题目内容

The soil __________down into the rivers when it rains.

A.
carried out
B.
is carried away
C.
carries off
D.
are carried out of

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Animals like the lion are known as carnivorous (meat-eating) animals. They feed on smaller animals. But many other animals eat grass or plants. They are called herbivorous (plant-eating) animals.
You may be surprised to learn that there are carnivorous plants as well as carnivorous animals. Plants that grow in poor soil need other food. They trap (catch by a trick) small insects (昆虫) and take their bodies as food.
The pitcher plant (猪笼草) is a common carnivorous plant. This plant has a clever trap like a pitcher or jar. It even has a lid to keep out of the rain. The mouth of the pitcher is covered with something sweet like honeydew(蜜露). Insects come to the plant to feed on the honeydew. When they have eaten all that is round the mouth, they go into the pitcher to look for more. There is more honeydew deep in the pitcher and they go down to feed on it. The inner wall of the pitcher is covered with fine hairs. These hairs point downwards so that the insects cannot climb out of the pitcher. They are trapped in it. They die there, and their bodies are taken as food by the plant.
【小题1】Animals are divided into two kinds.

A．carnivorous animals and meat-eating animals

B．herbivorous animals and plant-eating animals

C．carnivorous animals and herbivorous animals

D．meat animals and plant animals

【小题2】Which of the following is NOT true?

A．Tigers, lions and other meat-eating animals are called carnivorous animals.

B．Zebras, elephants and common farm animals are known as herbivorous animals.

C．All plants get food only from the soil.

D．It is something like honeydew in the pitcher that insects come to food on.

【小题3】From this passage, we can mainly learn that .

A．Not all plants are carnivorous

B．All plants are herbivorous

C．Not all animals are carnivorous

D．Carnivorous plants can also be found

【小题4】The text mainly talks about ___________________.

A．carnivorous animals	B．herbivorous animals
C．small insects	D．pitcher plants

【小题5】What kind of magazine can we find the text?

We use an average of 158 liters of water a day in Britain, for which we pay a bargain price of 28p a liter, but much of this is just cash down the drain, according to water companies.
Most are campaigning to cut the amount we use. And the frontline weapon in their campaign is the water meter (计量器). They want us all to have one and one company is seeking powers to make this compulsory.
The Government is anxious for us to use less water, too. Elliot Morley, the Environment Minister, says he is impressed by the savings when a meter is installed. In most homes, consumption drops by 20 percent.
He also thinks consumers get a good deal from meters. He said, “Most people would find that they would either be exactly the same or better off with water meters and it is a fairer way of paying for water.”
At present, only 25% of households have meters and most of those are in East Anglia. They are installed by water companies, and households then have about ￡43 added to each bill to cover the cost of installing and reading the meter.
Barrie Clarke, a spokesman for Water UK, said, “We want everyone to be more water wise—to think about the amount of water they use. But with our climate change and different weather patterns, over time it will make economic and environmental sense to think how we use water. This may mean meters.”
Mr. Clarke believes the easiest way to save water is to use less in the garden. In one hour, a sprinkler uses the same amount of water as the average family of four uses in a day—about 632 liters. He said that gardeners should water in the evening so that it dose not evaporate in the heat of the day and that every household should have a water butt to collect rainwater for use in the garden.
【小题1】Which of the following is NOT the advantage of installing water meters?

A．Water consumption drops.

B．It’s fairer to pay for water.

C．They’re installed for free.

D．People are more water wise.

【小题2】The passage implies that ________.

A．water meters are welcome by British people

B．people will be better off with water meters

C．everyone has become wiser to use water now

D．saving water is both good to economy and environment

【小题3】How many liters of water does an average family of four use in a day after installing a meter in Britain?

A．about 126 liters	B．about 158 liters
C．about 506 liters	D．about 632 liters

【小题4】The underlined word “evaporate” in the last paragraph means _________.

A．change into steam and disappears

B．absorb the heat of the day

C．sink into the soil

D．turn into ice

【小题5】According to Mr. Clarke, some good ways to save water are as follows EXCEPT ________.

A．using less on the garden

B．using a sprinkler

C．watering in the evening

D．gathering rainfall for garden use

Most kinds of rose plants come from Asia. But roses are also native to other areas including northwest Africa, Europe and the United States. In 1986, Congress chose the rose as America’s national flower. Technically, Congress and President Ronald Reagan declared it the “national floral emblem.” Whatever the name, the decision did not smell sweet to supporters of others popular flowers.

Some people say roses are difficult to grow. But you have a good chance of success if you start with a few suggestions from experts. You should plant your roses where they can get sunshine for about six hours on bright days. You can buy roses form a garden center or by mail order. You can buy potted roses, also known as container roses, or bare-root plants. Each kind has its fans.

Some gardeners say potted roses are easier to plant. They say the roots develop better. But Jeffrey Dinslage, an expert, pint out that bare-root roses come without soil. So they weigh less to transport.

Another expert advises getting bare-foot roses as close to planting time as you can. If they arrive before you are ready to plant them, make sure the packing material is moist. Keep the plants in a cool, dark place. The resting plants have no leaves but still need water. When growing roses, the soil should feel moist deep down. Watering should be done in the morning.

But do not water too much. People often ask Jeffrey Dinslage about unhealthy discoloration on rose leaves. He says the spots are usually caused by too much water. After heavy rains or too much watering, he advises pulling away mulch, the substance used to protect the roots, temporarily from around the roots. This will help dry the soil.

1.From the first paragraph, we know that in the United States _______.

