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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 (糞肥), 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 (化糞池) because what happens there is just like what happens inside a cow: Bacteria(細菌) get to work and continue to digest the manure.
Methane gas (甲烷、沼氣)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 (發(fā)電機).
At Blue Farm, the generators make enough electricity to power 400 homes. The Audet family sells the extra electricity they can’t use themselves.
【小題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
【小題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
【小題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
【小題4】The new way of using cow wastes at Blue Farm might be best described as ______.
A.reducingB.savingC.recyclingD.changing
【小題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


【小題1】A
【小題1】B
【小題1】D
【小題1】C
【小題1】A

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Scientists are very interested in the Universe,and they always want to know more about it. Years ago they knew many things about the moon. They knew how big it is and how far away it is from the earth. But they wanted to know more about it. They thought the best way was to send men to the moon. The moon is about 384,000 kilometers away from the earth. A plane cannot fly to the moon because the air reaches only 240 kilometers away from the earth. But something can fly even when there is no air. That is a rocket(火箭)
How does a rocket fly? There is gas(氣體) in the rocket. When the gas is made very hot inside the rocket, it will rush out of the end of the rocket, so it can make the rocket fly up into the sky. Rockets can fly out into space. Rockets with men in them have been to the moon. Several rockets without men in them have flown to another planet(行星) much farther away than the moon. One day, rockets may be able to go to any place in space.
【小題1】Scientists knew ____________ the moon is.
A: how far    B: how big    C: how old    D: both A and B
【小題2】The earth is about 384,000 kilometers away from the _____.
A: space    B: universe    C: sun   D: moon
【小題3】A plane cannot fly to the moon because ___________
A: there is no air above 240 kilometers away from the earth.
B: there is no gas in the plane
C: the plane is not strong enough
D: the plane can not fly a long way
【小題4】The hot gas in the rocket is used for___________
A: keeping the air in the rocket fresh(新鮮的)
B: Keeping the men in the rocket warm
C: making the rocket fly up.
D: cooking food for the men
【小題5】What is the writer’s attitude(態(tài)度) to the universe’s future.
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C: Confident(有信心的)      D: Sad

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科目:初中英語 來源:2013屆北京市門頭溝區(qū)中考二模英語卷(帶解析) 題型:完型填空

Have you ever heard someone use the phrase” once in a blue moon”? People use this expression to describe something that they do not do very often. For example, someone might say that he tries to avoid eating sweets because they are unhealthy, but will eat chocolate” once in a blue moon”. Or someone who does not usually like to go to the beach might say “I visit the shore once in a blue moon.”While many people use this phrase, not everyone knows the meaning behind it.
The first thing to know is that the moon itself is never really blue. This is just an expression. In fact, the phrase” blue moon” has to do with the shape of the moon, not the color.
As the moon travels around the earth, it appears to change shape. We associate certain names with certain shapes of the moon. For example, when we can see a small part of the moon it is called a crescent moon. A crescent is a shape that looks like the tip of a fingernail when we cannot see the moon at all; it is called a new moon.
When we can see the whole moon is called a full moon. Usually, there is only one full moon every month. Sometimes, however there will be two full moons in one month. When this happens, the second full moon is called a blue moon”.
Over the next 20 years, there will only be 15 blue moons. As you can see, a blue moon is a very rare (稀有的)event. This fact has led people to use the expression” once in a blue moon” to describe other very rare events in their lives.
【小題1】Which of the following would be a good example of using the phrase” once in a blue moon”.

A.Simon often tells jokes. Simon tells jokes once in a blue moon.
B.Tom rarely remembers to do exercise. Tom does exercise once in a blue moon.
C.Mary likes to go shopping every weekend. Mary goes shopping once in a blue moon.
D.Cindy hates to stay up, but she stays up every day. Cindy stays up once in a blue moon.
【小題2】When does a blue moon happen in nature?
A.When the moon has a blue moon.
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C.When there are two full moons in one month.
D.When we can only see a small part of the color.
【小題3】How often will a blue moon happen over the next twenty years?
A.Once a year.B.Less than once a year.
C.More than once a year.D.At least twice a year.
【小題4】What does the underlined part “This fact” in the last paragraph refer to?
A.A blue moon is a very rare event.
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D.A blue moon has to do with the shape of the moon.

