(Four students are talking about the future after class.)Deng Yu :In 2050, China will be richer than it is now, Beijing will be getting ready for the 40th Olympic Games in 2052. We will see the blue a 题目和参考答案——青夏教育精英家教网—

What will the house of the future look like? Could it have gardens on its walls, or a pool with fish for dinner? Architects believe that they are all possibilities. The only thing for sure is that the houses will be as green as possible.
The tree house
Many architects in the world would like to build a “tree house.” Like a leaf, the surface of the house collects sunlight during the day. The energy can be used to heat water, produce electricity, and even create fresh air for the home. The “root” (根) of the house is deep under the ground. It uses the soil (土壤) to the home’s temperature.
The Lizard house
Like a lizard (蜥蜴), changing color with the weather is the most important design of a lizard house. When it’s in the bright sun, the cover of the house will turn dark to protect it from strong heat. During dark days, it turns white and takes in as much light and heat as possible to produce energy.
Meals at home
This design is perhaps as much about the future of food production as architecture (建筑风格). It has gardens on the outside wall of the house. People can plant tomatoes, carrots and green tea on them. So every day in the morning, you just need to walk outside and collect your meals.
Learning from the past
Looking to the future isn’t the only way to be green. Sometimes, ancient techniques (古老的技术) can also help cut down energy use. For example, a chimney (烟囱) can be a useful air conditioner because it is easier of hot air to flow out at the chimney.
【小题1】What is the best title (标题) of the passage?
A. Green house of the future.
b. The greener, the better.
C. How to build green houses.
D. Changes of the houses.
【小题2】We can heat water, produce electricity or create fresh air for the home            .
A. with the root of a leaf.
b. with the energy from sunlight.
C. with the soil under the ground
D. with gardens on its walls.
【小题3】What will happen to the cover of the lizard house when it’s in the bright sun?
A. It will take in light.
b. It will produce energy.
C. It will turn dark.
D. It will turn white.
【小题4】The passage seems to tell us that meals at home in the future            .
A. will be more delicious.
b. need more cooks.
C. cost as much as possible.
D. will be greener.
【小题5】A chimney can be a useful air conditioner but it used to cause          .
A. pollution.   b. accident.     C. noise.      D. techniques.

Steve Jobs, co-founder and former CEO of US technology giant Apple, has died at the age of 56. Mr Jobs had announced he was suffering from cancer in 2004. Apple said he had been "the source of countless innovations（创新）that enrich and improve all of our lives" and had made the world "immeasurably（无法衡量的）better".
Tributes(赞美之辞) have been made by technology company bosses and world leaders, with US President Barack Obama saying the world had "lost a visionary（有远见卓识的人）". "Steve was among the greatest of American innovators —— brave enough to think differently, bold enough to believe he could change the world, and talented enough to do it," said Mr Obama.
A statement from Mr Jobs's family said they were with him when he died peacefully on Wednesday. "In his public life, Steve was known as a visionary; in his private life, he loved his family deeply," they said, requesting privacy and thanking those who had "shared their wishes and prayers" during his final year.
Apple said the company had "lost a visionary and creative genius(天才) and the world have lost an amazing human being". Tim Cook, who was made Apple's CEO after Mr Jobs stood down in August, said his predecessor had left behind "a company that only he could have built, and his spirit will forever be the foundation of Apple". Flags are being flown at half mast outside the Apple headquarters（总部） in Cupertino, California, while fans of the company have left tributes outside Apple shops around the world.
The heads of other leading technology companies have also paid tribute, including Microsoft boss Bill Gates, who said "For those of us lucky enough to get to work with him, it's been a great honour. I will miss Steve very much."
Facebook founder Mark Zuckerberg thanks Mr Jobs for "showing that what you build can change the world" while Sony Corp president and CEO Howard Stringer said: "The digital age has lost its leading light." South Korea's Samsung, which is involved in a case with Apple over patents(专利), admired Mr Jobs for his "Completely new and different changes to the IT industry".
【小题1】Hearing of Steve Jobs’ death, the heads of other leading technology companies have paid tribute and __________.

A．shared the treasure with his family	B．suffered from the sad news
C．been involved in a case with Apple	D．spoken highly of him

【小题2】Obama made a speech at Steve Jobs’ death because _________________.
A. they had been friends for years
B. they had set up an excellent company
C Jobs had played an important role in the development of the IT industry
D. Jobs had changed Obama’s political(政治的) life
【小题3】 Who became Apple's CEO after Mr Jobs?

