A small cloud moves slowly through the air in a hospital operating room （手术室）.In the room a patient with cancer（癌症），lies on a table.The cloud is all around the patient，covering her body and filling her lungs（肺）.The cloud is not smoke.It is made of millions of nano﹣robots（纳米机器人）.These tiny robots move from cell （细胞） to cell in the patient's body，killing the cancer.
Fighting cancer with nano﹣robots is only an idea today，but scientists say that it could be possible in the future.Using nano﹣robots for good purposes such as fighting the illness or repairing the environment may be the way to many of today's problems.
However，nano﹣robots could be a dangerous risk as well.Because nano﹣robots are so tiny，they will have to work in large teams of many thousands to many millions.For this reason，nano﹣robots will have to be programmed（被编程）to build themselves.Scientists will not have the ability to build millions of nano﹣robots one by one.
This ability to re﹣produce is making some scientists worried.What will happen if something goes wrong in the programming？Quite a lot of crazy nano﹣robots would be far worse than any illness.Some people think that if they get out of control，nano﹣robots could make the Earth gone.
What should be done？Should we continue researching nano﹣robots or should we search for other methods？This is one of the many difficult decisions that we have to make in the future.
（1）What is the cloud in the passage？
A.Smoke in the air.
B.Millions of nano﹣robots.
C.Something full of drops of water.
D.Clothes to cover a patient.
（2）What does the underlined word it in Paragraph 2 refer to（指代）？
A.Fighting cancer with nano﹣robots.
B.Moving from cell to cell.
C.Killing the cancer.
D.Repairing the environment.
（3）Which of the following is NOT the reason why some scientists are worried about using nano﹣robots？
A.Nano﹣robots have the ability to build themselves.
B.Something may go wrong in the programming.
C.Scientists have to build millions of nano﹣robots one by one.
D.Nano﹣robots in large teams may be out of control.
（4）What does the writer think of using nano﹣robots in the future？
A.He agrees to the idea.
B.He disagrees to the idea.
C.He doesn't talk about his own opinion.
D.He is crazy about it.
（5）What is the best title？
A.Future Robots
B.The Ways to Fight Cancer
C.Nano﹣robots in Use
D.A Cloud of Hope and Danger
You may study differently from your friends，but your study habits are not wrong!
Kelly and Maria are best friends with a lot in common.They love doing things together，such as going to movies and concerts，shopping，or just sitting at a small cafe.Since they take a lot of the same school subjects，they would love to study together，but they find this impossible.Their working styles are so completely different that they can't be in the same room while they are studying!
Kelly would like to study in a clean，open space，while Maria works best with books，papers and other things around her.Kelly prefers to study in a totally silent room，but Maria loves to play music or even have the TV on.Kelly can sit for hours without moving，and often gets all her homework done in one sitting.Maria，however，is always getting up，and says that she thinks best when she's on the move.
You might be asking yourself：which way of studying gets better results？Many people believe that a silent，tidy setting（环境）is the way to go，▲.Some research has even shown that outside noise and untidiness help some people focus（聚焦）their attention，because it makes them form a "wall" in their mind around what they are doing and improves their focus.
So，if you're a student who chooses to study while sitting at a table in a busy shopping center，don't worry about it.If you work in total silence，that's OK，too.Judging from Kelly 's and Maria's study habits，the best way to study is the way that works for you.In their very different ways，both of them do well in school，and both finish their work within the required time as well.
（1）Kelly and Maria are mentioned as an example in this passage to .
A.discuss two different study habits
B.compare the differences in their hobbies
C.show the importance of a good study habit
D.express the writer's worry about their friendship
（2）Which of the following is the best to fill in the blank in Paragraph 4？
A.and they have difficulty in study
B.and it can be true for most of them
C.but that doesn't seem necessarily true
D.but nobody does research on this question
（3）What can we infer from the last paragraph of this passage？
A.Students who like to study in silence will be more successful.
B.Both study habits can help students make progress in their studies.
