Air pollution is a big problem for cities in most countries． Many people are dying from it． But how can we tell the air quality is good or bad？
On a tree next to a river in Amsterdam， a tiny birdhouse glows （发光） bright green when the air is clean． If you're standing nearby， the birdhouse will also give you a free Wi﹣Fi connection﹣but only if pollution level is low enough． The designer is Joris Lam． His birdhouse tells you about the air quality．
Joris' birdhouse is called TreeWifi． It can be put on a tree around your house to test the air quality． People can see a screen with information about the local air quality and how to improve it． TreeWifi is a simple way for people to know about the air pollution around them． If the birdhouse does not glow， people should care more about the environment． It reminds them to change their lifestyles． For example， to protect the air， they can ride bikes or just walk instead of driving cars．
"Imagine if trees gave free Wi﹣Fi， people would plant more trees like crazy． It's a pity that they only give us the oxygen（氧气） we breathe，" Joris said．
The birdhouse doesn't work as a home for birds now． Joris and his team are trying to make some changes to it． In the future， they hope birds will live in the birdhouse and the heat of its green light will be used to keep birds warm in winter．
（1）What does the underlined word "it" in Paragraph 1 refer to？
A． The birdhouse．
B． Air quality．
C． Air pollution．
（2）People can get a free Wi﹣Fi connection when ．
①people are standing nearby
②the pollution level is low enough
③the air quality is low enough
A．①②
B．②③
C．①③
（3）Joris designed a screen for the birdhouse to ．
A．receive the free Wi﹣Fi connection
B．protect the birdhouse from the rain
C．show information about the air quality
（4）In the future， the birdhouse will also be used ．
A． as a home for birds
B． to tell us the weather
C． to give us the oxygen
Many animals are in danger around the world．Here are some examples．
|
The blue whale lives in oceans around the world．It is the largest animal in the world，but it eats the smallest animals for food．Many people kill the whales．And not enough clean water is also a problem．There may be only 1，300 blue whales left． |
|
The wild Bactrian camel lives in Northwest China and Mongolia．It is a large camel and the only species （种类） in the world with two humps （骆驼）．There are perhaps 950 left in the wild． |
|
Many Asian elephants live in India but you can find them in other countries as well．There are many elephants which work for people．There might be 35，000 Asian elephants left in the wild． |
43．Is the largest animal in the world．
A．The blue whale
B．The wild Bactrian camel
C．The Asian elephant
44．Where does the wild Bactrian camel live？
A．In oceans around the world．
B．In Northwest China and Mongolia．
C．In India and some other countries．
45．How many Asian elephants are there perhaps left in the wild？
A.950
B.1，300
C.35，000．
October 21，2013was an unforgettable day．Harbin had to close roads and schools，and stopped hundreds of flights from its airport，because the air pollution was so bad there．
News reports said the smog （雾霾） was so thick that people couldn't see more than 10or 20meters in front of them．The city's website said："You can't see your own fingers in front of you．"The local people said there was a"burning"smell in the air．Many people covered their noses and mouths with scarves．
The pollution was caused for the following reasons：farmers burnt off corn stalks （称）；the people burnt coal （煤） for heating and winds were low，which allowed the smoke to remain over the city．
Harbin has a population of more than 10million people．It lies in northeastern China，where cold winter weather can last six months．The main fuel （燃料）there is coal，because it is cheaper than other types of fuel．
Air pollution from burning coal can cause health problem like heart disease．During the smog days in Harbin，the number of people taken to the hospital with breathing problems was 30% higher than usual．
The local government is trying to use less coal by adding much better roofs and windows to building to cut heating needs．It has also used cleaner fuel for cars and factories．
66．Which of the following sentence is the best for the blank （ 横线）in paragraph 2？
| A． |
They could not even see the person standing next to them． |
| B． |
They lived a healthy and happy life． |
| C． |
They got up a little earlier than before to enjoy fresh air． |
| D． |
They could hear each other clearly． |
67．What is talked about in paragraph 3？
| A． |
The people of the city． |
| B． |
The food of the city． |
| C． |
The reason for the pollution． |
| D． |
The life of the farmers． |
68．Coal is the main fuel in Harbin，because
| A． |
coal is richer in Harbin． |
| B． |