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These simple ways can increase(增加)your popularity and win you more friends,so why not try them?
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A.be more worried and tiredB.feel more confident
C.be paid less attention toD.feel less liked
【小題2】When having a conversation with people,you’d better NOT _______.
A.be open up to themB.fix your eyes on them
C.a(chǎn)sk questions about themD.look at them
【小題3】Which of the following is true according to the passage?
A.Showing continuous care for others is highly valued.
B.Smiling at others can often be misunderstood.
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D.You don’t have to continue helping others if you don’t want to.
【小題4】Which is the best title for this passage?
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For years I wanted a garden. I’d spend hours thinking of different things I could plant that would look nice together.
But then we had Matthew, and Marvin, and the twins Alisa and Alan, and then Helen. I was too busy raising them to grow a garden.
Money was not enough. Neither was time. Often when my children were little,one of them would want something that cost too much, and I’d have to say, “Do you see a money tree outside? Money doesn't grow on trees, you know.”
Finally, all the children got through high school and college and were off on their own. I started thinking again about a garden.
Then, one spring morning, on Mother’s Day, I was working in my kitchen. Suddenly, I looked out of the window and there was a new tree, planted right in my yard. There were things blowing around on it. Then I put my glasses on—and I couldn’t believe what I saw.
There was a money tree in my yard!
I went outside to look. It was true! There were dollar bills*, one hundred of them, hanging all over that tree. There was also a note among them, “Thank you for your time, Mom. We love you!”
Later, my children bought me tools, ornaments, a sunflower stepping stone and gardening books. A new page started in my life.
That was three years ago. My garden’s now very pretty, just like I wanted. When I go out and take care of my flowers, I don’t seem to miss my children as much as I once did. It feels like they’re right there with me. Now every year when winter comes, I look out of my window and think of the flowers I’ll see next spring in my little garden. I think about what my children did for me, and I get tears in my eyes—every time.
I’m still not sure that money grows on trees. But I know love does!
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A.ThreeB.FourC.FiveD.Six
【小題2】 What did the mother mean when she said “Money doesn’t grow on trees”?
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B.She had to save money so that she could have a garden.
C.It wasn’t easy for her to make money to raise all the children.
D.They didn’t have much money because the mother lost her job.
【小題3】 The “money tree” appeared in the writer’s yard _________.
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B.one spring morning when the children were little
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D.on a Mother’s Day after the children left her
【小題4】 The children planted a money tree in their mother’s yard because _________.
A.their mother needed money badly
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American people like to say ‘Thank you ’or say something kind when others help them.People of many countries do so,too.It is a very good habit.
You should say‘Thank you’when someone passes you the salt on the table,when someone walking ahead of you keeps the door open for you and when someone says you always do your work well or you have a nice thing or your city is very beautiful.‘Thank you’is used not only between friends,but also between parents and children,brothers and sisters.
‘Excuse me’is another short sentence they use.When you hear someone says‘Excuse me’behind you,you know that someone wants to walk past you without touching you.It’s not polite to break(打斷)others when they are talking.If you want to speak to one of them。say‘Excuse me’first,and then begin talking.You should also do so when you begin to cough or make any noise before others.
Let’s learn to say‘Thank you’and‘Excuse me’.
【小題1】You should say‘Thank you’when_______.

A.you say something kind to others
B.you help others
C.someone helps you
D.you need others to help you
【小題2】From the passage we know‘Thank you’is_______.
A.used in the world
B.used more often than ‘Excuse me’
C.used only by Americans
D.used only between friends
【小題3】You should say‘Excuse me’if you want to________.
A.coughB.make some noise
C.go firstD.A,B and C
【小題4】When you are going to ask someone to tell you the way,you should say‘_______’.
A.Thank youB.That’s very kind of you
C.Excuse meD.I’m sorry
【小題5】This passage mainly tells us the way_________.
A.to be happyB.to be polite
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