题目内容
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 t he 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.
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
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
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
4.The new way of using cow wastes at Blue Farm might be best described as ______.
A. reducing B. saving
C. recycling D. changing
5.What is the main purpose for writing the passage?
A. To introduce a new way o f making electri city
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
Have you had a headache during a test? Have you ever been so worried about something that you have a headache or even can’t sleep at night? If so, then you know what stress is. Stress is what you feel when you are worried about something. This worry in your mind can make your body feel bad. You may feel angry, sad, scared(恐惧的), or afraid—all of which can give you a stomach ache or a headache.
However, there are different kinds of stress. Some kinds of stress are good and others are bad. Good stress might happen when you’re called to answer questions in class or when you have to give a speech. This kind of stress can help you to get things better done. For example, you may do a better job in your test if the stress pushes you to prepare better before the test.
On the other hand, bad stress can happen if the stress lasts too long. You may not feel well if your parents are fighting, if a family member is sick, if you’re having problems at school, or if anything else makes you unhappy every day. That kind of stress isn’t going to help you. And it can actually make you sick.
The best way to face the stress is to have a balanced life. Make sure you keep yourself in mind: Sleep, exercise, leisure(休闲), and food. If you get enough sleep and eat healthily, and if you exercise and leave time for fun, you’ll probably(可能) feel less stressed.
Title: Face the stress | ||
Meaning of stress | Stress is a 1. when you are worried about something. | |
Possible effect | You may feel uncomfortable in your 2. and body. | |
Different kinds | Good stress | It might happen when you have to 3. in public |
It will be more 4. for you to do the job in the test successfully. | ||
It makes you 5. better before doing the job | ||
Bad stress | It might happen if your stress 6. too long. | |
You may not feel well with the 7. of a family member, problems at school or anything else that worries you every day. | ||
It might stop you from getting your work well done. | ||
How to keep stress 8. | Have a balanced life. | |
Have enough sleep and have 9. food. | ||
Take exercise and have time to 10. yourself. | ||
从方框中选择单词，带人短文空格内，使短文意思正确。并使用其正确形式。每词限用一次。
old make important clean happy say die dish with be |
The Spring Festival is 1. festival for Chinese people all around the world. The celebration usually lasts for 15 days. There 2. a lot things to do. On the eve of the Spring Festival， family members get together and have big meals. Their favorite3. on this day is dumplings.
Days before the Spring Festival， families will clean their homes. People think4. sweeps away bad luck. It makes the house ready for good luck.
The color red is everywhere during the Spring Festival. People think red is a happy color and will bring them a bright future. People wear red， too. They decorate (装饰) their homes 5. pieces of red paper. Kids get a lot of “hong bao”. It is a red paper bag with money in it. Usually，6. people give younger ones hong bao. They think it brings good luck.
The Spring Festival is the time 7. everybody happy. So don’t say any bad words or do anything that will make other people 8. .For instance， you’d better not 9. any bad words like “10. ”. Don’t break anything. People think that it means your luck is running out. Also don’t borrow or lend money on these days. If you have borrowed money， return it before the Spring Festival.