C.Only a small number of students can study well in a noisy situation.
D.Friends with different study habits can do better by studying together.
（4）What can be the best title for the passage？
A.Are you studying the "right" way？
B.How can you improve your study habits？
C.Is it possible for friends to study well together？
D.What are the advantages of different study settings？
Li Zixuan is a junior middle school student.He is now studying in Grade 9.He has had many dreams since he was little.But as time goes by，some new dreams have appeared and some old ones have disappeared.However，only one dream is still in his mind.
Li Zixuan says that when he was a child，he heard about rockets and spaceships.At first，he didn't know what they were.From his father，he knew that scientists make rockets to carry things into space，and spaceships are used to carry people through space.From then on，he has had a real interest in space.Every time he sees beautiful stars and the moon in the sky at night，he gets every excited.He is always dreaming that he can fly to space to look at the early one day.His mother knows about his dream and of the encourages him.
In school，Li Zixuan learned that the first man flew into space in 1961 and later，more astronauts succeeded in traveling into space.Some astronauts even landed on the moon.His teacher always encourages him to learn more.He knows not everyone has a chance to travel into space.More importantly，before he can fly to space，he must be trained specially.
Li Zixuan knows it's not easy to achieve his dream，but he decided to try his best.He says， "I've had this dream for many years.it has brought me a lot of joy and always gives me power.Even if it doesn't come true in the end，I won't be sorry."
（1）What does the boy want to be when he grows up？
A.A scientist.
B.A pilot.
C.An engineer.
D.An astronaut.
（2）Who told the boy something about rockets and spaceships？
A.His father.
B.His mother.
C.His teacher.
D.His friend.
（3）What must the boy do before he can fly to space？
A.Study very hard.
B.Get a driving licence.
C.Do exercise every day.
D.Get some special training.
（4）What's the best title（标题） for the text？
A.Dream of a Boy.
B.The Love of a Father.
C.An Excellent Hobby.
D.An Unusual Experience.
If we want to grow as people，we can't just depend on our own evaluation（评价）of how we're doing.We also need to know what other people think about our performance.Receiving feedback（反馈）from others can help us see the larger picture and show us a way forward to success.However，someone has to give that feedback，and sometimes，that someone will be you.How should you deal with this？
First things first-if you notice a situation in which some feedback would be helpful，give it as soon as you can.If you wait until the matter disappears from the person's mind，they might not understand what you're trying to tell them.Take the person to a safe，comfortable place and offer your advice in private.
When you're giving feedback，it's important to keep in mind that no one likes to be told they're doing a bad job.Make sure you give an equal（相等的）amount of good feedback to balance out（平衡）anything bad.Like the saying goes， " A spoonful of sugar helps the medicine go down."
All good feedback shares something in common.First，it should help achieve a goal.It's less useful to tell your friends that their dish tastes "interesting" than it is to suggest adding a little salt.Feedback should also look toward the future.You can't change what's already happened，but you can prevent it from happening again.Tell your friends they should take more notes in class instead of talking about how they should have studied harder for the big history exam they failed.
Finally，don't think your suggestion is the only correct way to deal with a situation.You might even end up with some feedback on your feedback.Don't take it personally﹣﹣it can only help you give better advice next time.
（1）What does the underlined word "this" in Paragraph probably mean？
| A． |
Seeing the picture. |
| B． |
Giving feedback. |
| C． |
Receiving feedback. |
| D． |
Showing a way to success. |
（2）Why is it important to give feedback in time according to Paragraph 2？
| A． |
You might forget to tell the person later on. |
| B． |
Perhaps the person wants the feedback right away. |
| C． |
Maybe the person needs time to understand your advice. |
| D． |
If you wait to long，the person might forget what's happened. |
（3）What can we infer（推断）from the underlined saying in Paragraph 3？
| A． |
It's helpful to keep on giving bad feedback. |
| B． |
It's difficult to do a good job all the time. |
| C． |
It's better to balance good and bad feedback. |
| D． |
It's important to think twice before giving feedback. |
（4）The passage is mainly about .
| A． |
what characters good feedback includes |
| B． |
how people should give feedback properly |
| C． |
the differences between good and bad feedback |
| D． |
the importance of giving and receiving feedback |
"I spent my whole life doing one thing，" Gu Fangzhou once said.Known as "the father of sugar pills （糖丸）"，Gu passed away on January 2，2019.Eight months later，he received a national honorary﹣title （荣誉称号） "the People's Scientist" for his polio （脊髓灰质炎） research.
