Most animals have little connection with anim...

Most animals have little connection with animals of a different kind, unless they hunt them for food. Sometimes, however, two kinds of animals come together in a partnership (伙伴关系) which is good for both of them. You may have noticed some birds sitting on the backs of sheep. This is not because they want a ride, but because they find easy food in the parasites (寄生虫) on sheep. The sheep allow the birds to do so because they remove the cause of discomfort. So although they can manage without each other, they do better together.

Sometimes an animal has a plant partner. The relationship develops until the two partners cannot manage without each other. This is so in the corals(珊瑚) of the sea. In their skins they have tiny plants which act as “dustmen”, taking some of the waste products from the coral and giving in return oxygen which the animal needs to breathe. If the plants are killed, or are even prevented from receiving light so that they cannot live normally, the corals will die.

1.We learn from the text that corals depend on plants for______.

A. food　　 B. light

C. oxygen　　 D. comfort

2.Some birds like to sit on a sheep because _______.

A. they enjoy travelling with the sheep

B. they can eat the parasites on the sheep

C. they depend on the sheep for existence

D. they find the position most comfortable

3.The underlined word “they” in the first paragraph refers to ____.

A. birds and sheep　　 B. birds and parasites

C. parasites and sheep　　 D. sheep, birds and parasites

4.What does the second paragraph mainly discuss?

A. Some animals live better together.

B. Some plants depend on each other for food.

C. Some animals and plants develop their relationship easily.

D. Some animals and plants depend on each other for existence

高二英语阅读理解中等难度题查看答案及解析

Most animals have little connection with animals of a different kind, unless they hunt them for food. Some­times, however, two kinds of animals come together in a partnership(伙伴关系) which does good to both of them. You may have noticed some birds sitting on the back of sheep. This is not because they want a ride, but because they find easy food in the parasites(寄生虫）on sheep. The sheep allow the birds to do so be­cause they remove the cause of discomfort. So although they can manage without each other, they do better together.

Sometimes an animal has a plant partner. The rela­tionship develops until the two partners cannot do with­out each other. This is so in the corals(珊瑚）of the sea. In their skins they have tiny plants which act as “dustman”, taking some of the waste products from the coral and giving in return oxygen which the animal needs to breathe. If the plants are killed, or are even prevented from light so that they cannot live normally, the corals will die.

1.Some birds like to sit on a sheep because _________.

A. they can eat its parasites

B. they consider the sheep as their shelter

C. they enjoy traveling with the sheep

D. they find the position most comfortable

2.The underlined word “they” in the first paragraph refers to _______.

A. birds and parasites                                              B. sheep, birds and parasites

C. parasites and sheep                                            D. birds and sheep

3.It can be learnt from the text that the coral depends on the plants for ________.

A. comfort                                     B. light                         C. oxygen                    D. food

4.What does the second paragraph mainly discuss?

A. Some plants depend on each other for food.

B. Some animals and plants develop their relationship easily.

C. Some animals and plants depend on each other for existence.

D. Some animals live better together.

高二英语阅读理解中等难度题查看答案及解析

Polar bears are one of the most popular animals for people. Polar bears are different from every other bear in the world. This is because polar bears have white fur. However, there are many facts about polar bears that people might not be aware of .

The skin of polar bears is black, which according to thinkquest.org　 allows them to absorb more heat from the sun. Polar bear fur is transparent , because it is made up of hollow guard hairs. Loc.gov explains that the reason polar bears display white fur is that when the sun hits the fur ,the hollow spaces in the hair scatter the light. Since none of the light is absorbed, the light reflected back appears white to human eyes.

Polar bears’ conservation status is considered close to extinction. Global warming is considered the main cause of the decline in polar population. Polar bears use ice floats to hunt for their food. However, these ice floats are melting so polar bears are starting to drown in the search for food ,and the food is becoming more difficult to get. Contrary to popular belief, polar bears do not eat penguins ,because polar bears are not found in the Antarctic region of the world. Polar bears are only found around the Arctic Circle. Polar bears do not drink water. They get all the water they need from the prey they eat.

