Every year，tens of thousands of kids aged 3 to 13 become Junior Rangers in different national parks across America.At Yosemite alone，more than 20，000 kids take part in the Yosemite Junior Ranger Program.If you want to be a Junior Ranger，you need to learn about the natural and cultural history .and make a promise to be a national park protector.
Here Is How YOU Can Become a Junior Ranger!
Earn yourself an official Junior Ranger Badge!You could become a Yosemite's Junior Ranger today by completing the following steps：
• Buy your Junior Ranger Handbook in the nearest Visitor Center.
• Complete the pages in the handbook.
• Pick up rubbish.
• Attend a Guided Program.
• Return your completed handbook and a bag of rubbish to the Visitor Center.
• Make your official Junior Ranger Promise at a ceremony.
• Get your official Junior Ranger Badge.
After you become a Junior Ranger，you are encouraged to share your ranger stories with your friends，teachers and families.
（1）Who can become Junior Rangers？
| A． |
Children. |
| B． |
Parents. |
| C． |
Teachers. |
| D． |
Officers. |
（2）What should Junior Rangers promise to do？
| A． |
Read the handbook. |
| B． |
Learn American history. |
| C． |
Share ranger stories. |
| D． |
Protect the national parks. |
（3）Before getting Yosemite's Junior Ranger Badges，they should complete .
| A． |
four steps |
| B． |
five steps |
| C． |
six steps |
| D． |
seven steps |
Look at the Earth from.space.Why does our planet look so blue？Its blue because water covers almost three quarters of the Earth's surface.Water is not just an important part of our planet.It is an important part of our body，too.More than half of our total body weight is water.
Our body loses water whenever we exercise or.go to the toilet.That's why we need to drink plenty of water every day.We drink water.We use it to cook，clean，and carry waste out of our homes.Farmers use it to grow vegetables and crops like rice and corn；factories use it to make products.
Since the 1950s，the amount（数量）of water people use has increased by three times.But the water supply（供应）hasn't.Scientists worry that soon there won't be enough water for us，as well as for the animals and plants that share our world.What can we do to help？Use water wisely.
Having enough water isn't our only problem. We also need it clean.
Right now，ships and factories are putting wastes into seas，rivers and so on.Even chemicals that farmers use are running into rivers and lakes.All this pollution can make the water dangerous to drink.It can also harm fish and other water﹣living lives.
We must do something to stop pollution.It's the best way to protect our world's most valuable natural resource（资源）.
（1）How many important areas of water are mentioned in Paragraph 1？
A.One.
B.Two.
C.Three.
D.Four.
（2）The underlined sentence "We also need it clean" in Paragraph 4 means" ."
A.We also need water to wash things
B.We also need water that looks clean
C.We also need to keep water clean
D.We also need to discover clean water
（3）This passage was written to .
A.ask people to value water
B.advise people to drink more water
C.introduce the uses of water
D.describe the situation of water supply
Isn't fast food delicious？Aren't fast food restaurants cool？ ...The answer to these questions is yes.
However，there are growing facts that fast food is one of the worst parts of modern life.And studies have shown that burgers and fried chicken，which we enjoy so much，can cause a lot of health problems.
In spite of （尽管） this，why are fast food restaurants so attractive（吸引人的）？The first and most important reason is that their service is fast.Their staff（员工）are friendly and very smart﹣looking in their clean and bright uniforms（制服）.Moreover，most fast food restaurants are near places that people always pass by.It is so easy to graba burger and eat on the way to work.
Fast food is often so conveniently packed（包装方便）that it will not cause a mess even if you stand and eat it.Fast food restaurants are also very clean.A lot of clever ads（广告）have made them the coolest places in town，but none of them has ever told and will never tell you that too much fast food is not good for your health.
Such attractive places are selling junk food!Isn't it a pity？Is there a way to change the fast food restaurants into special places where you get the best possible，healthy and fresh food？
Well，why not？
As people realize the health problems that fast food causes，it is quite likely that fast food restaurants may go out of date.It may happen sooner or later.
Therefore，instead of resisting（抵制）fast food restaurants，a better idea may be to persuade（说服）them to change their menu!Fast food restaurants can be places to go to when you want to eat something that will be good for your body.If they could combine（结合）healthy food with their speed of service，delicious tastes and comfortable feelings，that will be the next best thing on the earth for the human beings!
