Dr.Jack Todd is very interested in clean water .__1._,so it's natural that he is to developer of a small and affordable system(系统）to clean waste water, His “Living Machine" can clean wastewater in your home or in your business.
__2._ The wastewater goes into a big plastic tank where bacteria(细菌）start to break down the waste.A few days later after it is dealt with, the water is brought into a greenhouse filled with plants and fish.With the help of sunlight, the plants and animals remove more chemicals from the water,making it cleaner,Then the water can be reused for washing or bathing _3.__ but the water is clean enough for watering the flowing, washing the dog, or even for bathing or swimming.
The advantage of this technology is that it is affordable and good for the environment. __4.__. It can help to use less fresh water, and it can help keep the water supply unpolluted.
| If enough homes and businesses use “Living Machines” People like to plant trees around their houses He is also interested in saving money It cannot be used for drinking or cooking The “Living Machine” is a system for cleaning wastewater |
八年级英语其他题中等难度题
Dr.Jack Todd is very interested in clean water .__1._,so it's natural that he is to developer of a small and affordable system(系统）to clean waste water, His “Living Machine" can clean wastewater in your home or in your business.
__2._ The wastewater goes into a big plastic tank where bacteria(细菌）start to break down the waste.A few days later after it is dealt with, the water is brought into a greenhouse filled with plants and fish.With the help of sunlight, the plants and animals remove more chemicals from the water,making it cleaner,Then the water can be reused for washing or bathing _3.__ but the water is clean enough for watering the flowing, washing the dog, or even for bathing or swimming.
The advantage of this technology is that it is affordable and good for the environment. __4.__. It can help to use less fresh water, and it can help keep the water supply unpolluted.
| If enough homes and businesses use “Living Machines” People like to plant trees around their houses He is also interested in saving money It cannot be used for drinking or cooking The “Living Machine” is a system for cleaning wastewater |
八年级英语其他题中等难度题查看答案及解析
— Where is Jack? It’s time to clean the classroom.
— I think he is ______ practicing singing in the music room. The art month is coming.
A. quickly B. probably C. easily
八年级英语单选题中等难度题查看答案及解析
Napoga is a 12—year---old girl in Ghana, Africa. It is hard for her family to get clean water . Every morning , she leaves home at half past five to get clean water for her family in a village far away . It takes her six hours to get enough clean water for daily cooking and drinking. She has no time to go to school or to play with her friends. Millions of people in the world are like Napoga . They can’t get enough clean water to keep healthy.
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。
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
2.On the earth, _______________.
A.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
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.
4.Which of the following wastes water?
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.
5.What’s the main idea of the passage?____________.
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.
八年级英语阅读理解中等难度题查看答案及解析
Napoga is a 12-year-old girl in Ghana(加纳)，Africa．It is hard for her family to get clean water．Every morning，she leaves home at half past five to get clean water for her family from a village far away．It takes her six hours to get enough clean water for daily(日常的)cooking and drinking．She has no time to go to school or to play with her friends．Millions of people in the world are like Napoga．They can’t get enough clean water to keep healthy．
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％ of the earth’s surface(表面)．But most of that is sea water．We can’t use it for many things．Fresh water covers only 1％ 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，34％ 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 450 liters(升)each month．
● Leaky taps(漏水的水龙头)waste a lot of water．Fix them right away！
● You can easily cut your 10-minute showers(沐浴)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’re wasting water！
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
2.On the earth，________．
A．sea water is widely used than fresh water
B．there is very little water for our living
C．there is 71％ of fresh water
D．we don’t need to worry about water
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 also to animals，plants and buildings
4.Which of the following wastes water？
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．
5.What’s the main idea of the passage？
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．
八年级英语阅读理解中等难度题查看答案及解析
Kate is very ___ in history because she thinks it is very _____.
A. interested, interested B. interested, interesting
C. interesting, interesting D. interesting, interested
八年级英语单项填空简单题查看答案及解析
Tom is in collecting stamps. He thinks it’s very .
A．interest, interesting
B．interested, interesting
C．interesting, interested
八年级英语单项填空中等难度题查看答案及解析
Don’t waste water. Water is very important and no one can live it.
A. without B. with C. for D. in
八年级英语单选题中等难度题查看答案及解析
Harry Porter is a very movie. All the children are in it.
A. interested, interesting
B. interesting, interested
C. interesting, interesting
八年级英语单项填空中等难度题查看答案及解析
This book is very _____ and I am ______ in it.
| A．interest; interest | B．interesting; interested |
| C．interested; interesting | D．interested; interested |
八年级英语单项填空中等难度题查看答案及解析
一 Is the film interesting?
一 I thought it would be. But , it’s very boring.
A.in all B.in the beginning C.in fact D.in the end
八年级英语单选题中等难度题查看答案及解析