FES. Gov specifies that polar bears are considered the largest land carnivores(食肉动物) in the world. The polar bear weight ranges between 700--1,500 pounds. Since the polar bear habitat is melting away, their main evolutionary advantages are fading. Polar bears are not able to use their camouflage(伪装) to find prey in habitats not covered with snow. Polar bears do not hibernate(冬眠). However, when the weather gets uncomfortable, or mothers give birth, polar bears will dig themselves a hidden home.

What can we do to help save the polar bears? We can donate to organizations like the World Wildlife Fund, reduce our carbon footprint, and send letters to politicians explaining to them that we need to set up more preserves to help save the polar bear habitat.

1.What do we know about the fur of the polar bears?

A. It absorbs more heat from the sun.

B. It is black and hollow.

C. Light can pass through it.

D. It is white actually.

2.What does “main evolutionary advantages” in Paragraph 4 refer　 to？

A. Hibernation habit　　 B. The function of their fur

C. Eating meat　　 D. Their weight

3.What do we know from the passage?

A. Polar bears face danger due to the melting of ice floats.

B. The biggest polar bears weigh about 1,000 pounds.

C. Polar bears never hibernate and do not need water.

D. Polar bears are the largest carnivores in the world.

4.Which of the following ways is NOT the measure used to protect polar bears according to the passage?

A. Donating to wildlife conservation organizations.

B. Trying our best to reduce greenhouse gases.

C. Writing letters to make people protect polar bears.

D. Setting up more polar bear conservation organizations.

高二英语阅读理解中等难度题查看答案及解析

China will have the most 5G connections of any nation by 2025, according to a new study, while Europe will fall behind Korea, the United States and Japan in terms of 5G penetration (渗透) by that year.

5G is the fifth generation of network technology. It is expected to bring unbelievable speeds to Internet users, with some operations running 10 times faster than on 4G network. 5G is also expected to unlock potential in a lot of new services, including artificial intelligence, science of robots, self-driving cars, and the Internet of things.

The GSMA said that China’s three major mobile operators—China Unicom, China Mobile, and China Telecom—are already moving ahead with 5G works. While most nations will have 5G by updating existing foundations, the study noted that China plans to build part of its 5G networks.

One of the major distinguishing factors between Chinese mobile operators and those in the rest of the world is the intention to erect the new and independent 5G networks. That is, China is determined to build a completely advanced 5G. The high cost underlines China’s seriousness about paying whatever it takes.

Korea will lead the world in terms of 5G penetration in 2025, when 66 percent of the nations’ total connections will be 5G, according to GSMA. This compares to 50 percent in the US, 49 percent in Japan, 36 percent in China, 30 percent in Europe, and a global average of 18 percent. Out of the five economies leading on 5G, Europe will have the lowest participation in 2025, as the area is moving more slowly in having its 5G networks.

1.What is the future of 5G in China?

A.It will develop rapidly. B.It may be lack of financial support.

C.It will move forward slowly. D.It may fall behind Europe.

2.Which of the following best explains “erect” underlined in paragraph 4?

A.Bring up. B.Set up.

C.Turn up. D.Pick up.

3.What can we infer from the last paragraph?

A.Some Chinese will use 5G in 2025.

B.Koreans cannot possess 5G in 2025.

C.Only five countries will have 5G in 2025.

D.Europe will pay little attention to 5G in 2025.

高二英语阅读理解中等难度题查看答案及解析

China will have the most 5G connections of any nation by 2025, according to a new study, while Europe will fall behind Korea, the United States and Japan in terms of 5G penetration (渗透) by that year.

5G is the fifth generation of network technology. It is expected to bring unbelievable speeds to Internet users, with some operations running 10 times faster than on 4G networks. 5G is also expected to unlock the potential in a lot of new services, including artificial intelligence, science of robots, self-driving cars, and the Internet of things.

The GSMA said that China’s three major mobile operators — China Unicom, China Mobile, and China Telecom—are already moving ahead with 5G networks. While most nations will have 5G by updating existing foundations, the study noted that China plans to build part of its 5G networks.