Today there are 6 billion people on the earth. By the year 2050 there may be 12.5 billion. There will be a lot of people to feed. We need more food.
One way to produce more food is by growing stronger plants. For thousands of years, farmers have made plants better. Every season, they pick the best plants for the next season. It works very slowly. Since 1983, scientists have been able to change plants more quickly by changing their genetic material(遗传物质). Foods from plants grown in this way are called genetically modified foods(转基因食品), or GM foods.
By changing the genetic material of a plant, it is possible to make new plants. They make plants which are strong against plant diseases. They can also help in our diseases: a kind of rice is being prepared, for example, which stops people from becoming blind.
Rich countries produce GM foods because they are easy to grow and bring in more money. Poor countries are interested in them because they help produce more food.
GM plants are not natural. No one knows how good or bad they are. Making GM foods is only one way of feeding people in 2050. There are strong feelings against them, because they are unnatural. They may feed people, then hurt them or their children later. But, both rich and poor countries are very interested in their use, and they are not going to go away. In 2050 we may think differently about them.
【小题1】GM foods ________.

A．are a quick way to produce food

B．grow in the wild

C．are safe

D．are grown only in rich countries

【小题2】Why do some people not like GM foods?

A．They are not useful.

B．They are not helpful.

C．They are not natural.

D．They are not cheap.

【小题3】From the reading we know that ________.

A．GM foods will disappear one day in the future

B．GM foods will not disappear in the future

C．people will not be interested in GM foods

D．people will have to stop using GM foods

Nearly all our food comes from the soil（土地）. Some of us eat meat, of course, but animals live on plants. If there were no plants, we would have no animals and no meat. So the soil is very necessary for life. The top of the ground is usually covered with grass or other plants. There may be dead leaves and dead plants on the grass. The waste matter（粪）from animals also falls on it.
All soil needs food. If we do not give it any, the plants will be weak. Farmers found that animals’ waste is the best food for the soil, but chemical fertilizers（化肥）are also very useful. The same crop（庄稼）should not be grown in the same place every year, it’s better to have a different crop. A change of crop and the use of a good fertilizer will keep the land good.
【小题1】Which of the following is true?

A．All our food comes from the soil.

B．Most of our food comes from soil.

C．None of our food comes from the soil.

D．All our food comes from animals.

【小题2】What does the writer tell us in the first paragraph?

A．Leaves, plants, grass and waste live on each other.

B．There would be no animals without meat.

C．There would be no plants without animals.

D．People, animals, plants and soil live on each other

【小题3】Which is the best food for soil in the field?

A．Chemical fertilizers.	B．Plants and grass.
C．Animals’ waste.	D．Different crops.

【小题4】Why do we often grow a different crop in the same place every year?

A．Because we can keep the soil rich this way.

B．Because we don’t have enough land.

C．Because we want to have a different food.

D．Because we do this as a habit（习惯）.

Germs(细菌) are everywhere. You can’t see them, but they are on your desk, on your computer, and even in the air!
Like people, germs move around the world. They fly with us on planes. When food, clothes, and other things travel around the world, germs travel, too. Some germs are safe, but some are dangerous. Germs cause illnesses like colds and the flu.
Warmer Weather Brings Germs
The world’s weather is changing. Cooler countries are getting warmer, so insects from hot countries can move there. Some of these insects, like mosquitoes, carry dangerous germs. These germs cause headaches, fever, and can even kill people.
Under Your Skin
Your skin protects you from germs. It stops some germs, but not all. They can enter your body when you eat, or when you have a cut. Germs are on your hands, too. They enter your body when you touch your eyes, nose, or mouth.
Fighting Germs
Your immune system(免疫系统) protects you, too. When germs get inside your body, your immune system finds and kills them. Special cells(细胞) move around your body and fight germs. They help you stay healthy. Other cells make antibodies(抗体). Antibodies help your body find and stop germs.
What can you do to fight germs? You should wash your hands with soap and water. Soap kills many germs, and water washes them away.
【小题1】According to the text, insects ______.
A. kill germs               B. carry germs              C. protect germs
【小题2】The underlined word “there” refers to ______.
A. cooler countries         B. hot countries          C. the world
【小题3】Which of the following is right according to the text?
A. All germs are dangerous.
B. There are more germs in cold places.
C. Germs can get into your body.
【小题4】What do antibodies do?
A. They get inside your body and kill your immune system .
B. They carry dangerous germs.
C. They help protect us from germs.
【小题5】Which can be the best title for this text?
A. Germs Are Everywhere B. Weather Is Changing     C. Skin Stops Germs

根据短文内容，选择正确的选项。
The world itself is becoming much smaller by using modern traffic and modern communication means(交流方式). Life today is much easier than it was hundreds of years ago, but it has brought new problems. One of the biggest is pollution. To pollute means to make things dirty. Pollution comes in many ways. We see it, smell it, drink it and even hear it.
Man has been polluting the earth. The more people, the more pollution. Many years ago, the problem was not so serious because there were not so many people. When the land was used up or the river was dirty in a place, men moved to another place. But this is no longer true. Man is now slowly polluting the whole world.
Air pollution is still the most serious. It’s bad to all living things in the world, but it is not only one kind of pollution. Water pollution kills fish and pollutes drinking water. Noise pollution makes us become angry more easily.
Many countries are making rules to fight against pollution. They stop the people from burning coal in houses and factories in the city, and from blowing dirty smoke into the air.
The pollution of SO2 is now the most dangerous problem of air pollution. It is mostly caused by heavy traffic. It is certain that if there are fewer people driving, there will be less air pollution.
The earth is our home. We must take care of it. That means keeping the land, water and air clean. And we must try to control the growth of population at the same time.
【小题1】Our world is becoming much smaller .