coal is cheaper in Harbin． |
| C． |
coal is greener in Harbin． |
| D． |
coal is clean in Harbin． |
69．How does the local government cut heating needs？
| A． |
By using cleaner fuel for cars and factories． |
| B． |
By burning off corn stalks and coal． |
| C． |
By stopping hundreds of flights from its airport． |
| D． |
By add much better roofs and windows to buildings． |
70．What's the best title （标题） of the passage？
| A． |
The air pollution in Harbin． |
| B． |
The water pollution in Harbin． |
| C． |
The noise pollution in Harbin． |
| D． |
The land pollution in Harbin． |
Very often． when we see young people sitting there． looking at the screen of mobile phone and smiling． we may think nothing is wrong． But when we come to the question how much time do they actually spend on media （传播媒介） daily？"， the answer is surprising go young people spend about nine hours every day using media， and this only includes media used for enjoyment．
Today's young people seem to have become crazy multitaskers．They often use media when doing other activities． Some watch TV when doing homework， some text （发短信），and some others listen to music． But what do young people think of this？ A research showed that two thirds of them believed watching TV or texting had no influence on their schoolwork． Half of them thought using social media made no difference． However， researches have given a different answer： media multitaskers" did worse in tests．
Scientists did a research among more than 400 students． I shows that those who text a lot have more trouble sleeping and do worse in their study． In another research． students who didn't text during a lesson took down a lot more notes than those who were texting． A similar research also found that students who texted when doing schoolwork had lower overall （总体的） grades．
According to a research， if a kid uses social media a lot， especially at night he or she will sleep worse and feel more nervous and depressed （消沉的）．On the one hand，young people stay up late to check messages and information． They may also be woken up by messages they receive．On the other hand，even the light from a screen could influence their sleep． Some other researches also show that children who use media at night go to bed later， get fewer hours of sleep each week， and become sleepy more easily during the daytime．
（1）The answer to the question in Paragraph 1 is surprising because young people ．
A． spend about 9 hours on media for fun daily
B． often look at their mobile phones and smile
C． always sit there for a long time doing nothing
D． use different kinds of media to relax themselves
（2）The underlined word "multitaskers" in Paragraph 2 refers to people who ．
A． ask a lot of questions
B． use different media for learning
C． have several mobile phones
D． do several tasks at the same time
（3）From the passage we can learn that a kid will probably if he or she uses social media a lot at night ．
A． become more worried
B． get more excited
C． take fewer notes in class
D． sleep much better
（4）What is the passage mainly about？
A． Social media is very popular among young people．
B． Using media too much has a bad influence on young people．
C． The use of social media has both advantages and disadvantages．
D． Mobile phones are the main tools students use for school learning．
Energy is everywhere in the world．We use energy every day．There are all kinds of energies in the world，such as hydropower resources，sun's energy，wind power．
Liangshan is called"kingdom of hydropower resources"．Jinsha River，Yalong River and Dadu River are just like three great dragons carrying hydropower resources to Liangshan from the
Qinghai﹣Tibet Plateau．The government has planned to build 11large and super hydropower stations on Jinsha River，Yalong River and Dadu River within Liangshan．On the other hand，there is rich wind power in Liangshan．The government is building a large wind power station between Huili and Ningnan．
Electricity is a form of energy，and this is what powers the TV，mobile phone，fridge and more．Our growing need for energy is one of the problems in the world today，because producing electricity also produces pollution．Although energy in Liangshan is very rich，we must do something to protect the environment and save lots of energy．
Here are some simple ways to make a big difference when we're using electricity．
On or off？Leaving TV and computers on with the little red light showing still uses electricity，even though they might look like they're turned of．To stop this，you can turn them off．
Light out!Turning light off when you're not in the room can save a lot of energy．
Fridge door closed．Try not to leave the fridge door open or put hot things inside when you used the fridge．Because it takes a lot of energy to keep cool．
