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 |
Governments around the world are pushing for an end to plastic straws （吸管） and bags.More and more businesses are turning to paper products as a choice.Paper is considered by many to be better than plastic.However，it，too，is harmful to the environment.
Firstly，paper bags and straws are made from trees.Trees，as you know，can reduce （减少） carbon dioxide （二氧化碳） levels in the atmosphere. Theycan slow down climate （气候） change.An increase in the use of paper bags can cause more acts of cutting down trees.
Secondly，products made from paper require more energy and water.About 10 percent more energy and four times as much water is used to produce a paper bag than a plastic one.You might say that we can use recycled paper to save that energy and water.This seems to be a good idea.However，it takes even more energy and water to go through the recycling process than to make a brand new paper bag.Products made from recycled paper are also often short﹣lived.
Thirdly，paper products are heavier than plastic ones.That means they require more oil to transport.Seven trucks are needed to transport two million paper bags，while only one truck is needed to transport the same number of plastic bags.The increased weight also leads to a large amount of waste once the bags are thrown away.
Paper products are actually a lose﹣lose for both the environment and businesses.They are more expensive than plastic products.A paper straw costs about 5 to 12 cents，while a plastic one usually costs only about 2 cents.
The most environment﹣friendly solution is to avoid single﹣use products altogether.Products like glass water bottles and steel straws can be used over and over again.They are much better than either paper products or plastic products.Through increasing the use of these products，you can greatly reduce your throwaway waste and truly make our Earth a greener place!
（1）What does the underlined word " They" in Paragraph 2 refer to？
| A． |
Plastic products. |
| B． |
Trees. |
| C． |
Paper products. |
| D． |
Businesses. |
（2）Compared with transporting two million plastic bags，transporting two million paper bags requires .
| A． |
fewer trucks |
| B． |
six more trucks |
| C． |
twice as many trucks |
| D． |
the same number of trucks |
（3）The writer compared the price of a paper straw and that of a plastic straw to show that .
| A． |
paper products are not a good choice for businesses |
| B． |
it is difficult for all businesses to turn to paper products |
| C． |
most people believe paper products are better than plastic ones |
| D． |
paper products are as harmful to the environment as plastic ones |
（4）By writing this article，the writer mainly wanted to .
①compare plastic products with paper ones
②correct people's wrong ideas about paper products
③suggest people use reusable products like steel straws
④list the advantages and disadvantages of using paper products
| A． |
①② |
| B． |
③④ |
| C． |
①④ |
| D． |
②③ |
Robots have come a long way since 15th century. We’ve got robots to build cars, carry heavy things, work in dangerous places and explore planets. But things haven’t stopped there.
In 1986, Honda made a robot called ASIMO. And now, it has been developed greatly. Standing at 130cm and weighing 54kg. ASIMO is very much like a small astronaut wearing a bag on the back. And he can walk, flight, climb and run fast. Isn’t it wonderful?
The world’s first robot teacher is Saya. With her human-like face, she can show expressions like happiness, surprise, sadness, dislike, fear and she can even smile or show anger at students, which look much like a real teacher’s. To do this, her rubber skin is pulled from the back with motors inside. And her eyes and mouth have wires(电线) too. She can also say some simple words like “hello” or “thank you”.
In the UK, the development of robots is exciting. The mini-robots will send food, clean floors, collect and throw away waste. These robots can open doors by themselves and stop if anything or anyone is in the way.
These mini-robots are very useful for controlling infection(传染). Usually clean and dirty work is done by the same person, but here, you’ll have robots that do”dirty work”, like collecting dirty sheets, or taking away hospital waste; and you’ll have robots that do”clean work”, like bringing meals or clean sheets to patients. The robots have separate work so there’s no way for infection, which is great. But of course, robots would not take the piece of humans, but would free up more time for nurses to be with patients.
