One-fifth of the area ________ covered with t...

One-fifth of the area ________ covered with trees. About seventy percent of the trees ________ been planted recently.

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

高一英语单项填空中等难度题查看答案及解析

One-third of the area _____ covered with trees. About seventy percent of the trees _____ been planted recently.

A. is; have　　 　 　　 　 B. is; has

C. are; have　　 　　　 D. are; has

高一英语单项填空中等难度题查看答案及解析

One-third of the area ________ covered with trees. About seventy percent of the trees _______ been planted recently.

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

高一英语单项填空中等难度题查看答案及解析

________of the land in that area________covered with trees and grass.

A．Two fifth；is                B．Two fifth；are

C．Two fifths；is               D．Two fifths；are

高一英语简单题查看答案及解析

A rainforest is an area covered by tall trees with the total high rainfall spreading quite equally through the year and the temperature rarely dipping below 16 ℃. Rainforests have a great effect on the world environment because they can take in heat from the sun and adjust the climate. Without the forest cover, these areas would reflect more heat into the atmosphere, warming the rest of the world. Losing the rainforests may also influence wind and rainfall patterns, potentially causing certain natural disasters all over the world.

In the past hundred years, humans have begun destroying rainforests in search of three major resources(资源): land for crops, wood for paper and other products, land for raising farm animals. This action affects the environment as a whole. For example, a lot of carbon dioxide (二氧化碳) in the air comes from burning the rainforests. People obviously have a need for the resources we gain from cutting trees but we will suffer much more than we will benefit.

There are two main reasons for this. Firstly, when people cut down trees, generally they can only use the land for a year or two. Secondly, cutting large sections of rainforests may provide a good supply of wood right now, but in the long run it actually reduces the world’s wood supply.

Rainforests are often called the world’s drug store. More than 25% of the medicines we use today come from plants in rainforests. However, fewer than l% of rainforest plants have been examined for their medical value. It is extremely likely that our best chance to cure diseases lies somewhere in the world’s shrinking rainforests.

1.Rainforests can help to adjust the climate because they 　　　　 .

A. reflect more heat into the atmosphere

B. reduce the effect of heat from the sun on the earth

C. bring about high rainfall throughout the world

D. rarely cause the temperature to drop lower than 16 ℃

2.What does the word “this” underlined in the third paragraph refer to?

A. Humans have begun destroying rainforests.

B. People have a strong desire for resources.

C. We will lose much more than we can gain.

D. Much carbon dioxide comes from burning rainforests.

3.What might be the best title for the text?

A. Rainforests and the Environment

B. How to Save Rainforests

C. How to Protect Nature

D. Rainforests and Medical Development

高一英语阅读理解中等难度题查看答案及解析

A rainforest is an area covered by tall trees with the total high rainfall spreading quite equally through the year and the temperature rarely dipping below 16℃．Rainforests have a great effect on the world environment because they can take in heat from the sun and adjust the climate．Without the forest cover, these areas would reflect more heat into the atmosphere, warming the rest of the world．Losing the rainforests may also influence wind and rainfall patterns, potentially causing certain natural disasters all over the world．

In the past hundred years, humans have begun destroying rainforests in search of three major resources（资源）: land for crops, wood for paper and other products, land for raising farm animals．This action affects the environment as a whole．For example, a lot of carbon dioxide（二氧化碳） in the air comes from burning the rainforests．People obviously have a need for the resources we gain from cutting trees but we will suffer much more than we will benefit．

There are two main reasons for this．Firstly, when people cut down trees, generally they can only use the land for a year or two．Secondly, cutting large sections of rainforests may provide a good supply of wood right now, but in the long run it actually reduces the world’s wood supply．

Rainforests are often called the world’s drug store．More than 25% of the medicines we use today come from plants in rainforests．However, fewer than 1% of rainforest plants have been examined for their medical value．It is extremely likely that our best chance to cure diseases lies somewhere in the world’s reducing rainforests．

1.Rainforests can help to adjust the climate because they ______．

A．reflect more heat into the atmosphere

B．bring about high rainfall throughout the world

C．rarely cause the temperature to drop lower than 16℃

D．reduce the effect of heat from the sun on the earth

2.What does the word “this” underlined in the third paragraph refer to?

A．We will lose much more than we can gain．

B．Humans have begun destroying rainforests．

C．People have a strong desire for resources．

D．Much carbon dioxide comes from burning rainforests．

3.It can be inferred from the text that ______．

A．we can get enough resources without rainforests

B．there is great medicine potential(潜力) in rainforests

C．we will grow fewer kinds of crops in the gained land

D．the level of annual rainfall affects wind patterns

4.What might be the best title for the text?