Gu Fangzhou，a famous medical scientist，was born in June，1926.Gu's family faced a difficult time with the sudden death of his father.He studied hard and finally entered Peking University as a medical student in 1944.After graduation，Gu made the decision to work to help improve public health.
In 1955，polio broke out in Nantong，Jiangsu Province.It paralyzed （使瘫痪） 1，680 people，mostly children aged below seven.It spread to neighboring areas and resulted in 466 deaths.Gu was asked to lead polio research in 1957. "At that time the only way to prevent polio was to invent a vaccine （疫苗），" said Gu.
In 1959 Gu succeeded in developing the first polio live vaccine.Later，he developed the "sugar﹣coated pill" vaccine in the early 1960s.It not only tasted better but was more affordable and easier to keep.To test the vaccine，Gu tried the vaccine in person and later his one﹣month﹣old son was vaccinated.This inspired his team to vaccinate their kids.They became the first group of people in China to try a polio vaccine. "If we don't believe in what we produce，how can others believe in it？" said Gu.
Gradually，the sugar﹣coated polio vaccine was made available in China.It saved millions of people，especially kids，from being disabled.In 2000，the World Health Organization （WHO） announced that China was already a polio﹣free country. "We feel satisfied.I can tell people that I tried my best，and your kids will no longer get polio，" said Gu. "That's all we hoped for. "
（1）What was Gu Fangzhou's age when he passed away？
A.About 89.
B.About 93.
C.About 95.
D.About 96.
（2）Who were the first group of people to try a polio vaccine in China？
①Gu Fangzhou himself.②Gu Fangzhou's partners' kids.
③Gu Fangzhou's parents.④Gu Fangzhou's son.
A. ①②③
B. ①③④
C. ②③④
D. ①②④
（3）Which of the following is Not mentioned in the passage？
A.Gu got married in his twenties.
B.Gu entered Peking University to study medicine in 1944.
C.Since 2000，China has become a polio﹣free country.
D.Gu received a national honorary﹣title "the People's Scientist" after his death.
（4）What is the writer's purpose in writing the passage？
A.To introduce the research about the polio vaccine.
B.To report an important medical invention.
C.To introduce a great medical scientist.
D.To show Chinese polio vaccine to the world.
When do children start to talk？If you ask a group of parents when this happened，most will say" around twelve months of age".They will probably even remember what the children said.Many parents keep a diary of their child's "first words"
We can never predict what a first word is going to be.Often it's the name for" mummy " or "daddy"，but it could just as easily be the word for an animal or a favorite toy.Everything depends on what has most caught the child's attention.But one thing is certain：after the first word，others come quickly.By 18 months，most children have learned about 50 words.By two，the total has risen to around 200.
Early words are actually one﹣word sentences.One of the first features（特征）of language a child learns well is to control the rise and fall of the voice to make the difference between stating and questioning.In English，daddy with a high rising tone（声调）means "is that daddy？" Daddy with a high falling tone means "There's daddy".Of course，only very basic meanings can be communicated using tones alone.So it soon becomes necessary to learn some grammar.
In English，grammar means learning to put words in different orders.Children have to see that mummy push is different from push mummy.They start practising such changes at around 18 months.By two，they have learned the basic patterns of word order，and we hear them saying such things as man kick ball and where daddy go.
What are the parents doing all his time？They're acting as teachers and they always have an active role to play in their child's language learning.