（1）What does " this" in Paragraph 2 refer to？
| A． |
Fast food is delicious. |
| B． |
Fast food restaurants are cool. |
| C． |
People enjoy fast food. |
| D． |
Fast food can cause health problems. |
（2）Fast food has many advantages EXCEPT that it's .
| A． |
delicious |
| B． |
fast |
| C． |
healthy |
| D． |
unhealthy |
（3）Which word can replace the word " grab" in Paragraph 3？
| A． |
move suddenly. |
| B． |
get quickly. |
| C． |
throw quickly. |
| D． |
carry carefully. |
（4）According to the passage，ads about fast food .
| A． |
show you all the facts |
| B． |
don't tell you the whole truth |
| C． |
make it hard to buy fast food |
| D． |
make fast food restaurants out of date |
（5）The author advises .
| A． |
making the service of fast food faster |
| B． |
resisting fast food restaurants |
| C． |
changing tastes of fast food |
| D． |
making fast food good for health |
Is it possible to have a diet（日常饮食）that's both healthy and friendly to our planet？Here are answers to your eco﹣friendly food questions.
Does what I eat influence climate（气候）change？
Yes.The world's food system is responsible for（为……负责）about one quarter of the planet﹣warming greenhouse gases that humans produce each year.That includes raising and harvesting all the plants，animals，and animal products we eat，as well as processing，packaging，and shipping food to markets all over the world.
Which foods have the largest influence？
In general，beef and lamb have the biggest climate footprint per gram of protein while plant﹣based foods like beans，rice，corn and wheat have the smallest influence.Pork，chicken，eggs are somewhere in the middle.
Is there a simple food choice I can make？
Studies have shown that people who eat a meat﹣heavy diet can reduce their food-related footprint by one third or more by moving to a vegan diet ﹣ no meat，dairy（乳制品），or eggs.If you don't want to go that far，just eat less meat.
Can I really make a difference to our planet？
We need more food to feed the world's growing population.One person alone can make only a tiny difference.If many people make changes to their diets，that will start to add up.It will make a greater difference if the world's heaviest meat eaters make some changes to their diets.
（1）According to the passage，which foods have the smallest influence on our planet？
| A． |
Beef and lamb. |
| B． |
Rice and corn. |
| C． |
Chicken and pork. |
| D． |
Beans and beef. |
（2）According to the passage，which of the following is TRUE？
| A． |
One person alone makes no difference to our planet. |
| B． |
Shipping food a lover the world has no influence on climate change. |
| C． |
All the planet﹣warming greenhouse gases come from the food system. |
| D． |
Meat eaters can reduce their food﹣related footprint by eating less meat. |
（3）What is the best title for the passage？
| A． |
How to produce more meat. |
| B． |
How to make more plant﹣based foods. |
| C． |
How to eat better for the planet. |
| D． |
How to ask eco﹣friendly food questions. |
A fish that lives in America can live out. of water for months at a time, similar to how animals got used to land millions of years ago, a new study shows.
The Mangrove Rivulus, a kind of little fish, lives in small pools of water. When their living place dries up, they live. on the land, said Scott Taylor, a researcher in Florida.
The fish can grow as large as three inches. They group together and breathe air through their skin before they can find water again.
The new scientific discovery came during a trip.
"We were travelling for fun. and one day I kicked over a log (圆木) and the fish came out," Taylor told reporters by telephone. He said he would make his study on the fish known to the public in an American magazine early next year.
In lab tests, Taylor said he found the fish can live up to 66 days out of water without eating.
Some other fish can live out of water for a short period of time. The walking catfish found in Southeast Asia can stay on land for hours at a time, while lungfish(肺鱼) found in Australia, Africa and South America can live out of water, but only in a not active(活波的)way. But no other known fish can be out of water as long as the Mangrove Rivulus and keep active, according to Patricia Wright, a biologist at a Canadian University.
More studies of the fish may tell how animals changed over time.