A．How to Save Rainforests

B．How to Protect Nature

C．Rainforests and the Environment

D．Rainforests and Medical Development

高一英语阅读理解中等难度题查看答案及解析

A rainforest is an area covered by tall trees with the total high rainfall spreading quite equally through the year and the temperature rarely dipping below l6℃. Rainforests have a great effect on the world environment because they can take in heat from the sun and adjust the climate. Without the forest cover，these areas would reflect more heat into the atmosphere，warming the rest of the world. Losing the rainforests may also influence wind and rainfall patterns，potentially causing certain natural disasters all over the world.

In the past hundred years，humans have begun destroying rainforests in search of three major resources（资源）：land for crops，wood for paper and other products，land for raising farm animals. This action affects the environment as a whole. For example，a lot of carbon dioxide in the air comes from burning the rainforests. People obviously have a need for the resources we gain from cutting trees but we will suffer much more than we will benefit.

There are two main reasons for this. Firstly，when people cut down trees，generally they can only use the land for a year or two. Secondly，cutting large sections of rainforests may provide a good supply of wood right now，but in the long run it actually reduces the world’s wood supply.

Rainforests are often called the world’s drug store. More than 25％ of the medicines we use today come from plants in rainforests. However，fewer than l％of rainforest plants have been examined for their medical value. It is extremely likely that our best chance to cure diseases lies somewhere in the world’s shrinking rainforests.

1.Rainforests can help to adjust the climate because they________.

A．reflect more heat into the atmosphere

B．bring about high rainfall throughout the world

C．rarely cause the temperature to drop lower than l6℃

D．reduce the effect of heat from the sun on the earth

2.What does the word “this” underlined in the third paragraph refer to?

A．We will lose much more than we can gain.

B．Humans have begun destroying rainforests.

C．People have a strong desire for resources.

D．Much carbon dioxide comes from burning rainforests.

3.It can be inferred from the text that________.

A．we can get enough resources without rainforests

B．there is great medicine potential in rainforests

C．we will grow fewer kinds of crops in the gained land

D．the level of annual rainfall affects wind patterns

4.Which of the following statements is TRUE?

A．Losing the rainforests has caused natural disasters all over the world.

B．Cutting rainforests will help increase the world’s wood supply in the future.

C．Rainforests can’t provide medical cures for diseases at all

D．Rainforests helps to control the temperature and adjust climate for humans.

5.What might be the best title for the text?

A．How to Save Rainforests

B．How to Protect Nature

C．Rainforests and the Environment

D．Rainforests and Medical Development

高一英语阅读理解中等难度题查看答案及解析

According to the survey, two thirds of the area__________covered by trees now and 90% of the population__________contributions to the Greening Project in the city.

A. is   ; has made                     B. are; have made

C. is; have made                       D. are; has made

高一英语单项填空中等难度题查看答案及解析

30.   It was once called the Sea of Bamboo, but now only one fifth of the area ______ covered with bamboo, and sixty percent of other plants ______ taken the place of the bamboo.

高一英语单项填空简单题查看答案及解析

Death Valley is one of the most famous deserts in the United States, covering a wide area with its alkali sand Almost 20 percent of this area is well below sea level, and Badwater, a salt water pool, is about 280 feet below sea level and the lowest point in the United States.

Long ago the Panamint Indians called this place “Tomesha”— the land of fire. Death Valley’s present name dates back to 1849, when a group of miners coming across from Nevada became lost in its unpleasantness and hugeness and their adventure turned out to be a sad story. Today Death Valley has been declared（宣告）a National Monument（纪念碑）and is crossed by several well-marked roads where good services can be found easily. Luckily the change created by human settlement has hardly ruined the special beauty of this place.

Here nature created a lot of surprise, almost like the sights on the moon, ever-changing as the frequent（频繁的）wind moves the sand about, showing the most unusual colors. One of the most surprising and variable（多变的）parts of Death Valley is the Devil’ s Golf Course, where it seems hard for one to tell reality from terrible dreams. Sand sculptures（沙雕）stand on a frightening ground, as evening shadows move and lengthen.

1... _______ is the lowest place in the desert.

A. Tomesha     B. Death Valley     C. Nevada       D. Badwater

2... The present name of the valley comes from _______.

A. an Indian name                      B. the death of the miners

C. the local people                        D. a National Movement

3... From the passage we can learn that _______.

A. no one had ever known the desert before the miners

B. it’s still not easy to travel across the desert

C. people can find gas-stations, cafes and hotels in the desert

D. people have changed the natural sight of the desert

4.. Devil Golf Course is famous for _______.

A. the frequent wind                   B. the colors of the sand

C. dream-like sights                   D. the sand sculptures

5.. From the passage we can see that the writer _______ the Death Valley.

A. appreciates     B. is fearful of        C. dislikes     D. is tired of

高一英语阅读理解简单题查看答案及解析