Today there are many fires than in the past. Over 100,000 wildfires burn each year in America. Russia has 20,000 to 35,000 wildfires every year. Australia has on average 60,000 each year. These fires destroy(损害)huge areas of forests and burn hundreds of homes.
Many experts believe there are several reasons for this sudden increase in fires. The first reason is climate(气候)change. Recent weather has been warmer and drier. This leads to dangerous fire conditions. When lightening strikes(发生雷电),dry grass easily catches fire. Hot winds add to the problem. The wind spreads a fire quickly. In 2010, Russia had the hottest and driest summer in a century. In just one month, 500 fires destroyed over 2,000 homes. Some people lost their lives.
Traditional fire-fighting practices are another reason for the increase in fires. In America, firefighters used to quickly put out every fire. They didn’t allow the grass and trees to burn. As a result, today many forests have thicker vegetation(植被).Thicker vegetation means more fuel(燃料)for fires. Also, without fires from time to time, forests become overcrowded and unhealthy. Some trees are dead. The dead wood then easily catches fire. So surprisingly, America has many more fires today partly because of its past fire-fighting practices.
Scientists now understand that a fire can be a natural part of a healthy forest. As a result, countries like Australia allow more fires to burn naturally. Sometimes, fire fighters even start fires to get rid of(去除)dead wood. Of course, they carefully control the fires. The fire thins out old trees. This allows sunlight to reach the ground. As a result, fires help new trees to grow. Therefore, if a fire is not a serious threat(威胁)to people, firefighters may let it burn naturally.
1.Why did Russia have so many fires in one month in 2010?
A. Because lightening spread the fire.
B. Because there was much fuel for fires.
C. Because there were not enough firefighters.
D. Because it was unusually hot, dry and windy.
2.What happens because of the traditional fire-fighting practices in the USA?
A. There are fewer wildfires.
B. Trees and grass become thicker.
C. The weather becomes warmer and drier.
D. Sunlight reaches the ground to help forests.
3.What is the main idea of Paragraph 4?
A. Fires are serious threats to human beings.
B. Australian firefighters don’t put out fires.
C. Fires can play an important role I forests.
D. It’s difficult for firefighters to control the fires.
4.Which of the following is true according to the passage?
A. Not all the fires in the forests must be put out.
B. People’s carelessness leads to dangerous fires.
C. Australia allows all the fires to burn naturally.
D. There are more fires in Russia than in the USA.
七年级英语阅读单选困难题
Today there are many fires than in the past. Over 100,000 wildfires burn each year in America. Russia has 20,000 to 35,000 wildfires every year. Australia has on average 60,000 each year. These fires destroy(损害)huge areas of forests and burn hundreds of homes.
Many experts believe there are several reasons for this sudden increase in fires. The first reason is climate(气候)change. Recent weather has been warmer and drier. This leads to dangerous fire conditions. When lightening strikes(发生雷电),dry grass easily catches fire. Hot winds add to the problem. The wind spreads a fire quickly. In 2010, Russia had the hottest and driest summer in a century. In just one month, 500 fires destroyed over 2,000 homes. Some people lost their lives.
Traditional fire-fighting practices are another reason for the increase in fires. In America, firefighters used to quickly put out every fire. They didn’t allow the grass and trees to burn. As a result, today many forests have thicker vegetation(植被).Thicker vegetation means more fuel(燃料)for fires. Also, without fires from time to time, forests become overcrowded and unhealthy. Some trees are dead. The dead wood then easily catches fire. So surprisingly, America has many more fires today partly because of its past fire-fighting practices.
Scientists now understand that a fire can be a natural part of a healthy forest. As a result, countries like Australia allow more fires to burn naturally. Sometimes, fire fighters even start fires to get rid of(去除)dead wood. Of course, they carefully control the fires. The fire thins out old trees. This allows sunlight to reach the ground. As a result, fires help new trees to grow. Therefore, if a fire is not a serious threat(威胁)to people, firefighters may let it burn naturally.
1.Why did Russia have so many fires in one month in 2010?
A. Because lightening spread the fire.
B. Because there was much fuel for fires.
C. Because there were not enough firefighters.
D. Because it was unusually hot, dry and windy.
2.What happens because of the traditional fire-fighting practices in the USA?
A. There are fewer wildfires.
B. Trees and grass become thicker.
C. The weather becomes warmer and drier.
D. Sunlight reaches the ground to help forests.
3.What is the main idea of Paragraph 4?
A. Fires are serious threats to human beings.
B. Australian firefighters don’t put out fires.
C. Fires can play an important role I forests.
D. It’s difficult for firefighters to control the fires.
4.Which of the following is true according to the passage?
A. Not all the fires in the forests must be put out.
B. People’s carelessness leads to dangerous fires.
C. Australia allows all the fires to burn naturally.
D. There are more fires in Russia than in the USA.
七年级英语阅读单选困难题查看答案及解析
任务型阅读
Today, there are more than 100 kinds of dogs in the world. Many people like to have dogs as their pets. Dogs are friends of man because they are lovely and they are faithful to their masters.Dogs can do a lot of work for man. They play with us. They hunt with us. They also keep door for us. But long ago, dogs all over the world were wild(野生的).
All dogs have the same ancestor(祖先). People believe that a dog’s ancestor may be a wolf. Other animals, such as the fox, came from this ancestor, too. Millions of years ago, man began to feed and train wild dogs. The strong dogs became working animals. Working dogs had many kinds of jobs. They could help people to pull heavy things. They learned to keep an eye on the sheep and other small animals. They could help people in the war(战争). Some dogs were not strong. But they could help man hunt for game. Other dogs were the best as pets.