"These animals live in conditions similar to those millions of years ago, when animals began to move from water onto land," Wright said.The Mangrove Rivulus is a type of fish that_________.
| A．lives on land in Africa |
| B．can stay alive for months out of water |
| C．prefers living in dry places |
| D．is the longest living fish on earth |
Who will write a report on Mangrove Rivulus?
A, Scott Taylor. B. Some reporters.
C. Patricia Wright. D. Scientists from Europe.According to the passage, lungfish can___________.
| A．breathe through its skin | B．be found in Asia |
| C．keep alive out of water | D．keep alive and walk on land |
Which one of the sentences below is not true?
| A．The Mangrove Rivulus fish can live out of water as long as other animals if it has something to eat. |
| B．Millions of years ago, animals began to live onto land from water. |
| C．Lungfish found in Australia, Africa and South America can live out of water in a not active way. |
| D．The walking catfish found in Southeast Asia can stay on land for hours at a time. |
What can we say about the discovery of Mangrove Rivulus?
| A．ft was made by Scott Taylor, a researcher in New york. |
| B．It was helped by an American magazine. |
| C．It was helped by Patricia Wright. |
| D．It was made by a researcher while travelling. |
The computers changed our lives in the 1980s, the Internet changed our lives in the 1990s, and the robots will change our lives in the new century.
Do you think there will be robots in people’s homes? It’s not a dream that every home will have a robot.
Now, robots are not only able to help people do the housework, they can also help the doctors do the difficult operations, play chess with people, play the piano and so on.
A new cooking robot is used in Beijing. It can cook all the dishes on the menu, you only need to wait two to four minutes, in the future, the robot will be a nurse, a security guard, or a partner in your life.
Experts(专家) believe robots will be used everywhere from the industrial( 工业的) robots to service robots. In the future, robots will become part of the family, and provide else service for people. We all look forward to the new robot age. changed our lives in dm 1990s.
A. The robots B. The compilers C The TV sets D. The Interact According to the passage, we know that a new cooking robot is being used in .
| A．the future | B．Beijing | C．many countries | D．many families |
What can the robots do now?
A. They can help people do the housework.
B. They can help the doctor do the difficult operations
C. They can play chess with people.
D. A, B and C.Experts believe robots will be used .
| A．only in a hospital | B．only in a filmily |
| C．only in a factory | D．everywhere |
Which is the best title(标题) of the passage?
| A．The computers changed our lives | B．Robots can cook |
| C．Robots are coming | D．Robots will be doctors |
The good things about computer games
They’re fun!
They can improve hand-eye coordination. That means you can think and do things more quickly.
You feel good when you can move up levels and see how well you’re doing.
Most games make you think about what you’re going to do, and they can help you improve the ability (能力) of solving problems.
You can play games on the Internet with people from all over the world.
Anyone can play computer games, even if they aren’t very good at sports, have a disability, or find it hard to talk to others.
The bad things about computer games
Kids may start hitting others in their lives just as they do in games because they may think it’s OK to hit others, or to talk to people, including their parents and teachers, impolitely.
If kids play games for a long time, they may not go out and exercise. They may start eating snacks while they play games and they will become too fat. Doctors are worried about kids that play too many computer games.
Playing games is a big problem for some people. They will play or think about games when they have time. This means they may stop talking with others and become really boring people.How many good things about computer games does the writer mention?
| A．Three. | B．Six. | C．Seven. | D．Nine. |
What does the underlined word “coordination” mean in Chinese?
| A．协调 | B．障碍 | C．舒适 | D．问题 |
If you play computer games all the time, you may become a(n) ______ person.
| A．healthy, impolite and boring | B．healthy, polite and boring |
| C．unhealthy, polite and boring | D．unhealthy, impolite and boring |
Which of the following is NOT true according to this passage?
| A．Most games are good for your ability of solving problems. |
| B．You can’t play games with strangers on the Internet. |
| C．Playing too many computer games may make you fat. |
| D．Playing games can also cause many problems. |
The passage is mainly about .
| A．the two sides of computer games |
| B．how to improve your computer games skills |
| C．playing computer games with others |
| D．some interesting things about computer games |
Dolphins are our friends. They can use tools to solve problems although they don’t have hands. For example, scientists have ever found that a dolphin can make a shy eel(鳗鱼) come out of its hole with a dead fish.
