Plants are the true fairies__1__are forever working wonders around us. Their roots di

T ______.

A．they are eager to build new nuclear power plants

B．they have totally forgotten the Chernobyl accident 25 years ago

C．they have improved their nuclear power plants

D．they want energy independence

ome industries we can see a movement towards increasing economies of scale.In other words,the minimum size of plant or the most economic size of plant is getting larger and larger.

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A.About 2 million rnetfic tons of garbage is burned in some power plants in Paris， France each year.

B.In a modem society， more and more garbage is produced each year.

C.Using garbage is a good way to solve the problem of energy shortage.

D.It will be too expensive to use garbage as an energy source.

When you hear the word “farm”, you may imagine the countryside with cows and crops. But scientists say the farm of the future could be built in tall buildings in some large cities.

It may be difficult to believe, but in fact, the technology for growing crops indoors already exists. Farming in the city is already happening. Some vegetables are already grown in greenhouse. Even the scientists at the South Pole research station can enjoy fresh vegetables they grow in their own greenhouse.

Experts say indoor farming solves many problems. First, traditional farming takes up a lot of land. Growing crops in tall buildings—called vertical farming(垂直农业)—can solve the problem. Also, fruits and vegetables grown indoors would not face serious threats from insects and bad weather.

Though vertical farms don’t exist yet, experts have created a plan for recycling in such farms. The water from indoor fish ponds would be used to water chicken or pigs would be reused as a source of energy.

But experts believe vertical farming is not going to be easy. They say it can be difficult to control climate conditions indoors. Besides, plants differ in their weather and lighting needs. For example, some plants like warm, sunny weather, but other plants prefer cooler temperature.

That’s not to say these difficulties won’t be overcome—but it will take time. Most experts suggest it may take about 5 to 15 years before the first vertical farms could be created.

1. The word “farm” may make you think of the countryside.

A. True B. False C. Not Given

2. It is still a dream for people to grow crops indoors.

A. True B. False C. Not Given

3. Scientists at the South Pole research station live a hard life.

A. True B. False C. Not Given

4. Vertical farming does not need as much land as traditional farming.

A. True B. False C. Not Given

5. Fresh fruits and vegetables are very expensive in cities.

A. True B. False C. Not Given

6. Crops grown indoors would not be badly harmed by insects.

A. True B. False C. Not Given

7. Scientists do not know how to reuse the animal waste in vertical farms.

A. True B. False C. Not Given

8. Some experts say vertical farming could be difficult.

A. True B. False C. Not Given

9. Indoor plants need the same weather and lighting.

A. True B. False C. Not Given

10. The first vertical farms appeared 5 years ago.

A. True B. False C. Not Given

meal of good，thick paper，old letters, for example.She doesn't like newspapers very much.

Of course，the best paper comes from wood.Wood comes from trees，and trees are plants.Vegetables and fruit and plants too，and we eat a lot of them.So can we also eat wood and paper？

Scientists say，"All food comes in some way from plants." Well，is that true？ Animals eat grass and grow fat.Then we eat their meat.Little fish eat little sea-plants; then bigger fish swim along and eat the...Chickens eat bits of grass and give us...Think for a minute.What food does not come from plants in some way？

Scientists can do wonderful things with plants.They can make food just like meat and cheese.And they can make it without the help of animals.It is very good food too.Now they have begun to say，"We make our paper from wood.We can also make food from wood.The next thing is not very difficult." What is the next thing？ Perhaps it is-food from paper.Scientists say，"We can turn paper into food.It will be good，cheap food too; cheaper than meat or fish or eggs."

So please keep your old books and letters.Don't feed them to your cat.) One day，soon，they will be on your plate.There is nothing like a good story for breakfast.

1、The best paper come from Wood.()

2、From the passage，we can infer 推断) thatfew kinds of food do not come from plants in some way.()

3、The main idea of the passage is all food comes from plants in some way.()

4、The writer asks us to keep our old books and letters because we can make food from them soon.()

5、The best title for the passage is " Food from Plants ".()

y, eco-friendly rain gardens are healthy for the environment and the people living and working nearby.

A rain garden is not very different from a traditional garden. It is just a far more eco-friendly garden. Usually it is built lower than the ground. Rain gardens make smart use of rain and storm water by temporarily holding water from rain and storms and letting it soak(渗透) slowly into the ground before it runs into streams or enters the public drinking water supply.

