The size and location of the world’s deserts ...

The size and location of the world’s deserts are always changing. Over millions of years, as climates change and mountains rise, new dry and wet areas appear. But within the last hundred years deserts have been increasing after frightful speed. This is partly because of natural changes, but most responsible for creating deserts are men.

Man can make deserts, but they can also prevent them from getting bigger. Algeria is planning a green belt of trees along the edge of the Sahara Desert to stop the sand. In China, too, windbreaks are being built in the northwest to keep the desert from growing.

But desert still threaten the world. Experts believe that land that is on the way to becoming deserts equals the size of Australia, Russia and US put together. Can we stop the spread of the world’s deserts and save the land that is so essential to mankind? Yes, we can, And we must.

1.The reason for the land that turns into deserts is mostly because of _______

A. the changing of the climates　　　　 B. man

C. the natural changes　　　　　　　　　　 D. the wind

2.The word “windbreak” means _______

A. trees planted as a belt to stop the wind

B. high walls as a belt to stop the wind

C. long and deep ditch as a belt to stop the wind

D. men stood side by side as a belt to stop the wind

3. The deserts still threaten the world in the way ______

A. of increasing at an unbelievable speed

B. of spreading in Australia , Russia, and the US

C. of appearing new dry and wet areas in every part of the world

D. that they cause the changes of the climates

4.Which of the following do you think is the best method?____

A. People move away from the land that is on the way to become deserts

B. To build great walls to stop the wind and sand

C. To plant trees and grass on the surface of the land

D. To irrigate the desert

高一英语阅读理解中等难度题查看答案及解析

Rivers are one of our most important natural resources. Many of the world’s great cities are located on rivers, and almost every country has at least one river flowing through it that plays an important part in the lives of its people.

Since the beginning of history, people have used rivers for transportation. The longest one in the United States is the Mississippi. The lifeline of Egypt is the Nile. To the people of India , the Ganges is great, but it is also important for transportation; ships can travel along it for a thousand miles. Other great rivers are the Congo in Africa and the Mekong in southeast Asia, The greatest of all for navigation(航海), however, is the Amazon in Brail, It is so wide and so deep that large ships can go about two thousand miles upon it.

Besides transportation, rivers give food, water to drink, water for crops, and chances for fun and recreation for the people who live along their banks. In order to increase the supply of water for crops, engineers sometimes build a dam across a river and let a lake form behind the dam. Then people can use the water not only to irrigate their fields but also to make electricity for their homes and industries.

However, large cities and industries that are located upon rivers often make problems. As the cities grow in size and industries increase in number, the water in the rivers becomes polluted with chemicals and other materials. People are learning the importance, however, of doing more to keep their rivers clean if they want to enjoy the benefits of this natural resource.

1.The greatest river for navigation is 　　　　 .

A．the Amazon　　　　 B．the Nile

C．the Mekong　　　　 D．the Mississippi

2.Which is wrong according to the passage?

A．The Nile is an important river in India.

B．Almost every country has at least one important river.

C．Many cities are located on rivers.

D．Rivers play an important part in the lives of people.

3.From a dam, people can use the water for 　　　　 .

A．keeping the rivers clean

B．only making electricity

C．washing clothes

D．irrigation and making electricity

4.The water in the river is polluted because of 　　　　 .

A．people’s drinking water too much

B．people’s swimming in the river too much

C．chemicals and other materials

D．people’s building a dam across a river

5.The main idea of the passage is about 　　　　 .

A．Rivers in cities　　　 B．The importance of rivers

C．Transportation　　　　 D．Natural resources

高一英语阅读理解中等难度题查看答案及解析

Rivers are one of our most important natural resources. Many of the world’s great cities are located on rivers, and almost _1.______ country has at least one river _2._____(flow) through it that plays 3._______ important part in the lives of its people.

Since the beginning of history, people 4.______________ (use) rivers for transportation. The longest one in the United States is the Mississippi, and the lifeline of Egypt is the Nile. __5.___________ transportation, rivers give water to drink, water for crops, and chances for fun and recreation （消遣，娱乐活动）for the people __6.______________ live along their banks.

