Temperatures in the United States measured according to the Fahrenheit Scale, on which 32 degrees the freezing point of water and 212 degrees the boiling point. A. are; is B. are; are C. is; are D. is 题目和参考答案——青夏教育精英家教网—

题目内容

Temperatures in the United States ________ measured according to the Fahrenheit Scale, on which 32 degrees ______ the freezing point of water and 212 degrees the boiling point.

A. are; is B. are; are C. is; are D. is; is

解析：这一题考的是单复数的用法。第一格中，be 动词的主语是temperatures，是复数，故用are; 而第二格虽然主语是32 degrees，但它表示的是温度表上的一点，不表示总共有32个度数，所以用单数。

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The year is 2094．It has been announced that a comet (彗星) is heading towards the Earth．Most of it will miss our planet , but two pieces will probably hit the southern half of the Earth．

On 17 July , a piece four kilometers wide enters the Earth’s atmosphere (大气层) with a massive explosion．About half of the piece is destroyed , but the remaining part hits the South Atlantic at 200 times the speed of sound．The sea boils and a huge hole is made in the sea bed．Huge waves are created and spread outwards from the hole．The wall of water , a kilometer high , rushes towards southern Africa at 800 kilometers an hour．Cities on the African coast are totally destroyed and millions of people re drowned．

Before the waves reach South America , the second piece of the comet lands in Argentina．Earthquakes and volcanoes are set off in the Andes Mountains．The shock waves move north into California and all around the Pacific Ocean．The cities of Los Angeles , San Francisco and Tokyo are completely destroyed by earthquakes．Millions of people in the southern half of the earth are already dead, but the north won’t escape for long．Because of the explosions , the sun is hidden by clouds of dust , temperatures around the world fall to almost zero．Crops are ruined．The sun won’t be seen again for many years．Wars break out as countries fight for food．A year later , no more than 10 million people remain alive．

Could it really happen ? In fact , it has already happened more than once in the history of the Earth．The dinosaurs were on the Earth for over 160 million years．Then 65 million years ago they suddenly disappeared．Many scientists believe that the Earth was hit by a piece of object in space．The dinosaurs couldn’t live through the cold climate that followed and they died out．Will we meet the same and ?

What is mainly described in the passage ?

A．A historic discovery． B．An event of imagination

C．A research on space． D．A scientific adventure．

When the first piece hits the South Atlantic , it causes ．

A．an earthquake B．damages to cities

C．an Earth explosion D．huge waves

Why can’t the northern half of the earth escape for long ?

A．Because the land is covered with water

B．Because the light and heat from the sun can not reach the earth．

C．Because people there can not live at the temperature of zero．

D．Because wars break out among countries．

By giving the example of dinosaurs , the author tries to prove ．

A．animals could not live in the cold climate

B．what happened 65 million years ago was an invented story

C．the human beings will die out in 2094

D．the Earth could be hit by other objects in space

A severe heatwave sweeping India, with temperatures of almost 44ºC, the highest in 52 years, has killed at least 80 people this month, officials said on Sunday. The hot weather, which officials say would continue over northern, north-western and central India in the next 48 hours, also may have some impact on wheat production, exporters and flour-mill associations said.
　　New Delhi recorded a maximum temperature of 43.7ºC on Saturday, indicating a hot summer in the next two months in the nation's capital and other parts of northern and eastern India. The highest temperature in the past 24 hours was 47ºC at Ganganagar city, in Rajasthan state. Summer temperatures have been 4ºC-6ºC above normal over most parts of northern and central India since March, weather officials said.
　　In the eastern state of Orissa, authorities have decided to shut down schools from next Tuesday, advancing the annual summer holiday. Authorities said they were investigating reports of 53 deaths from various parts of the state.
　　"District collectors have been asked to investigate and submit reports on other deaths," Bhimsen Gochhayat, a government official said. Other deaths were reported from northern state of Uttar Pradesh and central Madhya Pradesh states.
　　India is expected to produce about 82 million tons of wheat in 2009-2010, but there could be a shortage of 1-1.5 million tons due to the heatwave, said Veena Sharma, Secretary General of the Roller Flour Millers Federation of India. "Most of the harvesting is over, but there definitely will be a slight shortage of 1-1.5 million tons due to the extreme weather conditions," she told Reuters.
India is relying on an abundant wheat crop to make up for a 14.2% drop in rice output, the major summer-sown food grain, marred by the worst monsoon （季风）in 37 years last year. Weather officials say with summer temperatures in India set to remain above average, there were hopes of heavy rains at the start of the monsoon season that will help early sowing of rice, soybeans and lentils.
【小题1】 The purpose of the passage is ____________.