A. all the people like roses B. there are a lot of national flowers

C. some roses don’t smell sweet D. there are some other popular flowers

2.Why does Jeffrey Dinslage suggest planting bare-root roses?

A. They are easier to plant. B. Their roots develop better.

C. They are cheap to transport D. Their leaves need no water

3.Which of following is closest in meaning to the underlined word “moist”?

A. Slightly wet. B. Pretty dry. C. Too hard. D. Lightly soft.

4.According to Jeffrey Dinslage, people should ______ to avoid the spots on the rose leaves.

A. not water roses in the morning B. protect the roots of roses

C. improve the quality of the soil D. not water roses very much

In South America, the rich soil of the Amazon River basin（流域）in Brazil is known as “black gold”. Scientists found that the secret of this rich soil was charcoal（木炭）. Local people made it from animal bones and tree branches. They mixed the charcoal with the soil about 1.500 years ago.

Now, scientists in the United States have done a modern demonstration. They say charcoal fertilization offers a revolutionary way to improve soil quality for hundreds or even thousands of years.

Mingxin Guo and his team at Delavare State University heated tree leaves, corn stalks（茎）, small pieces of wood and poultry waste into “biochar”（生物碳）. They reported their findings at a recent meeting of the American Chemical Society in New Orleans.

Biochar could be good news for farmers with poor soil and hungry populations to feed. Professor Guo says it could even help against global warming. Intensive（集约的） farming and overuse of chemical fertilizer give out carbon dioxide into the atmosphere. Biochar does the opposite, he says. It traps carbon in the ground.

The researchers planted winter wheat in containers of soil in a greenhouse — some with biochar, some without. Professor Guo says the wheat grows much better in the pots with biochar. The soil was added two percent charcoal to. But he says even a one percent treatment will increase productivity.

The results demonstrated that biochar can increase organic matter in soil. Loss of nutrients in soil is an increasing problem worldwide as farmers try to grow more food for growing populations.

Next, the team will carry out a five-year study of biochar with spinach（菠菜）, green peppers and tomatoes.

Mingxin Guo says he learns about the “black gold” in Brazil from a magazine story. He explains that it was discovered in the jungle, in the area where waters flow to the Amazon, in the 1960’s. But it was not until recent years that scientists began to bring public attention to it.

1.According to the passage, which of the following statements is TRUE?

A．The researchers will go on proving their theory.

B．The leading researcher learns the theory from the magazine.

C．Charcoal was discovered 1,500 years ago.

D．Common farming can produce more carbon dioxide.

2.Biochar has the following advantages EXCEPT that ________.

A．it can improve the condition of the soil

B．it can be used as a kind of energy

C．it can help against global warming

D．it can increase productivity of the corn

3.According to the research, the biochar can help against global warming because it can ________.

A．reduce the carbon dioxide

B．keep the carbon in the soil

C．reduce the loss of nutrients in the soil

D．absorb the carbon dioxide

4.Which of the following can be the best title of the passage?

A．Using Charcoal to Make soil into “Black Gold”

B．Using Charcoal to Reduce the Carbon Dioxide

C．How Amazon River Basin Produces “Golden Black”

D．Guo’s Research on Producing Biochar

Some plants get so hungry they eat flies, and even small frogs. What's more amazing is that these plants occur naturally (in special environments) in every state. In fact, they're found on every continent except Antarctica.

You've probably seen a Venus' flytrap -- a small plant, which grows 6 to 8 inches tall in a container. At the end of its stalks (茎) are leaves that act like traps (陷阱). Inside each trap is a lining of tiny hairs. When an insect lands on them, the traps suddenly shut. Over the course of a week or so, the plant feeds on its catch.

The Venus' flytrap is just one of more than 500 species of meat-eating plants, says Barry Meyers-Rice, the editor of the International Carnivorous Plant Society's Newsletter. He states although you might have read some science-fiction stories, no meat-eating plant does any danger to humans.

Barry says a plant is meat-eating, only if it does all four of the following: "attract, kill, digest, and absorb" some form of insects. Meat-eating plants look and act like other green plants -- well, most of the time.

All green plants make sugar to produce food. What makes meat-eating plants different is their special leaves, which need insects for one reason: nitrogen (氮). Nitrogen is a nutrient that they can't obtain any other way. Why?

Almost all green plants on our planet get nitrogen from the soil. Meat-eating plants can't. They live in places where nutrients are hard to get from the soil because of its acidity. So they've come to rely on getting nitrogen from insects and small animals. In fact, nutrient-rich soft is poisonous to meat-eating plants. Never fertilize (施肥) them! But don't worry, either, if they never seem to catch any insects. They can survive, but they'll grow very slowly.

1.According to the passage, a Venus' flytrap ______.

A．is a small plant which grows in a container

B．is a kind of plant which gets hungry easily

C．can trap and feed on some form of insects

D．can only grow 6-8 inches tall

2.From the passage, we can infer that ______.

A．meat-eating plants are found nowhere else except Antarctica

B．all green plants get nitrogen from the soil

C．meat-eating plants endanger humans in science-fiction stories

D．the nutrient-poor soil is beneficial to meat-eating plants

3.Meat-eating plants grow very slowly, ______.

A．so you'd better fertilize them

B．probably because the supply of nitrogen is cut off

C．simply because they can't absorb nitrogen from the soil

D．and then they will die slowly

4.Which of the following is true?

A．Meat-eating plants look and act like other green plants.

B．It's hard to get nutrients in the soil when acidity is high.

C．The Venus' flytrap eats flies to get nutrient from them.

D．Green plants make sugar at night.

The soil __________down into the rivers when it rains.

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