Martin Strel is a swimmer，best known for swimming the world's big rivers.He was born in 1954.He taught himself to swim when he was six and became a professional （职业的） swimmer in 1978.Martin holds Guinness World Records for swimming the Danube River，the Mississippi River，the Yangtze River and the Amazon River.
Of all his achievements，the greatest is his Amazon River swim.The Amazon is known as the largest and most dangerous river in the world.Several swimmers had tried to swim it，but all failed.Martin decided to go all out and make history.He wanted to show the world that people could achieve their dreams with hard work and perseverance（毅力）.
On April 7th，2007，Martin Strel completed his Amazon River all the way from Atalaya （Peru） to the Atlantic Ocean at Belem （Brazil）.He struggled（奋战） with the river for 66 days and swam 3，274 miles in total.He became a worldwide hero.
Many people still cannot believe what he has done so far，so that is why they sometimes describe him as "Fishman"，"Human Fish" or even "the Craziest Man in the World".
In 2009，American filmmakers produced a documentary（纪录片）called Big River Man.And the book，The Man Who Swam the Amazon，has been sold in many countries.It tells us an inspirational story of perseverance and hard work，which has encouraged many people.
Martin doesn't swim for money.Instead，he swims to teach people about the importance of keeping water clean.
Martin has always bee looking for the challenges （挑战）of the impossible.What is his next？
（1）How did Martin learn to swim when he was little？
A.By watching his partners.
B.By learning from a coach.
C.By teaching himself.
（2）What is Martin's greatest achievement so far？
A.Swimming the Yangtze River.
B.Swimming the Amazon River.
C.Swimming the Mississippi River.
（3）What does the underlined word "inspirational "mean in Paragraph Five？
A.鼓舞人心的.
B.心灰意冷的.
C.栩栩如生的.
（4）According to the text，which is the purpose of Martin swimming the big rivers？
A.To make a lot of money for a good living.
B.To teach people the importance of keeping water clean.
C.To produce exciting documentaries and best﹣selling books.
（5）What can be the best title （标题）of the text？
A.Swim for Fun
B.Challenge the Impossible
C.Fight for Jobs
From an early age，we were taught that if we wanted to be successful，we had to study hard and get good results at school.In fact，good students may just end up doing jobs they don't like，and some even lead an unhappy life.Why is it like that？
In some parents' eyes，school grades matter most for their kids.In reality，there are many things to consider besides the school subjects，for example，how to be a happy person，what to do to keep healthy，and how to get along well with others.That is to say，school is not just enough if you want to have a great life.
Doing well in school is different from doing well in life.Studies show that people who failed at school may not end up failing in life.You may have already known that some famous people，like Thomas Edison and Steve Jobs，didn't do very well at school or even failed to finish school.In fact，there are a lot more than just the big shots who are successful in life without finishing school.They seize （抓住）every chance to learn and finally make it to the top.
Life is really a long lesson，so long that you can't define（界定）a person's success by just one section （部分）of it.If you have already finished school，keep learning because what you have learned at school will never be enough to live a satisfying life.If you are still studying，whether you are good or bad at school，don't take your school results too seriously as long as you have put your heart into it.Keep learning to make the most of your talents（天赋）.That's how you can live a happy and successful life.
（1）What's the writer's main purpose of writing Paragraph（段落）One？
A.To introduce a topic.
B.To give examples.
C.To provide a solution.
（2）In some parents' eyes，what's the most important for their kids based on Paragraph Two？
A.Being happy.
B.Staying healthy.
C.Getting good grades.
（3）What does the underlined expression "big shots" in the third paragraph mean？
A.好学生.
B.神枪手.
C.大人物.
（4）According to the passage，which sentence may agree with the writer's idea？
A.It takes money to be successful.
B.School grades aren't everything.
C.Successful people never finish school.
（5）What can we infer （推断） from the text？
A.Old habits die hard.
B.Leaning is a lifelong journey.
