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German scientist think that your brain keeps working while you're asleep.To show that they were right,they gave two groups of students a problem to work out Group One went to sleep,and Group Two stayed awake. (1)   

    At the same time,from a recent study many children have missed out on 4.500 hours of sleep by the time they are seven years old.According to the Ministry of Education,primary school students should get at least 10 hours of sleep a night. (2)   The answer is nine.If they don't get enough sleep at night,they will face more challenging situations in schoolwork.

Schools are taking action to make sure the students can get enough sleep.

(3)   Three reasons are mentioned for the problem.Firstly they spend hours n scrolling(滚动),such as Douyin and Wechat Hours of watching the mobile phones can be harmful to their eyes and cause students to sleep less. (4)  They may work overtime to get the job finished and they can't watch over he kids.Lastly,drinks like tea or coffee can also keep them excited and awake.

    (5)  For example,they should avoid using mobile phones too much,and drink something like milk before going to bed.

    Only if schools,families and students join hands together,can students get enough sleep and be at their best in schoolwork.

阅读短文,把 A﹣E五个句子填入文中空缺处,使短文内容完整。

A.But researchers say many students still sleep less.

B.In fact,students themselves should also take sleep seriously.

C.Secondly,busy parents may not remind them to go to bed at the proper time.

D.Then how many hours of sleep should junior high school students get a night?

E.The result showed the students who slept worked out the answer more quickly.

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相关试题

A film star’s day
--Good morning, Miss Winters. What are you going to do today?
--I am going to swim for half an hour first, and then I’m going to have breakfast at ten o’clock with my producer Frank Zinc. Then the photographers will take pictures for a newspaper. In the afternoon I’m going to do some shopping.(1)I’m going to try on some new clothes for my next movie. (2) five o’clock I’m going to sleep for one (2) two hours, because at seven o’clock I’m going to have supper with a good friend. We are going dancing at the King Club…but I hope you aren’t going to write that in your newspaper. We are only good friends. And then I’m going to bed at about eleven o’clock.
--Ok, thank you.
将(1)句译成汉语。
将(2)句空白处填上恰当的词使句意完整、上下文通顺:____________ _________
回答问题。What is Miss Winters going to do at seven o’clock?
在文中找出与but I hope you won’t tell others about that in your newspaper.
意思相近的句子
写出最能表达该短文主题的句子或短语。

I think everyone has a dream. My dream is to have a large home. I don’t like living in the city. So the home is in the country, but not far from the city of Nanjing. On the ground floor, there is a training room and a swimming poor. I can play table tennis, basketball and badminton there. And I can also swim there. After training, I can have a shower and a bath with my friends. So there must be a bathroom. On the second floor, there is a computer room and a reading- room. And there is a bedroom. Then I can go to bed there.
Now, what’s on the first floor? We will have meals. So there is a kitchen and a dining-room there. And we can watch TV, play cards, listen to the music and so on. Welcome to my home to be the guests.
“T” or “F”.
My dream home is a flat with four floors.
The home is near the capital of Jiangsu province
The bedroom is on the first floor.
We can often have meals on the second floor.
I’m friendly to my friends.

What do you usually do in your free time? Play sports? Watch TV? How about reading books? You must know the Chinese saying: "Read thousands of books; travel thousands of miles” Books are important in our life. Reading books is good for us. It can help us know and understand the world better. It can help us get a lot of knowledge(知识). It brings us a new and different world that we have never been before. Almost all the great men like reading, like Chairman Mao and Madame Curie.
In a word, books are treasure(财宝) and we must love them. But before you read, remember to choose a good one. Ask your parents or teachers about what books to read. Be sure you are interested in them. There are many different kinds of books: I like biography(传记) because I can learn something from the characters.
What about you? Young friends, please love books and read them, They are very helpful to you.
Which of the following is TRUE?.

A.Madame Curie doesn't like reading at all.
B.We shouldn't ask teachers about what books to read.
C.Reading books can give us little knowledge.
D.We have to choose a good book before we start to read.

What does the underlined part "Read thousands of books; travel thousands of miles." mean in Chinese?

A.读书百遍,其义自见
B.读万卷书,行万里路
C.滚石不生苔
D.读数千本书就能行数千里路

Reading books can help people_________.

A.get more sleep
B.know little about themselves
C.get money from others
D.understand the world better

What kind of books does the writer like?

A.Story-books. B.Comic books.
C.Biography. D.Novels

Which of the following is NOT true?

A.Only reading books can make people succeed.
B.Chairman Mao likes reading very much.
C.Books are helpful to human.
D.Young people should read more books.

Bob was happy. He was at a new school, and the other students were friendly. “Hi, Bob!” They said. But some students said, “Hi, Peter!” Bob didn’t understand. He asked another student, “ Why do some students call me Peter?”
“Oh, that is easy to answer,” the student said. “Peter was a student here last year. Now, he goes to a different school. You like Peter. Some students think that you are Peter.”
Bob wanted to meet Peter. He got Peter’s address(地址) from a student and went to Peter’s house. Peter opened the door. Bob couldn’t believe his eyes. He looked really like Peter! Bob and Peter had the same color eyes and the same smile. They had the same black hair. They also had the same birthday.
Bob and Peter found out that they were twin brothers. They both were adopted(领养) by two different families. Soon after the boys born, one family adopted Bob, and another family adopted Peter. Bob’s family never knew about Peter, and Peter’s family never knew about Bob, either.
Bob didn’t understand why __________.

A.he was happy
B.he went to a new school
C.some students called him Peter
D.he was named Bob

Another student told Bob that __________.

A.students liked Peter
B.he looked liked Peter
C.Peter was a good student in that school
D.Peter liked his studies very much

How did Bob feel when he saw Peter?

A.He felt very sad.
B.He was greatly surprised.
C.He felt that Peter was very funny.
D.He was very angry because they looked the same.

What is not mentioned(提及) about Peter and Bob?

A.Their eyes had the same color.
B.They had on the same clothes
C.They had the same black hair.
D.They were born on the same day.

Bob and Peter _____________.

A.lived in different countries
B.lived in the same family
C.lived in different families
D.lived with the same parents

Americans love sports . But this hobby sometimes has serious results—at least to the players. For example, when people play tennis, sometimes they hurt their elbow(肘部). Also it is easy to hurt a knee in a football game. These injuries(毁伤)happen while the player is having fun, but they still hurt.
A few months ago, Kathleen Simmons, who loves playing volleyball, hurt her knee in a volleyball game. Her doctor told her that she needed a very difficult operation(手术)or she might not be able to play again. She felt very sad
Then Simmons learned about “video operation”. With the help of this new science in medicine, doctors can now repair many injuries.
For this operation, her doctor didn’t have to open her knee. Instead he put a very small camera lens(镜头)inside her knee. The lens sent back pictures, which appeared on a television screen. As he worked, he could see the inside of her knee on the TV. With the help of the large pictures on the screen, the doctor knew exactly what to do when he was making the repairs.
Simmons started walking five days after her operation. “My knee hurt a lot the first few days,” she said. “But I felt better very quickly.” Now, six months after her operation, Simmons can do everything she did before her injury. “It feels like a new knee,” she said. “I can even play volleyball again.”
Do Americans love sports?
What sport is Simmons interested in?
What did the doctor put inside Simmons’ knee?
What problem may people have when they play sports?
Can Simmons do everything like before?

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