（1）How old are most children when they have learned about 50 words？
A.About 6 months old.
B.About one year old.
C.About 18 months old.
D.About two years]old.
（2）Which might an English child say first when learning to talk？
A.Mummy.
B.Push mummy.
C.Man kick ball.
D.Where daddy go.
（3）What's Paragraph 4 mainly about？
A.Word order.
B.Word tones.
C.The first words.
D.Correcting words.
（4）Who is most responsible for a child's early language learning？
A.Teachers.
B.Parents.
C.Friends.
D.Grandparents.
Tangchang，a town in Chengdu，is well﹣known for cloth shoes.With over 20 types，Tangchang cloth shoes are strong，comfortable，breathable and friendly to the environment.In 2018，they were added to Sichuan's intangible cultural heritage list（非物质文化遗产名录）.
63﹣year﹣old Lai Shufang has spent over 40 years making Tangchang cloth shoes.Now she is a master.She said there are 32 steps to make a pair，but the most important step is making the soles.
Layers（层）of white cloth are glued together with flour paste（糨糊）. "To make good paste，we make it at a temperature of 85℃.If it's too low or too high，the paste will not work， "Lai said.Then the pasted layers are dried and cut into different shapes.After this，the layered cloth is beaten again and again until it is tight（紧实的）enough to make soles and upper parts.The next step is to shape the two parts and glue them together.But still the soles' edges look fluffy.Through repeated polishing and trimming，the fluffy edges（毛边）will become smooth.Then the cloth shoes are ready.
Lai's hard work touched her son Ai Peng.In 2015，Ai decided to leave his job and help his mother.He used Shu embroidery to make the shoes look more beautiful and opened a cloth shoe store online.He also set up shop windows to show the steps of making shoes，helping more people learn about the art of cloth shoes.
（1）What is the most important step in making Tangchang cloth shoes according to Ms.Lai？
A.Making the soles.
B.Making the upper parts.
C.Making good flour paste.
（2）What is the correct order of the following steps of making Tangchang cloth shoes？
①beating the layered cloth.
②making flour paste at an exact temperature.
③gluing the upper pars and the soles together.
A. ③②①
B. ②③①
C. ②①③
（3）How many things has Lai's son done to make the cloth shoes more popular？
A.Two.
B.Three.
C.Four.
（4）Which of the following questions is answered in the passage？
A.What are the features of Tangchang cloth shoes？
B.When did Ms.Lai become a master of cloth shoes？
C.What's the most important material in making cloth shoes？
（5）What is the best tile for this passage？
A.A Talented Shoemaker，Lai Shufang
B.Hand﹣made Cloth Shoes in Tangchang
C.Tangchang，a Well﹣known Town in Chengdu
Have you ever bought something and then changed your mind？For Alison Jenson，15，this used to happen several times a week.Alison was a shopaholic.She just couldn't stop shopping and she loved special offers.
Alison's bedroom is full of stuff. "I've been to every shop in Birmingham，I think， "says Alison.She picks up some earrings.The labels are still on them. "These were half price， "she says. "I've never worn them. "Alison's problem wasn't just jewellery.She also bought a lot of clothes，though not many shoes，because they were usually too expensive.She has also bought lots of other small things - like 20 new covers for her phone.She hasn't used any of them.
According to experts，we all feel excited after we buy something new.For shopaholics，it's a little different.Soon after they buy something，they think they've made a mistake and start to feel unhappy.So they buy themselves something else to feel happier.
Psychologists （心理学家）first described the problems of shopaholics in 1915.However，there was very little research on the subject until recently.Now，doctors think thousands of people suffer from the problem，and the situation is getting worse.There are also more teenage shopaholics now，although most young people don't have enough money to go shopping very regularly.
Alison knew she had a problem. "I often bought something every day.Usually it was something small，but I just needed to buy it， "she says. "I spent money that I got for my birthday，and when I was short of cash，I borrowed money from friends or my parents.When I couldn't go shopping，I felt anxious.Then one day，my parents just looked at all the stuff in my room and said，'This is crazy!' I knew theywere right. "I needed some big changes in my life.