C.Good grades always promise a successful life.
My name is Alice Black.I am thirteen years old，and I come from Mount Elm Sheep Station in South Australia.I have got two sisters﹣Jenifer is eleven and Lisa is seven.We are all pupils at the School of the Air.
The School of the Air is a school for children who live far from the cities，and who are in a place which does not have a local school.So we have "air" lessons over the radio or on the computer.Our teachers are at Port Augusta，a city which is about 160 kilometers away.
In the morning，we go to our school at 8：45. △ When we get there，we turn on the radio or computer and listen to what we should do.From then until twelve，we just do our usual lessons.In the afternoon，our mum makes us do some homework﹣﹣well，not homework，but more work around the house.
We send our exercise "books" to our teachers by email on Friday night.They mark them on Monday and Tuesday，and then send them back.We get them on Wednesday.
The Internet and the telephone help us get in touch with our teachers quickly and easily.We talk to our teachers once a week for about ten minutes.They tell us if we are making progress.Next year I will start at a new school in Port Augusta.I will spend the weekdays there and come home at weekends.It will be good to be with teenagers of my age，but I will miss my family.I hope I will be happy there.
（1）From the passage we know that .
A.the Black family is very poor
B.the Blacks lives far from Port Augusta
C there is a small local school near the Black family
（2）Which sentence can best replace"△"in the passage？
A.It is really just a small building.
B.What fun it is to go to school
C.It is really an early time.
（3）In the 4th paragraph，the underlined word "them" means in Chinese.
A.课本
B.作业
C.课程
（4）What do the teachers probably say to their pupils on the phone？
A.Do you have any suggestions about our lessons？
B.Will you come to our school in Port Augusta？
C.How are you doing with your lessons？
"Colour" and "color"， "favourite" and "favorite"， "honour" and "honor"…Have you ever wondered why Americans spell those words without a "u"？Is it because they are lazy？
Of course not.In fact，the difference in spelling was started by Noah Webster（1758﹣1843）.He was a teacher who reformed（改革）English to make American identity（特征）stronger.Linguists（语言学家）celebrate his birthday on October 16 every year.
After the Revolutionary War（1775﹣1783），Webster believed that Americans should have their own dictionary，rather than rely on British dictionaries.
He dropped the British "u" in some words.And he changed "centre" into "center" for children to learn English by spelling words more like what they sounded.He used "subway" instead of British word "underground".Some other examples are "soccer" and "football"， "fall" and "autumn".
Webster wasn't shy about expressing his opinions.In defining（定义）preposterous （unreasonable），he wrote： "A republican government in the hands of female is preposterous."
Webster spent 28 years on the project before completing the 70，000﹣word dictionary with his American﹣style spelling in 1828.He also added local words.
His dictionary was widely used in schools.Linguists believed it helped a new country achieve unity（统一）and cultural independence at a time when most people cared about political freedom.
"He was the creator of our language and the creator of American identity，" said Joshua Kendall，who is working on a book about Webster. "He at last brought us together through our language."
（1）Why do Americans spell some words without a "u"？
A.Because the Americans are very lazy.
B.Because the American English developed when people used it.
C.Because the American government reformed the spelling of words.
D.Because a linguist named Noah Webster started the reform in spelling.
（2）Which is NOT true about Webster's dictionary？
A.It has local words in it.
B.It is a 70，000﹣word dictionary.
C.All the words are spelled without "u".
D.Its words are in American﹣style spelling.
（3）What does the underlined phrase " rely on" in Paragraph 3 mean？
A.依赖.
B.信任.
C.容忍.
D.放弃.
（4）What do people think of Webster's dictionary？
A.It is the only dictionary that Americans still use today.
B.It helped to bring Americans together besides its cultural influence.
C.It has no influence on the development of American English.
D.It helped to make American English more useful than British English.
（5）What's the main idea of the passage？
A.The development of the British English.
B.American English is better than British English.
C.Noah Webster added local words to the dictionary.
