Children who spend more time outdoors may have a lower risk of becoming nearsighted, new research suggests.
In the study, researchers looked at about 1,900 schoolchildren. The scientists found that the kids who had been instructed to spend more time outdoors over three years were 23 percent less likely to develop nearsightedness during this time than those who had not been instructed to spend more time outdoors. Moreover, among the kids who did become nearsighted during the study, the degree to which their eyesight worsened was slightly smaller among those who spent more time outdoors.
The researchers selected six schools and required the children, whose average age was 7 at the start of the study, to attend one additional 60-minute class of outdoor activities during each school day for three years. The parents of these children were also encouraged to engage their children in outdoor activities after school, especially during weekends and holidays. The other half of the children, from another six schools, continued their usual activity patterns. After three years, 30.4 percent of the kids in the intervention(干预) group had become nearsighted, compared with 38.5 percent of the kids in the other group.
It is not clear exactly why spending more time outside would benefit children’s eyesight, the researchers said. However, some research has suggested that the higher levels of light intensity found outdoors may increase the release of the chemical dopamine(多巴胺) of the eye. In turn, dopamine is known to restrain（抑制） the type of growth in the eye that is associated with nearsightedness.
Based on the new results, the researchers recommend that children spend more time outdoors because of the potential benefits to their eyesight. However, it’s important to protect kids’ skin and eyes from UV light, which can be damaging.
1.What did the children in the intervention group do during each school day?
A. Attend an extra class of outdoor activities.
B. Continue to do their usual activities.
C. Spend one hour in doing eye exercises.
D. Participate in outdoor activities with parents.
2.What can be inferred about the chemical dopamine?
A. It can contribute to poor sight.
B. It can damage people’s brain.
C. It is beneficial to eyesight.
D. It means low levels of light intensity.
3.What may be discussed in the following paragraph?
A. How to design outdoor activities for kids.
B. How to prevent kids becoming nearsighted.
C. How to protect kids’ skin and eyes from UV light.
D. How to encourage kids to join in outdoor activities.
4.Which can serve as the best title for the passage?
A. The More Time Outdoors, the Better
B. Kids May See Better if They Play Outside
C. It’s Time to Engage Kids in Outdoor Activities
D. Researchers Found a Cure for Nearsightedness
阳光试卷单元测试卷系列答案科目：高中英语 来源：山西省2016-2017学年高一（普通班）下学期期末考试英语试卷 题型：完形填空
Alice had an argument with her best friend, Judy last Sunday. She thought.__________ was really difficult and wanted to copy Judy’s homework. But she refused. After that, they didn’t talk to each other for a few days. Alice didn’t know.__________to face her maths problem and she wondered if she could get on well with her friend again.
Yesterday afternoon, she saw a cool boy __________the violin happily by the road when she was walking home from school. The violin sounded so nice that she couldn't help stopping to listen to him.__________Alice didn't know what music he was playing, it made her feel better. After he finished the music，Alice walked over to him and said, “Thank you __________ your beautiful music. It gets me out of the really bad mood(心情)，then she took out some __________and gave it to him. To her surprise, the boy asked him to take the money back. He explained that he wasn’t making money by playing the violin. He just wanted to __________others. That’s why he played it by the road .What a _______ boy he was ! Then Alice told him about her trouble.
He said，“You should learn to smile even if you are in difficulty. Listening to music is helpful. So why not listen to music as __________as possible ? Never lose heart! Believe in your friend! She has her own reason. And believe in __________! Everything will go well!”
Hearing these words, Alice went home with a smile. She believed she could make it.
1.A. Chinese B. Maths C. Science
2.A. why B. how C. when
3.A. carrying B. selling C. playing
4.A. Because B. When C. Though
5.A. for B. with C. from
6.A. music B. money C. food
7.A. have B. leave C. help
8.A. safe B. rich C. kind
9.A. often B. loudly C. soon
10.A. myself B. herself C. yourself
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科目：高中英语 来源：黑龙江省伊春市2016-2017学年高一下学期期末考试英语试卷 题型：完形填空
A well dressed man went into a jewelry（珠宝） shop one day. He ______ that he wished to buy a pearl (珍珠) for his wife's birthday. The ______ didn't matter, for he was rich.
After examining a number of beautiful and ______ pearls, he chose an unusual black one. It would cost ______. He paid, took the black and left.
A few days later, the man ______ and said that his wife liked the pearl ______ much that she wanted another one just like this. It ______ be exactly the same size and quality（质量）______ she wanted to have a ______ of earrings(耳环). The jeweler seemed ______. Then the man suggested that the jeweler advertise in the newspaper to offer $ 25,000 ______ such a pearl. So the jeweler did.