A One of the major distinguishing factors between Chinese mobile operators and those in the rest of the world is the intention to erect the new and independent 5G networks. That is, China is determined to build a completely advanced 5G. The high cost underlines China’s seriousness about paying whatever it takes.

Korea will lead the world in terms of 5G penetration in 2025, when 66 percent of the nation’s total connections will be 5G, according to GSMA. This compares to 50 percent in the US,49 percent in Japan, 36 percent in China, 30 percent in Europe, and a global average of 18 percent. Out of the five economies leading on 5G, Europe will have the lowest participation in 2025, as the area is moving more slowly in having its 5G networks.

1.What will 5G bring?

A.A completely new pattern for daily life.

B.Excellent networks and national safety.

C.Amazing speeds for public transportation.

D.Realizing the potential in many new services.

2.What is the future of 5G in China?

A.It will develop rapidly. B.It may be lack of government support.

C.It will move forward slowly. D.It may fall behind Europe.

3.Which of the following best explains “erect” underlined in paragraph 4?

A.bring up. B.set up.

C.turn up. D.pick up.

4.What can we infer from the last paragraph?

A.Some Chinese will use 5G in 2025.

B.Koreans cannot own 5G in 2025.

C.Only five countries will have 5G in 2025.

D.Europe will pay little attention to 5G in 2025.

高二英语阅读理解困难题查看答案及解析

Humans share Earth with many different kinds of wildlife. However, many of our animal friends may not be around for much longer.

According to the Living Planet Report released by the World Wildlife Fund (WWF) in October, the populations of animals including mammals, birds and fish have fallen by an average of 60 percent since 1970.

“We are sleepwalking towards the edge of a cliff (悬崖), Mike Barrett, executive director of science and conservation at WWF, told the Guardian. “If there was a 60 percent decline (下降) in the human population, that would be equivalent (等于) to emptying North America, South America, Africa, Europe, China and Oceania."

According to the report, one of the biggest causes of wildlife losses is human activity. Three- quarters of the world's land is largely affected by human activity. Many natural habitats (栖息地) have been destroyed to create farmland.

About 300 mammal species are dying out because we eat them. Another example is the industrial over fishing of the oceans, the Guardian noted.

“The astonishing decline in wildlife population…is a reminder and perhaps the ultimate (最终的) sign of the pressure we exert (施加) on the plane,” Marco Lambertini, the director general of the WWF, wrote in the report.

These developments lead scientists to believe that there could be a sixth mass extinction, the first to be caused by humans according to the Guardian. There have been five mass extinction before, the last being 655 million years ago. That time it was the dinosaurs that died out.

WWF has called on world governments and businesses to strike a deal to protect people and nature.

Neither is the situation in China promising. According to a report by China Daily in November, Chinese paddlefish (白鲟) in the Yangtze River, may have become extinct. And there are now less than 500 green peafowl (孔雀) in the wild, reported CCTV in June.

To protect endangered animals, measures have been taken in China and progress has been made. For example, China has banned the use of rhino horn and tiger bones; and ivory (象牙) trade, reported China Daily. It also emphasizes increasing public, awareness by holding activities when celebrating the World Wildlife Day.

But more efforts are still needed to protect wildlife in China and around the world. “We are the first generation to know we are destroying our planet and the last one that can do anything about it,” WWF UK Chief Executive Tanya Steele told CNN.

1.What did the Living Planet Report point out?

A.The loss of animal populations has sped up over the past decade.

B.China is losing more animals than any other country.

C.The animal population will decrease by 60 percent in the next decade.

D.The animal population has dropped sharply in past decades.

2.What is a main cause of the loss of the fish population, according to the Guardian?

A.Over-hunting. B.Food shortage.

C.Climate change. D.Environmental pollution.

3.What can we learn from the last two paragraphs?

A.China provides a model of animal protection for other countries.

B.China has made some progress in protecting endangered animals.

C.Experts are not optimistic about the future of wildlife.

D.Governments should take the responsibility to protect wildlife.

4.What does the underlined part mean?

