完形填空
阅读下面短文，从短文后所给的A、B、C三个选项中选出能填入相应空白处的最佳选项。
Air pollution(污染) is a big problem. It's bad for all things on Earth，and it is not the only one kind of .Water pollution makes fish and pollutes our drinking water. Noise pollution makes us get more easily.
Many countries are making rules(规定) to fight against pollution. They try to stop people burning coal(煤)in the city and releasing(排放) dirty smoke into the .And if people use fewer cars，the air will get .
earth is our home. We must protect it and not destroy it. That is to say, we should keep the land, water and air .At the same time, we had better plant more trees they can provide a lot of things for us and make our earth beautiful.
A. living B. good C. dead
A. problem B. pollution C. air
A. die B. live C. run
A. happy B. angry C. excited
A. for B. against C. from
A. air B. ground C. trees
A. more dangerous B. worse C. better
A. An B. The C. /
A. clean B. dangerous C. healthy
A. so B. but C. because
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？
．
完形填空（共1小题）
“Low carbon”（低碳）becomes the most popular words these days because more and more people pay attention to our environment. Not only China but all other countries_______the topic of “low carbon”. Low carbon life _______a kind of lifestyle in which people do their best to use less energy. The purpose of the lifestyle is to push us to ________the environment.
______ the fast increase of population and human desire(欲望), the human living environment, health and safety are becoming ______. So we can say, the lifestyle is becoming the killer of the earth and human beings. Therefore, low carbon life is needed _______ man’s own health. So we should develop good habits in our daily life. For example, when we go shopping, we’d better use fewer plastic bags. We should eat more vegetables and less meat. As for clothing, we’d better buy the necessary clothes and _______ clothes with animal leather（皮革）. As for housing, when building a house , we must use green material, buy the lights that need less energy and remember to ________the lights when needed; put rubbish into different kinds and recycle the useful things, like bottles and paper. As for transportation, we can walk if you go to the places near your house. For short trips, we can ride a bike instead of driving a car. Try to use public transportation. As for working, companies should _____ clerks to use e-mail, MSN and other ways instead of using paper. We use paper only when necessary. For using computer : If you don’t use computer in a short time, you can change the computer into its “sleep”. Besides, everyone should try ______ best to tell the people around us the importance of the low carbon lifestyle. In all, it weighs greatly for all of us to put the low carbon lifestyle into practice.
A. belong to B. pay attention to C. depend on
A. helps B. means C. lives
A. keep B. pollute C. protect
A. Instead of B. Because of C. Because
A. better and better B. worse and worse C. good
A. by B. to C. in
A. not to buy B. to buy C. not buy
A. turn off B. turn on C. put off
A. make B. let C. encourage
A. ours B. we C. our
The Youth Climate Summit（气候峰会） a week﹣long festival of climate action for primary and middle schools in the UK，starts on 9 November.It aims to create a fairer，more environmental world and make promises that will help the planet.Climate change is the long﹣term changes in the world's weather patterns that are mostly caused by human activity. "Unlike world leaders， "say the summit's organizers. "young people are refusing to let it drop off the plan. "
Each day has a topic，which includes food and fashion，looking at how humans harm the environment and how to save the planet.Organizations are leading some on line activities.For example，the Marine Conservation Society is hosting meetings on protecting sea fish.Separately，the environmental organization Greenpeace is running a workshop on how to turn worn﹣out clothing into something new and wearable.
The summit will finish on 13 November，when youth ambassadors（大使）wants schools to stop paper waste.Max，another 16﹣year﹣old ambassador wants schools to organize more trips and activities that get students outside to experience the beauty of nature.As part of the summit，hundreds of schools across the country are signing up to the Let's Go Zero activity，aiming to become carbon﹣zero（零碳的）by 2030.
Carbon﹣zero schools are ones that promise to stop emitting carbon in seven areas，including where they get their food and how they use water and recycle their waste.The activity is run by Ashden，a charity working towards climate solutions.Ashden hopes that schools will be able to help each other by sharing ideas and methods.It is also calling on the Government to back the promise.Head over to transform﹣our﹣world.org where you can find out more.
（1）The writer develops the first sentence in Paragraph 2 mainly by .
| A． |
telling stories |
| B． |
comparing facts |
| C． |
giving examples |
| D． |
listing numbers |
（2）Max advises schools to .
| A． |
recycle and reuse old clothes |
| B． |
prevent students from wasting paper |
| C． |
have meetings on saving endangered sea fish |
| D． |
provide more chances for students to enjoy the nature |
（3）The underlined word " emitting" in Paragraph 4 is the closest in meaning to" ".
| A． |
using up |
| B． |
taking in |
| C． |
sending out |
| D． |
cutting down |
（4）The purpose of the passage is mainly to .
| A． |
explain the problems with climate change |
| B． |
develop children's ability to solve social problems |
| C． |
introduce the environmental organizations to schools |
| D． |
encourage young people to care more about climate change |
完形填空。（每小题1.5分，共15分）题由重庆名校资源库 刘微莉 编辑
根据短文内容，从A、B、C、D四个选项中选出一个能填入相应空格内的最佳答案，并把答题卡上对应题目的答案标号涂黑。
This years , computer games have become more and more popular in many cities and towns . A lot of small shops along busy have changed into game houses in order to get more money . These places are always crowded with especially young boys .