D.Noah Webster wrote an American English dictionary and reformed English.
Each of us has dreams and goals for our future.What makes us study and make progress each day is closely connected with our personal dream and goal.
But why do you have dreams and goals，you still end up with nothing？What separates successful people from the dreamers is their persistent （锲而不舍的） action.When you learn your lessons in school，you must work hard and not give up.You will often find some of your lessons very hard.Try and keep trying，and you'll be sure to successfully deal with any difficulty you meet with.If we have a hard lesson today，let us try our best to learn it well and then we shall be prepared for a harder one tomorrow.
This is the famous formula（公式） for success：
Dream ＞ Believe ＞ Achieve
Most people have what they want （Dream） and think they can realize their dreams （Believe）.And then they do nothing.They just imagine their dreams can come true.When they get tired waiting and lose a lot，they get bored.They say angrily how terrible their life is.
I personally believe that if you really want to achieve your dreams and goals in life，you have to add one thing to your success formula：
Dream ＞ Believe ＞ Act ＞ Achieve
For me，act is the most important thing for success and that's to Take Persistent Action （Act）.If you say， "I can't do it" and give up，you can never do anything valuable.However， "I'll try" creates wonders.Let's remember that there will be obstacles in our life.We must face them bravely and solve them.Success is not something that falls down from the sky.Most successful people made their dreams come true because of their persistent action.
Please remember：Action is the bridge that connects our dreams and goals to reality.
（1）What should you do when you find your lessons very hard？
A.Ask people for help.
B.Try and keep trying.
C.Get ready to create wonders.
D.Prepare for a harder one.
（2）Which does the writer add to the famous formula？
A.Act.
B.Achieve.
C.Connect.
D.Create.
（3）What does the underlined word "obstacles" mean？
A.Dangers.
B.Imaginations.
C.Wonders.
D.Difficulties.
（4）Why does the writer use the formula "Dream ＞ Believe ＞ Act ＞ Achieve"？
A.To support his idea.
B.To ask readers to explain it.
C.To show what his goals are.
D.To compare it with a bridge.
（5）Which of the following can be the best title for the passage？
A.Doing Something Valuable
B Studying Hard and Making Progress
C.Realizing Dreams with Persistent Action
D.Separating Successful People from Dreams
Once there was a small boy called Shankar who belonged to a poor family.
One day，he was walking through the forest，carrying some wood.He saw an old man who was very hungry.Shankar wanted to give him some food，but he did not have any food with him.So he continued on his way.On the way，he saw a fox who was very thirsty.He wanted to give him some water，but he did not have any water for himself.So he went on his way ahead.
Then he saw a young man with a dog who wanted to make a fire but did not have wood.Shankar learned about his problem and gave some wood to him.In return，the man gave him some food and water.Now he went back to the old man and gave him some food.Then he found the fox and gave some water to him.The old man and the fox were very thankful for Shankar's help.Then Shankar went on his way happily.
Unluckily，one day Shankar fell down the hill.He was in pain but he couldn't move and no one was there to help him.But the old man who he had helped before saw him，and quickly came and pulled him up the hill.Shankar had many wounds on his legs.The fox whom Shankar had given water to saw his wounds and quickly went to the forest and brought some herbs.The old man helped to put the herbs on Shankar's wounds.After some time，Shankar got well.All were very happy that they were able to help each other.If you help others，then they will also help you.
（1）What did Shankar carry when he walked through the forest？
A.Wood.
B.Food.
C.Water.
D.Herbs.
（2）Who gave Shankar food and water？
A.The old man.
B.The young man.
C.The fox.
D.The dog.
（3）What's the meaning of the underlined word "herbs" in Chinese？
A.鲜花.
B.野果.
C.药草.
D.毒虫.
（4）Which of the following could be the best title for the passage？
A.Help each other.
B.A fox may help you.
C.Don't believe the stranger.
D.Food and water are important.
"Mom!I found one!I found a rock!"