A．because the earth is being polluted day and night

B．because science is developing

C．because of the rise in population

D．because the earth is blown away by the wind every year

【小题2】Thousands of years ago, life was it is today.

A．much easier than	B．as easy as
C．as hard as	D．much harder than

【小题3】Pollution comes in many ways. We can even hear it. Here “it” means .

A．water pollution	B．air pollution
C．noise pollution	D．rubbish

【小题4】What is the most dangerous problem of air pollution?

【小题5】Air pollution is the most serious kind of pollution because .

A．it’s bad to all living things in the world

B．it makes much noise

C．it has made our rivers and lakes dirty

D．it makes us become angry more easily

Rivers are one of our most important natural resources(资源). Many of the world’s great cities are located on rivers, and almost every country has at least one river running through it that plays an important part in the lives of its people.
Since the beginning of history, people have used rivers for transportation. The longest one in the United States is the Mississippi. The lifeline of Egypt is the Nile. To the people of India, the Ganges is great, but it is also important for transportation; ships can travel along it for a thousand miles. Other great rivers are the Congo in Africa and the Mekong in southeastern Asia. The greatest of all for navigation（航海）, however, is the Amazon in Brazil（巴西）. It is so wide and so deep that large ships can go about two thousand miles up it.
Besides transportation, rivers give food to eat, water to drink, water for crops, and chances for fun. In order to increase the supply(供给) of water for crops, engineers sometimes build a dam (大坝)across a river and let a lake form behind the dam. Then people can use the water not only to irrigate(灌溉) their fields but also to make electricity for their homes and industries.
However, large cities and industries that are located on rivers often cause problems. As the cities grow in size and industries increase in number, the water in the rivers becomes polluted with chemicals and other materials. People are learning the importance, however, of doing more to keep their rivers clean if they want to enjoy the benefits of these natural resources.
【小题1】The greatest river for navigation is ________________.

A．the Mississippi	B．the Nile
C．the Mekong	D．the Amazon

【小题2】Which is NOT true according to the passage?

A．Many cities are located on rivers.

B．Almost every country has at least one important river.

C．The Nile is in India.

D．Rivers play an important part in the lives of people.

【小题3】When rivers are dammed, people use the water for __________.

A．keeping the rivers clean

B．making electricity

C．washing clothes

D．irrigation and the production of electricity

【小题4】Most water in rivers is polluted with ___________.

A．people’s drinking water too much

B．people’s swimming in the river too much

C．chemicals and other materials

D．people’s building a dam across a river

【小题5】The best title for the passage is _____________.

A．The Importance of Rivers	B．Rivers in Cities
C．Transportation	D．Natural Resources

Scientists are very interested in the Universe，and they always want to know more about it. Years ago they knew many things about the moon. They knew how big it is and how far away it is from the earth. But they wanted to know more about it. They thought the best way was to send men to the moon. The moon is about 384,000 kilometers away from the earth. A plane cannot fly to the moon because the air reaches only 240 kilometers away from the earth. But something can fly even when there is no air. That is a rocket(火箭)
How does a rocket fly? There is gas（气体） in the rocket. When the gas is made very hot inside the rocket, it will rush out of the end of the rocket, so it can make the rocket fly up into the sky. Rockets can fly out into space. Rockets with men in them have been to the moon. Several rockets without men in them have flown to another planet(行星) much farther away than the moon. One day, rockets may be able to go to any place in space.
【小题1】Scientists knew ____________ the moon is.
A: how far    B: how big    C: how old    D: both A and B
【小题2】 The earth is about 384,000 kilometres away from the _____.
A: space    B: universe    C: sun   D: moon
【小题3】A plane cannot fly to the moon because ___________
A: there is no air above 240 kilometers away from the earth.
B: there is no gas in the plane
C: the plane is not strong enough
D: the plane can not fly a long way
【小题4】 The hot gas in the rocket is used for___________
A: keeping the air in the rocket fresh(新鲜的)
B: Keeping the men in the rocket warm
C: making the rocket fly up.
D: cooking food for the men
【小题5】 What is the writer’s attitude(态度) to the universe’s future.
A: Realistic(现实的)         B: Imaginative(幻想的)
C: Confident(有信心的)      D: Sad

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