New research suggests that growing trees and other plants near factories could reduce pollution by almost one- third.
More plant life may even cost less and be more effective (有效的) than technology designed to cut pollution, a new study found. Researchers collected data about air pollution and plant life in 48 cities. They studied public records from every city.
The researchers knew that trees and plants are taking in large amounts of harmful air. So they tried to find out whether new plants could reduce air pollution.
The study tried to show how this vegetation (植被) could reduce the pollution, including the production of energy from coal, oil and gas. The researchers found that growing plants, where possible, could cut air pollution by about 27 percent in the areas studied. They also found that in 75 percent of the areas, it would cost less to use plants and trees to reduce air pollution than to add new air cleaning technology.
"The fact is that traditionally, especially as engineers, we don't think about nature," Dr. Bakshi, said. "We just focus on putting technology into everything."
"To solve air pollution problems, people need to start learning from the nature and respecting it," Bakshi said. He added that nature-based methods could result in "win-win" solutions that save money and are better for the environment.
The study couldn't tell which kinds of trees or plants would be best at reducing air pollution. But Bakshi said they might make a difference in air quality, so further study is needed.
The researchers said that more trees and plants could help lower air pollution levels in both cities and rural areas. However, success rates (比率) would be different depending on how much land can be used and its air quality levels.
1.The researchers found that plants were ________ air cleaning technology.
A.better than B.worse than C.as cheap as D.as good as
2.Most engineers think ________ is more important in reducing air pollution.
A.nature B.cost C.location D.technology
3.What do "win-win" solutions refer to in Paragraph 6?
A.Building more factories to develop technology.
B.Reducing air pollution with less money.
C.Saving more money by developing technology.
D.Developing technology and reducing pollution.
4.What can we learn from the passage?
A.1/3 of the pollution can be reduced by technology.
B.The study has found out the most effective plants.
C.Plants improve the air quality in cities and the country.
D.Air quality levels mainly decide the success rates.
九年级英语阅读单选中等难度题
New research suggests that growing trees and other plants near factories could reduce pollution by almost one- third.
More plant life may even cost less and be more effective (有效的) than technology designed to cut pollution, a new study found. Researchers collected data about air pollution and plant life in 48 cities. They studied public records from every city.
The researchers knew that trees and plants are taking in large amounts of harmful air. So they tried to find out whether new plants could reduce air pollution.
The study tried to show how this vegetation (植被) could reduce the pollution, including the production of energy from coal, oil and gas. The researchers found that growing plants, where possible, could cut air pollution by about 27 percent in the areas studied. They also found that in 75 percent of the areas, it would cost less to use plants and trees to reduce air pollution than to add new air cleaning technology.
"The fact is that traditionally, especially as engineers, we don't think about nature," Dr. Bakshi, said. "We just focus on putting technology into everything."
"To solve air pollution problems, people need to start learning from the nature and respecting it," Bakshi said. He added that nature-based methods could result in "win-win" solutions that save money and are better for the environment.
The study couldn't tell which kinds of trees or plants would be best at reducing air pollution. But Bakshi said they might make a difference in air quality, so further study is needed.
The researchers said that more trees and plants could help lower air pollution levels in both cities and rural areas. However, success rates (比率) would be different depending on how much land can be used and its air quality levels.
1.The researchers found that plants were ________ air cleaning technology.
A.better than B.worse than C.as cheap as D.as good as
2.Most engineers think ________ is more important in reducing air pollution.
A.nature B.cost C.location D.technology
3.What do "win-win" solutions refer to in Paragraph 6?
A.Building more factories to develop technology.
B.Reducing air pollution with less money.
C.Saving more money by developing technology.
D.Developing technology and reducing pollution.
4.What can we learn from the passage?
A.1/3 of the pollution can be reduced by technology.
B.The study has found out the most effective plants.
C.Plants improve the air quality in cities and the country.