Use the sun's energy．An increasing number of people are fitting solar panel to their houses．They create electricity from sunlight．which can then be used to make hot water or do the cooking and so on．
73．From the passage，we can know" hydropower resources"may be resources got from in Liangshan．
| A． |
the sunlight |
| B． |
the sea |
| C． |
the river |
| D． |
the wind |
74． can save energy according to the passage．
| A． |
To turn off the light when you're not in the room |
| B． |
To do some cooking |
| C． |
To leave the fridge door open or put hot things inside |
| D． |
To leave TV and computers on |
75．Maybe the passage comes from
| A． |
a novel |
| B． |
a magazine |
| C． |
a fairy tale |
| D． |
a historical story |
76．Which of the following is TRUE according to the passage？
| A． |
We have some energy problems today． |
| B． |
The fridge can't keep food fresh，cool and healthy． |
| C． |
When we produce electricity，we don't produce pollution． |
| D． |
Electricity from sunlight can't be used to make hot water． |
77．The passage does NOT tell us ．
| A． |
something about electricity in Liangshan |
| B． |
how to use the mobile phone |
| C． |
producing electricity also produces pollution |
| D． |
some different ways to save electricity． |
C
Have you ever been to Yellowstone National Park，a national park primarily in the US state of Wyoming（怀俄明州）？At Yellowstone National Park，①．When they are heated for more than a few minutes，they will break up．
In Atlanta，the USA，there is a popular restaurant which is very special．In the restaurant，waiters no longer throw uneaten food into litter cans．Instead，②．
In America，a new activity known as "zero waste" is becoming popular．It is carried out in schools，cafes，gyms，parks，restaurants and other places．"Zero waste" activity calls on people to produce less litter．It encourages people to reuse whatever they can．
Although the idea seems a little unrealistic （不现实的），it is necessary．According to a new report，American people produce the largest amount of the litter in the world．Each person produces almost 4.6pounds of litter every day．More than half of the litter which is put into landfills is harmful．Actually，this is bad for the environment．Besides this，more landfills（填埋场） are needed．
"Nobody wants to have a landfill lying near his house，"said Jon D．Johnson from the Environmental Protection Agency，which helps to carry out "zero waste" activity．"There are not enough landfills，so we can't put all our litter into them．We should try to recycle it as much as we can．"
61．从A、B、C中为①②处选出恰当的选项，使文章通顺、连贯、合理．
A．the plates used for food are made of a special kind of plastic
B．there are several restaurants
C．the food is used to make compost（混合肥料）
① ②
62．在文章中找出能替换划线词语"位于"的英文单词． ．
63．What's the purpose of "zero waste" activity in paragraph 3？
64．请将文中划线部分"More than half of the litter which is put into landfills is harmful．"译成汉语．
65．What's the main idea of this passage？
．
Many places in the world need more fresh water. Every country is trying to find ways to turn salt water into fresh. Why aren’t there many factories like the Symi factory?
In some places the sun is not hot enough. Or it does not shine every day.
In such places other ways of heating sea water can be used. These ways cost more money, but they work faster than the sun. By boiling sea water with high heat a lot of fresh water can be made quickly.
But heating is not the only way to get fresh water from salt water. Other ways are tried.
One way is freezing. The fresh part of salt water freezes first. To get fresh water, the bits of ice are taken out.
Which way is the best? The one that gives the most water for the least money. It may be a different way for each place.
Symi’s way seems very good for small, hot places. It does not make much water at a time. But the factory is easy to build and costs little.
That is why people in many dry places talk about Symi. From the passage we know that fresh water _____________.
| A．is needed in many countries | B．is needed in every country |
| C．can be used in many ways | D．is very important for factories |
The Symi factory __________.
| A．turns salt water into fresh | B．can be built everywhere |
| C．can make much fresh water at a time | D．doesn’t need sunshine every day |
Which is the best way for small and hot places to get fresh water?
| A．Boiling the sea water. | B．Heating the sea water. |
| C．The Symi’s way. | D．Freezing the sea water. |
What fact doesn’t the passage mention (提到)?
| A．New ways of getting fresh water. |
| B．A lot of fresh water can be made quickly by heating. |
| C．The best way is to get the freshest water with the least money. |
| D．The Symi’s way doesn’t work in dry places. |
The Symi’s way is not suitable for _________ places according to the passage.