But if this is what it’s like in 2011, what’s it going to be like to 2021? In the following, which is ASIMO’s behavior?
| A．Smiling at people, saying “hello”. |
| B．Sending food or opening doors by himself |
| C．Fighting, climbing or running fast |
| D．Collecting waste for patients |
What makes Saya look real?
| A．Her face and rich expressions | B．Her clothes and shoes |
| C．Her walking and running speed | D．Her rich knowledge |
Which of the following is true according to the passage?
| A．Robots have come a long way since 1986. |
| B．The first robot teacher was made by Honda. |
| C．Saya looks like a small astronaut. |
| D．If anyone or anything is in the way, mini-robots will stop. |
The main idea of Paragraph 5 is that _______.
| A．nurses would have more free time with patients |
| B．robots would not take the place of humans |
| C．dirty and clean work is always done by the same person |
| D．mini-robots are useful for controlling infection |
Last week，Chicago became the first city in the US to join the "Lights Out Plan"．People turned off the lights in the city's tallest buildings，so that thousands of birds could get to their winter homes．Every year in autumn，some birds fly over Chicago on their way to the south，and come back the next spring．
Lights mean danger to birds．Birds find their way by looking at the stars in the sky．Lights in tall buildings are so bright that birds may mistake them as stars．This means they can not find the right way to go home．
This month，about 300types of birds are flying over Chicago to go back to the south to live through the cold winter．Birds fly to warmer places for a few reasons．Many birds cannot live in the cold，so they fly to warmer places．But there are other reasons，too．Birds need to look for food in the south．Another reason is that they want to have baby birds．Many birds like to have their baby birds in the same "house" they lived in last year，so they fly back there．
There are about 9，000kinds of birds in the world，and about 600kinds of birds migrate（迁徙）．Some birds can fly a very long way．Sometimes they fly to other countries．We have fewer birds today because there are fewer places for birds．
64．Why did people in Chicago turn off their last week？
A．Because people wanted to save money．
B．Because people liked the dark night．
C．Because people were a afraid that birds would make much noise．
D．Because people were a afraid that birds would lose their way．
65．What does the underlined word "migrate" mean in Chinese？
A．迁徙
B．定居
C．冬眠
D．重生
66．Today we have fewer birds because ．
A．lots of birds are often ill
B．people kill lots of birds
C．there are fewer places for birds
D．other animals eat them
67．Which of the following statements is NOT true？
A．All birds fly to warmer places every year．
B．Some birds have to fly to warmer places in autumn．
C．Some birds can fly a long way to other countries．
D．About 600kinds of birds migrate in the world．
Here's an interview to a pilot about his life.
(R="Reporter;" P= Pilot)
R: How much time do pilots actually spend flying a plane?
P: It varies (WES'J) from about 20 minutes on some domestic (区别) flights to as much as 18 hours on international flights. It all depends on if the flight is a short- or long-haul flight.
R: Do pilots take breaks during flights or do they fly the whole time?
P: Yes, we take breaks during long-haul flights. Airlines assign (指派) three or four pilots to long flights. We take turns flying the plane.
R: If pilots are traveling all the time, how do they deal with jet lag (时差)?
P: Jet lag is annoying for almost all pilots. I try to go to sleep as I would at home.
R: How important is it to know the weight and size of the plane you are flying?
P: It is very important. We weigh almost everything put into the airplane and make estimates (估计) according to the number of people on each flight.
R: Do pilots eat the airplane food?
P: Yes, we eat business class food! Airplane food changes every season and is very delicious if you don't hate eating lobster (龙虾) every day! The pilots on the same plane are supposed to make different meal choices so that if one of the dishes causes food poisoning, only one of them will be sick. That way, at least one pilot will always be well enough to fly the plane!The number of pilots depends on _.
| A．how many hours a plane flies | B．what kind of planes they are |
| C．the airline companies assign | D．what the pilot likes |
In order to know the weight of the airplane, the pilots must know_ __.
| A．the weight of everything put into the plane |
| B．the number of people on the plane |
| C．the weight of the things and people on the plane |
| D．the importance of the weight |
What's the Chinese meaning of the word "poisoning" in the passage?
| A．中毒 | B．难吃 | C．缺少 | D．浪费 |
What does the pilot think of the airplane food?
| A．Airplane food is more delicious than lobster. |
| B．The pilot suggests having airplane food instead of lobster. |
| C．The pilot doesn't like the airplane food at all. |
| D．Airplane food is as delicious as lobster. |
What question doesn't the reporter ask in the interview?