1.How many kinds of dogs are there in the word?______________________________
2.Why do people like dogs ?____________________________________________
3.Whose ancestor may a wolf be according to the passage?______________________________
4.When did dogs appear(出现) on Earth?___________________________________________
5.What kind of dogs can be working dogs ?_______________________________________
七年级英语回答问题中等难度题查看答案及解析
Today, there are more than 100 kinds of dogs in the world. Many people like to have dogs as their pets. Dogs are friends of man because they are lovely and they are faithful(忠诚的) to their masters.
Dogs can do a lot of work for man. They play with us. They hunt with us. They also keep door for us. But long ago,dogs all over the world were wild(野生的).
All dogs have the same ancestor(祖先).People believe that a dog's ancestor may be a wolf .Other animals, such as the fox, came from this ancestor, too. Millions of years ago, man began to feed and train wild dogs. The strong dogs became working animals.Working dogs had many kinds of jobs. They could help people to pull heavy things. They learned to keep an eye on the sheep and other small animals. They could help people in the war(战争). Some dogs were not strong. But they could help man hunt. Other dogs were the best as pets.
根据短文内容,回答下列问题。(NO MORE THAN 5 WORDS)
1.How many kinds of dogs are there in the word?
___________________________________________________________________________.
2.Why do people like dogs?
___________________________________________________________________________.
3.Whose ancestor may be a wolf according to the passage?
___________________________________________________________________________.
4.When did man begin to feed and train wild animals?
___________________________________________________________________________.
5.What kind of dogs can be working dogs?
___________________________________________________________________________.
七年级英语回答问题中等难度题查看答案及解析
There are more than 3,000 students in Longling School.
A. about B. close to C. over
七年级英语单项填空中等难度题查看答案及解析
认真阅读短文, 判断下列句子是否正确, 正确填T, 错误填F。
There are more than 12,000,000 pets in England. Many families have one or two pets. Dogs are their favourite pets and there are about 6,000,000 of them in England. The second favourite are cats (about 5,000,000) and the third favourite is a bird-budgie.
Some families don’t keep cats or dogs. They keep some other animals in their homes.
The English people take good care of their pets. They give them nice names: Rover, Rex, Cindy, Misty (for dogs); Albert, Snowy, Fluffy, Tom (for cats); Guy, Scamper, Shipley (for monkeys).
When they speak of their pets, they say “He”, “She”, not “It”.
The English people give their pets nice food to eat. They buy food for their pets in pet shops. The English people are pet lovers!
1.There are more cats than dogs in England.
2.Many families in England don’t keep cats or dogs.
3.Cindy is the name for a dog.
4.When the English people speak of their pets, they don’t say “It”.
5.The English people buy food for their pets in the supermarket.
七年级英语其他题中等难度题查看答案及解析
认真阅读短文, 判断下列句子是否正确, 正确填T, 错误填F。
There are more than 12,000,000 pets in England. Many families have one or two pets. Dogs are their favourite pets and there are about 6,000,000 of them in England. The second favourite are cats (about 5,000,000) and the third favourite is a bird-budgie.
Some families don’t keep cats or dogs. They keep some other animals in their homes.
The English people take good care of their pets. They give them nice names: Rover, Rex, Cindy, Misty (for dogs); Albert, Snowy, Fluffy, Tom (for cats); Guy, Scamper, Shipley (for monkeys).
When they speak of their pets, they say “He”, “She”, not “It”.
The English people give their pets nice food to eat. They buy food for their pets in pet shops. The English people are pet lovers!
1.There are more cats than dogs in England.
2.Many families in England don’t keep cats or dogs.
3.Cindy is the name for a dog.
4.When the English people speak of their pets, they don’t say “It”.
5.The English people buy food for their pets in the supermarket.
七年级英语阅读理解中等难度题查看答案及解析
It is said that there’s over 5, 000 kinds of languages in the world.
A. more than B. less than
C. more or less D. as many as
七年级英语单项填空中等难度题查看答案及解析
完形填空。(10小题,每小题1分,共10分)
More than three thousand languages are spoken in the world today . Many of these languages are spoken _36 small groups of people . On the 37 ,hand , over two hundred languages are spoken by one million or more people . Chinese is the language spoken by the ___38 ___number of people in the world . But English is most 39 spoken in the world .
English is spoken by more than four hundred million people 40 their first language . It is 41 by most people in the U.S.A. , Great Britain , Canada , Australia and New Zealand . And it is 42 used very widely in many other countries of the world . Look at the back of your watch . You may see the English words “Made 43 China” , or “Japan” , even “Germany” .
English is the first language in 44 of these . Why are English words 45 on it ? That is because in the modern world English is widely used for business between different countries .
1. A. as B. by C. for D. with
2. A. other B. others C. another D. the second
3. A. biggest B. bigger C. largest D. larger
4. A. wide B. wider C. widest D. widely
5. A. of B. in C. by D. as
6. A. spoke B. spoken C. speak D. speaking
7. A .either B .as well C. also D. too
8. A. at B. of C. with D. in
9. A. no one B. none C. nothing D. no
10.A. written B. wrote C. write D. writing
七年级英语完型填空简单题查看答案及解析
There are over fifty people in the meeting room. “over” means______.
A. above B. more C. more than D. less than
七年级英语单选题简单题查看答案及解析
—How many animals are there in the zoo?
—There are over ________ in it.
A. two hundred animals
B. two hundred of animal
C. two hundreds animal
D. two hundreds animals
七年级英语单项填空中等难度题查看答案及解析