I heard those words again and again last summer as I sat by the window，which faces a park in the small town where I live.
The Kindness Rocks Project，which was started a few years ago by a mom in Massachusetts，has spread around the world.Kids，families，and people of all ages are taking part in painting rocks，hiding rocks，and finding painted rocks all over the place.Some post photos of the rocks on social media （传媒），and others simply move the rocks for someone else to find.Some take the rocks home and then replace them with new ones that they created and hid.
Nine﹣year﹣old twins Harry and Hannah DeVrieze have painted hundreds of rocks with their parents.Most evenings，the family and their small dog walk around with a wagon （运货车） full of rocks that they hide as they walk.
"It's a fun family activity，" Hannah says.
"We will do it in the winter too，" Hannah says.
Ben Burinsky，age nine，and his brother，Luke，age seven，were visiting relatives （亲戚） when they found their first painted rock in a park.They were so excited that they went home and painted their own rocks，then hid them for others to find.
"My boys loved finding the rock in the park，especially since it was a superhero，" their mother，Judy Burinsky，says. "I love how something so small can bring a smile to my children's faces.In return，they learn the value of giving back to others."
Kadyn Kinney，age nine，and his seven﹣year﹣old brother，Jayce，have also painted many rocks.They love to hide rocks and look for rocks with their mom and dad.When their grandmother visited，they gave her painted rocks to take home and hide in the Florida town where she lives.When asked how many rocks he has painted so far，Jayce says， "Trust me!I've painted more than 30."
（1）The activity was started in .
A.New York
B.Florida
C.Massachusetts
（2）How old is Harry？
A.7.
B.9.
C.10.
（3）What does the underlined word "value" in Paragraph 8 mean？
A.价值.
B.价格.
C.代价.
（4）Jayce has painted more than rocks.
A.14
B.18
C.30
（5）What is the main idea of the passage？
A.The kind people.
B.The Kindness Rocks Project.
C.The painted rocks.
If you've ever walked through fog （雾），you might have noticed that your skin and hair get wet.This is because fog is made of tiny water drops.Scientists are helping people collect these drops to make drinking water.
In some towns，there is no fresh water.People there have to use trucks to carry fresh water. It is expensive.
Since rain falls to the ground，it can easily be collected into tanks （水箱）.But the water drops that make up fog don't hit the ground.Instead，they float （漂浮） in the air.To turn fog into water，you have to catch the water drops.
A fog catcher is made of nets with two posts.The nets are usually set up on a hilltop.As fog passes by，the nets catch the water drops.The drops run down the nets and into channels.The channels lead the water into large tanks where it can be stored.A fog catcher can collect 10，000 liters of water a day.Scientists have helped set up fog catchers for towns in Chile，Nepal and Mexico.
Fog catchers are a great way for people in small and lonely towns to have their own fresh water.Centuries before scientists created fog﹣catching nets，nature was making fog into water on its own.As fog passed through the mountains，large leaves got the drops just like the nets do.People learned to drink the water collected on the leaves.Thanks to modern fog catchers，enough water can be made for a whole town!
（1）What does the word "It" in Paragraph 2 mean？
A.Trucks' carrying.
B.Rain collecting.
C.Fog catching.
（2）What is a fog catcher made of？
A.Tanks.
B.Leaves.
C.Nets.
（3）A fog catcher can collect of water a day.
A.1，000 liters
B.10，000 liters
C.11，000 liters
（4）Centuries ago people learned to drink the water collected .
A.in channels
B.on the nets
C.on the leaves
（5）What can be the best title of the passage？
A.Catching Fog.
B.Catching Rain.
C.Catching Snow.
Florence Nightingale was born on May 12th，1820.In 1851 she trained as a nurse.Two years later she went to a British military（军事的）hospital so that she could help British soldiers.Before she arrived，many soldiers died in the hospital because it was dirty.Nightingale worked hard to make the hospital clean and stop soldiers dying.When she returned to England in1856，she was a national heroine.Nightingale wrote two books about nursing and she also started a school to train nurses.She died in London on August 13th，1910，when she was 90 years old.