Dolphins use different sounds to exchange information with each other. Scientists in Hawaii have developed a sign language to give instructions to dolphins, and the results are amazing. They find that dolphins not only understand the meaning of individual (个别的) words, but also understand the importance of word order in a sentence.
Most animals enjoy playing — but dolphins seem to like making their games as challenging as possible. On a beautiful day in 1997, scientists at a beach watched a little dog going into the sea and swimming towards the dolphins. To their surprise, the dolphins came up to the dog and then started throwing it into the air. The dog seemed to enjoy the "game" and continued playing with the dolphins for more than an hour.
Dolphins live in a very different world from ours, but they are very good at our "IQ tests” . For example, they will jump out of the water when they hear a whistle (口哨) noise. They do this because they will get a fish as a prize.
There is still much to learn about these cute problem-solvers, but it is certain that watching a dolphin show is fun.
根据短文内容，选择最佳答案。 What can a dolphin use to make an eel come out of its hole?
| A．Its mouth. | B．Its head. | C．A dead fish. | D．A little dog. |
How do dolphins exchange information with each other?
| A．By using tails. | B．By using tools. |
| C．By using words. | D．By using sounds. |
Where did the dolphins throw the dog when playing?
| A．Onto its back. | B．Into the air. |
| C．Onto the beach. | D．Into the water. |
Why do the dolphins jump out of the water when they hear a whistle noise?
| A．Because they want to get a fish as a prize. |
| B．Because they enjoy playing on the water. |
| C．Because they want to play with other dolphins. |
| D．Because the dolphin keepers want them to come out. |
Which of the following is TRUE according to the passage?
| A．Dolphins understand many languages. |
| B．Dolphins are a kind of clever animals. |
| C．Scientists have known dolphins well enough. |
| D．Dolphins seem to make their games relaxing. |
Computers are useful machines. They can help people a lot in their daily life. For example, They can help people to save much time to do much work, and they can help people to work out many problems they can’t do easily. Our country asked everyone except the old people, to learn to use computers before the twenty-first century.
Today more and more families own computers. Parents buy computers for their children. They hope computers can help them improve their studies in school. Yet, many of the children use computers to play games, to watch videos or to sing karaoke, instead of studying. So many teachers and parents complain that computers can’t help children to study but make them fall behind. So computers are locked in boxes by parents.
In some other countries, even some scientists also hate computers. They say computers make millions of people lose their jobs or bring them a lot of trouble.
Will computers really bring trouble to people or can they bring people happiness? It will be decided by today’s students themselves!Our country asked everyone to learn to use computers except the ________ .
| A．young people | B．old people | C．students | D．adults |
Why do we say the computer is a useful machine? Because _____
| A．Our country asks us to learn it. | B．it can help us to do a lot of things. |
| C．We can use it to play games only. | D．it can help us to find jobs only. |
What do many teachers and parents complain about? They complain about _____ .
| A．their students and children use computers to learn well. |
| B．computers let them lose their jobs |
| C．computers make their students and children fall behind |
| D．computers bring people a lot of trouble |
In this passage we know computers _____
| A．also bring us trouble | B．bring us happiness only |
| C．are hated by people | D．are good for people’s health |
How do you understand the last sentence of this passage? It means ____
| A．computers are used by people |
| B．people can live well without computers |
| C．one must decide how to use computers |
| D．computers are strange machine |
We’ve talked about snails (蜗牛) and their slow move. But much of the time snails don’t move at all. They are in their shells (壳) —sleeping.
Hot sun will dry out a snail’s body. So at the least sign of hot sun, a snail draws its body into his shell. A snail will die in a heavy rain. So when it rains, a snail does the same thing, too. A snail can sleep for as long as it needs to. It spends all the winter months in its shell, asleep.
In the spring the snail wakes up. Its body, about three inches long, comes out from the shell. When hungry, the snail looks for food. Its eyes, at the end of the top feelers (触角), are very weak. But its sense (感觉) of smell is very strong. It helps the snail to find food and the new greens.
