完形填空（10小题，每小题1分，共10分）
All living things on the earth need other living things to live with. Nothing lives . Sometimes one living thing kills . Each kind of life eats another kind of life live, and together they form a food chain(食物链). Some food chains are simple, while others are not. But food chains begin with the sun, and all food chains become if one of the links disappears.
All life needs sunlight to live on. But only plants can use directly(直接地). They make food from sunlight, water, air and so on. Animals can only use the sun’s energy it has been changed into food by plants. Some animals feed directly on plants. Others eat smaller animals. Meat-eating animals are only plants indirectly.
What about human beings? We are members of many food chains. We eat wheat, rice, vegetables, fruit and so on. We also eat meat and drink milk. But often break up the food chains. They kill wild animals. They also make rivers, lakes and seas dirty. When these rivers, lakes and seas are polluted, the fish in them be eaten. If people eat the fish, they will get strange diseases.
Each form of life is linked to all the others. Breaking the links puts all life in danger.
A．alone B．lonely C．together D．happily
A．other B．the other C．another D．the others
A．for B．so that C．and D．in order to
A．any B．all C．some D．most
A．better B．broken C．stronger D．nicer
A．moonlight B．laser light C．sunlight D．bright light
A．after B．before C．until D．by the time
A．making B．catching C．eating D．feeding
A．sunlight B．animals C．plants D．people
A．can B．cannot C．must D．needn’t
Tide is the regular rise and fall of the ocean level caused by the movement of the sun， the earth and the moon． It is considered a promising source of green energy to produce electricity in coastal areas．
To make use of tidal energy， we need to build tidal power stations． The bays and the river mouths where the tide is high（the tidal range is more than 10 metres） are usually perfect sites to build tidal power stations． There are many such places in the world． According to the IRENA （ the International Renewable Energy Agency）， by just using 2% of our coastlines， we can produce 4，383TWh of ocean power each year， enough to meet 16.4% of the world's electricity needs．
To build a tidal power station， we need to build a dam． In the dam are many turbines and on each turbine there is an electric generator'． When the tide rises，water comes through the dam，the turbines turn and the electric generators work， producing electricity．When the tide falls，water goes out through the dam， the turbines turn again．The electric generators continue to work．
Tidal energy has its advantages．Using tidal energy to produce electricity is much cheaper than using the traditional energy， like coal or gas． For example， the Rance Tidal Power Station in France has been there for over 50 years， producing around 5.000.000TWh of electricity each year． The cost is only 1.3 cents/TWh．
Tidal energy can be used nearly 24 hours a day． As long as the sun， the earth and the moon exist，we can use it to produce electricity． But without sunshine， there is no solar energy． When there is no wind，electric generators will not work． In addition， with the development of modern technology， tidal energy can be stored and used to produce electricity continuously．
However， we still have some problems to solve． It is difficult to build a dam in the sea， and the cost is very high．Moreover it's expensive to keep a tidal power station in its best condition．Scientists are working on them．
（1）A tidal power station is best built ．
A．at a river mouth with wind
B． along the coast with waves
C． In a bay with tide high enough
D．in coastal areas with sunshine
（2）The underlined word "turbine" in Paragraph Three is a machine to ．
A． make the tide rise and fall
B． make an electric generator work
C． let water go through the dam
D．keep the dam in good condition
（3）What advantage does tidal energy have？
A． We can use it to get useful tide．
B． It can improve the ocean environment．
C． We can use it nearly all the time．
D． It meets 16． 4% of the electricity needs．
（4）How can we make better use of tidal energy？
A． By digging more bays and river mouths．
B． By building cheaper tidal power stations．
C． By closing traditional electric power plants．
D． By using tidal energy to replace other energy．
完形填空（每小题1分，满分15分）
Colors have an effect on our moods. It has been found that colors like red, yellow and orange us while colors like blue, purple and green calm us. This relationship between colors and moods is not recently. Long long ago, Indian brides (新娘) were dressed in red as it represents and passion(激情). Now let us discuss the effect of each color on our moods . Blue is a calm color and it makes us feel relaxed. It can also make in factories work hard but too much of it can make us feel . Black represents power and . Thus, it makes you feel superior (有优越感的). It is generally by people who is not outgoing as it is a color. Green makes us feel , energetic and positive. It is relaxing said to improve vision (视力). Red represents strength, excitement and passion. While amount of red can help to make us feel energetic, of it can make us feel bored. White represents and peace. So wearing white makes us feel calmer. As colors have an effect on your moods, you need to choose those colors which would help you the tasks you are doing and you will get to see the difference.
