Witout the air to hold some of the sun’s heat...

Witout the air to hold some of the sun’s heat, the earth at night ________, too cold for us to live.

A．would be freezing cold                B．will be freezing coldly

C．would be frozen cold        D．can freeze coldly

高三英语单项填空中等难度题查看答案及解析

Without the air to hold some of the sun’s heat, the earth at night _____ too cold for us to live.

高三英语单项填空中等难度题查看答案及解析

Without the air to hold some of the sun’s heat, the earth at night_____very cold, too cold for us to live.

A. will be    B. would have been   C. is    D. would be

高三英语单项填空简单题查看答案及解析

Some of this heat near the earth's surface _________ make electricity.

高三英语单项填空简单题查看答案及解析

When the sun’s rays hit the earth, a lot of heat ______________ back into space

A.are reflected B.is reflected

C.reflects D.were reflected

高三英语单项填空中等难度题查看答案及解析

Global warming happens when greenhouse gases trap heat and light from the sun in the earth’s atmosphere, which increases the temperature. This is like when heat is trapped in a car. On a hot day, the car gets hotter when it is out in the parking lot. This is because the heat and light from the sun can get into the car, by going through the windows，but it can’t get back out. This is what the greenhouse effect does to the earth .The heat and light can get through the atmosphere, but it can’t get out As a result，the temperature rises.

Sometimes the temperature can change in a way that helps us. The greenhouse effect makes the earth appropriate for people to live on Without it，the earth would be freezing，or it would be burning hot. It would be freezing at night because we would not get the sun’s heat and light .During the day, especially during the summer, it would be burning because the sun would be up with no atmosphere to filter(过滤)it，so people，plants，and animals would be exposed to all the light and heat.

Although the greenhouse effect makes the earth able to have people living on it，if there gets to be too many gases，the each can get unusually warmer, and many plants，animals．and people will die. Plants would die because they would not be able to take the heat .This would cause us to have less food to eat, and it would also limit the food that animals have. With less food for the animals that we need to survive we would even have less food. Gradually, people，plants，and animals would all die of hunger．

People are doing many things to try to stop global warming .One thing is carpooling—driving with someone to a place that you are both going to. Another thing is being more careful about leaving electrical devices turned on. Now, more people are even riding buses or bikes to lower the amount of greenhouse gases in the air .Although adults do many things to help stop global warming, kids call do just as much.

1.By the example given in Paragraph l, the author wants to__________.

A. explain how global warming happens

B. show his feeling in a car in hot summer

C. tell us cars are causes of greenhouse gases

D. say that I there are greenhouse gases in every car

2.The underlined word ‘it” in Paragraph 2 refers to__________.

A. light　　 B. greenhouse effect　　 C. temperature　 D. heat

3.What is the effect of atmosphere?

A. IT only traps the heat of the sun.

B. It does great harm to humans.

C. It makes the earth neither to hot nor too cold.

D. It prevents all the light from the sun shining on the earth.

4.What is the main idea of the third paragraph?

A. lf there is greenhouse effect．all the plants will die

B. Human beings are likely to disappear from the earth

C. Crops can ′t take in the heat lf there is greenhouse effect

D. Although greenhouse effect is necessary．Too much of it will cause us to die.

5.What will the author most probably discuss in the paragraph that follows?

A. What kids can do to help stop global warming.

B. Who should be responsible for the environmental problems.

C. What global warming is doing to the environment.

D. Why cars and buses pollute the air a lot

高三英语阅读理解中等难度题查看答案及解析

Soon enough, we will lose some of the most amazing sites on Earth!

The Great Barrier Reef

Rising air temperatures will cause sea temperatures to rise as well.All life supported by the oceans will be affected with this shock to their ecosystem.Coral are some of the most vulnerable marine animals and we are already watching whole reefs disappear.The Great Barrier Reef in Australia is no exception and will continue to shrink as the temperatures rise！These reefs are some of the best in the world for diving, but they will soon disappear!