| A．How to keep passengers safe? |
| B．How long do pilots actually spend flying a plane? |
| C．How to deal with jet lag? |
| D．How to take breaks during flying. |
When you feel a sneeze（喷嚏）or cough coming on， covering your mouth prevents the spread of germs（细菌）． You probably knew that．
But how to cover your mouth is very important． You might use tissues（纸巾）， and put your used tissues into the bin． "If you don't have tissues， you should sneeze into your elbow， not your hand， even if you are used to doing that．" The doctors advised．
"If somebody sneezes into his hands， those germs will be passed on to other people， or other objects that people touch．" said Dr． Hill．
Germs are most commonly spread by sneezing and coughing． When they land on your hands， they are passed from hands to things like money， door knobs（扶手）， elevator buttons（电梯按钮）and other surfaces． At the same time， the people around you can touch them．
This isn't nagging（唠叨）． The Centers for Disease Control also suggest that sneezing and coughing into your elbow is necessary． Even the New York City subway officers ask the passengers to "cough or sneeze into elbow or use a tissue．"
"The suggestion was taken seriously about 10 years ago． However， most people didn't pay much attention to it． That means the adults may have missed the advice． But children are often taught in school the right way to cough or sneeze．" Dr Benjamin said．
To be clear， people can't keep away from all the risks in this way， but it's the best choice． At the same time， we'd better wear masks（口罩） and often wash our hands． "Hand washing is one of the most important things people can do to keep healthy．" Dr． Hill said．
（1）According to this passage， when sneezing or coughing， you'd better NOT ．
A． sneeze into your elbow
B． cover your mouth with tissues
C． use your hand to cover mouth
D． put the used tissues in the bin
（2）If you sneeze or cough into hands， germs can spread through the following activities EXCEPT ．
（3）Which is NOT true according to the passage ？
A． The New York City subway officers ask passengers to use a tissue．
B． The adult may be used to sneezing into their elbow．
C． The children are often taught in school the right way to cough or sneeze．
D． Wearing masks is a good way to keep away from germs．
（4）What's the main purpose of this article ？
A．To tell us the correct way to cover mouth when sneezing or coughing．
B．To tell us how to prevent the spread of germs．
C．To tell us it's necessary to sneeze or cough into elbow．
D．To tell us how to keep away from all risks．
（5）In which layout（版面） of the newspaper can we find this kind of passage ？
A． Health．
B． Sports．
C． Business．
D． Education．
We use the Internet for many things: business, shopping， writing letters, talking to people, finding information and so on. In recent years a new kind of English has grown on the Internet. There’s no real word for it yet, so we’ll call it e-talk. People don’t like typing too much. To save time, they turn phrases into a few letters called acron
yms. Acronyms are often used in chat rooms. Some of them are.
BTW （by the way） BRB (be right back)
LOL (laughing out loud) IMO (in my opinion)
People also use many abbreviations (缩写), They are s
hortened forms of words. Some common abbreviations are:
Info (information) purer (computer)
Pie (picture) sec (second)
We usually don’t see people when we communicate (交流) on the Net, so people have new ways to show feelings. Most people use their keywords to draw “feeling”. such as:
:-)( happy) :-p(joking) :-( (sad) :-0(surprised)
These days, many forums (论坛) have picture feelings. For example，
There are even whole new words, like” newbie’s”(someone who is new on a chat board or forum).
It takes time for people to get used to (适应) e-talk. Also, different groups on the Net have their own special ways of communicating. Newbie’s have to ask other people what they mean. As the Internets grows, e-talk will continue to grow and change. What does the underline “acronyms” mean?
A.网友 B.聊天室 C.首字母缩写词 Why do people type acronyms?