A．bore B．excite C．interest D．tire
A．looked B．watched C．discovered D．ordered
A．sadness B．wisdom C．love D．growth
A．in danger B．in public C．in fact D．in detail
A．farmers B．scientists C．workers D．teachers
A．sad B．happy C．active D．creative
A．strength B．protection C．warmth D．energy
A．refused B．preferred C．hated D．borrowed
A．protecting B．bright C．calm D．satisfying
A．proud B．peaceful C．sleepy D．warm
A．but B．or C．so D．and
A．much B．some C．lots of D．few
A．much too B．too much C．too little D．many too
A．joy B．success C．purity D．stress
A．with B．on C．at D．to
Prepare for Water Day Zero
Last year，Cape Town said it was facing Water Day Zero．That was the date when the city's taps would go dry．It was first expected to arrive in April，2018． Thanks to hard efforts and a rainy season，it has been put off（推迟）．（1） ．And it may hit cities all over the world．
How did Cape Town get into a Water Day Zero situation？The city gets its water from six reservoirs（水库）．They usually fill up during the rainy season，from May through August．However，since 2015，the city had been suffering from its worst drought（旱灾）in a century．（2） ．Even worse，Cape Town's population grew greatly．As a result，the need for water rose．
（3） Because of climate change，serious droughts are becoming more and more common．At the same time，people are moving to cities．The United Nations says by 2050，two thirds of the world's population will live in cities．Since 2014，southeastern Brazil has been suffering from its worst water shortage in 80 years．In Mexico City，many of the 21 million people only have running water for half of the day．
Luckily，steps can be taken to avoid water crises（危机）．To start with，all of us can do something to save water and slow down climate change．（4） At the same time，water pollution must be stopped．
The world now has a chance to stop a series of Water Day Zero crises． If we don't act，many cities may soon face a time when there isn't a drop to drink．
| A．Cape Town is not alone． B．The serious situation seems to be improved． C．Water levels in the reservoirs became very low． D．Cities can build more water﹣recycling factories． E．However，the problem is very likely to appear again． F．More and more countries are paying attention to the problem． |
Much meaning can be carried clearly, with our eyes, so it is often ____ that eyes can speak.
Do you have such kind of ___? In a bus you may look at a stranger, but not too long. And if he ____ that he is being looked at, he may feel uncomfortable. The same in daily life. If you are looked at for more than necessary, you will look at yourself up and down, to see if there is ____ wrong with you. If nothing goes wrong, you will feel _______ toward the person who is looking at you that way. Eyes do speak, right?
Looking too long at someone may seem to be impolite. But sometimes things are different. If a man looks at a woman for more than 10 seconds, it may mean that he wishes to attract(吸引)her attention, to make her understand that he __ her. When two people are in a conversation, the speaker will only look at the listener from time to time, ______ make sure that the listener does pay attention ___ what he or she is speaking. Lovers will enjoy looking at each other or being looked at for a long time, to show something that ____ cannot express.
Clearly, eye contact should be done according to the relationship between two people and the place ____ you stay.
A．spoken B．said C．told D．talked
A．experience B．eyes C．mind D．news
A．found B．knew C．finds D．saw
A．anything B．something C．everything D．nothing
A．happy B．angry C．sad D．thankful
A．loves B．hates C．thanks D．looks at
A．in order the B．so that C．in order to D．for
A．for B．of C．with D．to
A．eyes B．words C．minds D．body
A．which B．that C．where D．there
When you have a cold，your friends can't visit you because they don't want to get a cold.When you are part of a family，if one of you gets a cold，often all of you get it.
（1） .Below are four ways to help stop a cold spreading and to feel better again.
●Wash your hands.
Washing your hands is the most important way to stop the spread of colds.Cold germs （病菌） are spread by touch.The germs get onto your hands and from there into your eyes，nose and mouth.Wash your hands carefully using soap and hot water.（2） ，they will be much less likely to get the cold.
●Cover your nose and mouth.
There is a saying that "coughs and sneezes spread illness". （3） when coughing and your nose if sneezing.That way，the cold germs won't get onto your hands and spread to things you touch such as doorknobs，tap handles or cups and plates.
