. The flowers now raised here have developed from those ________ in the forest.

A．once they grewB．they grew onceC．that once grewD．once grew

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科目：高中英語(yǔ) 來(lái)源： 題型：閱讀理解

　　For years scientists have been worried about the effects of air pollution on the earth’s natural conditions. Some believe the air inside many houses may be more dangerous than the air outside. It may be one hundred times worse.

　　Indoor air pollution can cause a person to feel tired, to suffer eye-pain, headache and other problems. Some pollutants（ 污染 物） can cause breathing disorders, diseases of blood and even cancer, Most scientists agree that every modern house has some kind of indoor pollution. People began to notice the problem in the early 1970s. It is that when builders began making houses and offices they did not waste energy. To do this they built buildings that limited the flow of air between inside and outside. They also began using manmade building materials. These materials are now known to let out harmful gases. As the problem became more serious, scientists began searching for a way to deal with it. They discovered a natural pollution control system for building— green plants. Scientists do not really know how plants control air pollution. They believe that a plant’s leaves absorb or take in the pollutants. In exchange the plant lets out oxygen through its leaves and through its tiny organizations on its roots. Scientists suggest that all buildings should have one large plant or several small plants inside for every nine square metres of space. Studies of different plants show that each absorbs different chemicals. So the most effective way to clean the air is to use different kinds of plants. Having green plants inside your house can make it a prettier and more healthy place.

　　Generally speaking, indoor air pollution may be more harmful than the air outside because ________.

　　A. the man - made building materials let out dangerous gases inside houses

　　B. there may be more harmful gases outside houses

　　C. the flow of air indoors is limited

　　D. indoor air pollution can make a person seriously ill

　　The most effective way to clean the air is to use different kinds of plants because________.

　　A. they may let out more oxygen which people need

　　B. they can absorb different kinds of the harmful indoor chemicals

　　C. they can take in all kinds of indoor pollutants

        D. they can make your house prettier and more healthy

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科目：高中英語(yǔ) 來(lái)源： 題型：

It is pretty well understood __________controls the flow of carbon dioxide in and out the atmosphere today.

A.that                  B.when             C.what                D.how 

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科目：高中英語(yǔ) 來(lái)源： 題型：閱讀理解

   Imagine a mass of floating waste is two times the size of the state of Texas. Texas has a land area of more than 678 000 square kilometers. So it might be difficult to imagine anything twice as big.

    All together, this mass of waste flowing in the North Pacific Ocean is known as the Great Pacific Ocean Garbage Patch. It weighs about 3 500 000 tons. The waste includes bags，bottles and containers—plastic products of all kinds.

    The eastern part of the Great Pacific Ocean Garbage Patch is about l 600 kilometers west of California. The western part is west of the Hawaiian Islands and east of Japan. The area has been described as a kind of oceanic desert，with light winds and slow moving water currents. The water moves so slow that garbage from all over the world collects there.

    In recent years，there have been growing concerns about the floating garbage and its effect on sea creatures and human health. Scientists say thousands of animals get trapped in the floating waste，resulting in death or injury. Even more die from a lack of food or water after swallowing pieces of plastic. The trash can also make animals feel full，lessening their desire to eat or drink.

    The floating garbage also can have harmful effects on people. There is an increased threat of infection of disease from polluted waste，and from eating fish that swallowed waste. Divers can also get trapped in the plastic.

    Its existence first gained public attention in l997. That was when racing boat captain and oceanographer Charles Moore and his crew sailed into the garbage while returning from a racing event. Five years earlier，another oceanographer learned of the trash after a shipment of rubber duckies got lost at sea. Many of those toys are now part of the Great Pacific Ocean Garbage Patch.

    In August，2009，a team from the University of California，San Diego became the

latest group to travel to it. They were shocked by the amount of waste they saw. They gathered hundreds of sea creatures and water samples to measure the garbage patch’s effect on ocean environment.

How did the writer introduce the topic of the passage?

   A. By giving an example.         B. By listing the facts.

   C. By telling a story.             D. By giving a comparison.

What do we know about the Great Pacific Ocean Garbage Patch?

   A. It is made up of various kinds of plastic products.

   B. It is a solid mass of floating waste materials.

   C. It lies l60 000 kilometers east of California.

   D. It is described as a kind of oceanic desert.

Why do people pay attention to the Great Pacific Ocean Garbage Patch?

   A. Because it may prevent the flow of ocean water.

   B. Because the polluted plastic articles will move up the food chain.

    C. Because it may be from an island in the pacific.

    D. Because ships may be trapped in the floating waste.

Which column can you find the passage on a newspaper?

    A. Sports and entertainment.            B. Media and culture.

    C. Environment and society.             D. Science and technology.

The purpose of writing this passage is to____________.

    A. warn people of the danger to travel in the pacific

    B. analyze what caused the waste patch in the pacific

    C. give advice on how to recycle waste in the ocean

D. introduce the Great Pacific Ocean Garbage Patch

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科目：高中英語(yǔ) 來(lái)源：2015屆吉林省長(zhǎng)春外國(guó)語(yǔ)學(xué)校高二上學(xué)期期中考試英語(yǔ)試卷（解析版） 題型：閱讀理解

Scientists know of more than 1,000 volcanoes on the surface of Venus, Earth’s “sister” planet. A big question has been: Are they still active? The scientists say yes.