Alison now gets help with her problem and feels she has changed.She no longer thinks she's a shopaholic. "When I want to buy something in a shop，I ask myself two questions， "she says. "Do I need it？Can I afford it？The answer to both questions is usually 'no'，so I walk away.It's great!"
（1）What do experts say about shopaholics？
| A． |
Shopaholics feel sad when they are shopping. |
| B． |
Shopaholics soon feel unhappy after they have bought something. |
| C． |
Shopaholics feel more excited than other people when they shop. |
| D． |
Shopping is the only way shopaholics can feel happy. |
（2）The underlined word "they" in Paragraph 5 refers to .
| A． |
psychologists |
| B． |
doctors |
| C． |
Alison's parents |
| D． |
Alison's friends |
（3）Which word can best describe Alison's feeling at the end of the passage？
| A． |
Glad. |
| B． |
Worried. |
| C． |
Embarrassed. |
| D． |
Moved. |
（4）The best title for the passage above might be .
| A． |
Shop Till You Drop! |
| B． |
Shopping Makes Me Happy! |
| C． |
You'd Better Shop Less ! |
| D． |
I Can Stop Shopping Now! |
Everything is made of something.Nothing is made of nothing.
Chemistry is about the smallest things that other bigger things are made of，and what happens when theychange.The word chemistry comes from chemical，which is an example of one type of the very small things that other bigger things are made of.The words you are reading now are made of a dark liquid called ink （墨水），which is written on paper.The paper itself is made out of the chemicals that wood is made out of.Both the ink and the paper were made by different chemical processes.A chemical process is what happens when chemicals come together to make other chemicals，and therefore other things.
Cooking makes chemical changes.Your different ingredients are made of different chemicals，and when you put them together and make them hot and cook them，the chemicals change into new chemicals and the different ingredients make something new.That tomato sauce you're making is made of tomatoes，onions，garlic，salt and pepper.Those ingredients each have their own chemicals and their own flavors，but now with your sauce you've made something different，something that has its own flavor，all the ingredients mixed together，all the chemicals mixed together，something new.
You can smell the chemical changes，too，as they go up into your nose，especially when you forget about your sauce and it doesn't just cook but bums and becomes black and has a really bad flavor.You can't make it better，either，because once chemicals change，they can't be changed back again.
（1）What does the underlined word "they" in Paragraph 2 refer to？
| A． |
Chemistry. |
| B． |
Chemical. |
| C． |
The smallest things. |
| D． |
The bigger things. |
（2）What is a chemical process？
| A． |
Ink is written on paper. |
| B． |
Paper is made out of wood. |
| C． |
Everything is made of something. |
| D． |
Things mixed together produce something new. |
（3）What does Paragraph 3 mainly talk about？
| A． |
How to make tomato sauce. |
| B． |
What to use to form new things. |
| C． |
Ingredients and their own flavors. |
| D． |
Chemical changes in cooking food. |
（4）Which might be the best title for the text？
| A． |
What chemistry is like. |
| B． |
Chemistry changes everything. |
| C． |
Where the word chemistry comes from. |
| D． |
A chemical process is called chemistry. |
There was a young man who was in trouble.He went bankrupt （破产）and his wife went away from him.From then on，failure was all that he had seen.Struggling （斗争）with this，he went into the forest alone.There，he met an old man who had lived there for a long time.He shared his story with the old man and asked"Can you give me one good reason not to give up？"
"Look，" the old man said，"Do you see that fern （蕆类植物）and bamboo there？"
"Yes." the man answered.
"When I planted the fern and bamboo seeds，I watered them carefully.Within a few days，the fern quickly grew from the land，" the old man went on.
"However，I watered the bamboo seed for years，it still didn't sprout.But I didn't give up and continued looking after it.In the fifth year，a small sprout came out of the land.Within six months，the tree grew a hundred feet tall."