A. to show their feelings.
B. Because people can type them quickly.
C. In this way newbie’s won’t understand them. What does” BTW, my purer is not working well.:-(“mean?
A. The person is angry at somebody.
B. The person is happy about getting a new computer.
C. The person is sad that his computer is having problems. E-talk wills probably .
A. keep changing.
B. be easy by people on the telephone
C. be used by people on the telephoneWhat’s the best title for this passage?
A. E-talk language
B. Picture Feelings
C. How to Use Abbreviations
If you live in Shanghai， you might have taken a "lesson" on garbage sorting（垃圾分类），Shanghai is the first city to carry out（实施）strict rules on garbage sorting． People in Shanghai know that garbage is sorted into four categories（类别）﹣recyclable， harmful， dry and wet waste． If people fail to sort their garbage properly， they can be finedup to 200yuan， while companies will have to pay between 1，000 to 50，000yuan for breaking the rules． Since the rules took effect， the amount of total daily waste in Shanghai has been reduced． The city also rebuilt 21，000 waste﹣sorting stations and more than 40，000 waste bins have been updated．
However， there have also been some problems．Some people complained that it is difficult to deal with wet garbage， as they are asked to remove wet garbage from its bag when dumping． According to the sorting rules， the wet garbage must go in the wet waste bin and the bag must go in the dry waste bin．Because the wet garbage will decompose（分解）properly ad become useful organic（有机的）waste．
By the end of 2020， garbage﹣sorting systems will be set up in 46 cities in our country． Everyone should take an active part in garbage sorting．
（1） is the first city to carry out strict rules on garbage sorting．
| A． |
Beijing |
| B． |
Shanghai |
| C． |
Shenzhen |
| D． |
Chongqing |
（2）Garbage sorting includes four categories﹣recyclable， ， dry and wet waste．
| A． |
harmful |
| B． |
useful |
| C． |
helpful |
| D． |
colorful |
（3）The underlined word " fined" means " "in Chinese．
| A． |
责备 |
| B． |
奖励 |
| C． |
罚款 |
| D． |
提高 |
（4） ， garbage﹣sorting systems will be set up in 46 cities around the country．
| A． |
In 2021 |
| B． |
By the end of 2020 |
| C． |
Since 2020 |
| D． |
At the beginning of 2020 |
（5）According to the passage， we can learn that garbage sorting is ．
| A． |
awful |
| B． |
relaxing |
| C． |
painful |
| D． |
necessary |
In 1988，Wang Chengbang retired（退休）from the army.Instead of enjoying a relaxing life，he volunteered to save the soil from desertification（沙漠化）by planting trees in Korla，Xinjiang.
It is no easy job.The high temperature in Korla makes it difficult for anyone to work day after day in the sunshine.Besides，water is a big problem.In fact，Wang Chengbang's work in the first few years failed as very few trees survived（存活）.
But Wang Chengbang would not give up."After trying many different ways，I have learned how to grow young trees in a better way，" said Wang Chengbang.He also worked out new ways to save water.With his hard work，more and more trees have survived.So far，he has planted more than 1.5 million trees.Those green trees prevent desertification，make the air cleaner and protect people from the hot sun.Now，Korla is a model city in environmental protection.
Wang Chengbang is also successful in fighting cancer（癌症）.In 2005，he had cancer and was told that he had only six months to live.However，he continued taking care of his trees rather than lying on the hospital bed."Working is the best medicine.Planting trees helps to fight cancer，" he often jokes.
Now，at the age of 85，Wang Chengbang is still working.
（1）Is it an easy job for Wang Chengbang to plant trees？
（2）How many trees has Wang Chengbang planted so far？
（3）What is Wang Chengbang successful in？
（4）In the summer holiday，do you want to be a volunteer to work with Wang Chengbang？Why or why not？
Do video games do harm to our children？Today，many children spend a lot of their free time playing games on the Internet.In the UK，99%of kids aged8 to 15 play video games every week.This information tells us that the benefits and dangers of video games must be carefully considered.
For many people，video games are fun.They have bright lights，funny cartoons and exciting stories.Everywhere you look，you can see children playing these games.They play on buses and trains，in restaurants and even at school.
Video games are educational too.They make kids think in a creative way and theyhave to move their hands and eyes quickly.This can improve the way that a child's brain works.What's more，video games make children use their imagination.The player has to do many creative things，like drawing，telling stories and building things.Video games are also a good way to teach children about technology because they can learn how computers and other devices work while they play.
However，a recent study suggests that video games can also be bad for children.First，children can download many games for free.This means that parents often don't know if their children are playing violent or scary games.Second，many children spend too much time playing games on computers and this can lead to health problems.Third，if children spend too much time playing games instead of doing homework，they can have problems at school and get bad grades.Finally，video games can affect children's social skills.If children spend too much time playing video games by themselves，they might not learn how to play with their friends.