| A．small | B．hot | C．cool | D．dry |
Eight years ago， 1﹣week﹣old Diandian was left behind． When people found her in the reeds （芦苇） of a lake， she looked too weak to survive． Now she is the mother of three milu， thanks to the workers' attention and care at the East Dongting Lake National Nature Reserve．
Li is the president of a milu conservation association in Yueyang and head of a local milu and bird rescue center， where 11 deer， including Diandian， have their families． Li and his workmates need to work extra hours to take care of the animals from March until mid﹣May． He remembers March 18 this year． He fed Diandian some fresh shoots and leaves for breakfast as usual， and moments later when he returned，a newborn milu was right beside her． Since it is her third baby and born in the third month of the year，people named it Sansan， referring to "three﹣three"． Li has developed a deep affection for milu and made up his mind to protect them． "As our country is paying more attention to environmental and wildlife protection， people are increasingly aware that milu are state﹣protected animalsm，" Li said．
Milu habitats （栖息地） are usually centered around water， and fishing equipment that used to be a threat to the animals is no longer seen in nature reserves． On May 27， a team of experts went to watch milu near Dongting Lake． It takes time and luck to meet one and count them especially when they live in the thick reeds that are 4 to 5 meters tall． The team leader Song， saw a milu for the first time when he was studying for his doctorate in zoology early in 2009． Since then， he has helped protect the habitats at Dongting Lake． As the flood season is coming， Song and his workmates will go around the lake area day and night to save deer in trouble， and provide feed for the animals when needed．
As the environment improves in and around Dongting Lake， China's second﹣largest freshwater lake， the wetland has become cover once again for wildlife． "We will continue to protect these rare animals and their living environment，" Song said．
请将答案写在答题卡上
（1）How was Diandian when she was found in the reeds eight years ago？
（2）Why do people call Diandian's new baby Sansan？
（3）Why does Li think more people realize milu are state﹣protected animals？
（4）When did Song start to devote himself to protecting the habitats at Dongting Lake？
（5）What can you learn from Li， Song and Their workmates？ （请自拟一句话作答）
Have you ever heard of e﹣waste（电子垃圾），which can be produced every day？
How do you deal with your computers， MP4 players and mobile phoneswhen they're broken or you want a new one？ Most people just throw them away． With the development of electronic industry（电子产业）， e﹣waste pollution has become a serious problem． According to the United Nations， in 2014， people around the world produced 41 .8million tons（吨） of e﹣waste and only recycled 6． 5million tons． The US was the biggestwaster，producing7． 1million tons． China came second． with 6million tons．
It's important to pay attention to e﹣ waste． It can either be valuable orharmful， depending on how we deal with it． E﹣ waste is a valuable urban mine（城市矿藏）． The value of the metals， like gold and silver in the waste aroundthe world， is surprising． And the metals can be reused． But if people throwthem away， the toxic chemicals（有毒化学物质） can get into the earth or air． affectingthe environment and people's health．
Apple， for example， now recycles people's used products in China whenthey are buying new ones． The company will test and repair the used ones andsell them at lower prices． To help reduce e﹣waste， we can buy longer lastingelectronic products．If you have unwanted electronics， find a new home forthem． You can also take computers and phones to see if companies offerrecycling programs．
（1）The following can become e﹣waste EXCEPT ．
| A． |
computers |
| B． |
mobile phones |
| C． |
plastic bags |
| D． |
MP4 players |
（2）Which country producedthe second most e﹣waste in 2014according to the United Nations？
| A． |
China． |
| B． |
America． |
| C． |
Japan． |
| D． |
France． |
（3）The underlined word" affecting" means ．
| A． |
保护 |
| B． |
提高 |
| C． |
改善 |
| D． |
影响 |
（4）We can to reduce e﹣waste．
| A． |
sell the electronics to Apple company |
| B． |
buy longer lasting electronicproducts |
| C． |
keep the unwanted electronics in our bedrooms |
| D． |
throw away the unwanted electronics |
（5）The main purpose of this passageistov．
| A． |
prove that e﹣waste is not useful |
| B． |
encourage people to buy more electronic products |
| C． |
advise people to deal with e﹣waste properly to reduce pollution |
| D． |
advise people to sell the unwanted electronics |
More children in China are putting on weight.In 2018，16 percent of Chinese children were overweight，according to the National Health Commission（NHC）.
Being too fat is bad for children' s health.According to the World Health Organization （WHO），overweight children are more likely to develop diseases like diabetes（糖尿病） at a younger age.This can lead to a higher chance of earlier death.
On Oct 23rd，the NHC，together with five other national departments，worked out a plan.The plan aims to reduce the growth of fatness among children aged 0﹣18 years by 70 percent from 2020 to 2030，Xinhua reported.
Kids are putting on weight because of changes in their diet and lifestyle，according to experts.Too much schoolwork and greater use of electronic devices（ 电子产品） could also be a cause.
According to the plan，teachers should not allow their classes to run too late or too early.They should make sure that students have breaks and enough physical（躯体上的） activity.School students should have at least three hours of active physical activity each week.