"The little bamboo tree had been growing underground in the past four years，developing a root strong enough for its ground growth （生长）in the fifth year.If it hadn't done this，it would not be so strong.So you know，all the time you were struggling，you were actually growing strong roots." the old man said.Finally，the man thanked the old man deeply.Then he left the forest with the hope for life.
（1）What happened to the young man？
A.He was seriously ill.
B.He was badly hurt.
C.He went bankrupt and his wife left him.
D.He went to a bank with his wife.
（2）The difference between the fern and the bamboo mentioned in the passage is their .
A.weight
B.growth
C.looks
D.colors
（3）The underlined word "sprout" in Paragraph 5 means " " in Chinese.
A.发芽
B.开花
C.枯萎
D.结果
（4）The young man felt after hearing what the old man said to him.
A.sad
B.disappointed
C.hopeful
D.nervous
（5）Which can be the best title for the passage？
A.Practice makes perfect.
B.The early bird catches the worm.
C.Learn to share with others.
D.Never lose hope when in trouble.
Most viruses can be found and killed by our immune system as soon as they enter our bodies.However，some viruses，for example，the coronavirus，are sneaky.They are difficult to recognize and find.These viruses can cause deadly diseases，like COVID﹣19.Human﹣to﹣human transmission can easily occur，and pandemic will therefore break out.Vaccination is by now a simple，safe and effective way to protect us from the diseases.
▲Vaccines are something that "looks" exactly the same as the viruses，mainly made from the viruses that are weakened or killed.They will not make us really ill.They only stimulate and activate our immune system to work，telling it something harmful is coming in.The immune system will know what the "viruses" look like，and send B cells（lymphocytes）or antibodies to find and kill them.Meanwhile，B cells will remember them for the next kill.A vaccine may also give us passive immunity by providing B cells taken from an animal or a human to play the same role.
Scientists have developed more than 180 vaccines to fight against COVID49.The technical approaches of these vaccines can be a little different，but their aims are the same.
Take the inactivated vaccine as an example.In an inactivated vaccine，the coronaviruses are already killed or made into the ones unable to produce more new viruses.When the immune system "sees" them，it will try to kill them.The question is：without enough these viruses• how can B cells remember them？That's why we need to take the vaccine more than one time.Though this vaccine is safe，it might not be as effective as it is expected to be.
The live﹣attenuated vaccine is different.In this vaccine，the viruses are weakened，but they are alive.They can produce enough new viruses to train the immune system to kill and remember them，so people only need to take the vaccine once.The live﹣attenuated vaccine is considered the most effective，but there is a worry：what might happen once these viruses wake up？
Therefore，although vaccination is by now one of the best ways to protect us from COVID﹣19，it can be better.
（1）The coronavirus can .
| A． |
not be killed |
| B． |
not be found |
| C． |
cause deaths |
| D． |
stop pandemic |
（2）Which of the following can be the best topic sentence of Paragraph 2？
| A． |
Vaccination can provide us with B cells. |
| B． |
Vaccines are made from different viruses. |
| C． |
Vaccination can prepare us against viruses. |
| D． |
Vaccines won't make us ill as the viruses do. |
（3）Compared to the inactivated vaccine，the live﹣attenuated vaccine .
| A． |
needs taking more than once |
| B． |
is equally safe |
| C． |
contains viruses that are killed |
| D． |
is more effective |
（4）What can we learn from the passage？
| A． |
Vaccination is good enough to treat COVID﹣19. |
| B． |
The immune system can be more effective with vaccines. |
| C． |
The viruses in inactivated vaccines can make new viruses. |
| D． |
180 vaccines have been developed to fight against diseases. |
Marianne Carus，who started Cricket（蟋蟀）magazine in 1973 and served as Editor﹣in﹣Chief（总主编）until 2012，died on March 3 at the age of 92 this year.
