题目
题型:不详难度:来源:
People become nearsighted because their eyeballs grow out of shape and light entering their eyes cannot focus correctly. The body can produce a chemical called dopamine (多巴胺) to stop eyeballs from changing shape. And guess what scientists have just discovered? Sunlight can help our bodies produce more dopamine, reported AFP.
According to the study, primary school students in Singapore spend only 30 minutes outdoors every day; in Australia, by contrast, kids spend about three hours a day outside. As a result, fewer children in Australia are nearsighted–only 10 percent, compared with 90 percent in Singapore.
“Children in East Asia basically go to school... go home and stay inside. They study and they watch television,” Ian Morgan of the Australian National University told AFP.
But being a bookworm or a couch potato does not directly harm the eyes, added Morgan. “As long as they get outside, it doesn’t seem to matter how much study they do,” he explained. “There are some kids who study hard and get outside and play hard and they are generally fine. The ones who are at major risk are the ones who study hard and don’t get outside. As a result of massive (巨大的) educational pressures and the construction (构成) of a child’s day, the amount of time they spend outside in bright light is minimized.”
Experts suggest children should stay outside for two to three hours every day. This can include time spent in the playground and walking to and from school.
小题1:Which of the word has the similar meaning as the underlined phrase “nine in ten”?
A.many | B.few | C.some | D.most |
A.Too much reading or gaming. | B.Lack(缺少)of sunlight. |
C.Genetic reasons. | D.Lack of exercise. |
A.Dopamine is a chemical that causes eyeballs to grow out of shape. |
B.Dopamine can stop light entering the eyes from focusing correctly. |
C.Spending time in the sun can make the loss of dopamine in the body. |
D.The more dopamine a person has in their body, the better eyesight he or she has. |
A.Those who like watching TV. |
B.Those who take exercise regularly. |
C.Those who study hard and play hard outdoors. |
D.Those who stay indoors studying all day |
答案
小题1:D
小题2:B
小题3:C
小题4:D
解析
试题解析:本文大意:根据BBC报道在东亚的主要大城市中有十分之九的毕业生是近视眼,专家说书本和视频没有责任,他们没有获得足够的阳光。AFP报道阳光可以帮助我们的身体产生更多的多巴胺,阻止眼球变形。风险高的群体是学习刻苦又不去户外的那部分人。
小题1:细节理解题。根据Which part of the world has the most nearsighted students?世界上哪个国家有最多的近视眼学生?可知选D
小题2:细节理解题。根据East Asian students, they say, aren’t getting enough sunlight.他们说东亚的学生们没有得到充足的阳光,可知选B
小题3:细节理解题。根据 Sunlight can help our bodies produce more dopamine, reported AFP.AFP报道阳光可以帮助我们的身体产生更多的多巴胺,可知选C
小题4:细节理解题。根据The ones who are at major risk are the ones who study hard and don’t get outside.风险高的群体是学习刻苦又不去户外的那部分人,可知选D
核心考点
试题【Which part of the world has the most nearsighted students? Just look around you–】;主要考察你对科普环保类等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20200119/20200119124511-63917.jpg)
April 3, 2014 – Linda Edwards of Las Vegas, Nevada is full of happiness because her long lost cat Spaz has been returned to her – 12 years after he first went missing!
Spaz first went missing in 2002 and Edwards looked for him every day for three months. She searched all around her town and even wrote letters to some newspapers for help and was never able to find him. At the end of the three months, on New Year’s Eve of 2002 her searching stopped.
But someone recently discovered a dirty, thin stray cat (流浪猫) and took him into a West Flamingo Animal Hospital. The people working in the hospital checked the cat and were sure enough that his name was Spaz and he belonged to Edwards!
“An old lady found a kitty on Sunday and brought him here. We scanned (扫描) him for a microchip (微芯片) and we were able to find out his owner. The kitty, whose name is Spaz, has been missing for 12 years!” the animal hospital wrote on their Facebook page early last week.
Microchipping pets is a way to recognize if a stray animal belongs to anyone who could be missing them. Microchipping pets allows animal services to learn if they have a family waiting for them. Microchips are only about the size of a grain of rice and can only be removed by operation.
