Eyesight plays a very important role in our daily life. Every waking moment, the eyes are working to see the world around us. Over forty percent of Americans worry about losing eyesight, but it’s easy to include steps into our daily life to ensure healthy eyes. Here are five suggestions for a lifetime of healthy eyesight:

﹡Schedule yearly exams. 1. Experts advise parents to bring babies 6 to 12 months of age to the doctor for a careful check. The good news is that millions of children now can have yearly eye exams and following treatment, including eyeglasses.

﹡Protect against UV rays (紫外線). Long-term stay in the sun creates risk to your eyes. No matter what the season is, it’s extremely important to wear sunglasses. 2.

﹡Give your eyes a break. Two-thirds of Americans spend up to seven hours a day using computers or other digital products.  3.  Experts recommend that people practice the 20/20/20 rule: every 20 minutes, take a 20-second break and look at something 20 feet away.

﹡4.  As part of a healthy diet, eat more fruits and vegetables each day. Vitamins C and E help protect eyesight and promote eye health.

﹡Practice safe wear and care of contact lenses (隱形眼鏡). Many Americans use contact lenses to improve their eyesight. While some follow the medical guidance for wearing contact lenses, many are breaking the rules and putting their eyesight at risk.  5. Otherwise, you may have problems such as red eyes, pain in the eyes, or a more serious condition.

A. Eat your greens.

B. Eye care should begin early in life.

C. They can properly protect your eyes.

D. Stay in good shape by taking more vitamins.

E. Parents usually don’t care about their own eyesight.

F. Always follow the doctor’s advice for appropriate wear.

G. This frequent eye activity increases the risk for eye tiredness.

練習(xí)冊系列答案
相關(guān)習(xí)題

科目：高中英語 來源：廣東省廣州市2017屆高三高考沖刺題（二）英語試卷 題型：七選五

You wait in a long queue in the supermarket, but when it’s finally your turn to pay, you can’t find enough money in your purse. 1. While you are bending down to look for them, the people behind you are getting angry. The cashier is pounding her fingers impatiently on the counter.

2. But the good news is: scientists have thought of a way to make queues shorter and paying for things easier. They have invented an eye scanner. In the future, when you pay for food at the supermarket, an eye scanner will take a picture of your eyes and a computer will identify you. 3.

Students at Venerable Bede School, England, have already got an eye scanner in their cafeteria. After the students choose the food they want, the scanner looks for their information and sends a list of the food to their parents. 4. Also, parents pay for the meals at the end of the week, so the students don’t have to take money to school and wait in long queues to pay for their lunch.

If all shops had eye scanners, shopping would be easier. 5. So, it seems that it will be a while before most of us get our eyes scanned at the cashier.

A. Sometimes shopping can be unpleasant.

B. You take out your credit cards, but they fall on the floor.

C. If students aren’t eating a healthy diet, their parents will know.

D. Stores are trying several new ways to get shoppers to spend more.

E. Parents are urging the government to introduce better security safeguards.

F. However, eye scanners are very expensive and many shops can’t afford them.

G. As soon as the machine finds your information, it will send it to your bank which pays for your food automatically.

查看答案和解析>>

科目：高中英語 來源：福建省三明市2016-2017學(xué)年高二下學(xué)期第二次月考英語試卷 題型：閱讀理解

Sometimes called Amazonia, the rainforest of the Amazon River basin is the largest in the world. It stretches (延伸) across more than half of Brazil and parts of seven other South American countries (and French Guiana). With a land area of 2.7 million square miles, the Amazon rainforest is almost two thirds the size of the US.

Rainforests are important to the health of the entire planet. Often called "the lungs of the planet", the Amazon rainforest, with its rich plant life, stores carbon dioxide while giving out the oxygen we need to survive.

At one time, rainforests covered 14 percent of Earth’s surface. Deforestation has reduced that figure to 6 percent today. Much of the loss has been in the Amazon.

Fortunately, over the years, Brazil has also become a world leader in rainforest preservation. A law called the Forest Code, originally passed in 1965, requires the Amazon’s farmers to protect 80 percent of their land from farming. And democratic governments beginning in the early 1990s began to enforce it seriously.

Efforts to save the Amazon increased under President Luiz Inacio Lula da Silva (2002—2011). Brazil set aside about 150 million acres of the rainforest, an area about the size of France, for protection. Deforestation fell by 74 percent between 2004 and 2009.

Other countries of the Amazon have also done their parts. This year, Peru created a forest reserve about the size of California’s Yosemite National Park.