Parents should reduce their children's use of electronic devices and stop their children from eating foods that are high in sugar，fat and salt.
（1）According to the WHO，we know .
| A． |
16% of Chinese children were overweight in 2018 |
| B． |
Being too fat is good for children's health |
| C． |
Overweight children are more likely to develop diseases |
| D． |
Fatness can lead to a higher chance of long life |
（2）Which one is NOT experts' opinion？
| A． |
We should reduce the growth of fatness among adults. |
| B． |
Changing in children's diet and lifestyle leads to being too fat. |
| C． |
Too much schoolwork maybe leads to being too fat. |
| D． |
Greater use of electronic devices could cause children to put on weight. |
（3）School students should have active physical activity for .
| A． |
three hours a day |
| B． |
more than three hours every day |
| C． |
at least three hours each week |
| D． |
less than three hours each month |
（4）What's the main idea of the passage？
| A． |
Overweight isn't a problem. |
| B． |
Say no to children's getting too fat. |
| C． |
Putting on weight is necessary for the kids. |
| D． |
Teachers should not allow their classes to run too late. |
According to the finding of a new UN report，the world wastes about one sixth of the food each year.That's about 1，030，000，000 tons，or 121 kilograms for each person on the Earth.
61% of the food waste is from home cooking.Food services，such as restaurants，produce 26% and groceries （食品杂货店）and other stores 13% "We thought waste was a problem in rich countries，" says Martina Otto，who works for the UN Environment Program.
"However，the new report finds，food waste is a big problem in nations rich and poor."
Each year，some 690，000，000 people go hungry.At the same time，about 10% of all CO2 on the Earth is from the activities that produce the food waste.Control on food waste can help deal with hunger and cut down that pollution.It is helpful to both people and the planet.By avoiding wasting food，we can save money and time.More importantly，we can help protect the Earth's most valuable resources （资源）.
Then what can we do to stop food waste？Small actions make a difference.Each of us can play a part.Next time，before you throw，think twice!
（1）Where is most food waste from？
A.Home cooking.
B.Restaurants.
C.Food stores.
D.Groceries.
（2）What is the third paragraph （段落）mainly about？
A.How we can protect the Earth.
B.Where we shall find resources.
C.Why we should avoid food waste.
D.What we will do with pollution.
（3）What is the purpose of the text？
A.To collect money.
B.To call for action.
C.To get some advice.
D.To express thanks.
How would you feel if someone decided to take away your park？ Well that's what's happening in my community． There's a park that some people want to turn into a golf course（高尔夫球场）．Let me tell you why I think it's a bad idea．
First， a park is meant to be for the whole community． Not everyone likes golf， so not everyone will get to use the park． This isn't fair． A community park should have open spaces for everyone to use．
Second， to make way for the golf course，lots of playground equipment（设施）will have to be moved or knocked down， which is a waste of time and money．It's also a waste of perfectly good equipment，The swings， for example， will probably just end up as litter．
Third， what about giving young people something to do？Not all kids are crazy about golf．At the moment， the park has a skating place and a playground． These attract lots of kids from the community． If you turn the park into a golf course， these kids won't have anywhere to go and they won't have anything to do．This means that they will stay at home and turn on a video game rather than get some exercise． It also means that they might be out on the street causing trouble．Wouldn't it be better to give them something to do at the park？
Finally，golf is expensive．Building a golf course and maintaining（维护） it costs a lot of money．Who is going to pay to maintain the golf course？ What about those people who can't afford to join a golf club？That means that the golf course will only be available to people with lots of money．
Turning our park into a golf course is a bad idea．I suggest we have a community meeting before plans go any further．
（1）Some people want to change the park into ．
A． a golf club
B． a golf course
C． a parking place
D． a skating place
（2）According to Paragraph 4， having nowhere to go will make some children ．
A． go to get some exercise
B． fall in love with golf
C． play video games at home
D． go to the street and make friends
（3）Which of the following shows the structure of the passage？
（P＝ Paragraph）
（4）What is the writer's purpose in writing this passage？
A． To help carry out further plans．
B． To make the park more beautiful．
C． To encourage children to go skating．
D． To stop the golf course from being built．