Venice

Sprawling across(横跨)hundreds of small islands in Northeast Italy，Venice is at extreme risk of sinking into the Adriatic Sea.Rising sea levels are in fact a serious threat to many coastal cities located at sea level.Lucky for us，however，Venice is developing a series of sea walls to protect the city in times of high tide.

Glacier(冰川)National Park

Glacier National Park was once covered by over 150 glaciers, but by 2005 it only had about 27！Located in Montana, Canada, this park is over a million acres and has a huge plant and wildlife population.As temperatures rise, the glaciers and ice melt, which will upset the ecosystems sustaining over a thousand plant species and hundreds of animals.

The Amazon

The cause behind the disappearance of these fantastic places ultimately comes down to humans.Our expansion usually requires cutting down forests for land, fuel and materials，but rarely considers the consequences.These forests are sources of food and medicine for just about everyone on the planet!

What will happen if we lose these valuable places and beautiful destinations？！

1.According to the text，what is causing coral's death?

A. Rising sea levels.　　 B. Rising sea temperatures.

C. Humans' diving activities.　　 D. The shrinkage(缩小)of their habitats.

2.What can we infer from the part of “Venice”？

A. Many places are in the risk of sinking below the sea level.

B. Venice is the only coastal city of Italy.

C. Venice will never sink because of the protection of sea walls.

D. Italy consists of hundreds of small islands in the Adriatic Sea.

3.What can we learn about Glacier National Park from the text?

A. It doesn't support any living thing for its cold.　　 B. It iscovered by over 150 glaciers.

C. Plant species and animals in it have died out.　　 D. It covers a large area in Montana.

4.Which site's shrinking reason differs from the other sites?

A. The Great Barrier Reef.　　 B. Venice.

C. The Amazon.　　 D. Glacier National Park.

高三英语阅读理解中等难度题查看答案及解析

What would happen to the earth if the sun suddenly　　　 switch off some day?

A. might　 B. could　 C. would　 D. should

高三英语单项填空中等难度题查看答案及解析

—May I open the window to let in some fresh air?

—________！

A．Come on　                         B．Take care

C．Go ahead　                         D．Hold on

高三英语单项填空中等难度题查看答案及解析

Sometimes, the simplest ideas are the best. For example, to absorb heat from the sun to heat water, you need large, flat, back surfaces. One way to do that is to build those surfaces specially, on the roofs of buildings. But why go to all that trouble when cities are full of black surfaces already, in the form of asphalt(柏油) roads ?

Ten years ago, this thought came into the mind of Arian de Bondt, a Dutch engineer. He finally persuaded his boss to follow it up. The result is that their building is now heated in winter and cooled in summer by a system that relies on the surface of the road outside.

The heat-collector is a system of connected water pipes. Most of them run from one side of the street to the other, just under the asphalt road. Some, however, dive deep into the ground.

When the street surface gets hot in summer, water pumped through the pipes picks up this heat and takes it underground through one of the diving pipes. At a depth of 100 metres lies a natural aquifer(蓄水层) into which several heat exchangers（交换器）have been built. The hot water from the street runs through these exchangers, warming the groundwater, before returning to the surface through another pipe. The aquifer is thus used as a heat store.

In winter, the working system is changed slightly. Water is pumped through the heat exchangers to pick up the heat stored during summer. This water goes into the building and is used to warm the place up. After performing that task, it is pumped under the asphalt and its remaining heat keeps the road free of snow and ice.

1.Which of the following is true according to the first two paragraphs ?

Arian de Bondt got his idea from his boss.

Large, flat, black surfaces need to be built in cities.

The Dutch engineer’s system has been widely used.

Heat can also be collected from asphalt roads.

2.For what purpose are the diving pipes used ?

3. From the last paragraph we can learn that __________.

4.What is most likely to be discussed in the paragraph that follows ?

高三英语阅读理解中等难度题查看答案及解析