Marianne believed that "only the best of the best is good enough for the young. "In Cricket，children would find wonderful stories with beautiful art，and be encouraged by ideas in the humanities and sciences.Marianne looked for stories from around the world to awaken admiration for different peoples and cultures.Most important，Cricket would never talk down to children.
Marianne knew that children were filled with fun，and she wanted Cricket to be，too - "humor from the heart that makes you laugh out loud. "And so she named her literary magazines after a funny group of bugs（虫子），such as Lady bung and Spider.
Over the years，Cricket has been read by millions of children and given many writers and artists their start.Marianne kept a special box of "love letters" to the magazine.She treasured these letters from Cricket readers，including long﹣ago readers.They told her that their interest in reading had begun with Cricket.
▲She considered other names，such as Troubadour or Taliesin，the singers and storytellers of old who traveled from one place to another to share their songs and stories.Then，one night，she was reading Isaac Bashevi Singer's memoir（回忆录）A Day of Pleasure，about his childhood in Warsaw.In it he wrote：There was a stove in Shosha's apartment behind which there lived a cricket.It chirped the nights through all winter long I imagined the cricket was telling a story that would never end. "That's exactly what Marianne wanted her children's magazine to do-to tell stories that would never end!So the name Cricket became her best choice.
Thank you for everything，Marianne.May the stories，and the laughter，never end!
（1）Cricket is a magazine most probably for .
| A． |
writer |
| B． |
children |
| C． |
artists |
| D． |
teachers |
（2）According to the passage，Marianne .
| A． |
made an effort to find the best stories |
| B． |
raised many bugs as her pets |
| C． |
replied to long﹣ago Cricket readers |
| D． |
started Cricket 39 years ago |
（3）Which of the following can be the best to fill in" ▲"in Paragraph 5？
| A． |
How was the life of crickets？ |
| B． |
When was the magazine Cricket born？ |
| C． |
What did Marianne think of crickets？ |
| D． |
Why did Marianne name her magazine Cricket？ |
（4）The best title for the passage can probably be .
| A． |
The Life of a Cricket |
| B． |
Admiration for Different Cultures |
| C． |
Best Stories for the Young |
| D． |
Achievements in Marianne 's Life |
Have you ever entered a tropical rainforest（热带雨林）？Rainforests make up only a small part of the Earth's surface，about six percent，but there are more kinds of tees than any other area in the whole world.
Tropical rainforests are in Africa，Asia，Central and South America，Australia，and on the Pacific islands.The largest tropical rainforest is the Amazon（亚马逊）Rainforest in South America，which covers 1.2 billion acres，or almost five million square kilometres.The second largest rainforest is in Western Africa.
Rainforests provide us with many things.In fact，the Amazon Rainforest is the "lungs of our planet" because it produces 20%of the world's oxygen （氧气）.One fifth of the world's fresh water is also found in the Amazon Rainforest.Furthermore，one half of the world's species of animals，plants and insects live in the Earth's rainforests.80% of the food we eat first grew in the rainforest.25%of the drugs we take when we are sick are made of plants that grow only in rainforests.Some of these drugs are even used to fight and cure cancer.
There are four different levels of trees in a rainforest.The forest floor is the lowest layer full of animal life and receives the least amount of light.The under storey is the dark，cool environment under the leaves but over the ground.The canopy layer is the upper parts of most of the trees.The emergent layer contains a small number of very tall trees.
These different parts of a rainforest exist together to create an ecosystem for many animals，plants and human beings.
（1）This passage is mainly about .
A.kinds of forest
B.where rainforests are
C.facts about rainforests
D.how much oxygen rainforests make
（2）The Amazon Rainforest provides us with percent of the world's oxygen.
| A． |
twenty |
| B． |
twenty﹣five |
| C． |
fifty |
| D． |
eighty |
（3）Where can we probably find a tropical rainforest according to the passage？
| A． |
In France. |
| B． |
In China. |
| C． |
In Canada. |
| D． |
In Britain. |
（4）Which is the right picture to show four different levels of trees in a rainforest？
| A． |
|
| B． |
|
| C． |
|
| D． |
|
Dogs may be man's best friends，but for Sisu，a stray dog，the unicorn（独角兽）is his best friend.