However, large cities and industries that are located on rivers often make problems. As the cities grow _7.___________ size and industries increase in number, the water in the rivers becomes 8.__________ (pollute) with chemicals and other materials. People come to kwon the _9.____________ (important) of doing more to keep their rivers clean _10.____________ they want to enjoy the benefits of this natural resource.

高一英语语法填空中等难度题查看答案及解析

The deserts of the world are not all covered with sand. Many of them have surfaces of rock or clay or small stones. They are not flat, either. They often have high hills and deep valleys. There is some plants’ life in many parts of the desert. There is little rain in the desert, but it does fall often enough for most plants.

The deserts of the world are not uninhabited(not lived by people). People also live outside oases(绿洲), but these people are not farmers. They have camels, goats, donkeys, sheep, etc. These animals can live on the desert plants and do not need much water.

The people of the desert have to move constantly from place to place, they must always look for grass or desert plants for their animals. They usually live in tents. When there is no more food for their animals, they fold up their tents, pat them on their camels and donkeys, and move to another place. In good years, when there is enough food for their animals, they trade their skins and their goats and camel hairs with the people of oases for wheat and fruit. But in bad years, when there is not enough food for their animals, the people of the desert would attack the oases people. But they are also hospitable, no man in the desert would ever refuse to give a stranger food and water.

1. According to the passage, deserts are mostly made up of _______.

A. clay     B. rock    C. sand      D. stones

2. The underlined word “hospitable” has the meaning of being _______.

A. brave  B. cruel         C. strange    D. kind

3. In the desert _______.

A. it rains in spring only

B. it rains for a short time every month

C. there is some rain, but far from enough

D. the rainfall is just enough for the plants

4. People live _______.

A. only inside the oases  B. only outside the oases

C. both inside and outside the oases  D. in places with regular rainfalls

5. From the passage we know that life _______.

A. is hard in deserts     B. is happy in deserts

C. is impossible in deserts   D. in deserts is much better now

高一英语阅读理解中等难度题查看答案及解析

The deserts of the world are not all covered with sand. Many of them have surfaces of rock or clay or small stones. They are not flat, either. They often have high hills and deep valleys. There is some plants’ life in many parts of the desert. There is little rain in the desert, but it does fall often enough for most plants.

The deserts of the world are not uninhabited(not lived by people). People also live outside oases(绿洲), but these people are not farmers. They have camels, goats, donkeys, sheep, etc. These animals can live on the desert plants and do not need much water.

The people of the desert have to move constantly from place to place, they must always look for grass or desert plants for their animals. They usually live in tents. When there is no more food for their animals, they fold up their tents, pat them on their camels and donkeys, and move to another place. In good years, when there is enough food for their animals, they trade their skins and their goats and camel hairs with the people of oases for wheat and fruit. But in bad years, when there is not enough food for their animals, the people of the desert would attack the oases people. But they are also hospitable, no man in the desert would ever refuse to give a stranger food and water.

1. According to the passage, deserts are mostly made up of _______.

A. clay             B. rock

C. stones　　　　         D. sand

2.The underlined word “hospitable” has the meaning of being _______.

A. brave　　　　         B. cruel

C. strange　　　         D. kind

3.In the desert _______.

A. it rains in spring only

B. there is some rain, but far from enough

C. it rains for a short time every month　　　　

D. the rainfall is just enough for the plants

4.People live _______.

A. only inside the oases　　　　　　　　　　　　

B. only outside the oases

C. both inside and outside the oases　　　　　　

D. in places with regular rainfalls

5.From the passage we know that life _______.

A. is hard in deserts　　　　　　　　　　　　　　 B. is happy in deserts

C. is impossible in deserts　　　　　　　　　　 D. in deserts is much better now

高一英语阅读理解中等难度题查看答案及解析

The deserts of the world are not all covered with sand. Many of them have surfaces of rock or clay or small stones. They are not flat, either. They often have high hills and deep valleys. There is some plants’ life in many parts of the desert. There is little rain in the desert, but it does fall often enough for most plants.

The deserts of the world are not uninhabited (not lived by people). People also live outside oases(绿洲), but these people are not farmers. They have camels, goats, donkeys, sheep, etc. These animals can live on the desert plants and do not need much water.

