Different kinds of soil conservation methods are used by farmers to protect their land from damage by farming and the forces of nature. One important form of soil conservation is the use of windbreaks.
Windbreaks are barriers (屏障) formed by trees and other plants with many leaves. Farmers plant them in lines around their fields. Windbreaks stop the wind from blowing soil away. They also keep the wind from destroying or damaging crops. They are very important for growing grains, such as wheat.
There have been studies done on windbreaks in parts of West Africa, for example. They found that grain harvests can be twenty percent higher in fields protected by windbreaks compared to fields without such protection.
However, windbreaks seem to work best when they allow a little wind to pass through. If the wall of trees and plants stops wind completely, then violent air motions will take place close to the ground. These motions will lift soil into the air where it will be blown away. For this reason, a windbreak is best if it has only sixty to eighty percent of the trees and plants needed to make a solid line.
There should be at least two lines in each windbreak. One line should be large trees. The second line, right next to it, can be shorter trees and other plants with leaves. Locally grown trees and plants are best for windbreaks.
1.What is a windbreak according to the passage?
A. A windbreak is a concrete wall to prevent the strong winds.
B. A windbreak is a wood with different kinds of trees.
C. A windbreak is a wall of trees to hold soil in place.
D. A windbreak is a wall of wind to fight wind from the opposite way.
2.When can windbreaks be most effective?
A. The trees are planted one by one.
B. The trees and plants grow in a line.
C. The trees grow as high as they can.
D. Windbreaks allow a little wind to blow through.
3.Which of the following statements is NOT true?
A. A windbreak is one of the best forms of soil conversation.
B. A windbreak is very good for growing grains such as wheat.
C. One line of trees is enough for soil protection.
D. Locally grown trees and plants are the top choice for a windbreak.
高三英语阅读理解中等难度题
Different kinds of soil conservation methods are used by farmers to protect their land from damage by farming and the forces of nature. One important form of soil conservation is the use of windbreaks.
Windbreaks are barriers (屏障) formed by trees and other plants with many leaves. Farmers plant them in lines around their fields. Windbreaks stop the wind from blowing soil away. They also keep the wind from destroying or damaging crops. They are very important for growing grains, such as wheat.
There have been studies done on windbreaks in parts of West Africa, for example. They found that grain harvests can be twenty percent higher in fields protected by windbreaks compared to fields without such protection.
However, windbreaks seem to work best when they allow a little wind to pass through. If the wall of trees and plants stops wind completely, then violent air motions will take place close to the ground. These motions will lift soil into the air where it will be blown away. For this reason, a windbreak is best if it has only sixty to eighty percent of the trees and plants needed to make a solid line.
There should be at least two lines in each windbreak. One line should be large trees. The second line, right next to it, can be shorter trees and other plants with leaves. Locally grown trees and plants are best for windbreaks.
1.What is a windbreak according to the passage?
A. A windbreak is a concrete wall to prevent the strong winds.
B. A windbreak is a wood with different kinds of trees.
C. A windbreak is a wall of trees to hold soil in place.
D. A windbreak is a wall of wind to fight wind from the opposite way.
2.When can windbreaks be most effective?
A. The trees are planted one by one.
B. The trees and plants grow in a line.
C. The trees grow as high as they can.
D. Windbreaks allow a little wind to blow through.
3.Which of the following statements is NOT true?
A. A windbreak is one of the best forms of soil conversation.
B. A windbreak is very good for growing grains such as wheat.
C. One line of trees is enough for soil protection.
D. Locally grown trees and plants are the top choice for a windbreak.
高三英语阅读理解中等难度题查看答案及解析
Farmers use different kinds of soil conservation methods to protect their land from damage by farming and the forces of nature . One important form of soil conservation is the use of windbreaks . Windbreaks are barriers formed by trees and other plants with many leaves . Farmers plant them in lines around their fields .
Windbreaks stop the wind from blowing soil away . They also keep the wind from destroying or damaging crops . They are very important for growing grains , such as wheat . There have been studies done on windbreaks in parts of West Africa , for example . These found that grain harvests can be twenty percent higher in fields protected by windbreaks compared to fields without such protection .
However , windbreaks seem to work best when they allow a little wind to pass through . If the wall of trees and plants stops wind completely , then violent air motions will take place close to the ground . These motions will lift soil into the air where it will be blown away .
For this reason , a windbreaks is best if it has only sixty to eighty percent of the trees and plants needed to make a solid line . An easy role to remember is that windbreaks can protect areas up to ten times the height of the tallest trees in the windbreaks .
These should be at least two lines in each windbreak . One line should be large trees . The second line , right next to it , can be shorter trees and other plants with leaves . Locally grown trees and plants are best for windbreaks .
1.What is the best title for the passage?
A.Building a windbreak to protect soil | B.Building a windbreak to protect crops |
C.Using a windbreak to improve grains | D.Using a windbreak to improve plants |
2.In the fifth paragraph the author tells us windbreaks______.
A.do not work at all | B.do not stop wind fully |
C.will not take place | D.will not allow wind to pass through |
3.According to the passage , which of the following statement is wrong ?
A.Windbreaks are barriers .
B.Windbreaks can be used to make fences .
C.In general , there are two lines in all in every windbreak .
D.Windbreaks can protect areas .
高三英语阅读理解简单题查看答案及解析
The soil is becoming poor because farmers here mostly use only one kind of chemical fertilizer for several years________.
A. in a row B. on a large scale
C. at random D. to a degree
高三英语单项填空中等难度题查看答案及解析
There are two methods by which hydrogen (氢) can be used to power cars. The first way is to use hydrogen to drive the engine, in much the same way as many cars use gas. The second method is to use the reaction of hydrogen with oxygen in a battery, making the car a kind of electric one.