（1）What was Florence Nightingale's job？
A.A nurse.
B.A soldier.
C.An artist.
（2）How many books did she write？
A.One.
B.Two.
C.Three.
（3）Which of the following is NOT true about the article？
A.In 1851 she went to a British military hospital.
B.In 1856 she returned to England.
C.In 1910 she died in London.
（4）What would be the best title for the article？
A.A British Soldier.
B.A British Military Hospital.
C.A Famous British Nurse.
阅读下面的短文，从每题所给的A B、C三个选项中选出最佳选项回答问题或完成句子。
An international expo（ 产品博览会） on big data （数据） opened on Wednesday in southwest China's Guizhou Province，showing the newest scientific and technological creations and achievements in the relevant area，May 26，2021.
Big data （数据） is a lot of sets of information that are put together so they can be used by a computer program.The computer program looks for different kinds of answers or patterns in the data.Big data can have different kinds of information that comes from schools，social media sites，companies，and governments.One set of data can have people's names and addresses.Another set can have what they like，where they go to school，and how much time they spend on the computer.
President Xi Jinping called for China to speed up its big data strategy（成略） in order to better serve social and economic（经济） development and improve people's lives.In the past few years big data has been used more often in China.The government uses it to understand how many people travel on buses or trains.The information is then used to make bus or train systems better.
Some schools use big data to understand which children may need extra（额外的） help in class.The teacher can give certain students more help or support so those students can succeed in school.The role it plays in tourism is another example.The data travelers share online is offering the tourism industry a lot of information about the country's scenic areas（景区）.After the data is analyzed（分析），different scenic areas can create their own online information for other travelers to see.The information not only tells travelers' reviews，but also tells the scenic areas where services need to be improved.
（1）The international expo big data probably opened in .
A.Hengyang
B.Guiyang
C.Shenyang
（2）What does the underlined word "they" in Paragraph 2 refer to ？
A.Computer programs.
B.Social media sites.
C.Sets of information.
（3）Which purpose of speeding up big data strategy is NOT true according to President Xi Jinping 's opinion？
A.To better serve social and economic development.
B.To improve people's lives.
C.To protect the environment.
（4）Some schools use big data to according to Paragraph 3.
A.find out how many students travel on buses or trains
B.help students in need
C.offer students information about the scenic areas
（5）We can read the passage .
A.on a movie poster
B.In a story book
C.on a news website
When we first moved here，we didn't have a garden.Mike and I talked about making a large vegetable garden somewhere in our yard，but we couldn't agree on where.Before we went ahead and dug up the grass，we spent some time thinking about where it would work best.At last，we chose an old sandbox（沙坑） in our front yard to become our garden.
We dreamed about a lively garden with lots of vegetables.We asked many people what we should do to turn this sandbox into a space，then plants can grow in it.And they gave us lots of ideas.My sister was the most knowledgeable，so we listened mostly to her.At first，Mike made a wood fence（栅栏）and I painted it with the kids.We chose a darker color because it would fit our light grey house.
Next，Mike dug 17 holes.Then we filled them with soil（土壤）.It was still too cold to plant anything，so for days I just stared out the window at these holes.To me，it looked much too untidy.I advised to fill those holes back and dig new ones.This time we ended up with 10.Much better.
Over the next few weeks，I worked on getting everything planted in my garden.I started by planting green onion.But I was too excited and planted it too early.Right away it was clear that it wasn't going to survive.I had to give it up and try something else.Then my next door neighbor gave me red roses to put in my garden.A few days later we went to a greenhouse and came back not with green onion but peppers，tomatoes and so on.Clearly the vegetable and flower garden was slowly becoming our dream garden.Oh well!
I love the way it turned out.This garden will always remind me of my sister.
（1）When the writer first arrived at her new house，she .