In the computer game houses , people a lot of money competing with the machines . It is for one to win against a computer , but one can make progress after again and again . People have a kind of gambling psychology（赌博心理）when they play computer games . The more they , the more they want to win , and at last they even cannot live if they don’t play with it . For school boys , they have no for their lessons . When class is over , they run to the nearby computer game houses . Some of them can get enough money from their parents . But some of them are not enough to get the money . they begin to take away students’ money and become thieves .
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Why is clean water so important to developing countries？A recent report shows that about 80percent of diseases in developing countries are caused by poor water and low sanitation（卫生）conditions．In those countries，women and girls spend several hours collecting water，but often polluted，far away from their families．The polluted water more or less influences their health．In this case，there is an urgent（迫切的）need for people in developing countries to have access to（有机会或权利使用）clean water to improve their health．
Here is a short story about Hadjara Zakari，a 12﹣year﹣old girl in Niger．Having access to clean water changed her life．She learned about the importance of hand﹣washing when the school first received clean water three years ago．That evening，she told her father，"You shouldn't eat with me unless you clean your hands．"Her father was very angry and shouted at her，"It's not up to you to tell me what to do!"Stunned（目瞪口呆的），Hadjara sat in silence．But she knew she was right．In protest，Hadjara refused to eat dinner that night．After her father questioned Hadjara's head teacher，he understood the importance of hand﹣washing and his daughter's intentions（目的）．The girl really wanted her family to live longer and healthier lives．
For people in developing countries，clean water can change many things，especially improve their health．So，from now on，let's avoid wasting water and take action to save water，which is important to people all over the world．
51．According to the recent report，poor water and low sanitation conditions can cause ．
A．traffic problems
B．forest fires
C．many illnesses
52．The key to improving people's health in developing countries is in Paragraph 1．
A．to get clean water
B．to exercise often
C．to refuse drugs
53．What can we infer（推断）from Paragraph 2？
A．Hadjara laughed at her father's foolishness．
B．Hadjara refused to eat dinner that night in order to lose weight．
C．Hadjara's father understood his daughter's love and care for him later．
54．The underlined word"protest"in this passage means ．
A．抗议
B．保护
C．节约
55．The purpose of the writer is to ．
A．teach people how to wash hands
B．call on people all over the world to save water
C．show developing countries rich in clean water．
The first note I ever wrote for my mother said“Hi，Mom！Have a nice day！Love，Marie！”．I was twelve when I wrote it，and I folded the into her change purse（零钱包）．
My mother worked as a cleaner in a clothing factory. I knew that when she meals in the dining hall，she would have to look for change in her purse. I didn't know that she would that note，and always carry it with her.
From the day that I folded the small piece of paper into my mother's change purse，she and I left each other notes. They would be put in the fridge，under a lamp，or beside the TV set. I found one hidden in my shoe. From the outside，our notes may have been general of our days，ideas and wishes. But to my mother and ，they were a lifeline-a communication with each other that no one else On October 20，2009，my mother died after a long illness. I stood near her bed， her hand. I didn't cry the day my mom died， I didn't cry a week later when I went to collect her things. I was so thankful that she no longer had aches and Recently，I found a note that my mom. had me．It had been hidden in the of my favorite childhood book for years. It read“Dear Marie，I love you always. Miss you a lot. Don't forget me. Be ！Love，Mom”That day，I cried.
