"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.
What will the world of tomorrow look like？Many people today believe that technology is going to help solve some of the most difficult problems we have on Earth today.New technology may solve old problems，and it may also create new ones.No technology is perfect.Each has advantages and disadvantages，as these three examples.
When we dream about the future，many of us think that we will be able to fly to the skies in our own personal flying car.We could fly at 480 km per hour，avoiding traffic lights and busy roads.However，if the cars become popular，there will be problems with traffic control.
3 D printing is another new technology for the future.3 D printers are already used to make life﹣size models of car parts，and man﹣made body parts，such as ears.As we move into the future，3 D printing will change the way we make things and the way we treat sick people.The disadvantage is that such a machine is very expensive.
Finally，people are trying to build a robot suit （套装）.This is an electronic suit.It allows people to lift heavy objects and walk a long way.It might help people walk again after an illness or an accident.However，one disadvantage at the moment is cost.
Looking ahead，it is easy to imagine a future.We will be able to fly to work，print out a new pair of shoes or lift a car above our heads.Although there are some problems to solve before all of this is possible，we can certainly dream of a world. In this world，technology makes people's life easier and safer .It can solve some of the most difficult problems we have today.
（1）、（2）题完成句子；（3）题简略回答问题；（4）题找出并写下第三段的主题句；（5）题将文中画线句子译成汉语。
（1）New technology may and may also create new ones.
（2）If the flying cars become popular，there will be problems with .
（3）What might the robot suit help people do after an illness or an accident？
（4）
（5）
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
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。
The traditional Chinese lunar calendar divides the year into 24 solar terms （节气）.It starts from the Beginning of Spring and ends with the Greater Cold，moving in cycles.It is still useful today to guide people's lives through special foods，cultural ceremonies and even healthy living tips.
Grain Buds（小满），the 8th solar term of a year，begins on May 21 this year，and ends on June 4.It means that the seeds （种子） from the grain are becoming full.During the Grain Buds，summer harvest is about to begin.A saying about rain during this time mentions， "A heavy rainfall makes the river full." Because of the great increase in rainfall，rivers are full of water.This is a good time to enjoy fish.It is also harvest season for fishermen.
Frost's Descent （霜降），the 18th solar term of the year，is the last solar term of autumn，during which time the weather becomes much colder than before and frost begins to appear.The apple is one kind of recommended（推荐的） fruit during Frost's Descent.There are many saying about apples' benefits（益处） in China，such as "Eat an apple after meals，even old men can be as strong as young men."
Minor Cold （小寒） is the 23rd one.For most areas of China，it marks the start of the coldest days of the year and people always start preparing for New Year.According to traditional Chinese medicine thoughts，people need to eat food that has more yang energy to prevent cold from harming their bodies.Another important traditional food for Minor Cold is Laba porridge （腊八粥）.
（1） is the last solar term of a year.
A.Minor Cold
B.Greater Cold
C.Frost's Descent
（2）How many days does Grain Buds last this year？
A.Thirteen.
B.Fifteen.
C.Seventeen.
（3）The underlined sentence "Eat an apple after meals，even old men can be as strong as young men." is closest in meaning to " ".
A.An apple a day keeps the doctor away.
B.It's more useful for old men to eat apples than young men.
C.If old men eat apples after meals，they will become younger and younger.
（4）In most areas of China，people always during Minor Cold.
①prepare for New year ②have Laba porridge
③say good﹣bye to the coldest days ④wear warmer clothes
A.①②③
B.②③④
C.①②④
（5）We can learn from the passage that .
A.it is necessary for people to take umbrellas with them during Grain Buds
B.Frost's Descent is the 8th solar term of a year
C.people need to eat food that has less yang energy during Minor Cold
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？
The world's highest highway tunnel（公路隧道），Mila Mountain Tunnel，was open to traffic on April 26，2019，at an altitude（海拔） of over 4，750 meters above sea level in Southwest China's Tibet.
The two﹣way tunnel is over 5.7 km long，which is a part of the 400﹣km highway connecting Lhasa with Nyingchi.People started building the tunnel on the5，018﹣meter﹣high Mila Mountain in 2015.And it was finished in 2019，helping shorten the 18﹣km distance（距离）over the mountain to 5.7 km.
It wasn't easy to build the highest tunnel in China.Terribly cold weather and too little oxygen（氧气）were two main difficulties.Besides，carrying everything to the building site（工地）was a great challenge for over 2，000 workers.
However，everyone at the site worked hard to finish building the tunnel on time and more than 10 latest techniques were developed while the workers were doing this great project. "We've worked here for several years and lived in simple houses， "said Xu Yong，the leader of the project. "Everything was so difficult，but we never fee sorry for ourselves here.It is a great project. "
The highway is an important way to the eastern part of Tibet.It can help to make more people visit Tibet and bring traffic convenience to local people.
（1）How long did it take to finish building the two﹣way tunnel？
A.About three years.
B.About four years.
C.About five years.
D.About six years.
（2）What CANNOT we know from the second paragraph？
A.How long the tunnel is.
B.Where the tunnel is built.
C.How high the Mila Mountain is.
D.What materials were used to build the tunnel.
（3）What does the third paragraph mainly tell us？
A.Why people wanted to build the tunnel.
B.How many workers worked in the construction（建设）of the tunnel.
C.What problems the workers faced when building the tunnel.
D.How the workers solved the problems of building the tunnel.
（4）What can we infer from Xu Yong's words？
A.It's worth putting much time and work into building the tunnel.
B.It took them many years to get used to living there.
C.They earned a lot of money by building the tunnel.
D.Their living and working conditions were not very bad.
（5）What's the writer's purpose in writing the passage？
A.To show the development of Tibet.
B.To encourage more people to travel to Tibet.
C.To introduce the altitude of the highway tunnel.
D.To tell something about the world's highest highway tunnel.
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.
On the early morning of December 17，the Chang'e﹣5 lunar probe （月球探测器） landed safely on the grasslands in Inner Mongolia，meaning the Chang'e﹣5 mission （任务） ended successfully.
Chang'e﹣5 was launched from the Wenchang Space Launch Center in Hainan Province on November 24，2020.On December 1，the probe got to the moon.During the stay on the moon，it collected 1，731 grams of rock and soil samples （样品）.On December 3，our national flag was shown on the moon.After that，the probe was ready to go home.
China is no stranger to lunar exploration （探月） programs.Over the years，it has sent a number of increasingly challenging missions to the moon.One of the most famous missions was the historic landing of Chang'e﹣4 spacecraft on the moon's far side in 2019.As Chang'e﹣5 reached a new area of the moon，this launch successfully pushed the limits （极限） even further.It's no doubt a great step forward for the space industry.
This is a truly historic event for China's space program，making China the third nation in the world to bring samples back from the moon.The success has also made Chang'e﹣5 the first spacecraft to bring back samples from the moon since 1976 when a Russian spaceship brought back 170.1 grams of samples to the earth.This was no easy task，but China has made it.
（1）How long did the whole Chang'e﹣5 mission last？
A.About half a month.
B.Around 10 days.
C.Over a month.
D.More than 20 days.
（2）The underlined word "launched" in paragraph 2 means in Chinese.
A.回收
B.发射
C.发明
D.销毁
（3）Paragraph 3 mainly talks about .
A.the importance of space exploration
B.the difficulty in lunar exploration
C.the future of China's space program
D.the progress in China's moon missions
（4）In which part of a newspaper can we find the passage？
A.CULTURE.
B.TRAVEL.
C.SCIENCE.
D.SPORT.
"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
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