The people of the desert have to move constantly from place to place, they must always look for grass or desert plants for their animals. They usually live in tents. When there is no more food for their animals, they fold up their tents, pat them on their camels and donkeys, and move to another place. In good years, when there is enough food for their animals, they trade their skins and their goats and camel hairs with the people of oases for wheat and fruit. But in bad years, when there is not enough food for their animals, the people of the desert would attack the oases people. But they are also hospitable, no man in the desert would ever refuse to give a stranger food and water.

1.The underlined word “hospitable” has the meaning of being _______.

2.In the desert _______.

3.People live _______.

高一英语阅读理解中等难度题查看答案及解析

The deserts of the world are not all covered with sand. Many of them have surfaces of rock or clay or small stones. They are not flat, either. They often have high hills and deep valleys. There is some plants’ life in many parts of the desert. There is little rain in the desert, but it does fall often enough for most plants.

The deserts of the world are not uninhabited(not lived by people). People also live outside oases(绿洲), but these people are not farmers. They have camels, goats, donkeys, sheep, etc. These animals can live on the desert plants and do not need much water.

The people of the desert have to move constantly from place to place, they must always look for grass or desert plants for their animals. They usually live in tents. When there is no more food for their animals, they fold up their tents, pat them on their camels and donkeys, and move to another place. In good years, when there is enough food for their animals, they trade their skins and their goats and camel hairs with the people of oases for wheat and fruit. But in bad years, when there is not enough food for their animals, the people of the desert would attack the oases people. But they are also hospitable, no man in the desert would ever refuse to give a stranger food and water.

1.According to the passage, deserts are mostly made up of _______.

A. clay             B. rock

C. stones　　　　     D. sand

2. The underlined word “hospitable” has the meaning of being _______.

A. brave　　　　         B. cruel

C. strange　　　         D. kind

3.In the desert _______.

A. it rains in spring only

B. there is some rain, but far from enough

C. it rains for a short time every month　　　　

D. the rainfall is just enough for the plants

4.People live _______.

A. only inside the oases　　　　　　　　　　　　

B. only outside the oases

C. both inside and outside the oases　　　　　　

D. in places with regular rainfalls

5.From the passage we know that life _______.

A. is hard in deserts　　　　　　　　　　　　　　

B. is happy in deserts

C. is impossible in deserts　　　　　　　　　　　

D. in deserts in much better now

高一英语阅读理解中等难度题查看答案及解析

People live in different parts of the world and lead different types of lives. Their lifestyles change across the different areas in the world. What is the difference between a city and country life? Let us see.

We can see the modern facilities everywhere in the city like the Internet, telephone, television and satellite communication facilities are widely available in the city. A majority of families in the city are enjoying this technological advancement.

The increasing population has led to an imbalance in human population. More and more industries have led to environmental problems like pollution.

However, the rise in economic growth has resulted in a self-centered nature of society. While technological advancement has brought the world closer, human beings have gone far apart from each other.

The country is not crowded with constructions all over. Houses are rather widely spaced with enough room for fields and gardens. The country is the only area fortunate enough to house the greens. People in the country live in close to nature. Apart from people, there is room for pets and animals that help keep a balance in nature.

Due to a lesser number of people in the country, it is not overcrowded by people. These areas have least amounts of pollution. Pollution is less also because of very less number of industries in the country. The life may not be as enjoyable as that in the city, but the people there are generous, kind and friendly. The country is the one where humanity(人性) is still alive.

Every coin has two sides to it. While we can’t enjoy expensive things and technology in the country, it is rich in its relationship with ‘nature’. The city life is modern in technology and career opportunities. However, the falling humanity and a bad environmental balance affect the bright future of city life.

1.What’s the main purpose of the passage? _________.

A. To persuade more people to live in the country.

B. To inform us of some information about a better life.

C. To tell us differences between city life and country life.

D. To explain why people don’t want to live in the city.

2.Which of the following shows the right structure of the passage? __________.

①                    ①                                        ①

A. ②③④   ⑤⑥     B. ②③④    ⑤⑥⑦    C. ①②③④  ⑤⑥    D.④⑤⑥   ②③

⑦                                            ⑦                 ⑦

3. According to the passage, the main reason for pollution is ____________.

A. technology and economy           B. population and industries

C. population and humanity          D. industries and balance.

4.The underlined word in the fifth paragraph most probably refers to ___________.