A.had a large flower garden
B.dug up the grass in her yard
C.talked about making sandbox
D.wanted a garden with vegetables
（2）Why did the writer suggest filling the first 17 holes back？
A.Because she listened to her sister.
B.Because the weather was to cold.
C.Because the garden looked like a mess.
D.Because the kids could dig better ones.
（3）What's the Chinese meaning of he underlined word in Paragraph 4？
A.存活.
B.传播.
C.嫁接.
D.爬藤.
（4）Which one is the right order of building the garden according to the passage？
a.We built the fence and painted it.b.We collected much others' advice.
c.We prepared the plants that we wanted.d.We decided on the place of the garden.
e.We dug several holes and filled them with soil.
A.b﹣d﹣a﹣e﹣c
B.d﹣b﹣a﹣e﹣c
C.d﹣e﹣c﹣a﹣b
D.b﹣a﹣d﹣e﹣c
（5）What does the passage mainly tell us？
A.Why was the writer thankful to her sister？
B.What did the family plant in their garden？
C.How did the family make their dream garden？
D.Who spent time with the writer in the garden？
Henry was going through a very hard time.His wife passed away one month ago.He thought his life became meaningless.Henry sat in his house sadly and did nothing.
One day，Henry's neighbor，Lisa，saw him from her yard.She hadn't seen him outside for several days!She wanted to help Henry.Then she had an idea.
Lisa said to Henry， "Hello，Henry!Just look at this fence（篱笆）between our houses.It is falling apart.You are a strong man.Can you help fix this fence？"
After hearing Lisa's words，Henry was a little angry.He didn't want to help her.He thought he was the one who needed help.He thought Lisa was kind of rude.However，he agreed to help Lisa because Lisa was too old to fix the fence herself.
Henry spent a few days fixing the fence.When he finished，Lisa thanked him.Henry gave her a smile.It was his first time to smile after his wife passed away.
"What a wonderful job!Could you please paint it for me？" Lisa said to him.Henry thought for a while and agreed.Then he began to paint the fence in the hot sun.As his neighbors passed by and saw Henry，they all praised Henry for what he was doing.Henry felt happy and proud.He felt his life was not meaningless any more.
Henry finally understood Lisa's purpose.She wanted Henry to know that staying busy could help him forget his sorrow（悲痛）.Henry thanked Lisa a lot.
（1）Which of the following shows how Henry's feelings changed over time？
A.Happy→thankful→bored→sad.
B.Sad→angry﹣ happy→thankful.
C.Sad→happy→thankful﹣→sad.
D.Happy→upset→thankful→happy.
（2）How did Lisa help Henry forget his sorrow？
A.She wanted him to get to know more neighbors.
B.She asked him to do some things to make him busy.
C.She encouraged him to make friends with other neighbors.
D.She advised him to find a new part﹣time job in his free time.
（3）Which words can best describe Lisa according to the passage？
A.Silly and lazy.
B.Rude and lazy.
C.Clever and helpful.
D.Patient and hard﹣working.
（4）What does the writer mainly want to tell us？
A.Staying busy can help us forget our sadness.
B.We should help others at any time.
C.It is hard to make friends with neighbors.
D.Asking others for help isn't rude.
"Oh，boys，don't throw stones at the poor bird，" said an old grey﹣headed man.
"Sir，" said a little one，"she makes such a loud noise that we can't bear her."
"I am afraid the stone will rebound （反弹） and hurt you as long as you live!"
"Rebound!We don't understand you，sir!"
"Well，I will tell you a true story.