Many people came to him to sell their pearls but nobody ______ a pearl which was the right size and quality. Just when the jeweler had given up, a little old lady came into his ______. She took out such a ______ pearl from her pocket.
"I don't want to ______ my pearl," she said sadly, "It was given to me by my mother, who had received it from her ______ mother. But I really need the ______."
The jeweler was very ______ and quickly paid for the pearl. Then he telephoned the ______ to tell him the good news. ______, the man could never be found again.
1.A. knew B. cried C. explained D. suggested
2.A. colour B. price C. design D. quality
3.A. expensive B. cheap C. quick D. delicious
4.A. 5,000 dollars B. 5,000 francs C. 5,000 pounds D. 5,000 yuan
5.A. arrived B. went C. came D. returned
6.A. very B. such C. so D. too
7.A. could B. might C. would D. must
8.A. because B. or C. while D. though
9.A. lot B. pair C. number D. box
10.A. useless B. careless C. helpless D. homeless
11.A. of B. for C. with D. in
12.A. bought B. lost C. had D. wanted
13.A. house B. room C. office D. shop
14.A. black B. white C. red D. yellow
15.A. buy B. sell C. miss D. refuse
16.A. true B. poor C. old D. own
17.A. money B. price C. colour D. quality
18.A. sad B. glad C. sorry D. surprised
19.A. friend B. old lady C. rich man D. rich woman
20.A. Although B. Therefore C. Otherwise D. However
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科目：高中英语 来源：甘肃省2016-2017学年高一下学期期末考试英语试卷 题型：单词拼写
1.The foreigners came to China in order to learn Chinese a________（农业的）skills.
2.Mexico gained its i________（独立）from Spain in 1821.
3.The new building destroy the b_______（美丽）of the countryside.
4.The students must a________（道歉）to their teacher for being late.
5.My father does not have much b_______（信任）in doctors of traditional Chinese medicine.
6.The young girl is an e_______（精力充沛的）tennis player.
7.The party was in c________（庆祝）of Mother?s silver wedding.
8.Rocks may hold some information about the o_______（起源）of the life on Earth.
9.He has f_______（原谅）the wrongs I have done to him.
10.Her eyes were full of s_______（悲伤）at the news of the Ya?an earthquake.
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科目：高中英语 来源：河南省商丘市2016-2017学年高二下学期期末考试英语试卷 题型：书面表达
假如你是李华。你的英国朋友Bill想在中国给他的父亲买一个特别的生日礼物，来邮件向你咨询在茶叶、小米移动电源(MI Power Bank)和丝绸衬衫这三样东西中应该选哪一个更好。请你给他回复邮件，从这三样东西里选择一个推荐给Bill并说明你的理由。
注意：1.词数100左右；
2.可以适当增加细节，以使行文连贯；
Dear Bill,
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Sincerely,
Li Hua
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科目：高中英语 来源：青海省西宁市2016-2017学年高一下学期期末考试英语试卷 题型：短文填空
(共10小题；每小题0.5分，满分5分)
On keeping a Diary in English
Keeping a diary in English is one of the effective ways 1. (improve) our English writing ability. Compared with other forms of writing, it is 2. (short) and takes less time. It can help us to develop the habit of thinking in English. 3. we keep practicing, gradually we’ll learn 4. to express ourselves in English. In keeping a diary in English, we certainly run up against many 5. (difficult). In the first place, it often happens that we have trouble 6. (find) proper words and phrases to give expression to our mind. Secondly, there are many idiomatic ways of saying things in Chinese. And 7. is extremely hard for us to put them into English properly.
As far as I 8. (concern), my suggestion is that we should always have a notebook and a Chinese-English dictionary within easy reach. We can also turn to our English teacher 9. help, if necessary. In short, I believe that it is of great use to keep a diary in English for 10. development of our writing skills.
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科目：高中英语 来源：安徽省蚌埠市2016-2017学年高二下学期期中考试英语试卷 题型：书面表达
本月初，你们班开展了一次以"Less Stress, Better Life"为主题的英语演讲比赛,请你准备发言稿,谈谈你的一些缓解压力的好办法,与同学分享,内容包括:
●同学们中普遍存在的压力：学习很努力，成绩不理想；作业太多，没时间休息.