A snail’s mouth is no bigger than the point of a pin (大头针). Yet it has 256,000 teeth! The teeth are very small, and you can’t see them. If you put a snail in a hard paper box, it will eat its way out! And if a snail wears out its teeth, it will grow new ones. A snail _________.
| A．moves more slowly at night | B．has thousands of feet |
| C．doesn’t move at all | D．sleeps much of the time |
In the sentence “A snail draws its body into its shell”, the word “draw” means _____.
| A．to make with a pencil | B．to push | C．to pull | D．to move away |
From the story, we know _________.
| A．a snail’s shell is very thin | B．a snail can’t see well |
| C．a snail’s nose is quite short | D．a snail’s body changes in different seasons |
A snail goes to sleep when _____.
| A．it feels hungry | B．it is put into a paper box | C．spring is coming | D．it rains heavily |
Which of the following is wrong?
| A．In winter the snail doesn’t eat or move. | B．A snail doesn’t like living under the sun |
| C．The snail’s teeth can’t be worn out. | D．The snail’s nose helps to find food. |
When you look at the sky at night, the moon looks bigger than the stars. Actually, the moon is much smaller than the stars and the sun. It’s much smaller than the earth. But the moon is much closer to us than any star. That is why it looks so big. If you hold a coin close to your eye, it looks big. If you look at it across the moon, it looks small.
The moon moves around the earth. It makes one trip in about four weeks. The moon looks flat to us. But it is a round ball, like the earth.
People once thought the moon had fire on it. They thought the fire made it bright. Now we know the moon is like a mirror. It gets its light from the sun.
Our sunlight comes from the sun, too. What is the sun? The sun is a star. The stars we can see have their own light. There are many big stars we cannot see. Their light had burned out. Others are still bright, but they are so far away that we cannot see them. The sun looks bigger and much brighter than other stars because it is the nearest of all stars. The sun and the other stars we see are very hot, but the air around us saves us from the heat of the sun.
The sun gives us light and warmth. It makes plants grow and turns leaves green. It makes life possible on our earth. It is a life giving star. It takes _______ for the moon to go around the earth.
| A．more than a week | B．nearly a month | C．half a year | D．more than a year |
The moon is bright because _______.
| A．there is some fire on it | B．it is near the sun, too |
| C．there is a big mirror on it | D．it can get light from the sun |
The passage tells us _______.
| A．the sun is not the biggest star | B．the sun is bigger than any other star |
| C．only the sun can shine | D．the sun is one of the farthest stars to us |
Why do we call the sun "a life giving star"?
| A．Because it gives us warmth. |
| B．Because there are some living things on it. |
| C．Because plants and animals can’t live without it. |
| D．Because people have to live in the dark without it. |
We live in the computer age. People use computers to do much of their work. But few people know how to look after them. Remember the following when you use your computer:
1.Keep your computer in a cool, dry room. Too much or too little heat is bad for computers. Damp(潮湿) is also bad for them.
2.Do not let people smoke near your computer. Smoke of all kinds is very bad for many parts of a computer.
3.Do not eat or drink when you are near your computer. Pieces of food and a little water in the keyboard are also bad for a computer.
4.Keep your screen clean and do not have it too bright. They are bad for your eyes. Make sure the screen is not too far from or too near your eyes. Some people use different glasses to protect their eyes when they use a computer.Computers can people to do a lot of work.
| A．use | B．help | C．make | D．take |
Few people know how to their computers.
| A．look at | B．try out | C．look for | D．take care of |
A computer works well at a temperature of .
| A．0℃ | B．-5℃ | C．20℃ | D．35℃ |
Smoke is not good for many parts of a computer, is it?
| A．Yes,it is. | B．No,it isn’t. | C．Yes,a little. | D．Not at all. |
A dirty screen or a very bright screen is for your eyes.
| A．bad | B．good | C．useful | D．helpful |
Nowadays, computer games are becoming more and more popular in many cities and towns. A lot of small shops along busy streets have been made into small game houses in order to get more money. These places are always crowded with people, especially young boys.
In the computer game houses, people spend a lot of money competing (较量) with the machines. It's hard for one to win the computer, but one can make progress after trying again and again. People have a kind of gambling psychology(赌博心理) when they play computer games.The more they lose, the more they want to win. When class is over, the school boys run to the nearby computer game houses.Little by little! (渐渐地), they forget all about their lessons and fall far behind others. Some of them can get enough money from their parents. But some of them are not lucky enough to get the money. They begin to take away other students' money and become thieves.Who always go to the computer game houses?
| A．Young girls | B．Young children | C．Young students | D．Young boys. |
People made small shops into small game houses in order to ______.
| A．make computer games more popular | B．get more money |
| C．help people to learn computer better | D．make people happy |
What must be brought to play games in the game homes?