In conclusion，it seems clear that video games have some advantages and some disadvantages.It is up to parents to know what games their children are playing and how much time they spend on them.Parents should also make sure their children get enough exercise and spend time with other children.
（1）The underlined word "they" in Paragraph 3 refers to .
| A． |
kids |
| B． |
computers |
| C． |
video games |
| D． |
playmates |
（2）Which disadvantages of video games are mentioned in the passage？
a.Result in bad grades.
b.Make kids feel bored.
c.Lead to health problems.
d.Affect children's social skills.
e.Cause problems between parents and kids.
| A． |
c，d，e |
| B． |
b，d，e |
| C． |
a，c，d |
| D． |
a，b，c |
（3）In the writer's opinion， should play an important role in video games play for kids.
| A． |
family |
| B． |
society |
| C． |
schools |
| D． |
game companies |
（4）What's the structure of the passage？
| A． |
|
| B． |
|
| C． |
|
| D． |
|
Here at Nature Loving Kids，we know how much you want to make a positive（积极的）difference to our world!So，read on to find out how to protect our earth…
| Save energy and water! - On a fine and clear day，hang things outside to dry!This saves energy that would have been used on the dryer（烘干机）. - If you can，try cycling，walking，or using public transport to get out and about，instead of using the car. - Turn the taps（水龙头）off while brushing your teeth，and take short showers of four minutes or less! |
Be an advocate（倡导者）! - Share your knowledge with others，and help them become eco﹣heroes too!It takes lots of people working together to make changes happen - so share，share，share! |
| Reduce，reuse，recycle! - Before you throw something away，stop and think about what else it could be used for! |
Be friendly to wildlife! - Make your garden wildlife﹣friendly!You could build a bee hotel，or even create a pool. - If you own a cat that goes outdoors，put a bell around its neck so that vulnerablewildlife can hear it coming and make their escape! |
What else can you do to make the world better？
Now，get out there and save the world - you can do it!
（1）To save energy or water，you'd better .
| A． |
dry things in the sun |
| B． |
drive a car to work |
| C． |
take long showers |
| D． |
brush teeth with water running |
（2）To call on more people to work together，you should .
| A． |
save energy and water |
| B． |
be an advocate |
| C． |
reduce，reuse and recycle |
| D． |
be friendly to wildlife |
（3）What does the underlined word " vulnerable" mean in Chinese？
| A． |
野生的. |
| B． |
家养的. |
| C． |
强壮的. |
| D． |
弱小的. |
（4）The purpose of the passage is to .
| A． |
help the kids learn English |
| B． |
help people learn more about kids |
| C． |
teach kids how to keep animals |
| D． |
tell the kids how to protect the earth |
（5）This passage is from .
| A． |
a guidebook |
| B． |
a science book |
| C． |
a website |
| D． |
a newspaper |
Dogs might have the latest tools in the fight against cancer （癌症）：their noses!Researchers at California's Pine Street Foundation （PSF） say they have trained five dogs to smell cancer on a prison's breath.This could be exciting news.
A dog's sense of smell may be 10，000 to 100，000 times stronger than ours.But can dogs really smell illness？PSF researcher Michael McCulloch says yes. "We were very surprised by how exact they were，" he said. "They were telling who had cancer，and they were also saying who didn't."
McCulloch and his team asked four healthy people and one with cancer to blow into plastic tubes （塑料管）.Special materials in the tubes kept the things of each breath.The tubes were then placed one yard apart.Finally the dogs were allowed to smell the tubes.Each dog had been trained for three weeks to sit when it smelled cancer.Ninety﹣nine percent of the time，the dog sat next to the tubes blown into by patients with lung cancer.The dogs were right 88 percent of the time about breast cancer.
| Dogs in the Pine Street Foundation test were trained to sit when they smelled cancer.How well did they perform？Take a look at this chart to find out. |
||
| Breath Sample |
Number of Times the Dogs Sat Down |
Number of Times the Dogs Kept Standing |
| Breath from lung cancer patients |
564 |
10 |
| Breath from healthy persons |
4 |
720 |
No lab test for cancer has given more correct results than this test.The results are so amazing that many experts question the dogs' smelling power.They wonder if there were other reasons why the dogs did so well.For example，they thought the way the dog trainers behaved could have influenced how the dogs acted.However，most experts agree that this study is important.The information could help scientists create a simple breath test for cancer in the future.Once again humans may be getting a helping paw or nose﹣from their best animal friends.