A.the last generation to do more things to save our planet

B.the last generation that can do anything they want to save the planet

C.we should not do anything more to destroy our planet

D.we could not care less about the planet

高二英语阅读理解中等难度题查看答案及解析

Mr Smith made many tests (作试验) with different animals and the monkey was the cleverest of all the animals. One day Mr Smith put a monkey in a room. He also put some small boxes in it. In one of the boxes there was some food. " How long will it take the monkey to find the food? " Mr Smith said to himself. " Let me wait and see. " He left the room and waited outside. Three minutes later, he put his eye to the keyhole (钥匙眼). What did he see? He saw the eye of the monkey. The monkey was on the other side of the door and looked at Mr Smith through the keyhole.

1.Mr Smith made tests with __________.

A. different animals　　 B. the monkey only

C. all the monkeys　　 D. all of the cleverest animals

2.There was some food in _______ of the small boxes.

A. some　　 B. none

C. one　　 D. each

3.Mr Smith put a monkey and some boxes in a room because he wanted to know___________.

A. how much food monkey could find

B. how many boxes the monkey could carry

C. how long it would take the monkey to put its eye to the keyhole

D. how long it would take the monkey to find the food

4.What was the monkey doing when Mr Smith was putting his eye to the keyhole?

A. The monkey was eating food.

B. The monkey was looking for food.

C. The monkey was eating on the other side of the door.

D. The monkey was looking at Mr Smith through the keyhole.

5.Mr Smith is a ________.

A. teacher　　 B. scientist (科学家)

C. doctor　　 D. farm worker

高二英语阅读理解中等难度题查看答案及解析

The police have put up posters with photos of the man they ________ in connection with the killing of two customers inside an ATM cabinet.

A. seek　　 B. are seeking

C. have sought　　 D. were seeking

高二英语单项填空中等难度题查看答案及解析

So far the majority of cloned animals have suffered from some different serious disorders, ______ died soon after birth.

A. many of which    B. many of whom C. many of them    D. many of that

高二英语单项填空中等难度题查看答案及解析

Human beings are the most intelligent of all animals because we are gifted with the ability to think and reason logically. Scientists and even common people with special intelligence have made a lot of inventions and contributions to modern lifestyle in the past. "Houses" have been the most popular area for discoveries and inventions in the past and even now.

Many household items have been the result of inventions of people who desired better functioning of the existent products. Every individual has intelligence and if it is used properly for the right purpose it leads to invention of a new tool or device. Many new household inventions are made almost every day and there are specific companies, which particularly keep a record of all these inventions.

A lot of inventions have been made recently in the household field. These products are patented(专利的)and have trade mark licenses. The patented sliding cinch is a very simple but effective method to prevent shoulder stress and injury for those who work before computers all day long. Vanity PC is a type of computer furniture that specifically hides all the computer wires and keeps a clean and good look. All the outdoor dust, mud and snow can be kept out of the house by fixing the dirt drain(排水管)at the entrance of the door. Another important invention is the automatic toilet night-light, in which a small light starts when the lid of the toilet seat is opened and closes as soon as the lid is closed.

These are some of the new household inventions invented mostly by common people. Thus, a variety of new household items are invented every day, which helps in a better functioning of household chores(家务)and in a more useful manner.

1.The first paragraph is intended to ________.

A. stress the importance of inventions

B. introduce the topic of the article

C. show the advantages of modern lifestyle

D. tell the differences between human beings and animals

2.According to the passage, people make house inventions to ________.

A. earn more money and gain awards

B. accumulate their wealth

C. improve the present living conditions

D. meet the new demands of new science

3.It can be inferred that the sliding cinch is used to ________.

A. prevent your shoulder from being over-pressured

B. keep your shoulder safe and sound when you are in an accident or an operation

C. help you practice your shoulder more often and reduce shoulder pains

D. cover your shoulder and make it stronger to resist the outside strike

4.Common people can also make good inventions because ________.

A. wisdom and inspiration sometimes come from everyday life

B. some inventions are easy to be made and can be mastered by them

C. common people have a strong desire to do something for science research

D. success is often connected with hardship and bitter experience of common people

5.The passage mainly talks about ________.

A. the correct use of household facilities

B. different ideas about household inventions

C. the history of household inventions

D. household inventions and their influence

高二英语阅读理解困难题查看答案及解析