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Earth Day is April 22. But on all other days, we must also remember it. The water we use is the most important natural resource(自然资源)on the earth.
Water covers 70 perent of the earth’s surface (表面). But most of that is sea water. We can’t use it for very many things. Fresh water covers only one percent of the earth’s surface.
You probably feel lucky that your life isn’t as hard as Napoga’s . But that doesn’t mean you don’t have to worry about water. We all face serious water problems. One of them is water pollution. All kinds of things from cars, factories, farms and homes make our rivers , lakes , and oceans dirty. Polluted water is very bad for people to drink. And dirty water is bad for fish , too. Now, thirty-four percent of all kinds of fish are dying out.
How do cars and factories make our water dirty? First, they pollute the air. Then , when it rains, the rain water comes down and makes our drinking water dirty. Dirty rain, called acid rain(酸雨), is also bad for plants ,animals and buildings.
Scientists say that in 30 years, more than half of the people in the world won’t have enough clean water. We have to learn how to save more water for ourselves and our children. Here is some advice for saving water:
● Turn off the water while you brush your teeth. You can save as much as 450liters(升)each month.
● Leaky taps （漏水的龙头）waste a lot of water. Fix them right away.
●You can easily cut your 10—minute showers in half---and you’ll be just as clean.
●When you wash dishes, don’t let the water run.
●Only wash clothes when you have a lot to wash. If your washing machine isn’t full , you are wasting water!
根据材料内容，选择最佳答案，并将其标号填入题前括号内。
小题1:Every morning Napoga went to get clean water _________.
| A．before she went to school |
| B．after she finished school |
| C．without going to school |
| D．after she played with her friends |
sea water is more widely used than fresh water
B.there is very little water for our living
C.there is 71 percent of fresh water
D.we don’t need to worry about water
小题3:Acid rain____________________________.
| A．is only bad for living things. |
| B．can be produced in factories |
| C．doesn’t do harm to people , but it’s bad for plants, animals and buildings. |
| D．doesn’t just do harm to human beings but to animals, plants and buildings. |
| A．We need ten minutes if we want a clean shower. |
| B．We should put in enough clothes when we wash them in washing machines. |
| C．You can keep yourself clean by having a shower for five minutes. |
| D．Don’t let the water run when we brush our teeth and wash dishes. |
| A．Something must be done to prevent water from being polluted. |
| B．Clean water means much to human beings and living things around us. |
| C．It’s time to take care of the water we use. |
| D．Water is the most important natural resource on the earth. |
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Tracy sat at the kitchen table daydreaming. She was thinking about the used bike she planned to buy. She was making a list of things she wanted to do to fix up the bike. On her list, Tracy had written new seat, paint, and bell. Then she thought, “I want to make sure drivers see me on my bike. I’ll add reflectors （反光镜）to my list.”
Tracy’s dad walked into the kitchen. “What are you doing?” he asked.
“Oh, I’m just thinking about the bike I want to buy”, Tracy said. “I had hoped to earn enough on my paper route the first week to buy it, but I only made fifteen dollars. I hope the bike is still there after I get paid next week.”
“Well, if you would like to earn the money tomorrow, you can help me,” Tracy’s dad said.
“Doing what?” Tracy asked eagerly.
“I’m washing windows in the morning,” her dad said. “I could use five dollars’ worth of help.”
Even though it was a Saturday, Tracy got up quite early. She washed the inside of all of the windows. By twelve o’clock, she finished and had the money in her hand. Just as she was ready to leave, her mom called to her, “Tracy, did you make your bed?” Tracy rushed to her bedroom and made her bed. Finally, she headed for the door. She raced down the street to where the bike was for sale. Luckily, It was still there. The owner noticed Tracy looking at the bike. “Would you like to buy it?” asked the owner.
“I sure would! I have twenty dollars,” Tracy answered, pulling the money out of her pocket.
Within minutes Tracy rode away wearing a huge smile. She circled the block several times. She wanted her friends to see her on her new bike.
1. Tracy was ___________ when his father came into the kitchen.
A. sleeping in bed B. making a list
C. buying a bike D. making bed
2. Tracy washed the windows in order to ___________.
A. welcome her friends B. make her mum happy
C. see the street clearly D. earn some money
3. Tracy felt worried because ___________.
A. she was afraid the bike was sold
B. she was not good at fixing up her bike
C. she was afraid her mum wouldn’t let her out
D. she couldn’t get up early enough to buy the bike
4. We can know from the passage that ___________.
A. Tracy’s mother didn’t work hard
B. Tracy’s father didn’t love her
C. Tracy’s family was very poor
D. Tracy had a very good father
查看习题详情和答案>>She was making a list of things she wanted to do to fix up the bike. On her list, Tracy had written new
seat, paint, and bell. Then she thought, "I want to make sure drivers see me on my bike. I'll add reflectors
(反光镜)
to my list."
Tracy's dad walked into the kitchen. "What are you doing?" he asked.
"Oh, I'm just thinking about the bike I want to buy", Tracy said. "I had hoped to earn enough on my
paper route the first week to buy it, but I only made fifteen dollars. I hope the bike is still there after I get
paid next week."
"Well, if you would like to earn the money tomorrow, you can help me," Tracy's dad said.
"Doing what?" Tracy asked eagerly.
"I'm washing windows in the morning," her dad said. "I could use five dollars' worth of help."
Even though it was a Saturday, Tracy got up quite early. She washed the inside of all of the windows.
By twelve o'clock, she finished and had the money in her hand. Just as she was ready to leave, her mom
called to her, "Tracy, did you make your bed?" Tracy rushed to her bedroom and made her bed. Finally, she
headed for the door. She raced down the street to where the bike was for sale. Luckily, It was still there. The
owner noticed Tracy looking at the bike. "Would you like to buy it?" asked the owner.
"I sure would! I have twenty dollars," Tracy answered, pulling the money out of her pocket.
Within minutes Tracy rode away wearing a huge smile. She circled the block several times. She wanted
her friends to see her on her new bike.
B. making a list
C. buying a bike
D. making bed
B. make her mum happy
C. see the street clearly
D. earn some money
B. she was not good at fixing up her bike
C. she was afraid her mum wouldn't let her out
D. she couldn't get up early enough to buy the bike
B. Tracy's father didn't love her
C. Tracy's family was very poor
D. Tracy had a very good father