A. Tickets. B Paper C. Cards. D. Money.What will happen to the boys if they keep going to the game houses?
| A．They will win a lot of money. |
| B．They will make a lot of good friends there. |
| C．They will fail in their study and even break laws. |
| D．They will live a happy life in the future. |
What is the passage mainly about?
| A．Game houses have a bad effect on young boys. |
| B．More and more small shops have been made into game houses. |
| C．Young boys spend a lot of money playing computer games. |
| D．People play games better after trying again and again. |
Zhalong is a nature reserve in Heilongjiang in north-east China. It is one of the world’s most important wetlands. The reserve covers an area of 210,000 hectares. The area provides food and shelter for wildlife. It is an ideal home for different kinds of plants, fish and birds.
Many birds live comfortably in Zhalong Nature Reserve all year round, while some only stay there for a short time. There are many fish in the wetlands, and the birds can easily catch them for food. Zhalong has long been called “the home of the crane”. There are 15 crane species (物种) in the world. 8 of them are in China and there are 6 species in Zhalong area. It is an important living area for the rare red-crowned cranes. There are not many red-crowned cranes in the world. Every spring and summer, red-crowned cranes lay and hatch (孵化) their eggs in Zhalong.
Some people want to change the wetlands to make more space for farms and buildings. This means there will be less and less space for wildlife. More and more birds are in danger because they do not have enough living space. Many of them died. The Chinese government wants to protect these endangered birds, and they can be safe in Zhalong.
Every year, a lot of tourists go to Zhalong to watch birds. This year, members of our Bird-watching Club are going to study the different kinds of birds in Zhalong and the changes in their numbers. The study begins next month.
We _______ once a year. We are now inviting secondary school students to help. We need more people to help us count and do something to help the birds.
Many people do not understand the importance of the wetlands. We hope this information will help them understand and make them actively take action to protect wildlife. What does the underlined word “ideal” mean?
| A．Perfect. | B．Dangerous. | C．Crowded. | D．Expensive. |
What can we learn from the second paragraph?
| A．All birds stay in Zhalong Nature Reserve all year round. |
| B．There are eight species of red-crowned cranes in Zhalong. |
| C．The number of the world’s red-crowned cranes is small. |
| D．Every winter red-crowned cranes hatch eggs in Zhalong. |
Which of the following can we choose for the blank (空白) in the fifth paragraph?
| A．go birdwatching | B．do a bird count | C．go bird-hunting | D．hold a bird show |
The purpose of the article is to _______.
| A．attract more visitors to pay a visit to Zhalong Nature Reserve |
| B．ask people to take action to protect wetlands and wildlife |
| C．prevent people from watching birds in Zhalong Nature Reserve |
| D．make people around the world know the Birdwatchting Club |
Most animals protect(保护) their young until they are old enough to take care of themselves. A fish that swims in the rivers of South America protects its young in a very strange way. This fish, a kind of catfish, uses its mouth to keep its babies from danger(危险).
When this catfish lays(产卵) its eggs, it carries them in its mouth. From what we know, it does not eat during this time. After the eggs hatch(孵化), the fish swims with its young to protect them. It opens its mouth when danger appears(出现), and the tiny fish swim inside. They swim out only when it’s safe again.
These catfish may have a peculiar way to protect their young, but it seems(好像) to work.The best title(标题) is _____________.
| A．Staying Away From Danger | B．How A Fish Protect Its Young |
| C．Laying Eggs | D．A Cat That Swims |
The catfish in the story live in _________________.
| A．lakes | B．the sea | C．rivers | D．North America |
The young fish are ____________________.
| A．tiny | B．large | C．yellow and gold | D．very brave |
If the young fish were not near their parents, they would be ______________.
| A．safer | B．in greater danger | C．happier | D．less hungry |
The word “peculiar” in the story means ________________.
| A．easy | B．useless | C．strange | D．dangerous |
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