Rare species in the world, ______ by hundreds...

Rare species in the world, ______ by hundreds every year, must be jointly preserved by all countries, or humans will encounter ecological disaster in the near future.

A. disappeared     B. disappearing     C. disappear     D.having disappeared

高二英语单项填空中等难度题查看答案及解析

1

Rare species in the world, ______ by hundreds every year, must be jointly preserved by all countries, or humans will encounter ecological disaster in the near future.

A. disappeared     B. disappearing     C. disappear         D.having disappeared

高二英语简单题查看答案及解析

Every year there are hundreds of earthquakes in different parts of the world. In Sept.1923, Tokyo and Yokohama were both destroyed by an earthquake and the fires that followed it. They had to be completely rebuilt. One of the most serious earthquakes was in China’s Shanxi Province in 1556. It killed almost one million people.

We measure an earthquake’s strength on the Richter scale. The Richter scale was introduced in 1935 in Southern California in the USA. It measures earthquakes on a scale of one to ten. Any earthquake measuring five or more is usually serious.

The earth’s crust (地壳) is made up of layers of rock called plates. As these plates move, they sometimes crash against each other, causing the crust to quake. In cities such as Tokyo, where small quakes happen quite often, many modern buildings are designed to be flexible so when the earth moves, they move with it.

Earthquakes can also break up gas or oil pipes. This can cause fires to break out, which can do as much damage as the earthquake itself.

Another effect of earthquakes is tsunamis (海啸). These are huge waves created by earthquakes beneath the sea. They can be many meters high and cause great damage to coastal towns and cities.

China, Japan, Russia and the USA have the highest occurrence (发生) of earthquakes in the world.

高二英语填空题困难题查看答案及解析

In the past hundred years, the world’s attitude toward whales has changed a lot. The animals are no longer seen as frightening creatures and worldwide protection efforts have reduced whale hunting. Through careful observation, scientists have shown that whales are generally peaceful, playful creatures, and that they have a high level of intelligence.

But even now, some behaviour of whales is still a mystery. A lot of information gathered by whale researchers has raised new puzzles about the animals. Whales’ communication is particularly difficult to understand. Male humpbacks (also known as bulls) give off a sequence (一连串) of low moans（呻吟）, high screams and clicking noises. These noises are sometimes combined in songs that last as long as 30 minutes. And in a particular region, every male will sing the same song, making small changes every once in a while so that it evolves (逐渐形成) into a completely different song over time.

This behavior seems to be related to reproduction. During the mating (交配) season, a male humpback starts the long song sequence, stopping only to join a passing female whale (also known as a cow). Eventually, the bull and the cow may dive deep into the ocean, probably to mate. Male humpbacks’ songs are similar to what birds display to attract mates (配偶), except that the sound carries over many miles, attracting some other male humpbacks in the area. It’s very odd that a male would call his own competition to him, unless he actually wanted to test his strength against others. Some whale researchers believe that the songs are actually acoustic (听觉的) contests of strength.

1.What can we infer from the first paragraph?

A. We used to have wrong ideas about whales.

B. Whales are in danger of dying out today.

C. Whales have always been considered as fierce creatures.

D. Whales are only protected in some parts of the world.

2.We can learn from the second paragraph that 　　　　 .

A. male whales and female whales both sing songs

B. people can’t fully understand whales’ communication

C. people only understand the songs of male whales

D. the songs of male whales never change

3.The last paragraph suggests that male humpbacks sing songs most probably to 　　　　 .

A. find their own family members

B. work together with others to hunt

C. compete against other male humpbacks

D. frighten away other male humpbacks

高二英语阅读理解中等难度题查看答案及解析

This year some twenty-three hundred teenagers from all over the world will spend about ten months in US homes through an exchange program. They will attend US schools ,meet US teenagers, and form impressions of the real American teenagers . American teenagers will go to other countries to learn new languages and gain a new understanding of the rest of the world.

Fred, nineteen, spent last year in Germany with George's family . In turn, George's son, Mike, spent a year in Fred's home in America.

Fred, knew little German when he arrived, but after two month's study, the language began to come to him . School was completely different from what he had expected -much harder. They took fourteen subjects instead of the six that are usual in the United States.

"Back home ,you pick up some friends in a car and go out and have a good time ,In Germany ,you walk ,but you soon learn to like it."

At the same time ,in America ,Mike ,a friendly German boy ,was also forming his idea ."I suppose I should criticize American schools ,"he says ."It is far too easy by our level .But I have to say that I like it very much .In Germany we do nothing but study . Here we take part in many outside activities. I think that maybe your schools are better in training for citizens .There ought to be some middle ground between the two."

1.The whole exchange program is mainly to ­_________

A．help teenagers in other countries know the real America

B．send students in America to travel in Germany

C．let students learn something about other countries

D．have teenagers learn new languages

2.What did Fred and Mike agree on?