1.What is the size of the Amazon rainforest?

A. About the size of France.

B. Nearly half the size of Brazil.

C. Over half the size of the US.

D. About the size of seven South American countries.

2.How much of the rainforest has been lost due to deforestation according to Paragraph 3?

A. 6%. B. Approximately 8%.

C. 14%. D. More than 50%.

3.Which country contributes most to the preservation of the Amazon rainforest?

A. Peru. B. Brazil.

C. The US. D. French Guiana.

4.What does the author feel about the situation of the Amazon?

A. Optimistic. B. Moved.

C. Worried. D. Uncertain.

查看答案和解析>>

科目：高中英語 來源：陜西省2016-2017學(xué)年高一（重點班）下學(xué)期第三學(xué)月考英語試卷 題型：單項填空

All these donations must be delivered immediately________in time for Christmas.

A. so as to have received B. in order to be received

C. so as to receive D. in order to be receiving

查看答案和解析>>

科目：高中英語 來源：陜西省2016-2017學(xué)年高一（重點班）下學(xué)期第三學(xué)月考英語試卷 題型：單項填空

I________through that bitter period without your generous help.

A. couldn't have gone B. didn't go

C. wouldn't go D. hadn't gone

查看答案和解析>>

科目：高中英語 來源：遼寧省六校協(xié)作體2016-2017學(xué)年高二下學(xué)期期初英語試卷 題型：書面表達

假設(shè)你是王明，近日，英語協(xié)會與校學(xué)生會聯(lián)合發(fā)起了“強健身體，從我做起”的活動，作為學(xué)生會主席，請你就此寫一封英文倡議書發(fā)表在校報上，號召大家鍛煉身體，保持健康。

____________________________________________________________________________________________

____________________________________________________________________________________________

____________________________________________________________________________________________

____________________________________________________________________________________________

____________________________________________________________________________________________

____________________________________________________________________________________________

____________________________________________________________________________________________

________________________________________________________________

查看答案和解析>>

科目：高中英語 來源：遼寧省六校協(xié)作體2016-2017學(xué)年高二下學(xué)期期初英語試卷 題型：閱讀理解

The hottest “green” toy in Germany isn’t made of organic or recycled materials. This one has a solar panel (太陽能電池板) and only runs if kids remember to insert bright red “energy stones” that power the space station. Germany, a pioneer in many renewable energy movements, is also at the forefront of creating environment-friendly toys aimed at making kids think about where energy comes from and how much of it they can use, raising awareness through play. A number of high-tech green toys are on display at this year's Nuremberg toy fair, which runs through Sunday.

Among them, there are hydroelectric-powered toy cars, and doll houses with wind–powered engine and rainwater catchers. The bright green "Future Planet" space station features inner equipment with a fan that is powered by a functioning solar cell. Its aim is to get kids to use their imagination about how energy will be created in the future.

Makers and retailers believe such toys will play an increasingly important role in their future and that of our kids. "Energy is the question of the future and we are definitely thinking about this as we move ahead," said Judith Schweinitz, a spokeswoman for Playmobil, maker of the solar panel-fitted space station. "It is increasingly being brought into our play concept." she added. Studies indicate that green toys which range from those made of sustainable materials to ones like the space station that just raise environmental awareness are becoming more and more popular in the international toy market.

1.The purpose of making the green toys is to ________.

A. give kids the knowledge of technology

B. improve the safety of toys

C. raise kids’ awareness about energy and environment

D. improve kids’ imagination

2.According to the text, ________ uses solar energy.

A. the “Future Planet” space station B. the doll

C. the doll house D. the toy car

3.What can you infer from the last paragraph?

A. Energy is only a question of the future and we needn’t care now.

B. The trend in the international toy market is more and more green toys to raise environmental awareness will hit the market.

C. Energy has been brought into our play concept too much according to Judith Schweinitz.

D. The green toys made of sustainable materials haven’t become popular yet in the international toy market.

4.The hottest “green” toy in Germany is ________.

A. made of organic or recycled materials B. made of green stones

C. driven by an advanced motor D. equipped with a solar panel

查看答案和解析>>

科目：高中英語 來源：山西省太原市2016-2017學(xué)年高二5月月考英語試卷 題型：閱讀理解

Laughter is a universal way to express joy. But as it turns out, your laughter reveals a lot more than the fact that you are happy. It enables listeners, even those that cannot observe you, immediately to realize if you are having a good time with a close friend or laughing politely with a complete stranger.