A. green gas    B. green buildings   C. green lands   D. green animals

5.It can be inferred from the last paragraph that __________

A. it’s up to you whether to choose city life or country life.

B. both city life and country life have advantages and disadvantages.

C. more and more people will move to the country in the future.

D. the young prefer city life while the old choose country life.

高一英语阅读理解中等难度题查看答案及解析

Camels are well known for their ability to survive the hot and dry conditions of the desert，but a study suggests they once grew well in colder climates. Scientists have found fossilized（化石） parts of a leg bone belonging to a giant camel that lived in the forests of Canada's High Arctic about 3.5million years ago.

The research is published in the journal Nature Communication. Dr. Mike Buckley, an author of the paper from the university of Manchester, said, "What's special about this story is that this is the northernmost evidence of camels. "The area was warmer than today 3.5 million years ago, but the ancient giant camels would have had to face long and bitter winter, with temperatures below freezing. There would have been snowstorms and about six months of darkness.

While scientists have known for some time that camels existed in North America, with the earliest creatures dating to about 45 million years ago, they were astonished to find a species at such a latitude（纬度).

Over the course of three investigations, which began in 2006，researchers from the Canadian Museum of Nature collected 30 pieces of the leg bone from Ellesmere Island in Canada.

Their size suggested that the animal was about 30% larger than today's camels, measuring about 2.7m from foot to shoulder. Despite its size, the researchers believe it would have been similar in appearance, although it probably had a thicker coat to stay warm.

To investigate further, the team took the protein found in the bone from the fossils and modern animals. Dr. Buckley said, "The results tell us that it is a direct ancestor of modern camels. "

He said the findings provided a new insight into the evolution of this animal. "It suggests that many of the adaptations(适应) that we currently think of, in terms of camels being adapted to warm desert-like environments, could have actually originated through adaptation to quite the opposite cold, bitter environments. Camels 'humps（峰）which store fat could help get through an Arctic six-month winter. Their large eyes would have helped them to see in the low light，and their wide，flat feet would have been just as useful for walking on snow as they are on sand，"he explained.

1.What surprised the scientists when they found the giant camel fossils? ___

A.Their size. B.Their shape.

C.Their place. D.Their number.

2.According to the text, the ancient giant camels___.

A.could date to about 45million years ago

B.struggled to survive in severe conditions

C.were the first ancestors of modern camels

D.lived in an environment without light

3.Compared with modern camels, the ancient giant camels___.

A.were much taller

B.had more humps

C.were slightly stronger

D.had thinner coat

4.We can infer from what Dr. Buckley said that___.

A.giant camels had special adaptations for polar life

B.cold environments prevented giant camels developing

C.the cause of the extinction of giant camels remains unknown

D.the hard climates forced giant camels to adapt to warm environments

高一英语阅读理解中等难度题查看答案及解析

In the middle of my home country there are very large places.They are hot and dry land called deserts.

1. Families live a long way from other people.Sometimes they are the only people for thousands of kilometres.2.

About 65years ago these people found that using strong radios was a possible way for families living far away to communicate with each other.They decided they could use the radios for school.In this way，children could talk to each other like at school.3.

The children each spent about 30minutes a day on the radio.They talked to their teacher about their work and difficulties.The teacher designed some exercises and tasks based on what they learned and posted them to the children.After finishing their work，the children sent it back to their teacher to mark.4. He tried to visit each child twice each year.This was sometimes difficult.The journey was very long and could be dangerous.In addition，the school held camps once a year.The children could all meet each other and shared their learning experience.

5.The government provides families with computers so that the children can use the Internet to talk to their teachers and classmates by e﹣mail now.The teachers enjoy their work very much because they get to know the children and their families very well.It is an interesting way to learn，don't you think？

A.The teacher also travelled around the country.

B.All over the deserts are farms and small towns.

C.This was how the first "School of the Air" started.

D.These families' children cannot go to school like you.

E.With the development of technology，computers are becoming popular.

高一英语七选五中等难度题查看答案及解析