The dream of producing hydrogen in the car while driving along by electrolyzing(电解)water is a long way off, so we are still at the period of batteries and filling the tank with hydrogen gas. This is the difficulty for potential car users and producers. There are only sixteen hydrogen filling stations in Los Angeles and none in 99% of other cities worldwide.
Indeed, some of the big name automobile producers have pulled out of the race to put the first practical hydrogen car on the streets. Ford and GM have announced that they are pulling out in America and so has Renault in France.
However, the Japanese companies are pressing on. In fact, Honda introduced its first hydrogen fuel cell car in 1999. They are now producing second generation hydrogen car known as the FCX Clarity. Guess where they are available for sale? In only one city because of its filling stations.
Honda thinks that they could go into full-scale production of the FCX Clarity by 2020 if the world is prepared for them by then.
Then there are hydrogen-powered buses in several European cities including Amsterdam, Barcelona, Hamburg, London, Luxembourg and Madrid. Lotus, the makers of London taxis, have announced that they propose to manufacture hydrogen-powered taxis in time for the London Olympics.
So, the hydrogen vehicle is out there and the numbers will be growing fairly soon. The buses go back to their bus station, where an electrolyzing machine changes water into fuel for them to fill up on and the same will be the case for many of London’s taxis.
Unfortunately, getting fuel is not the only difficulty for the average motorist, a number of these vehicles cost about $300,000 each.
1.According to the text, hydrogen-powered buses ________.
A.can easily be filled up with gas. |
B.are likely to sell well in the future. |
C.are mainly used in the United States |
D.won’t be used in the London Olympics |
2.What does the underlined word “them” in paragraph 5 refer to?
A.Japanese companies | B.Hydrogen buses |
C.The FCX Clarity | D.Filling stations |
3.Where are hydrogen cars currently available for sale?
A.In Barcelona | B.In Hamburg | C.In London | D.In Los Angeles |
4.We can learn from the text that ________.
A.there are sixty hydrogen filling stations all over the world |
B.hydrogen vehicles fueled by water will be very expensive |
C.Honda will mass-produce the FCX Clarity by 2012 |
D.Honda produced its first hydrogen car in 1989 |
高三英语阅读理解困难题查看答案及解析
______good service, the restaurant offers different kinds of traditional Fujian dishes
A.Far from B. Apart from
C.Instead of D.Regardless of
高三英语单项填空中等难度题查看答案及解析
______ good service, the restaurant offers different kinds of traditional Fujian dishes.
A. Far from B. Apart from
C. Instead of D. Regardless of
高三英语单项填空中等难度题查看答案及解析
Management theories are ____ but the method of doing business is different.
A.the same pretty much | B.much pretty the same |
C.the same much pretty | D.pretty much the same |
高三英语单项填空简单题查看答案及解析
If we use the new recycling method, a large number of trees________.
A.are saved B.will save C.will be saved D.have saved
高三英语单项填空中等难度题查看答案及解析
Different Kinds of Birds
Avocets
There are 4 different species of Avocet found around the world-Pied Avocet , Red-necked Avocet, Andean Avocet, and American Avocet. This bird is found in North and South America, Europe, and even Australia. This long-legged bird has webbed feet and an upturned, thin bill.
Bald Eagles
The bald eagle is found in wetlands and near coastlines. They have very large and broad wings, with a broad tail. The head and tail are white in color, which is the major distinguishable factor of the bald eagle. The long, hooked bill is yellow in color. They feed on fish, ducks, rabbits, geese, etc.
Eastern Bluebirds
These are around 61/2 inches in length .Such birds are found mainly in gardens woodlands, and orchards with the arrival of spring. Male Eastern Bluebirds are bright blue on the upper half and have a white belly. Female Eastern Bluebirds have a grayish head with shades of blue as well. New York and Missouri have named this creature as their state bird.
Flamingos
These pink-bodied birds with a unique beak, are generally found in large groups. The beaks are capable of removing mud before they can eat their food. Flamingos can be found in many African countries, areas of Florida, and one particular type of species is found only in the Andean highlands.
Kingfishers
There are over 90 various species of Kingfishers found in the woodland areas as well as wetlands across the world. They are excellent divers when it comes to catching fish in the rivers. Their pointed bills are what help them bag the catch. Kingfishers have good eyesight whether they are in air or underwater.
1.____ most probably mean the same.
A. Bill and beak B. Head and beak C. Bill and belly D. Leg and feet
2.Which of the following is true?
A. Eastern Bluebirds are all blue in color.
B. Avocets can be found around the world.
C. The white head and tail make Bald Eagles distinguishable.
D. More Kingfishers can be found in wetlands than in the woodland areas.
3.Birds that can be found only in the Andean highlands are ________.
A. Bald Eagles
B. Female Eastern Bluebirds
C. Andean Avocets
D. one special type of Flamingos
4.It can be inferred from the passage that what Bald Eagles and Kingfishers have in common is their____.
A.habitats B. shapes C. ability to catch fish D. eyesight in air or under water
高三英语阅读理解中等难度题查看答案及解析
People __1._ (live) in different countries made different kinds of words. Today there are about fifteen hundred _2.___ in the world. Each contains many thousands of words. A very large dictionary, for example, contains four _3.___ five hundred thousand words. But we do not need _4.__these. To read short stories you need to know only about two thousand words. _5._ you leave school, you will learn only one thousand or more.
The words you know are called your vocabulary. You should try to make your vocabulary 6._ (big). Read as many books as we can. There are a lot of books _7.__ (write) in easy English. You will enjoy them. When you come across _8.__ new word, look it _9.___ in your dictionary. Your dictionary is your _10._ (much) useful book.
高三英语语法填空中等难度题查看答案及解析