At least that is the conclusion reached by a team of scientists led by Greg Bryant, an associate professor of Communication Studies at the University of California, Los Angeles. The researchers began by requesting participants from across the globe to send them audio clips(音頻片段) of people laughing. The 48 tapes they received ranged from recent recordings of laughter between two college friends to ones from conversations that occurred a decade ago. The clips also had all possible combinations — interactions between friends, strangers, all-male groups, all-female groups, as well as a mix of both genders(性別).

The team then played the short recording, each lasting less than a second, to 966 people spread across 24 different cultures around the world. The listeners ranged from people living in remote areas to those living in some of the world’s most modern cities. To the team’s astonishment, despite the cultural and regional differences, the listeners were able to identify the difference in laughter between friends and strangers, 61% of the time.

The scientists, who published their findings in the Scientific Journal, say that the accuracy was even higher when it came to recordings of only women laughing. The researchers think that this is probably because women are more transparent in expressing their feelings than men.

Bryant says that the results of this cross-cultural examination show that people all over the world perceive laughter in similar ways. As Neuroscientist Carolyn McGettigan at the Royal Holloway University of London puts it, “A laugh among friends is a special sound, no matter where you live!”

1.What can we learn about Greg Bryant’s research?

A. It was based on tapes from 966 people.

B. Its findings were beyond the team’s expectations.

C. It proved that laughter is a universal way to express joy.

D. Most of his findings were published in the Scientific Journal.

2.Why did the listeners identify all-female laughing more accurately?

A. Women are sensitive to interesting things.

B. Women are less likely to hide their feelings.

C. Women prefer to express their joys by laughing.

D. Women are good at communicating with others.

3.What does the underlined word “perceive” probably mean?

A. Understand. B. Receive.

C. Explain. D. Spread.

查看答案和解析>>

科目：高中英語 來源：貴州省2016-2017學(xué)年高二下學(xué)期第三次月考英語試卷 題型：完形填空

In a tiny room, Jenny was lying in bed waiting for an operation, nervous and worried. ______, another patient was squeezed in. After a gentle greeting, they _____ the chatting. The 80-year-old newcomer was named Susan. Her son ____ ran a company as CEO and her daughter worked on a TV station as director. Since her children were too ____ to take care of Susan, she lived in an old people’s home. Susan was proud of her children who had wonderful ___ . Jenny really______Susan. Compared with Susan, Jenny was ____ but an ordinary country woman whose children were just ordinary workers.

Soon, it was supper time, Jenny’s daughter cooked _____ dishes which were her favorite. Jenny invited Susan to share her supper, but she ____ .Susan was ____ her daughter when she received a call. ____ ,her children couldn’t come to visit her. Worse still, Susan had ____ the mealtime in the hospital. She lay in bed, _____ and silent. Jenny’s daughter offered to buy her some food but she had no appetite ____ .

The next day, Jenny and Susan would go through a series of regular medical checks before the operation. Jenny’s daughter ____ to her carefully while Susan was still alone. Out of sympathy, Jenny’s daughter offered to queue(排隊) up, fill in different ____ and register for Susan. For several days in hospital, even during her _____,Susan’s children didn’t show up. Susan really envied Jenny whose daughter looked after her all the time ____ she recovered and moved out of hospital.

Care from the loved ones when ill can really make one happy and encouraged, especially for a(n)____ parent. So while devoted to your career, don’t forget your role in your ____ .

1.A. Respectably B. Unexpectedly C. Delightedly D. Patiently

2.A. succeeded in B. turned into C. brought about D. participated in

3.A. unnamedly B. successfully C. technically D. independently

4.A. guilty B. rough C. unwilling D. busy

5.A. improvements B. documents C. occupations D. conservations

6.A. respected B. impressed C. envied D. aroused

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

8.A. an amount of B. a great deal C. a great many D. a plenty of

9.A. rejected B. paid C. misunderstood D. struggled

10.A. disturbing B. praising C. expecting D. inviting

11.A. Possibly B. Strangely C. Generally D. Unfortunately

12.A. knew B. missed C. followed D. ignored

13.A. disappointed B. anxious C. astonished D. nervous

14.A. in fact B. at once C. at all D. in length

15.A. obeyed B. examined C. attended D. protected

16.A. forms B. gaps C. positions D. surveys

17.A. checks B. recovery C. stay D. operation

18.A. unless B. although C. until D. because

19.A. ordinary B. loving C. careful D. aged

20.A. family B. health C. friendship D. growth

查看答案和解析>>

同步練習(xí)冊答案