"Fifty years ago，I liked throwing stones because I had no other boy to play with and I became very skillful.One day I went to work for an old couple who were very friendly to everybody，even to the birds.And the birds seemed to love the old couple，too.For seven years a bird had come and built her nest （鸟巢） in the same place.She and her mate had just returned on the day I went to work and the old couple welcomed them happily.During the day，I thought I would try my skill upon her.Suddenly the bird flew to a tree near me.I found a nice stone，and I threw it with my best skill.It hit the bird on the head and she dropped dead！
"I was sorry the moment I saw her fall off the tree.But it was too late.All day long her mate flew about，and chirped （发啁啾声） so sadly that he made my heart ache..I said nothing to the old couple but one of their grandchildren told them about it.Though the old couple never said a word to me，I knew that they were very sad.I could never look them in the eye and tell them how sorry I was.They have been dead for many，many years，and so has the poor bird.But don't you see how that stone rebounded，and hit me？For fifty years I have still remembered it though I have never spoken of it before.But if what I have told you will stop you，I will be happy."
The boys at once dropped the stones in their hands and the bird had no more trouble from them.
（1）Why did the boy throw stones at the bird according to what the little boy said？
A.Because they wanted to catch the bird.
B.Because they thought the bird was noisy.
C.Because they wanted to practice their skills.
D.Because they thought throwing stones was fun.
（2）Which word can best describe the old couple？
A.Kind.
B.Strict.
C.Proud.
D.Funny.
（3）The underlined word "They" refers to .
A.the birds
B.the old couple
C.the boys
D.the grandchildren
（4）How did the old man stop the boys from throwing stones at the bird？
A.By driving away the bird.
B.By taking away their stones.
C.By playing jokes on the boys.
D.By telling the boys his own story.
（5）What can we learn from the text？
A.Don't hurt others，or you will hurt yourself.
B.Try to save others and you will feel happier.
C.Keep practicing and you will be very skillful.
D.Don't waste time，or you will achieve nothing.
Can plants talk？Modern research has found something amazing：they do communicate with each other.
It has been known for some time that plants use chemicals to communicate with each other.This happens when a plant gets attacked by insects.The plant gives out chemicals from the leaves that are being eaten.This is like a warning，or a call for help："I'm being attacked!"When another plant gets the chemicals，it starts to give out its own，different chemicals.Some of these chemicals drive insects away.Others attract the wasps （黄蜂；蜜蜂）!The wasps kill the insects that are eating the plants.Scientists hope to learn more about this plant warning system，so that we can use it to grow more crops.
More surprisingly，plants also use sound to communicate.People can't hear these sounds，but plants are making them.Some plants make noises with their roots.Corn and chili plants do this.Some trees make clicking noises when there is not enough water.
Most surprisingly of all，plants have an amazing system of communication that can link nearly every plant in a forest.Scientists call this system the "wood wide web".The wood wide web is linked underground by fungi （霉菌）.It links the roots of different plants to each other.It is in some ways similar to the Internet we use.Using the wood wide web，plants can share information and even food with each other.However，it may lead to bad effects.Plants may use it to steal food from each other，or spread chemicals to attack other plants.Perhaps one day scientists will learn how to create a "firewall" to help prevent these attacks within the wood wide web.
Scientists are learning more every day about the secret ways in which plants talk to each other.Maybe one day we will know enough about plant communication to be able to "talk" with them ourselves.
（1）What will plants do when they are attacked by insects？
A.They will kill the insects by themselves.
B.They will control the wasps to kill the insects.
C.They will send out signals to ask for help.
D.They will produce chemicals as a warning or a call for help.
（2）How are the wood wide web linked by fungi？
A.By making noises with their roots.
B.By connecting the roots of different plants to each other.
C.By sharing food and information with each other.
D.By spreading chemicals to each other.
（3）What is the writer's intention of the last paragraph？
A.To give people hope for further studies.
B.To praise scientists for their great achievements.
C.To call on people to protect the plants on Earth.
D.To inspire people to communicate with plants.
（4）What is the structure of the passage？
A.
B.
C.
D.
（5）Which is the best title for the passage？
A.The Secret Language of Plants
B.The Study about the Plant Warning System
C.The Plants that Give Warnings
D.Why Scientists Do Research about Plants
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.
试题篮
()
粤公网安备 44130202000953号