A．note B．book C．diary D．letter
A．prepared B．gold C．bought D．cooked
A．forget B．keep C．lose D．pick
A．carefully B．wisely C．quickly D．carelessly
A．big B．funny C．secret D．beautiful
A．hardly B．never C．even D．seldom
A．programs B．courses C．excuses D．records
A．her B．me C．him D．us
A．shared B．believed C．promised D．remembered
A．reaching B．watching C．pushing D．holding
A．and B．but C．or D．because
A．gifts B．pains C．dialogs D．mistakes
A．lent B．sent C．passed D．left
A．lines B．poems C．pages D．pictures
A．serious B．happy C．patient D．strict
The Garbage （垃圾） Project started at the University of Arizona in 1973． Since then， the students and teachers in it have studied the modern garbage in different cities．
To study the garbage， the students had to travel to landfills （填埋场） ， the places where cities bury （填埋） their garbage． While the students were studying the garbage they wore special clothes． Students were very careful when they opened bags of garbage．
One important thing the students have learned from studying the garbage is that the garbage in landfills disappears very slowly． That was surprising to both the students and many scientists who had thought that about 70% of the garbage in landfills would disappear quickly． Even in cities where it rains a lot， the students found newspapers from 1948， 40﹣year﹣old hot dogs， and vegetables from 1970． And the students also found many more empty bottles of cola than they expected．
How to dispose of our garbage well depends on what kind of garbage it is： regular（普通的） garbage， dangerous materials， or recyclable materials， such as newspapers and glass bottles． Regular garbage goes to regular landfills． Dangerous materials are harmful to people's health and the environment． They shouldn't go into regular landfills．
Homes are full of dangerous waste． One kind of the dangerous waste in homes is batteries． When batteries are buried directly（直接地）in a landfill， they often break open． The poison inside them moves through rain water to the bottom of the landfill． Then it can pollute the natural water in the ground．
Another dangerous waste from homes is motor oil． When people pour old motor oil on the ground or throw it in the garbage， it pollutes the environment．
Our garbage problem is not new， but as the world's population continues to grow， it will become a bigger and bigger problem．
（1）The Garbage Project started at the University of Arizona in ．
A． 1973
B． 1970
C． 1948
D． 1940
（2）To study the modern garbage， the students had to do many things except ．
A． Wearing special clothes
B． traveling to landfills
C． burying the garbage themselves
D． opening bags of garbage
（3）The underlined words "dispose of" in Paragraph 4 means ．
A． crash into
B． deal with
C． worry about
D． put up
（4）From the article， we know old motor oil ．
A． should go to regular landfills
B． isn't harmful garbage
C． mustn't be poured on the ground
D． never pollutes the environment
（5）Which of the following is TRUE according to the passage？
A． There are only two kinds of dangerous waste in homes．
B． Scientists thought about 70% of the garbage in landfills would disappear slowly．
C． The students found empty bottles of cola were not as many as they expected．
D． Batteries often break open when they are buried directly in a landfill．
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.
The world uses about a thousand million （百万） tons of water a day． Water is a human right and everyone should have their share． Yet more than 700 million people around the world have trouble getting clean， safe water．
Treating wastewater is a good way to provide fresh water for us． And it also helps the environment by keeping waste out of rivers and oceans． 80% of wastewater around the world is not treated at all， and it is running into oceans．
But now we have got the technology to treat and reuse the wastewater．
While 75% of our planet is covered with water， only about 2% is fresh water﹣that comes from rivers， lakes， ice and snow． The rest， 98% of the water， is in seas and oceans． It is too salty to drink． Then desalinationbusinesses come in． More than 19.000 factories have been built around the world， mostly in coastal countries． They process（加工） more than 92 million tons of water every day． But the technology they use requires a lot of energy．
Scientists are working to create a less costly technology． They want to produce 20 times more clean water and make sure everyone has enough． But for now， the world still faces each day with not having enough water for everyone．
（1）How many people have trouble in getting clean water around the world？
A． Under 10 million．
B． Only 19 million．
C． About 92 million．
D． Over 700 million．
（2）Treating waste water helps the environment by ．
A． storing waste in ice and snow
B． letting waste run into oceans
C． keeping waste out of rivers and oceans
D． sending waste to coastal countries
（3）What does the underlined word "desalination" in Paragraph 3 mean？
A． 远洋运输
B． 潮汐发电
C． 食盐销售
D． 海水淡化
（4）At present， the technology to process water ．
A． needs much energy
B． saves much money
C． satisfies everyone
D． causes pollution
（5）What can we infer from the last paragraph？
A． Water should be a human right．
B． The water problem is still serious．
C． Our planet is covered with water．
D． Everyone has enough clean water．
In the year of 2020， the coronavirus（新冠病毒）out broke（爆发）all over the world． A lot of people suffered from（遭受……折磨）a fever or a cough． Don't be afraid． Here is some advice to help you protect yourself．
Wash your hands． You need to wash your hands with soap and water before you eat， after you use the toilet， and after you touch animals， because your hands may carry viruses （病毒）．Cover your nose and mouth． When someone sneezes（打喷嚏）or coughs，the viruses can travel as far as one meter through the air，so you'd better stand a proper distance while talking to someone who has a cold． And always cover your mouth and nose with a piece of paper when you sneeze or cough，and then clean your hands． Wear a mask（口罩）． Some doctors say that masks can stop the virus as much as 80%， but if you don't wash your hands often， it's no use wearing a mask． So it's necessary to wear the mask in the groups of people．
Do sports often． Exercises will help make your body strong enough to resist（抵抗）the virus．
How to protect yourself from the corona virus |
|
Wash your hands． |
● （1） you eat． ● After you use the toilet． ● After you（2） ． |
Cover your nose and mouth． |
● When someone sneezes or coughs， you'd better stand a proper distance while talking to someone． ● Always cover your nose and mouth with a piece of（3） when you sneeze or cough． |
（4） ． |
It's necessary to wear the mask in the groups of people． Masks can stop the virus as much as 80% |
Do sports often． |
Exercises will help make your body（5） enough to resist the virus． |
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． |
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