A．America has better traffic.

B．German schools were harder than American schools.

C．Americans and Germans were both friendly

D．There were more cars on the streets in America.

3.What is particular in American schools ?

A．There is some middle ground between the two teaching buildings.

B．There are a lot of after-school activities.

C．Students usually take 14 subjects in all.

D．Students go outside to enjoy themselves in a car

4.What did Mike think after experiencing the American school life?

A．A better education should include something good from both America and Germany.

B．German schools trained students to be better citizens

C．American schools were not as good as German schools.

D．The easy life in the American school was more helpful to students.

5.The underlined word “criticize” in the last paragraph can be replaced by"_________"

A．praise            B．regret            C．ignore            D．accuse

高二英语阅读理解中等难度题查看答案及解析

We often think of future．We often wonder what the world would be like in a hundred years' time.

Think of space, perhaps a permanent(永久的) station on the moon will have been set up．Perhaps people will be able to visit the moon as tourists．Cheap rockets for space travel will have been developed, permitting long journeys throughout the solar system(太阳系)．When that time comes, people will be taking holidays in space and visiting other planets．Great progress will have been discovered for the most terrible of all diseases—cancer．Pollution is a problem we must solve．In a hundred years' time it will have been controlled.

All the world will have been developed—even Antarctica．There will be large cities in Antarctica．We already have supersonic(超音速的) flight, but in a hundred years' time we will have supersonic land travel as well.

We will have used up most of earth's land to build our cities, so floating cities will have been built．The Japanese already have plans for cities of this kind．And there will be cities under the sea．The first of these will have been completed.

1.We will have developed __________ in a hundred years' time, permitting long journeys all over the solar system.

2.Man will also have supersonic land travel ____________．

3.The last paragraph mainly talks about _____________.

4.The best title for the passage is ______________.

高二英语阅读理解中等难度题查看答案及解析

We often think of future. We often wonder what the world would be like in a hundred years’time.

Think of space，perhaps a permanent(永久的) station on the moon will have been set up. Perhaps people will be able to visit the moon as tourists. Cheap rockets for space travel will have been developed，permitting long journeys throughout the solar system(太阳系). When that time comes，people will be taking holidays in space and visiting other planets. Great progress will have been made in medicine，too. Perhaps a cure will have been discovered for the most terrible of all diseases—cancer. Pollution is a problem we must solve. In a hundred years’time it will have been controlled.

All the world will have been developed — even Antarctica. There will be large cities in Antarctica. We already have supersonic(超音速的) flight，but in a hundred years’time we will have supersonic land travel as well.

We will have used up most of earth’s land to build our cities， so floating cities will have been built. The Japanese already have plans for cities of this kind. And there will be cities under the sea. The first of these will have been completed.

1.We will have developed ______ in a hundred years’time，permitting long journeys all over the solar system.

A. cheap rockets for space travel　　　 B. a plane

C. a spaceship　　　　　　　　　　　　　　 　 D. a satellite

2.Man will also have supersonic land travel ______.

A. in a year　　　　　　　　　　 　 B. about half a century later

C. in the year 2050　　　　　　　 D. about a century later

3.The last paragraph mainly talks about ______.

A. we’ll make good use of space on the earth

B. cities under the sea

C. Japan will first build floating cities

D. earth’s land is in danger

4. The best title for the passage is ______.

A. Travel in the Future　　　　　　　　 B. Future Life

C. Where to Live in the Future　　　　 D. Space Travel

高二英语阅读理解中等难度题查看答案及解析

In the last years of the 1920s, hundreds of record flights were made. A few were made by women. But no woman had flown across the Atlantic Ocean. A wealthy American woman, Amy Guest,________1.________(buy) a plane to do this. However, her family were against the idea.________2. she looked for another woman to take________3.________place. Friends suggested Amelia Earhart, who became interested in flying while________4.________(live) in Toronto. American publisher George Putnam had helped organize the Atlantic Ocean flight________5.________made Amelia famous. Afterwards,________6.  continued to support her flying activities. In 1931, George and Amelia were married. He helped provide her7.________financial support.

8.________May 20th, 1932, Amelia took off from Newfoundland. She headed east in________9.  small red and gold plane. Amelia had problems with ice on the wings, and fog from the ocean. At one point, her plane dropped________10.________(sudden) 900 meters. She regained control. And after 15 hours she landed in Ireland. She had become the first woman to fly across the Atlantic Ocean alone.

高二英语填空题中等难度题查看答案及解析

From July to October every year, about a quarter of the world’s blue whales feed in the Pacific Ocean off the coast of California. But the whales currently face a major threat in their favorite feeding area. Ships carrying cargo (货物）sail in the same area at the same time. All too often, the whales’ paths and the ships’ travel lines overlap (重叠), and a ship will hit a whale.