●我的压力：成绩好，但与同学相处有困难；与父母缺乏沟通。
●缓解压力的方法：至少两项。 注意： 1. 词数120左右；
____________________________________________________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
_________________________________________________________________
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科目：高中英语 来源：湖北省天门、仙桃、潜江三市2016-2017学年高二下学期期末考试英语试卷 题型：阅读理解
Anyone who has ever played the game of Tetris (俄罗斯方块) knows the game’s surreal ability to spill into real life. After you shut off the game, you still see those Tetris blocks falling in your mind. You're grocery shopping and find yourself thinking about rearranging items on grocery shelves. Your mind continues to play the game, even when you're physically not.
Robert Stickgold, a Harvard professor, noticed something similar after a day hiking a mountain. That night, he dreamt he was still going through the motions of mountain hiking. Curious about this, he tried something: he got a group of college students of various skill levels to play Tetris and let them sleep in the Harvard sleep lab.
Over 60% of the students, including those who suffered from amnesia (健忘症), reported dreams of images of Tetris pieces falling, rotating (旋转), and fitting together. Interestingly, half the Tetris expert students reported such Tetris dreams, while 75% of the beginners did.
A study found that playing Tetris can grow your brain and make it more efficient. Adolescent girls played the game for an average of 1.5 hours a week over three months. The cerebral cortex (大脑皮层) of the girls grew thicker, while brain activity in other areas decreased. Richard Haier, who had found that there was a "Tetris learning effect", in which the brain consumed less energy as mastery of the game rose, concluded, "The brain is learning which areas not to use."
Haier's study showed that as the girls practiced playing the game, nerve cells made connections, communicating through synapses (a synapse is a connection between two nerve cells). When you learn something, you change those connections. Every time you reactivate(激活) a circuit, synaptic efficiency increases, and connections become more durable and easier to reactivate. Stickgold says sleep plays a role in this memory process.
So to sum up, whenever you do specific tasks over and over again, they take up less of your brain power over time. And that’s pretty amazing.
1.What does the underlined part ‘surreal ability’ in the first paragraph mean?
A. The game can help people arrange things in life.
B. The game can be applied to many aspects of life.
C. There are great similarities between the game and things in life.
D. The mind continues to play the game when we are doing other things.
2.What can we learn from Stickgold’s study?
A. More than half of the students dreamed of images of Tetris.
B. Students having bad memories didn’t dream of the game.
C. The Tetris expert students were more likely to dream of the game than the beginners.
D. More than half of the Tetris expert students didn’t dream of the game.
3.Playing Tetris for a long time can help ________.
①grow one’s brain
②one’s brain function efficiently
③arrange things tidily in life
④improve the adaptability of one’s brain
A. ①②③ B. ①②④
C. ②③④ D. ①③④
4.The purpose of the passage is to ________.
A. encourage people to play Tetris
B. warn people to focus while doing things
C. warn people not to play games before sleep
D. tell people they will improve at something if they keep doing it
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科目：高中英语 来源：内蒙古包头市2016-2017学年高一下学期期末考试英语试卷 题型：完形填空
I will have a holiday next week and I can’t decide what to do. I have a lot of work to do ___________ and this would be a good chance ___________． But I don’t like ___________ the holiday in such a way．I can work at home all the rest of the year．
Last year I went ___________ to the mountains. ___________ there was beautiful， but it is too cold this time of a year. And it’s really___________ far to go for a short holiday. I decide ___________ this isn’t a good time to___________the mountains．But I___________to go somewhere else．Perhaps this would be a good chance to go to the beach（海滨）．I like to go for walks___________the seashore ___________the warm sunshine and watch the water． It’s only eight miles away and I could get there ___________about two hours． After thinking it___________，I am sure that this is a ___________time for the seashore than___________ .
Oh， here is a ___________ from Jim． He ___________ he is going to his house in the mountains for the___________，and he___________ me to go with him．___________ giving it some more thought， I wrote back to Jim and thanked him for that．
1.A. at home B. at house C. in school D. in factory
2.A. do it B. doing that C. to do it D. with that
3.A. to take B. to spend C. having D. asking
4.A. the north B. for north C. north D. to north
5.A. Nothing B. Everything C. Somebody D. Anything
6.A. very B. enough C. rather D. too
7.A. that B. what C. whether D. when
8.A. go B. go to C. go for D. leave
9.A. want B. wanted C. shall want D. was wanting
10.A. on B. by C. beside D. along
11.A. on B. during C. in D. under
12.A. in B. for C. with D. after
13.A. about B. of C. over D. on
14.A. good B. fine C. better D. best
15.A. home B. the mountains C. big cities D. country villages
16.A. gift B. call C. letter D. notice
17.A. says B. tells C. speaks D. talks
18.A. weekend B. holiday C. Sunday D. trip
19.A. want B. wish C. hopes D. asks
20.A. When B. With C. Without D. As
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