Edwards is very thankful she had Spaz microchipped and was so excited to get him back!
“I feel like I have a second chance,” she said. “This would have never happened if it weren’t for microchips.”
小题1:The cat got lost ______.
A.three months ago | B.12 years ago |
C.on April 3, 2014 | D.on New Year’s Eve, 2002 |
A.its feeling | B.its hobby | C.its stray life | D.its owner’s name |
A.The microchip | B.Animal hospitals |
C.The newspaper | D.Family members |
Some people think that eating snake meat is good for their health. But these people don’t know that snakes usually eat mice and worms. Therefore, there are many parasites(寄生虫)found inside snakes’ bodies. ( B ) 它们可能对我们的健康有害。 Apart from this, we’re sorry to see that more snakes are being killed by a butcher’s knife. According to the newspaper, Shanghai Star, about 1,000 tons of snakes are eaten by people every year in China. In Shenzhen of Guangdong Province, sometimes as many as 10 tons of snakes are served on dinner tables in a single day. ( C ) If we still turn a blind eye to this, a vicious circle(恶性循环)will be created — if more snakes are eaten by people, the number of snakes will drop, and the number of mice will increase, which will result in a decrease in crop output. This will make more people hungry. Who wants to see such a tragedy?
( D ) Therefore, let’s not eat snakes any more! To protect the snakes is to protect ourselves.
小题1:用 ( A ) 处所给词的正确形式填空。 ________________________
小题2:将 ( B ) 处的句子翻译成英语。
___________________________________________________________________________________
小题3:将 ( C ) 处翻译成汉语。
__________________________________________________________________________________
小题4:改写 ( D ) 处的句子,句意不变。
Therefore, let’s ___________ ____________ eating snakes!
小题5:根据短文内容回答问题:
What will happen if people eat more snakes? ____________________________________________________
小题1:Sam’s grandfather is badly ill in hospital. |
小题2:Tom is very tired of his work. He is under too much pressure.(压力) |
小题3:Alan exercises every day. He is in good health. |
小题4:George’s mother is strict with him. She never lets him go out for fun. |
A.Flying: You want to run from everyday life.(People often feel happy after a dream about flying.) |
B.Green grass: Green grass means you are healthy but brown grass means that you’re not happy. |
C.Losing teeth: You’re afraid of losing someone close to you. |
D.Long hair: You want to be free! |
小题5:What can you do to sleep well according to the passage?
A.Relax before going to bed. | B.Eat cheese. |
C.Watch some terrible movies. | D.Have some food with pepper. |
小题1:How much does a new-born blue whale weigh?
A.About 10 tons | B.As much as a baby elephant |
C.About 80 tons | D.About 3 tons |
A.faster than | B.slower than | C.as fast as | D.as slowly as |
A.Five | B.Six | C.Seven | D.Eight |
Before you answer the questions, if you feel a little nervous, take a few deep breaths to help you relax.
Always read the question carefully and make sure that you understand it. Read it a few times if possible.
Find out how much each question is worth or how many points you need. If it asks to give one answer, only write one.
If there is a difficult question, don’t worry. Go on to the next question and come back to it if you have time later.
Try not to 1eave questions unanswered when you finish the text. Sometimes a guess may get you points.
When you finish, go back and check your answers. You will need to check your writing for spelling mistakes.
小题1:From the passage, we know we can to help ourselves relax if we feel a little nervous.
A.tell ourselves not to be nervous | B.ask the teacher for help |
C.go out for a walk | D.take a few deep breaths |
A.read it fast | B.read it till we finish it |
C.read it a few times if possible | D.read it slowly |
A.hand in at once | B.check spelling mistakes |
C.worry about our points | D.check with classmates |
A.策略 |
B.思维 |
C.途径 |
D.智慧 |
A.Find out how many points we need or how much each question worths. |
B.Try not to leave questions unanswered when we finish the text. |
C.If it asks to give one answer, we"d better write more. |
D.Sometimes we should guess the answers to get points. |
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