（1）What's the latest tool a dog might have in the fight against cancer？
A.Tooth.
B.Nose.
C.Ear.
（2）What happened first in the Pine Street Foundation test？
A.The dogs were trained.
B.The tubes were placed one yard apart.
C.The dogs smelled the tubes.
（3）What was a dog supposed to do when it smelled cancer？
A.Smell again.
B.Turn around.
C.Sit down.
（4）Look at the chart.How many times did the dogs keep standing when they smelled the breath from healthy persons？
A.Less than 10 times.
B.Almost 600 times.
C.About 700 times.
（5）Why do many experts question the dog's smelling power？
A.Because no lab test for cancer has given more correct results.
B.Because the dog trainers influenced how the dogs acted.
C.Because they don't think this study is important.
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）
You don' t have to be a scientist to solve big environmental problems． One Dutch designer is finding creative ways to make a change﹣and he's inviting bikers to join him．
Daan Roosgaarde， 38， is a designer from Holland． He uses creative ideas to improve city life． For his Smog （雾霾） Free Project， he designed a special tower that cleans air in Chinese parks． In Holland， he designed a shining bicycle path．
Now Daan and his team are working with engineers at Chinese bike﹣sharing company Ofo to create a new product for public use． It's an air﹣cleaning machine connected to a bicycle and is part of the Smog Free Project． In smoggy weather， the machine would breathe in the air in front of the bike and blow out a stream of clean air toward the biker's face．
It's no secret that air pollution is a big problem for China． In winter， it's common for thick clouds of haze （霾）， caused largely by factory production， burning of coal and car emissions （排放物）， to cover areas of China．
In 2016， only one﹣fourth of Chinese cities met the country's air quality standards， according to a survey of 338 cities nationwide from the Ministry of Environmental Protection．
"Of course one tower and a few bikes won't solve China's air pollution problem，" Daan said， "But smog﹣free bikes are an exciting idea that will hopefully inspire communities to create greener cities．"
（1）According to the writer， ．
A． air pollution is not a big problem in China
B． creative ideas may help improve city life
C． only scientists can solve big environmental problems
D． the survey of 338 cities nationwide was not necessary
（2）The air﹣cleaning machine offers clean air to the hiker by ．
A． blowing out dirty air
B． running fast with the bike
C． cleaning the air around the biker
D． breathing in dirty air and cleaning it
（3）From the passage， we know that ．
A． people who have creative ideas can get free bikes
B． only smog﹣free bikes can go on the shining bicycle path
C． Daan and his family spent all their time improving China's air quality
D． China's haze in winter happens because of more than three causes
（4）Daan is inviting bikers to join him in order to ．
A． raise money for the tower
B． test his new machine
C． help solve the air pollution problem
D． make more Chinese friends
（5）What is the best title for the passage'？
A． Breathing In and Out
B． Biking for Fresh Air
C． Survey from the Government，
D． China's Air Pollution Problem
Today，an increasing number of people are always looking at their mobile phones with their heads down．These people are called"Heads﹣down Tribe"（低头族）（72） ？Heads﹣down tribe members now can be seen everywhere．
（73） Also more and more interesting and strange facts happen to the"Heads﹣down
Tribe"．Let's have a look at an interesting TV report．A man in America kept using his mobile phone on his way home．As a result，he ran into a big lost bear on the street．When he lifted his eyes from the phone，（74） ．Another fact is that we can often see people in the restaurant eating face to face but looking at their own mobile phones．（75） ．Some of them even have fun communicating with others on the phone．
Mobile phones are helpful and necessary tools for modern life．Are mobile phones good or bad？（76） ．Let's be healthy users and try to be the"Heads﹣up Tribe．"
根据短文内容，从下列选项中选出填入空白处的最佳选项，选项中有两项为多余选项．
A．He was so scared that he turned around and ran away as quickly as possible
B．Are you a heads﹣up tribe member
C．Are you a heads﹣down tribe member
D．You may use mobile phones as often as possible
E．Using mobile phones may cause accidents and even cost a lot of money
F．It depends on how people use them
G．It's strange that they don't talk to the ones who sit opposite to them during the meal．
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