According to a new study, these ship strikes have become a serious threat to the overall population of the world’s blue whales. Only about 10,000 of the creatures still exist worldwide. Blue whales are the largest known animals ever to live on Earth. Even so, if hit by a container ship, a blue whale will likely die from its injuries.

In 2007 alone, large ships killed five blue whales in the waters off San Francisco and Los Angeles, California. The National Oceanic and Atmospheric Administration (NOAA) says that because there are so few whales already, losing three to five from the California whale population every year is a significant loss. “The estimated population of blue whales in this part of the Pacific is 2,500”, says Sean Hastings, a NOAA analyst. “So every whale counts toward this species moving off the endangered-species list.”

Now, marine scientists must figure out how to protect the whales from the giant container ships. One very simple program is already under way in the Santa Barbara Channel, a waterway that separates mainland California from the nearby Channel Islands.

The Channel Islands National Marine Sanctuary has asked large container ships passing through the area to voluntarily slow down. Sailing slower will allow the ships‟ crew (船员）more time to change course before hitting a whale.

Several of the world’s largest shipping lines are set to participate in the new program. For every ship that passes through the Santa Barbara Channel at or below the reduced speed of 12 knots (海里/小时）, the company that owns the ship will be paid $2,500.

1.From Paragraph 1, we can know that_____.

A. people intend to illegally hunt blue whales for money

B. large ships often carrying goods may pollute the sea

C. the container ships may hit the blue whales frequently

D. there is fewer fish in blue whales‟ favorite feeding area

2.Why is the death of several whales regarded as significant loss to the world's blue whales?

A. Because the number of the blue whales is so small.

B. Because other blue whales will be scared away.

C. Because blue whales are the largest animals in the world.

D. Because many blue whales get killed throughout the year.

3.According to Sean Hastings, it’s inferred that 　　　　　　 .

A. the number of the blue whales is decreasing sharply.

B. the blue whales are still on the endangered-species list.

C. most of the world’s blue whales live in the Pacific Ocean.

D. blue whales are often disturbed by other endangered creatures.

4.What are the last three paragraphs mainly about?

A. The basic responsibility of a sailor.

B. Measures to protect the blue whales.

C. The world’s largest shipping lines.

D. Ways to slow down the speed of the ships.

高二英语阅读理解中等难度题查看答案及解析

阅读理解。

Every year there are changes in climate in different parts of the world.Some of these changes are due to natural causes.However,some climate changes are caused by air pollution and these changes may increase.

If the pollution affects the level of carbon dioxide in the atmosphere,the results are likely to be serious.There is only a small part of carbon dioxide in the atmosphere.But it has an important function in keeping the balance between radiation from the sun entering the atmosphere and radiation leaving the Earth.Some of the radiation is absorbed by the Earth and some is radiated back into the atmosphere.The carbon dioxide in the atmosphere prevents some of the radiation from leaving the atmosphere.Thus the heat remains in the atmosphere and carbon dioxide helps to prevent the temperature of the Earth from falling.

If the proportion(比例)of carbon dioxide in the atmosphere is increased as a result of air pollution,the temperature of the atmosphere may rise.This might cause the ice in the North and South to melt.If this happened,the sea level could rise and parts of the Earth would be flooded.This is not quite likely but the possibility exists.

There is also a fairly strong possibility that the dust level in the atmosphere will rise as a result of industrial pollution.This dust pollution will reflect sunlight back onto space.If this happens,less sunlight will reach the Earth and the temperature will fall.

Another danger comes from the destruction(破坏)of the Earth’s vegetation(植物)such as the forest of Brazil,which is being cleared away for farmland and cities.Trees use carbon dioxide and their destruction may upset the balance of carbon dioxide in the atmosphere.

1.The main purpose of the passage is to tell us that 　　 .

A.the climate of the earth is always changing

B.air pollution has greatly affected the climate of the world

C.carbon dioxide has something to do with climate changes

D.the climate of the world is subjected to(使受到)dangers from air pollution

2.From this passage we learn that carbon dioxide 　　 .

A.helps to prevent the temperature of the Earth from rising

B.keeps much of the sun’s radiation from entering the atmosphere

C.plays an important part in keeping the balance of the temperature of the Earth

D.is one of natural causes of climate changes

3.Judging from this passage,if the level of carbon dioxide in the atmosphere went down,the temperature of the Earth would 　　 .

A.become higher　　　　 B.either rise or fall

C.become lower　　　　　 D.neither rise nor fall

4.Which of the following is not the possible serious outcome if air pollution is related to climate changes?

A.Parts of the Earth would be flooded one day.

B.More sunlight would reach the Earth.

C.The temperature of the Earth might rise.

D.The Earth’s vegetation might be destroyed.

高二英语阅读理解中等难度题查看答案及解析