D.Air quality levels mainly decide the success rates.
九年级英语阅读单选中等难度题查看答案及解析
This new kind of tree can ______ very good apples.
A. grow B. plant C. produce D. get
九年级英语单选题困难题查看答案及解析
—Why do you want to settle down in Shenzhen?
—Because the city is beautiful. Trees and plants grow everywhere.
A.here B.here and there C.over there
九年级英语单选题中等难度题查看答案及解析
Why do plants grow in some places and not in others? Why does some land have so much growing on it, while other land has almost no plants growing on it at all? To grow, plants need several things. One is warmth. In very cold places almost nothing grows. That’s why dry deserts everywhere are almost not covered by trees or grass.
Plants must also have a place in which to put down their roots and grow. They find it difficult to grow on hard land. The town is built on hard land. The paints here have only the soil found between thecracksof the stones to grow in.
Another thing plants must have before they can grow is food.
What will happen if we try to make things grow on the sandy beach? A few plants, such as beach grass, will grow in sand, but most plants won’t. Even if the weather is warm enough and we water the plants each day, many of them will die because the sand on this beach has almost no food for plants.
1.
A. two B. three C. four D. five
2.
A. 缝隙 B. 表面 C. 夹层 D. 底部
3.
A. easy B. difficult
C. impossible D. important
4.
A. there isn’t enough sunlight
B. there is too much water
C. it is too crowed there
D. it has little food for plants
5.
A. science B. history C. travel D. math
九年级英语阅读理解中等难度题查看答案及解析
Why do plants grow in some places and not in others? Why does some land have so much growing on it, while other land has almost no plants growing on it at all?
To grow, plants need several things. One is warmth. In very cold places almost nothing grows. Plants also need water. In very dry parts of the Earth only a few unusual plants can grow. That's why dry deserts(沙漠) everywhere are almost not covered by trees or grass.
Plants must also have a place in which to put down their roots and grow. They find it difficult to grow on hard land. The town is built on hard land. The plants here have only the soil(土壤) found between the cracks of the stones to grow in.
Another thing plants must have before they can grow is food.
What will happen if we try to make things grow on the sandy beach? A few plants, such as beach grass, will grow in sand, but most plants won't. Even if the weather is warm enough and we water the plants each day, many of them will die because the sand on this beach has almost no plant food.
1.The passage can most probably be found in .
A. a science book B. a newspaper
C. a magazine D. a report
2.Plants need things to grow well according to the passage.
A. two B. three C. four D. five
3.The reason why most plants can’t grow on the sandy beach is that .
A. there isn’t enough sunlight
B. there is too much water
C. it is too crowded there
D. it has little food for plants
4.Which of the following is true?
A. Beach grass can hardly grow in sand.
B. Plants need food to help them grow.
C. Plants want a place where their flowers can come out.
D. Dry deserts everywhere are almost covered by trees or grass.
九年级英语阅读理解中等难度题查看答案及解析
Snack time is a part of the day for children of all ages. But new research suggests that kids snacking in big groups could be at risk for obesity.
Scientists from American University looked at the eating behavior of 54 kids between the ages of 2 and 6. At snack time, the scientist watched the amount of food each child ate while they were in groups of either three or nine. According to the study, the more children there are in a group, the more likely they are to eat more. Those in the larger group ate nearly 30 percent more than those in the smaller group, and they actually ate faster.
Since this is the first such study in children, scientists are quick to point out the importance of encouraging healthy habits in kids as early as possible.
“If you know kids eat more in large groups, it seems perfect to use this information to keep snack groups small or use small tables,” says Dr. Jana Klauer, an expert in New York.
Smaller groups would allow for a quiet and more relaxing environment-a perfect chance to teach children about food, manners and how to know when they feel full. “This would have an effect on kids' eating,” adds Klauer. “They would slow down and eat less.”
1.How many times have the scientists done such study according to the passage?
