15.Gas can be from coal. 查看更多

 

题目列表(包括答案和解析)

When the Audet family turns on the lights at Blue Farm, they are using electricity that comes from cows—cow manure (粪肥), to be specific.
Cows produce a lot of wastes. One cow can create 30 gallons of wastes each day. Now imagine the output of over 1,000 cows at Blue Farm. That’s really a big amount.
When farmers clean their barns, they put the wastes in a big heap, and spread some of them on their fields for fertilizer(肥料). But now places like Blue Spruce Farm have a new way of using cow wastes. They use them to produce electricity.
Here’s how it works: A big machine moves back and forth cleaning the barn floor. “The cows aren’t bothered,” says Marie Audet. “They are animals of habit; they get used to it, and just lift one foot and then another to let it go by.”
The machine pushes the manure into a big 600-gallon tank like a small swimming pool. The tank is called a digester (化粪池) because what happens there is just like what happens inside a cow: Bacteria(细菌) get to work and continue to digest the manure.
Methane gas (甲烷、沼气)in the atmosphere is known as a “greenhouse” gas because it keeps heat just like a greenhouse does, causing our planet to warm up. That’s an environmental concern. But the digester has a good result. Its gas is kept and used to power electric generators (发电机).
At Blue Farm, the generators make enough electricity to power 400 homes. The Audet family sells the extra electricity they can’t use themselves.
【小题1】We learn from the text that the Audet family is using cow wastes to ______.
A.make electricity B.produce fertilizerC.build their farm D.feed the cows
【小题2】How are the cow wastes collected into the digester at Blue Farm?
A.Marie Audet does the workB.The job is done by machine
C.The cows lift the cow wastesD.Bacteria get to work on them
【小题3】 According to the passage, which of the following is changed into electricity?
A.The power of moving water. B.The heat of burning coal.
C.The power of sunlight.D.The heat of the methane gas
【小题4】The new way of using cow wastes at Blue Farm might be best described as ______.
A.reducingB.savingC.recyclingD.changing
【小题5】 What is the main purpose for writing the passage?
A.To introduce a new way of making electricityB.To explain how a new energy works better
C.To show a new rebuilding plan for a big farmD.To explain the reasons for green house effect

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When the Audet family turns on the lights at Blue Farm, they are using electricity that comes from cows—cow manure (粪肥), to be specific.
Cows produce a lot of wastes. One cow can create 30 gallons of wastes each day. Now imagine the output of over 1,000 cows at Blue Farm. That’s really a big amount.
When farmers clean their barns, they put the wastes in a big heap, and spread some of them on their fields for fertilizer(肥料). But now places like Blue Spruce Farm have a new way of using cow wastes. They use them to produce electricity.
Here’s how it works: A big machine moves back and forth cleaning the barn floor. “The cows aren’t bothered,” says Marie Audet. “They are animals of habit; they get used to it, and just lift one foot and then another to let it go by.”
The machine pushes the manure into a big 600-gallon tank like a small swimming pool. The tank is called a digester (化粪池) because what happens there is just like what happens inside a cow: Bacteria(细菌) get to work and continue to digest the manure.
Methane gas (甲烷、沼气)in the atmosphere is known as a “greenhouse” gas because it keeps heat just like a greenhouse does, causing our planet to warm up. That’s an environmental concern. But the digester has a good result. Its gas is kept and used to power electric generators (发电机).
At Blue Farm, the generators make enough electricity to power 400 homes. The Audet family sells the extra electricity they can’t use themselves.
【小题1】We learn from the text that the Audet family is using cow wastes to ______.

A.make electricity B.produce fertilizerC.build their farm D.feed the cows
【小题2】How are the cow wastes collected into the digester at Blue Farm?
A.Marie Audet does the workB.The job is done by machine
C.The cows lift the cow wastesD.Bacteria get to work on them
【小题3】 According to the passage, which of the following is changed into electricity?
A.The power of moving water. B.The heat of burning coal.
C.The power of sunlight.D.The heat of the methane gas
【小题4】The new way of using cow wastes at Blue Farm might be best described as ______.
A.reducingB.savingC.recyclingD.changing
【小题5】 What is the main purpose for writing the passage?
A.To introduce a new way of making electricityB.To explain how a new energy works better
C.To show a new rebuilding plan for a big farmD.To explain the reasons for green house effect

查看答案和解析>>

When the Audet family turns on the lights at Blue Farm, they are using electricity that comes from cows—cow manure (粪肥), to be specific.
Cows produce a lot of wastes. One cow can create 30 gallons of wastes each day. Now imagine the output of over 1,000 cows at Blue Farm. That’s really a big amount.
When farmers clean their barns, they put the wastes in a big heap, and spread some of them on their fields for fertilizer(肥料). But now places like Blue Spruce Farm have a new way of using cow wastes. They use them to produce electricity.
Here’s how it works: A big machine moves back and forth cleaning the barn floor. “The cows aren’t bothered,” says Marie Audet. “They are animals of habit; they get used to it, and just lift one foot and then another to let it go by.”
The machine pushes the manure into a big 600-gallon tank like a small swimming pool. The tank is called a digester (化粪池) because what happens there is just like what happens inside a cow: Bacteria(细菌) get to work and continue to digest the manure.
Methane gas (甲烷、沼气)in the atmosphere is known as a “greenhouse” gas because it keeps heat just like a greenhouse does, causing our planet to warm up. That’s an environmental concern. But the digester has a good result. Its gas is kept and used to power electric generators (发电机).
At Blue Farm, the generators make enough electricity to power 400 homes. The Audet family sells the extra electricity they can’t use themselves.
小题1:We learn from the text that the Audet family is using cow wastes to ______.
A.make electricity B.produce fertilizerC.build their farm D.feed the cows
小题2:How are the cow wastes collected into the digester at Blue Farm?
A.Marie Audet does the workB.The job is done by machine
C.The cows lift the cow wastesD.Bacteria get to work on them
小题3: According to the passage, which of the following is changed into electricity?
A.The power of moving water. B.The heat of burning coal.
C.The power of sunlight.D.The heat of the methane gas
小题4:The new way of using cow wastes at Blue Farm might be best described as ______.
A.reducingB.savingC.recyclingD.changing
小题5: What is the main purpose for writing the passage?
A.To introduce a new way of making electricityB.To explain how a new energy works better
C.To show a new rebuilding plan for a big farmD.To explain the reasons for green house effect

