Question

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 fertilizer

C．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 work	B．The job is done by machine
C．The cows lift the cow wastes	D．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．reducing

B．saving

C．recycling

D．changing

小題5: What is the main purpose for writing the passage?

A．To introduce a new way of making electricity	B．To explain how a new energy works better
C．To show a new rebuilding plan for a big farm	D．To explain the reasons for green house effect

Answer 1

小題1:A
小題1:B
小題1:D
小題1:C
小題1:A

【主旨大意】“Blue Farm” 農場用牛的糞便來發電。即循環利用資源，又節約能源。
小題1:A。細節理解題。根據第一段和第三段的最后一句The Audet family sells the extra electricity they can’t use themselves.，可判斷選A。
小題1:B。細節理解題。根據第四段的第一句話“How’s it works: A big machine moves back and forth cleaning the barn floor.”可判斷選B。
小題1:D。根據文章第四段后部分的描述，沼氣的加熱可以用來發電，可判斷選D。
小題1:C。主旨大意題。根據前三段和最后一段，可判斷選C。
小題1:A。本篇文章主要介紹了"Blue Farm"農場用牛的糞便來發電,既可以清潔環境,再生資源,又能節約能源。所以答案為選項A。