Sleep is very important. A person who does no...

Sleep is very important. A person who does not sleep dies faster than a person who does not eat. We spend about a third (1/3) of our lives sleeping. That’s about 121 days a year!

How much sleep do we need? We are all different. A baby needs 16 hours of sleep every day. Children 6 to 12 years old need an average (平均) of 10 to 12 hours of sleep. Teenagers need 9 to 10 hours of sleep. An adult needs an average of 7 to 8 hours a night. There are some people who need only 3 hours of sleep. Others need 10 hours of sleep. After the age of 50, the average sleep time goes down to 6.5 hours a night. We need less sleep as we get older.

About one in three Americans has a problem with sleep. Many of these people can’t fall asleep. The name of this problem is insomnia. Some people say, “I didn’t sleep all night.” But that’s not really true. They may sleep lightly and wake up several times. In the morning, they only remember the times they were awake (醒着), so they think they were awake all night.

This is not a new problem. Many famous people in history had insomnia. Some of these people had special ideas to make them sleep. Benjamin Franklin had four beds. He moved from one to another to fall asleep. Mark Twain had a different way. He lay on his side (侧卧) across the end of the bed!

1. If you are thirteen years old, you need at least ______ hours of sleep.

A. 16　　　　　　　 B. 12　　　　　　　　 C. 9　　　　　　　　 D. 7

2. What does the underlined word “insomnia” mean in this passage?

A. Being unable to sleep.　　 B. Good sleep.

C. Slow sleep.　　　　　　　　　　 D. Sleep with many dreams.

3. Which of the following is true according to the passage?

A. We will die soon if we don’t sleep well.

B. The older we get, the less sleep we need.

C. We can’t tell a person’s age from his sleep time.

D. Famous people move from one bed to another to fall asleep.

4.Which would be the best title for this passage?

A. Sleep More!　　　　　　　　　　　　 B. Go to Sleep!

C. Sleep Time　　　　　　　　　　　　　 D. Famous People

九年级英语阅读理解中等难度题查看答案及解析

Enough sleep is very important for health. If you 　　 for your favorite programmes， you will feel sleepy in class.

A. pick up　　　　　　　 B. stay up　　　　 C. get up　　　　　　 D. set up

九年级英语单项填空中等难度题查看答案及解析

Enough sleep is very important for your health. If you ________for your favourite TV programs, you will feel sleepy in class.

A.pick up B.stay up C.set up D.get up

九年级英语单选题简单题查看答案及解析

Not only is sleep necessary for your body, it’s important for your brain, too.______kids between 13 and 20 get about 8 hours a night,______experts agree that some kids need more than others. When your body doesn’t have enough hours to______, you may feel______or crazy, or you may be unable to think clearly. You______have a hard time following directions, or you might have an argument with a friend over______really silly. A school task that’s normally easy may feel______, or you may feel it hard to play your favorite sport or instrument.

One more reason to get enough sleep: If you don’t, you may not grow______. That’s right. Researchers believe too little sleep can______growth and your immune system（免疫系统）, which______you from getting sick.

1.A. Many　　 B. Most　　 C. Some　　 D. Any

2.A. but　　 B. and　　 C. so　　 D. or

3.A. work　　 B. job　　 C. rest　　 D. food

4.A. happy　　 B. excited　　 C. tired　　 D. relaxed

5.A. must　　 B. will　　 C. can　　 D. might

6.A. things　　 B. something　　 C. everything　　 D. somebody

7.A. worried　　 B. surprised　　 C. impossible　　 D. possible

8.A. as well　　 B. too fast　　 C. all along　　 D. by yourself

9.A. change　　 B. realize　　 C. affect　　 D. increase

10.A. helps　　 B. teaches　　 C. tells　　 D. keeps

九年级英语完型填空困难题查看答案及解析

We know that a person who is _______ does not tell lies or cheat people.

A. caring　　 B. honest　　 C. stupid

九年级英语单选题中等难度题查看答案及解析

A person who is __________ does not tell lies or cheat people.

A. careless B. stupid C. honest D. humorous

九年级英语单选题简单题查看答案及解析

A person who is __________ does not tell lies or cheat people.

A.careless　　 B. stupid　　　　 C. honest　　　　 D. humorous

九年级英语单项填空简单题查看答案及解析

Success is very important. But it does not come to our doors so often, so easily. It takes time! It takes efforts! Are you thirsty for success?1.

