One of the easiest and cheapest ways to help your health is just to sleep eight hours or more every night, but more and more people in the world are not sleeping enough. According to the World Health Organization, over half the people in the world may be _ . The result of this is not just a lot of tired people; in the United States alone, sleepy drivers cause at least 100,000 car accidents, and 1,500 deaths a year. Problems with sleep can also cause mental problems, as well as medical problems such as high blood pressure and heart problems. American culture values work and often doesn't value sleep. In fact, people who sleep a lot are often called "lazy". Many famous men say proudly, "I only have time to sleep four or five hours a night." Students, especially college students, often sleep only a few hours a night. They often say, "I'm used to sleeping only a little." But according to experts, sleep is like money. If you sleep only five hours a day, you don't "get used to it", but instead, build up a "sleep deficit ". "It's like a credit card (a card used to buy things or services)," says Dr. James Maas, "You are only borrowing time. You always have to pay it back." The more hours you don't sleep, the more hours you should sleep to "pay back" the hours on your "sleep credit card". For example, if you sleep four hours on Monday and then sleep eight hours on Tuesday, on Wednesday you will still have a "sleep deficit" of four hours. This deficit can continue for months or even years. People with a "sleep deficit" are sleep-deprived. Driving and making decisions can be dangerous for these people. Another research shows people should sleep nine or ten hours every night. More than half the people in the world may be running a "sleep deficit". You didn't do your homework last night? Maybe you can tell your teacher that you were working hard on your sleep deficit. "Don't think you will be doing less work because you sleep during the day. That's a foolish idea which is held by people who have no imagination. You... From the passage we know sleep-deprived people _ . A) are easily tired B) most likely cause traffic accidents C) can have both mental and medical problems D) have all the above problems
D
How old is "old"? The answer has changed over the years.Two hundred years ago, you were old at 35.At the beginning of the 20th century, the average life span was 45.In 1950,70-year-olds were really old.Today, a healthy 70-year-old person is still thought young. So, how old is old? The answer is one you've heard many times, from all kinds of people."You are as old(or young) as you feel." Your age simply tells you how many years you have lived.Your body tells you how well you've lived. "Nobody grows old by living a number of years," wrote a writer."People grow old when they don't have their ideals ." People should not have the wrong ideals about aging.Sometimes, old minds can be as bright as young minds.Alice Brophy once said, "It makes me happy who people say.You look young for your age." What does that mean? You know you can die old at 30 (30) and live young at 80. Th e meaning of the word "aging" is _ . A) growing old B) staying young C) keeping healthy D) feeling unhappy
A
Q: Today is our Open Day. Our parents come and see our school on this day. Our school is very big and beautiful.There are five buildings in our school. Look! The office building is on your right. Our teachers work in it. Behind the building, there are two classroom buildings and a school library. In the library there are all kinds of books. Our big playground is on the left of these buildings with lots of trees around it. Every day, many students play football, basketball and tennis. We have a good time on the playground after school. We also have a school hall behind the playground next to the library. We meet our parents and have parties in the school hall. Today, after school, we have a welcome party for our parents. I think our parents will like our school, too. _ come to see our school today. A) Our parents B) Our cousins C) Our brothers D) Our friends
A: A
Question: The story is about a young girl named Yang Liu. She was ill, because she couldn't sleep well. Every night, she felt very tired, but she stayed awake . Soon Yang Liu went to see a doctor, "I just can't get to sleep at night. What should I do?""Count from 1 to 1,000. By the time you reach 1,000, you can be asleep . I hope you feel better soon," said the doctor. The next day Yang Liu came back to the doctor's office. She still looked tired. "Well," said the doctor, "how are you feeling today?" "I tried counting one, two, three... up to one thousand. But when I reached seven hundred and eighty-nine, I began to feel sleepy . I had to get up and drink some coffee so that I could go on counting up to one thousand. After I finished counting all the numbers I still couldn't fall asleep," she said. How did Yang Liu feel the next day? A) Tired. B) Happy. C) Angry. D) Excited.
Answer: A
Q: We use our smart phones to carry out many tasks every day. Many of us have become so _ on them. However, it is bad for our eyes and health to use too much phone. A study shows that smart phone owners usually start to use their phones early in the morning. They check persona1 emails and Wechat. And before they get out of bed, many people often check the weather, read the news, and send a message or two to friends. After getting up, they often take photos of food, themselves, and even whatever they can see with their phones. They share their photos with their friends. The research finds that users pick up their phones more than l,500 times to do different tasks in an average week. And the smart phone users are on their phone for three hours and sixteen minutes a day. That is to say, people use their phones for almost one full day each week. Using phones will take much time and it's also bad for our health. Many people stay up late to play phones, And mobile phones will influence our sleep. Without using the phones, many people will feel sad. Many owners also find they use their phones without realizing they're doing so. How do you think people use their phones too much? Where can we probably read this text? A) In a newspaper B) In a travel magazine. C) In a story book. D) In a history book.
A: A