D. only

高一英语完形填空中等难度题查看答案及解析

With the rapid progress of technology, the English language is changing fast. All the people have to face a choice: either ignore the development of the language and spend the rest of our lives wishing Shakespeare were alive, or keep pace with the Internet age, welcoming the new English which someone has once called Weblish. “you can’t avoid it for the simple reason that wherever a new language comes along, it surely impacts (影响) the language as a whole,” says Dr David Crystal, a famous language professor at the University of Wales.

However, there is great trouble with keeping up with the new English because there are so many new words and the old ones no longer mean what we thought they did. In the past if someone said they didn’t have “Windows”, you would have to suppose they lived in a cave without windows. But now, it is probably because they use a Mac, which is a computer. Spam, which once meant a not-so-good-kind of canned meat, now stands for unwanted “junk (垃圾)” email.

Spelling is changing too. Weblish loves to see nouns happily become verbs ( for example, “Please bookmark this site”), and verbs become nouns (“Send me the download”).Verbs and prepositions are regularly thrown together to become new nouns or adjectives(for example, dial-up, logon, print-out, pull-down, upload), while others are created from a simple pairing of nouns: cyberspace, ethernet, Internet, hyperlink, metatag and netspeak.

1. We can infer from the first paragraph that _____ .

A．English has completely become Weblish

B．some people wish Shakespeare were still alive

C．people may have different attitudes towards Weblish

D．people who know English have to learn a new language

2. What is the main idea of the second paragraph?

A．Now English has many new words.

B．English words have changed a lot.

C．Old English words are no longer used at all.

D．People have difficulty in understanding some new words related to computers and the Internet.

3. The best title for this passage would be “_____”.

A．Technology and English

B．Keep Up with the Latest Weblish

C．Don’t Forget English

D．The Advantage and Disadvantages of Weblish

高一英语阅读理解中等难度题查看答案及解析

In today’s Internet age, online games can be a change from the pressure of school and work. However, they can also cause problems and unhealthy addictions. This is most clearly seen in the example of South Korea. This country has the world’s highest percentage of high – speed Internet services. It has also a high number of game players who are addicted to online games.

In 2004, a young man died after playing online games almost nonstop for 86 hours. A 12 – year – old boy stole $ 16,000 from his father to continue online games which he could not get away from. Such problems are spreading to other parts of Asia as well. In 2005, it was reported that about 80 percent of China’s 13.8 million online game players were under 25. And many of these were said to be addicted. Such numbers point toward a growing problem among Chinese youth.

Dr. Sue – Huei Chen, a psychologist , discovered some signs of at – risk people. Such people often go online to escape from their problems. And they usually have no friendship or good social skills. They feel the need to spend more and more time online, so they may be absent from school or family. And they become upset if anyone tries to limit their online game playing.

1.The passage is mainly about ________.

2.In the passage, the writer tells us a fact that ________.

3.After reading the passage, we know that in China ________.

4.According to the passage, ________are more likely to become addicted to online games.

高一英语阅读理解简单题查看答案及解析