Recently，Sisu broke into a store in North Carolina five times，trying to steal the same purple unicorn toy.But every time he got it，a salesman would find him，take the toy away and put it back on the shelf.When it turned out that Sisu wouldn't give up，the salesman had to lock the door and not let Sisu in，and then called Duplin County Animal Services for help.
Samantha Lane，the officer who answered the call，was so moved by Sisu's love for the unicorn that she bought the ＄10 toy for the dog.
"The only thing we can think of is that he came from a family that had a similar toy or had children who had one， " said Joe Newbum，a director of Duplin County Animal Services.
"It's a nice dog，" Newbum added. "He likes to play and he is very smart.He sits，stays and shakes hands.He is very polite."
And whoever is lucky enough to adopt（收养）Sisu will get two best friends for the price of one.According to the Facebook post from Duplin County Animal Services，Sisu and his stuffed animal have already had an adopter.
（1）Why did Sisu break into the store in North Carolina？
| A． |
To meet his adopter. |
| B． |
To look for some food. |
| C． |
To get the unicorn freely. |
（2）What can we learn from Joe Newbum's words？
| A． |
The family had only one child. |
| B． |
The family owned many unicorns. |
| C． |
Joe Newbum thought highly of Sisu. |
（3）What is the right order according to the story？
a.Sisu was adopted at last.
b.Sisu broke into the store.
c.The salesman called for help.
d.The officer bought Sisu the unicorn.
| A． |
b﹣d﹣a﹣c |
| B． |
b﹣c﹣d﹣a |
| C． |
c﹣d﹣b﹣a |
（4）What can be a suitable title for the text？
| A． |
Brave for Love |
| B． |
Kind to Animals |
| C． |
Proper Feeding of Dogs |
Like most kids，Landon Kenstrick，5 years old，has a favorite animal.However，his favorite animal is quite different from other kids'.He loves pangolins.
Pangolins have small heads and long，broad tails.They are toothless.They have small ears，but their hearing is good.Their sense of smell is well﹣developed，too.But their sight is poor.When they feel frightened，they roll up into a ball to protect themselves. "My favorite thing about the pangolin is the scales （鳞片）it has on its body.They look cool， "Landon said.
Landon first learned about pangolins from a TV show，Wild Kratts.Knowing that pangolins are facing the danger of dying out，Landon quickly decided to take action to protect them.He wanted to tell everyone he knew about them.On Halloween，he had his parents carve （雕刻）a pangolin into their pumpkin（南瓜）so that when people asked what it was，he could tell them all about his favorite animal.When Christmas came around，Landon had only one wish：to save the pangolins.His parents had him "adopt （领 养）" a pangolin in Landon's name.They also came up with a good idea.They helped Landon make Christmas gifts to sell to help raise money for the pangolins at a market.So far，he has raised ＄ 400.
If you think a 5﹣year﹣old boy is too young to save the pangolins，you'd be wrong.Landon told us nobody's too young to save anything.
（1）What can we know about pangolins？
| A． |
They have great sight. |
| B． |
They have good hearing. |
| C． |
They have poor sense of smell. |
（2）How do pangolins protect themselves when they are in danger？
| A． |
They take off their scales. |
| B． |
They roll up into a bait. |
| C． |
They fight with their teeth. |
（3）Why did Landon have his parents carve a pangolin into their pumpkin？
| A． |
He wanted to put protecting pangolins into action. |
| B． |
He wanted to make the pumpkin beautiful. |
| C． |
He wanted to raise more money. |
（4）What does the writer want to tell us in the last paragraph？
| A． |
A 5﹣year﹣old boy cant save pangolins. |
| B． |
Children can also save something. |
| C． |
It is wrong to save pangolins. |
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