Their evidence for recent volcanic activity on Venus comes from a lava (熔巖) flow in the planet’s northern hemisphere. The flow is hotter than the rocks around, which means the lava might still be cooling off. “The flow we studied seems to be very young---it is still warm inside,” Nataliya Bondarenko said.

Venus is a difficult planet to study from Earth because it is surrounded by thick clouds. Telescopes on Earth can’t see through these clouds, so the best information about Venus comes from spacecraft orbiting it.

Bondarenko and her colleagues studied the lava flow using data from NASA’s Magellan mission. That spacecraft spent four years in orbit around Venus and used radar to make a map of 98 percent of the planet’s surface. On October 11th, 1994, the mission ended, and the spacecraft plunged (跌落) through Venus’ heavy cloud cover and crashed onto the planet below.

While in orbit, the Magellan craft sent microwaves, which can go through Venus’ clouds, to the surface. Microwaves are invisible and can be as long as three feet. These waves are a kind of energy, like light. And like light, they bounce off surfaces. The way the waves bounced off the Venus’ surface and back to the craft supplied information that the scientists used to estimate the temperature of various parts of the planet’s surface. Bondarenko’s team found that the lava flow was hotter than its surroundings---which may mean the lava flow is in the process of cooling.

The scientists say the lava flow can’t be very old because if it were, it would have cooled off enough that Magellan wouldn’t have noticed the difference in microwaves. She adds that the flow appears in a 1978 view of the surface that a craft called the Pioneer Venus Orbiter captured.

1.What happened to Magellan in the end?

A. It was floating in space forever.

B. It flew into heavy clouds.

C. It returned to the Earth.

D. It fell onto Venus.

2.How could Bondarenko judge the temperature of the Venus?

A. By looking at it with a powerful telescope.

B. By measuring the thickness of clouds over Venus.

C. By calculating the microwave bouncing off Venus’s surface.

D. By orbiting Venus for 4 years in a spacecraft.

3.The best title for the passage may be “______ ”.

A. Warm lava on Venus                 

B. More volcanic eruptions on Venus

C. Venus is just like a big active volcano           

D. Lava flows are first found on Venus

 

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科目：高中英語(yǔ) 來(lái)源：2011-2012學(xué)年四川省高考適應(yīng)性考試（一）英語(yǔ)試卷（解析版） 題型：閱讀理解

American beekeeping operations have been hit hard by what scientists call colony collapse disorder(C.C.D.). Almost half of their worker bees have disappeared during the past season. C.C.D. has also been reported in Israel, Europe and South America. Bees fly away from the hive and never return. Sometimes they are found dead; other times they are never found. Many crops and trees depend on pollination （授粉） by bees to help them grow.

A new report says virus may be at least partly responsible for the disorder in honey bee colonies in the United States. This virus is called Israeli acute paralysis virus. It was first identified in Israel in 2004. Ian Lipkin at Columbia University in New York and a team reported the new findings in Science magazine. Doctor Lipkin says the virus may not be the only cause. He says it may work with other causes to produce the collapse disorder.

The team found the virus in colonies with the help of a map of honey bee genes that was published last year. They examined thirty colonies affected by the disorder. They found evidence of the virus in twenty–five of them, and in one healthy colony. The next step is further testing of healthy hives.

The researchers suggested that the United States may have imported the disorder in bees from Australia. They say the bees may carry the virus but not be affected.

The idea is that unlike many American bees, the ability of Australian bees to fight disease has not been hurt by the varroa mite（全球性的蜂虱）. This insect attacks honey bees, which could make the disorder more likely to affect a hive. Australian bee producers reject these suspicions.

And some researchers suspect that bee production in the United States is down mainly because of the weather. Honey bees gather nectar（花蜜） from flowers and trees. The sweet liquid gives them food and material to make honey. But cold weather this spring in the Midwest reduced the flow of nectar in many flowers. Many bees may have starved. Dry weather in areas of the country could also be playing a part.

Wayne Esaias is a NASA space agency scientist who keeps bees in his free time. He lives in central Maryland, where he has found that flowers are blooming a month earlier than they did in 1970, which may be partly responsible for the disorder. Wayne Esaias is organizing a group of beekeepers to document nectar flow around the country.

1.The researchers found the virus ______.

A．with the help of colony collapse disorder

B．by researching the causes of bee death

C．with the help of a map of honey bee genes

D．with the help of a scientist of NASA

2.What is the passage mainly about?

A．American beekeeping industry has been strongly influenced by the bee disorder.

B．Studies are being carried out on the causes of the bee disorder, but questions remain.

C．How the causes of the bee disorder in U.S have been found.

D．The bee production in U.S is down because of Israeli acute paralysis virus.

3.How many possibilities may be involved in the bee disorder according to the passage?

A．Three.

B．Four.

C．Five.

D．Six.

4.We can infer from the passage that ______.

A．Israeli acute paralysis virus should be responsible for the disorder

B．the solution to the bee disorder will be found eventually

C．American bees are more likely to defend themselves than Australian bees

D．the crop and plant production in U.S may be influenced by the bee disorder

 

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