●（4） .
Cold germs are spread very easily.You can use a disinfectant （消毒的） cleaner to clean doorknobs，taps，toilet handles.Be sure to use only your own towel，toothbrush and cup.
●Take care of yourself.
（5） .Eat healthy simple foods such as soup or rice.Get enough rest and sleep.Stay in bed，read a book.Do your schoolwork and practice your English!
Remember that a common cold only lasts a few days.You will feel better soon.
A.Some cold medicines can help stop aches and fever
B.Cold germs can be spread by coughing and sneezing
C.If all the members of your family wash their hands too
D.Always use a piece of soft paper to cover your mouth
E.When you wash your hands every half an hour
F.Clean your house
G.There is no good method of treating the common cold
Dolphins are mammals, not fish.Can dolphins talk? Maybe they can’t talk as human beings do, but they talk with sounds.They show their with sounds.
Dolphins travel in a group.We call a group of fish a “school”. They don’t like school children, but they travel to gether.
Dolphins talk to each other in the school. They give out different . They tell when they are happy or sad or afraid.They say “ ”. when a dolphin comes back to the school. They talk when they play. They can even make sounds above water.However, they make many more sounds under water. People hear these sounds because the sounds are very, very high. make tapes of the sounds and study them.
Sometimes people catch dolphins for a large aquarium(水族馆)。 People can watch the dolphins in a . Dolphins don’t like to be in an aquarium away from the sea.They are sad and lonely.
Dolphins are very friendly animals. Maybe you have heard some that people are saved by dolphins at sea.Dolphin meat is good, people don’t like to kill them. They say that dolphins bring good luck.
A．ideas B．feelings C．interests D．activities
A．study B．play C．hunt D．talk
A．help B．signs C．information D．words
A．Morning B．Good-bye C．Congratulations D．Welcome
A．not any B．a few C．few D．all
A．won’t B．don’t C．mustn’t D．can’t
A．Engineers B．Directors C．Scientists D．Zookeepers
A．show B．programme C．movie D．school
A．researches B．secrets C．accidents D．stories
A．so B．but C．though D．unless
October 16 is World Food Day． The UN started the day in 1979． Itis used to remind people not to waste food and to ask people to fight hunger（饥饿）．
A big member of people in the world still don't have enough to eat. Food shortage（匮乏） is a big problem in the world．Right now， there are more than 1000 million hungry people in the world according to the UN．Many children go to sleep， hungry and 15 million of them die of hunger each year．
There are several reasons why there are food shortages．First，there have been more droughts（干旱）and floods recently． Also， a growing population makes feeding everyone more difficult．
Another several reasons is food waste . Most people don't realize how much food they throw away every day． On avenge （平均），person throws away 50 kilos of food every year. According to the UN，more than 1/3 of all food produced in the word goes to waste each year． The amount （数量）of food wasted in Europe can feed 200 million people and the food wasted in Lain America can feed 300 million a year．
So think twice next time you want to throw away food． If you try to avoid wasting food， you could save some food and help hungry children. Only order as much food as you can eat at a restaurant. If you can't eat all you order， take the rest home．Don't be too picky about food so that you don't leave any on your plate . Keep eye on what food you have at home． Don't buy or cook too much．
（1）What does the underlined word "It" in Paragraph 1 refer to （指代）？
| A． |
Food shortage． |
B． |
|
| C． |
The U |
D． | |
| E． |
The year 1979． |
F． |
|
| G． |
World Food Day． |
H． |
|
（2）How many children die of hunger each year？
| A． |
10 million． |
| B． |
15 million． |
| C． |
20 million． |
| D． |
30 million． |
（3）What can we know from Paragraph 4？
| A． |
Food waste is serious in the world． |
| B． |
The population is growing fast in the world． |
| C． |
There are more hungry people in Lain America． |
| D． |
Half of all food produced in the world is wasted． |
（4）What should you do to avoid wasting food？
| A． |
Buy too much food at a time． |
| B． |
Order a lot of food at the restaurant． |
| C． |
Throw away the food you don't like． |
| D． |
Cook proper amount of food for each meal． |
（5）What is the best title of this passage？
| A． |
Let's save food to fight hunger |
| B． |
Give out food to hungry people |
| C． |
Fight against droughts and foods |
| D． |
Prevent children from getting hungry |
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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