A．to tell a piece of news of a heatwave

B．to record the highest temperature in India

C．to report the deaths in the heatwave

D．to inform people of a drop of rice output

【小题2】 Which of the following is TRUE according to the passage?
A. The highest temperature in the history of India was 44ºC.
B. Schools were closed because of the hot weather throughout India.
C. India is expected to produce about 82 million tons of rice in 2009-2010.
D. India has a good harvest of wheat while the rice output is decreasing.
【小题3】 The underlined word “marred” in the last paragraph probably means “___________”.

【小题4】What is the main idea of the passage?

A．A severe heatwave would continue over India.

B．At least 80% people were killed in the disaster this month.

C．A severe heatwave swept India with a great loss.

D．A slight shortage of 1-1.5 million tons is due to the heatwave.

Easter(复活节) is still a great day for worship, randy in baskets and running around the yard finding eggs, but every year it gets quite a bit worse for bunnies.
And no, not because the kids like to pull their ears. The culprit is climate change, and some researchers found that rising temperatures arc having harmful effects on at least five species of rabbit in the US.
Take the Lower Keys March rabbit, for instance. An endangered species that lives in the Lower Florida Keys, this species of cottontail is a great swimmer — it lives on the islands! — but it is already severely affected by development and now by rising levels. According to the Center for Biological Diversity, an ocean level rise of only 0. 6 meters will send these guys jumping to higher ground and a 0.9-meter rise would wipe out their habitat (栖息地) completely.
The snowshoe hare, on the other hand, has a color issue. Most of these rabbits change their fur color from white in the wintertime to brown in the summer, each designed to give them better cover from predators（捕食者）. As the number of days with snow decreases all across the country, however, more and more bunnies arc being left in white fur during brown dirt days of both fall and spring, making them an easier mark for predators. Researchers know that the color change is controlled by the number of hours of sunlight, but whether the rabbit will be able to adapt quick enough to survive is a big question. The National Wildlife Federation has reported that hunters have noticed their numbers are already markedly down.
American pikas or rock rabbits, a relative of rabbits and hares, might be the firs' of these species to go extinct due to climate change. About 7-8 inches long, pikas live high in the cool, damp mountains west of the Rocky Mountains. As global temperatures rise, they would naturally migrate (迁徙) to higher ground — but they already occupy the mountaintops. They can't go any higher. The National Wildlife Federation reports that they might not be able to stand the new temperatures as their habitat beats up.
The volcano rabbit has the same problem. These rabbits live on the slopes of volcanoes in Mexico, and recent studies have shown that the lower range of their habitat has already shifted upward about 700 meters, but there are not suitable plants for them to move higher, so they are stuck in the middle. Scientists are concerned about their populations.
Native to the US, pygmy rabbits weigh less than 1 pound and live in the American West. They are believed to be the smallest rabbits in the world. Their habitats have been destroyed by development. Several populations, such as the Columbia Basin pygmy, almost went extinct and were saved by zoo breeding programs. Pygmy rabbits also rely on winter cover by digging tunnels through the snow to escape predators, but lesser snowfall is leaving them exposed.
All of this gives new meaning to dressing up in a giant bunny costume this Easter.
【小题1】The writer mentions Easter at the beginning of the passage in order to_______.

A．show the importance of Easter Day

B．introduce the issue about bunnies

C．remind people of Easter traditions

D．discuss the relationship between Easter and bunnies

【小题2】The word "culprit" ( Paragraph 2) is closest in meaning to______.

【小题3】According to the passage, some rabbits can now be easily Uncovered by predators because they_______

A．are exposed lo more skillful hunters

B．have moved to habitats with fewer plants

C．haven't adapted themselves to climate change

D．can't change their fur color into white in the fall and the spring

【小题4】The problem faced by volcano rabbets and rock rabbits is that________.