First: start young! That’s what pop star Shakira did. She first performed in public aged four　 and for nine years, she wrote songs and sang for her friends. For the last 15 years, she has been one of the most successful pop singers in the world.

2. You can try to be confident(自信的).When Steven Spielberg didn’t get into film school, he pretended( 假 装 ) that he had a job at Universal Studios. 3. And he worked there for three months. For nearly 40 years, Spielberg has directed many famous Hollywood films.

It isn’t just confidence. Our third tip is: work very hard. The “10, 000-hour rule of success” says you need to practice for 10,000　 hours.4. Microsoft　 founder　 Bill　 Gates　 is　 a　 good example; for about five years, when he was a teenager, he spent 10,000 hours working on a computer. His hard work gave him a big advantage over other people.

5. At the age of five, Novak Djokovic decided he wanted to be the best tennis player in the world. Djokovic modeled himself on his hero, champion(冠军) Pete Sampras—he tried to be better than Sampras and everyone else. In 2011, Djokovic, aged 24, won three major world championships and became the World Number One.

A. That’s about six hours a day for five years.

B. Still he walked confidently past the guards.

C. If you can’t start young, it doesn’t matter too much.

D. Follow our four secrets of success and you can succeed.

E. Others can also encourage you, so the next tip is: set your goals high

九年级英语补全短文5选5困难题查看答案及解析

Deep sleep is important.　 It helps us keep a good memory. But as we grow older, our sleep and memory become_________. How can older adults maintain(保持) deep sleep and strong memories?

A new study shows that one _______way is to listen to a kind of sound called "pink noise". It is the sound of falling rain, blowing wind and so on. It's called pink noise because it sits_________white noise and red noise on the audio spectrum(音频频谱) .

In the study, scientists _______thirteen adults above 60 years old to spend two nights in a sleep lab. Both nights, the participants (参与者) took a memory test and went to bed wearing headphones.　 The next morning, they were tested again after_________up.

One of the nights,_______was played through the participants' headphones.　 The other night, however, pink noise was played.

Here are the results.　 When participants slept with pink noise on, they had_______periods of deep sleep. They also performed three times better on the memory test the next morning than they_______after sleeping in_________.

However, because the study was very small, scientists still need to do more studies to see how　 ________pink noise is for people's sleep and memory.　 Anyway, it is amazing, isn't it?

1.A.clearer B.darker C.worse D.better

2.A.easy B.cheap C.crazy D.quiet

3.A.opposite B.without C.between D.beyond

4.A.forced B.invited C.reminded D.advised

5.A.looking B.staying C.making D.waking

6.A.anything B.nothing C.everything D.something

7.A.longer B.shorter C.higher D.lower

8.A.are B.did C.were D.do

9.A.fear B.trouble C.order D.silence

10.A.awful B.grateful C.helpful D.careful

九年级英语完型填空困难题查看答案及解析

John is an artist(艺术家) who does not have much money, but he is a very kind man. One day on his way home, he gave his last coins to a beggar(乞丐). When he saw another one, he forgot that he did not have any money. He asked the man to have lunch with him, and the beggar accepted(接受，同意), so they went into a small restaurant and had a good meal.

　After dinner, John found he had no money at all. The beggar had to pay the bill. The artist was so sorry about this, so he said to the beggar, “Come home with me in a taxi , my friend , and I will give you the money for lunch.”

　“Oh, no!” the beggar answered quickly. “I had to pay for your lunch, but I’m not going to pay for you again!”

1.The artist in this story was ______________

A. a cheat（骗子）  B. a rich man  C. a kind man

2.On his way home, John forgot ____________.

A. to bring money with him

B. to buy the ticket

C. to have lunch

3.After the meal, __________________ paid the bill .

A. the artist                   B. the beggar          C. no one

4.Why did the artist ask the beggar to take the taxi home with him ?

A. Because he wanted the beggar to pay for the taxi.

B. Because he could give money back to the beggar..

C. Because he could make friends with the beggar

5.At the end of the story, the beggar __________.

A. would make friends with the artist

B. was thankful to the artist

C. regretted(后悔) having lunch with the artist.

九年级英语阅读理解中等难度题查看答案及解析