In China， each year we produce about 150 million tons of city waste according to report．Where does the waste go？ People usually burn or bury（埋）it．On the other hand， we receive waste from some developed countries． We get useful materials from it．What about the useless part？ Still burned or buried．But is it a proper way？
Waste pollutes the environment， harms people's health and causes animals to die．It also gets in the way of green and sustainabledevelopment． We can't make money at the cost of the environment．We should leave clean water and green mountains to our next generations （一代人）．
China is getting really serious about waste now．
We are taking less waste from developed counties．From January 2018，China started to stop 24 kinds of waste coming into our country．And more laws and rules about dealing with waste have been made．Anyone who breaks the law will be punished．
China also tries to put waste into good use． One example is the waste electricity factories． They burn waste to make electricity in a green way， No harmful gases or water will get into the environment．
The Chinese government is encouraging people to do waste sorting （分类）． Cities like Shanghai，Chongqing and Beijing have their own storing systems．More will join then soon．As President Xi Jinping said during a visit to Shanghai，waste sorting is a new fashion （时尚）．More and more people are forming the habit of separating their waste．
（1）The writer starts the passage by ．
| A． |
telling stories |
| B． |
comparing numbers |
| C． |
raising questions |
| D． |
giving suggestions |
（2）The underlined word "sustainable" in Paragraph 2 means" " in Chinese．
| A． |
可享受的 |
| B． |
可持续的 |
| C． |
可借鉴的 |
| D． |
可复活的 |
（3）From the passage，we know that ．
| A． |
waste does harm only to the environment |
| B． |
those who break the law may not be punished |
| C． |
China stops getting waste from developed counties |
| D． |
waste sorting starts to become popular in China |
（4）The structure of the passage may be ．
（①＝Paragraph 1 ②＝Paragraph 2 ③＝Paragraph 3 ④＝Paragraph 4 ⑤＝Paragraph 5 ⑥＝Paragraph 6）
Scientists in Britain and the United States have made a new kind of enzyme（酵素）that eats plastics（塑料）． With its help， plastics can be turned into smaller parts and go away quickly． Scientists believe that， in the future， it could solve the problem of plastic pollution．
The enzyme is able to break downPET， a form of plastic． PET was first made in the 1940s and is now widely used to make plastic bottles． It can remain in the environment for many years and pollute large areas of land and water． So it has always been a headache to deal with the waste from PET and other plastics．
The researchers made the discovery（发现）while examining the structure of a natural enzyme in Japan． They found that the natural enzyme was helping to break down PET plastics． So， they decided to make small changes to the enzyme by adding some amino acids（氨基酸）． It made the natural enzyme's plastic﹣eating abilities work faster and better．
John McGeehan， one of the lead researchers， said， "We've made an improved enzyme． It's better
than he natural one． And we are trying to make more improvements to it． "He went on， "The enzyme is not harmful to humans or animals， and it is friendly to the environment． So we are considering putting it into wider use．"
The team is now trying to make the enzyme break down PET in large quantities（大量地）．"We'll see that the plastic pollution may be stopped with this technology． However， there is still a long way to go，"John McGeehan added．
（1）According to the scientists， the enzyme may solve the problem of pollution．
| A． |
air |
| B． |
water |
| C． |
light |
| D． |
plastic |
（2）The underlined phrase "break down" in the passage probably means " " in Chinese．
| A． |
实验 |
| B． |
生产 |
| C． |
发明 |
| D． |
分解 |
（3）Researchers discovered that a natural enzyme helped eat plastics ．
| A． |
in Britain |
| B． |
in the US |
| C． |
in Japan |
| D． |
in China |
（4）Which of the following is TRUE according to the passage ？
| A． |
The scientists are still trying to improve the enzyme． |
| B． |
The enzyme will pollute large areas of land and water． |
| C． |
The natural enzyme works better than the improved one． |
| D． |
The natural enzyme is harmful to humans and animals． |
You only have one pair of eyes， so take care of them． When you're in the sun， wear sunglasses． Sunshine can damage your eyes． When your eyes itch or hurt， don't rub them．Your fingers have germs on them． These can get into your eyes and make you sick． Staring at a computer screen can strain your eyes．You blink （眨眼） your eyes 10 times every minute． But when you stare at something， you only blink two or three times per minute． So remember to blink more． This helps your eyes．
（1）Why should we take care of our eyes？
（2）When you're in the sun， what can you wear？
（3）Why shouldn't you rub your eyes when they itch or hurt？
（4）How can you protect your eyes when you stare at a computer screen？
（5）What does the writer want to tell us？
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