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Canada, the second largest country in the world, lies in the north of America. The population of Canada is about 29 million and the capital is Ottawa. The country covers about 9,980,000 square kilometers and six of the world’s 24 time areas (时区) as well.
There are two official languages spoken in Canada: French and English. Many people can speak both English and French. More than 60% of Canadians speak English as their language. About 25% of the Canadians speak French. In one province of Canada where French is the common language, the programmes on TV and radios as well as the teaching in schools are all in French. Today, Chinese has become the first inofficial(非官方的) language in Canada.
Canada’s climate is not as cold all year around as some may believe. In winter, temperatures fall below freezing point throughout most of Canada. In summer, the southern provinces often experience high levels of temperatures that can reach over 30℃ regularly. The weather in Canada is just like the weather in China. It is rather cold in the north while it is fairly warm in the south. Winters in the north last long with snow for half a year. As the cold northern climate, only one-fifth of the land is suitable for farming.
As it is known to all, Canada has one-third of the world’s supply of fresh water. It has many great lakes. There are five great lakes in the south. And there are many others, especially in the north. It is also rich in natural resources, such as coal, oil, natural gas of which Canadians make use to produce energy.
People of northern Canada are called Inuit (因纽特人), who came from Asia and settled in Canada about 4,000 years ago. They used to travel around from place to place with teams of dogs which pulled their baggage. Now, they seldom move. There are about 2,500 Inuit in all. The government has started a new school project in which Inuit teach their own young children. So it is hoped that the way of Inuit life will be kept alive for more centuries.
【小题1】How many people are there living in Canada?

A.About 24 million.B.About 29 million.
C.About 25 million.D.About 9,980,000.
【小题2】Today, most Canadians speak _________ as their first language.
A.FrenchB.ChineseC.EnglishD.Japanese
【小题3】Only ________ of the land is fit for farming because of the cold northern climate.
A.15%B.20%C.30%D.50%
【小题4】Which statement about Inuit is NOT right?
A.They settled in Canada about 4,000 years ago.
B.Dogs could help them pull their baggage when they had to travel years ago.
C.They can teach their own young children according to the new school project.
D.They way of Inuit life may disappear in the future.
【小题5】From the passage we can know _________.
A.Canada lies in the south of America
B.Canada has many different kinds of natural resources.
C.the weather in Canada is so cold the whole year as some people think
D.the Canadians government pays little attention to Inuit’s education.

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Canada, the second largest country in the world, lies in the north of America. The population of Canada is about 29 million and the capital is Ottawa. The country covers about 9,980,000 square kilometers and six of the world’s 24 time areas (时区) as well.

There are two official languages spoken in Canada: French and English. Many people can speak both English and French. More than 60% of Canadians speak English as their language. About 25% of the Canadians speak French. In one province of Canada where French is the common language, the programmes on TV and radios as well as the teaching in schools are all in French. Today, Chinese has become the first inofficial(非官方的) language in Canada.

Canada’s climate is not as cold all year around as some may believe. In winter, temperatures fall below freezing point throughout most of Canada. In summer, the southern provinces often experience high levels of temperatures that can reach over 30℃ regularly. The weather in Canada is just like the weather in China. It is rather cold in the north while it is fairly warm in the south. Winters in the north last long with snow for half a year. As the cold northern climate, only one-fifth of the land is suitable for farming.

As it is known to all, Canada has one-third of the world’s supply of fresh water. It has many great lakes. There are five great lakes in the south. And there are many others, especially in the north. It is also rich in natural resources, such as coal, oil, natural gas of which Canadians make use to produce energy.

People of northern Canada are called Inuit (因纽特人), who came from Asia and settled in Canada about 4,000 years ago. They used to travel around from place to place with teams of dogs which pulled their baggage. Now, they seldom move. There are about 2,500 Inuit in all. The government has started a new school project in which Inuit teach their own young children. So it is hoped that the way of Inuit life will be kept alive for more centuries.

1.How many people are there living in Canada?

A.About 24 million.                       B.About 29 million.

C.About 25 million.                        D.About 9,980,000.

2.Today, most Canadians speak _________ as their first language.

A.French           B.Chinese           C.English            D.Japanese

3.Only ________ of the land is fit for farming because of the cold northern climate.

A.15%             B.20%              C.30%              D.50%

4.Which statement about Inuit is NOT right?

A.They settled in Canada about 4,000 years ago.

B.Dogs could help them pull their baggage when they had to travel years ago.

C.They can teach their own young children according to the new school project.

D.They way of Inuit life may disappear in the future.

5.From the passage we can know _________.

A.Canada lies in the south of America

B.Canada has many different kinds of natural resources.

C.the weather in Canada is so cold the whole year as some people think

D.the Canadians government pays little attention to Inuit’s education.

 

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