Thus, a rain garden keeps the water，allowing it to be used as needed by plants in the rain garden, rather than flowing immediately into nearby streams and going unused. The water will soak slowly into the ground within a day or two. This creates an advantage that the rain garden does not allow mosquitoes to breed. This is a simple, attractive, and eco-friendly “green” way to treat storm water.

What’s more, planting a rain garden helps reduce pollution and improve the environment. Without using expensive machinery and chemicals, rain gardens remove harmful chemicals in the rainwater and cut down on the amount of pollution reaching streams and rivers by up to 30%.

Native plants are recommended for rain gardens because they are more used to the local climate, soil, and water conditions. They may attract local wildlife such as native birds. Water your rain garden immediately after planting and once a week, unless you have had at least an inch of rain during the week. Once native plants establish the necessary root system，they will require little care.

Often，local governments and private businesses develop large rain gardens in their yards and in public parks as a way to improve the environment and solve flooding problems. However, you don’t need to be a professionally environmental engineer to create a rain garden. As long as you’re eco­conscious homeowners，you can help the environment by building smaller rain gardens in your yards.

B-21.Which of the following is NOT true for the function of rain gardens？

A、They are good for living conditions.

B、They increase pollution.

C、They can beautify the community.

D、They improve the environment.

22阅读B-21题干中Passage Two材料，完成本题。

B-22. Which of the following is the eco-friendly function of rain gardens discussed in Paragraph 4？

A、They can help reduce the pollution problem.

B、They can keep the rain and storm water.

C、They can be healthy for the people around.

D、They can make the environment more beautiful.

e answer is no.Actually, it is the processing of tea that finally decides the tea types.For example, black tea requires 100% oxidation and green tea requires almost no oxidation.So tea processing is quite an important factor in the production of tea.Anyway, the normal processing of tea includes the following four basic steps:

1.New leaves are spread in order to reduce water content until they are pliable enough to be rolled.This process is called withering.

2.The second step is rolling the withered leaves.Oils and extra moisture are released.This process can be done with machinery or by hand.

3.The third step is called oxidation or fermentation.In this process the leaves turn from green to bright copper in colour.This step decides what type of tea we want.

4.The last step is drying the leaves to stop the oxidation process.The leaves should be dried thoroughly without burning.

Decide each statement is T (true) or F (false) based on Passage B.

6.The processing of tea decides the tea types.

7.Green tea requires a little oxidation.

8.Withering makes the tea leaves release oils and water.

9.Rolling the withered leaves can be done only with machinery.

10.Burning the leaves is the last step of tea processing.

he outside temperature is low. In a similar way there are several gases in the atmosphere which trap(捕捉)the heat produced by the sun and prevent it from escaping. These gases are known as"greenhouse gases"，and the way in which they trap heat in the atmosphere is called the "greenhouse effect". This is not simply air pollution. Most of the main greenhouse gases exist naturally in small amounts in our atmosphere, and without them earth would be 30 degrees colder and human life would not exist. In other words, the greenhouse effect is a natural course which is to some degree helpful to us.

The problem is that in the last century and a half, we have been putting too many of these gases into the earth's atmosphere by burning large quantities of coal and oil and by cutting down forests. The rapid increase in greenhouse gases is making the world warmer. The world's temperature has already gone up by half a degree this century, and the sea level has risen by 10 centimetres. If the amount of carbon dioxide(二氧化碳)in the atmosphere doubles, there will probably be a rise in the earth's temperature of between 1 and 4 degrees. This may seem a small increase, but it would be enough to cause major changes in geography and agriculture. Large areas of the world would be flooded, and some areas would become dry and unable to produce crops. It is important, too, to consider that there may be a delay of about 30 years in the greenhouse effect. This means that we are probably experiencing only now the effect of the gases put into the atmosphere before the 1960s. Since then, our use of these gases has greatly increased.