A．both are affected by 1ess snow

B．both are affected by rising sea levels

C．neither can find enough food

D．neither can migrate to higher places

【小题5】Which best describes the writer's tone in the postage?

They say that Mexico is a country no one ever leaves. Every year, millions of tourists pass through. And Mexicans happily warn that a part of them will remain behind forever. Most visitors are vacationing North Americans who go up on the brilliant beaches of Cancun, Acapulco, Mazatlan, and Puerto Vallarta. The beaches, of course, are among the world’s best ----but those who venture (冒险) inland are rewarded with the true soul of Mexico.

And it is a big soul. The Republic of Mexico is vast, consisting of nearly two million square miles of coastline, desert, rain forest, mountains, and rich plains. From the American borderlands of the wide, agriculturally rich north, the country narrows gently as it sweeps south and east. The two main mountain ranges(山脊), the Sierra Madre Occidental and the Sierra Madre Oriental, hug the west and east, finally merging（融入） into the volcanically active central highlands and the capital, Mexico City - the most populous city in the world. Further south, the country narrows to only 100 miles, then broadens again before reaching the Guatemalan border. There are two major peninsulas (半岛) in Mexico: the Baja Peninsula to the west and the Yucatan peninsular to the east.

The population is about 106 million. and the generosity (慷慨大方) of the Mexican people is unsurpassed. Knowing a few simple sentences in Spanish will win hearts.

Mexico has been blessed with an unusually temperate (适度的) climate year-round. The most important thing to remember is that the Mexican summer is also the rainy season, although the rain rarely lasts more than a few hours, and typically arrives in the late afternoon. Extremes(极端)are present only in the North and in Baja, both of which have deserts where the temperature leaps above 100F. Mexico City has a year-round temperature in the high 80s. while the coasts usually stay in the mid-90s. Night time temperatures fall somewhat, but rarely break down below a comfortable 60F.

1.All of the following are names of beaches EXCEPT ___________ .

A．Puerto Vallarta B．Cancun C．Guatemalan D．Mazatlan

2.The Republic of Mexico _________.

A．has two peninsulas altogether

B．has a population of about 106 million

C．has more than 2 million square miles of coastline

D．has two main mountain ranges going from west to east

3.The underlined word "unsurpassed" in the 3rd paragraph probably means” ".

A perfect B. false C. ancient D. out of date

4.You may suffer extreme temperatures if you go to ___________. .

A．the east B．the west C．the south D．the north

5.Which of the following is NOT mentioned in the passage?

A．Geography. B．History. C．Language. D．Climate.

TUVALU, a tiny country in the Pacific Ocean, has asked for help as it fears it will be swallowed up by the sea.Storms and huge waves are a constant threat and none of Tuvalu’s nine little islands is more than five meters above sea level, Salt water is already entering the country’s drinking water supply, as well as damaging plants that produce fruit and vegetable.__51___

___52___. Venice, a historic city in Italy best known for its canals, has sunk about 24 cm over the past 100 years. Experts say that it will have sunk another 20-50cm by 2050. A century ago, St. Mark’s Square, the lowest point in the city, floodedd about nine times a year, Nowadays, it happens more than 100 times. While Venice is slowly sinking into the mud on which it stands, Tuvalu’s rising sea level is caused by global warming.

The average global temperature has increased by almost 0.5 centigrade degrees over the past century; scientists expect it to rise by extra 1-3 degrees over the next 100 years.

Warmer weather makes glaciersmelt, adding more water to the ocean. The warmer temperatures also make water expand, so it takes up more space, causing the sea level to rise. The sea level has risen about 10－25 cm in the last 100 years.

___53___. Through burning coal, oil and gas, people have been increasing the greenhouse gases in the atmosphere, such as CO₂. This adds to the power of the greenhouse effect, making the planet even warmer.

Many scientists believe that, if the warming is not stopped, there will be huge climate changes.___54____.____55____, the sea will swallow up millions of homes and the world will be flooded with “climate refugees” looking for somewhere to live.

A．The main cause of global warming is human pollution

B．Should this come true

C．Without urgent help, the country’s days are numbered.

D．But Tuvalu is not the first place to face sinking into the sea

E. The sea level could rise by one meter this century.

F. people face a lot of pollution.

G. much has been done about our planet .

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