1. The"greenhouse effect"means _____.

A. the way in which gases are used for keeping plants warm

B. a natural course which is some degree helpful to us

C. the way"greenhouse gases"trap heat on the earth

D. the whole course in which greenhouse gases prevent heat

2. If there were no greenhouse effect, _____.

A. no plants would grow on our planet

B. earth would be thirty degrees colder

C. man could not live on the earth

D. All of the above answers are correct

3. Which of the following is NOT true？ _____

A. Burning too much coal and oil produces lots of greenhouse gases.

B. It has become warmer on the earth now than in the past.

C. Gases put into the atmosphere now will affect the earth years later.

D. The temperature in a greenhouse is as high as that in the atmosphere.

4. Suppose the earth's temperature rose by 3 degrees, _____.

A. great harm would be done to mankind

B. the sea level would go by 10 centimetres

C. all the land in the world would be flooded

D. crops would be unable to grow on the earth

5. This passage mainly deals with _____.

A. the concept(概念)and harm of greenhouse effect

B. the relation between greenhouse gases and man

C. the concept and change of greenhouse effect

D. the effect of the rise of the earth's temperature

animals can be preserved in the natural state for all time.And we need parks as a retreat (休养所) from the crowded bustling life of cities.Our record for conservation (自然资源保护) is poor.Half of the animal species existing at the time of Captain Cooks arrival are now extinct(灭绝).Australia has wildlife (野生生物) that is not found in the native state in any other part of the world.This wildlife is therefore of particular scientific value.In New South Wales, the National Parks and Wildlife Service is responsible for the care of out native plants and animals in their natural environment.One of the aims of this service is to educate people in the need for conservation.The service also provides facilities for recreation (娱乐) in parks and wilderness areas throughout the state.A UNESCO (联合国教科文组织)study stated that a country should strive to retain 5 percent of its land as national parks.Australia at present is below this figure but there is a community awareness of the need to increase it and new areas are being proclaimed almost annually.In the years to come, our national parks will be one of our most valuable assets.As our population grows and our cities become more crowded，parks will become vital as retreats from the pressures of modern urbanized living.

1.Judging from the passage，when Captain Cook first arrived in Australia，________.

A.Australia began its historical record

B.conservation in Australia as already poor

C.there were not so many animal species as now

D.there were twice as many animal species as now

2.In the last line of the second paragraph，the state refers to ________.

A.Australia

B.the native state

C.New South Wales

D.the National Parks and Wildlife Service

3.According to the passage，all the following statements are true except________.

A.All of Australias wildlife can be found in other parts of the world

B.It is the job of the National Parks and Wildlife Service to look after the native plants and animals

C.Now Australia has less than 5 percent of its land as national parks

D.At present，the number of national parks in Australia is steadily increasing

4.The word retain in the third paragraph is closest in meaning to ________.

A.regard

B.keep

C.sell

D.add

5.According to the passage，national parks in Australia are important for ________.

A.the benefits of both the wildlife and the people

B.the annual income of the government

C.UNESCO study and research

D.the scientific value of the National Parks and Wildlife Service

re is a strong wind. The sea is very big. It covers three quarters of the globe! The sea is also very deep in some places. There is one spot near the Philippines , where the sea is about 11 kilometers deep. The highest mountain in the world is about 9 kilometers high. If that mountain was put in the sea at that place, there would still be 3 kilometers of water above it! What a deep place! In most parts of the sea, there are plenty of fishes and plants. Some live near the top of the sea. Others live deep down. There are millions of tiny living things that float in the sea. Many fish live by eating them. The sea can be very cold. When the diver goes downwards, the sea becomes colder and colder. When the diver goes deeper, the water exerts greater pressure.

1、There is one spot near the Philippines, where the sea is as deep as ().

A、13 kilometers

B、 9 kilometers

C、 2 kilometers

D、 11 kilometers

2、There are millions of tiny living things that float in the sea, and().

A、they live by eating fish

B、they live by eating plants

C、they are good food for many fish

D、they live by eating worms

3、Which of the following statements is true？ ()

A、When the diver dives under the sea, he gets colder and colder.

B、When the diver sinks to the bottom, he is to be colder and colder.

C、When the diver sinks in the sea, he will be rather cold.

D、When the diver dives downward, the sea gets colder and colder.

4、From the information given, why has the diver to wear a diving suit？ ()

A、Because the diver is likely to be attacked by fish.

B、 Because the water at great depths is very cold.

C、 Because the salt water seems unsuitable for diver.

D、 Because the pressure of water at great depths is immense (巨大的 ).