A.Once | B.Twice | C.Three times | D.Many times |
2.The underlined word means”________”in Chinese.
A.健康 | B.肥胖 | C.瘦弱 | D.服从 |
3.Why do children in smaller groups lose weight?
A.Because children in smaller groups eat faster. |
B.Because children in smaller groups don't like eating. |
C.Because children in smaller groups don't know about food. |
D.Because children in smaller groups eat slowly and eat less. |
4.The best title of the passage is “ ”
A.Snack Time | B.Different Groups |
C.Eating More | D.Food for Kids |
九年级英语阅读理解中等难度题查看答案及解析
Researchers say that nearly two thirds of children don't get enough sleep, and this can make them nervous and slower at school. So how long should young people sleep each night? The answer is between 8 and 10 hours. If you don't get enough sleep at night, you'll have less energy the next day.
A report shows that children sleep less because they have TVs and computers in their rooms, and busy parents don't read to their younger children at night any more. The traditional "bedtime story" helps children to relax and fall asleep peacefully. Children with TVs and computers in their bedrooms were more likely to sleep badly, and to get less than eight hours' sleep. Even losing one hour's sleep a night can mean that children do worse than usual at school.
British scientists think that your brain keeps working while you're asleep. To show that they were right, they have done an experiment. They gave two groups of people a problem to work out. One group went to sleep, and the other group stayed awake. You want to know the result? The people who slept worked out the answer more quickly. Researchers explained that their brains were trying to find the answer while the people were asleep. So, make sure you get enough sleep tonight, 'and you'll be at your best tomorrow !
1.How long should the young sleep every night?
________________________________________
2.What does the writer think of the traditional "bedtime story"?
________________________________________
3.Are the children with computers in their bedrooms more likely to sleep better?
________________________________________
4.In the last paragraph, what does the experiment show us?
________________________________________
5.What does the passage mainly try to tell us?
________________________________________
九年级英语任务型阅读困难题查看答案及解析
—It’s always foggy these days in our city. That’s really terrible!
— Yes, and I hope to plant trees. ______trees, ______ air pollution.
A. The more; the fewer B. The less; the more
C. The less; the fewer D. The more; the less
九年级英语单项填空中等难度题查看答案及解析
When we talk of plants, most of us will think of things that grow from the ground and have green leaves, but there are plants that do not look or act like other plants. Some of these belong to a special class of plants called fungi.
Fungi may appear almost everywhere.68They usually grow in wet places where they can get food and water easily. Because fungi do not have green leaves to make their own food, fungi must take their food from animals, other plants or water. Some fungi live on dead or rotting wood, while others grow on living trees or in dirt or moss(苔藓). Mushrooms (蘑菇) are the best-known fungi.
69There are many kinds of mushrooms appearing in all shapes and sizes. For example, cauliflower mushrooms are found in forests from July to October. They can grow to be as heavy as fifty pounds! They grow at the foot of trees. Squirrel’s bread(松茸)
is another kind of wild mushroom. Its appearance and use can explain its name. These fungi look like small golden cakes. Squirrels can easily eat them or carry them off to their hole to eat later.
The mushrooms in food stores are carefully grown by people and they are safe to eat. People are warned never to touch or taste wild mushrooms, because some of them are deadly. Even less dangerous ones can still make a person very sick.
根据短文内容回答下列问题:
1.From what can fungi take food?
____________________________________________________________________________
2.What is squirrel’s bread?
____________________________________________________________________________
3.将划线句子译成汉语。
____________________________________________________________________________
4.将划线句子译成汉语。
____________________________________________________________________________
5.给短文拟一个适当的标题。
___________________________________________________________________________
九年级英语任务型阅读困难题查看答案及解析
When we talk of plants, most of us will think of things that grow from the ground and have green leaves.1. Some of these belong to a special class of plants called fungi ( 真 菌 ).
2. They usually grow in wet places where they can get food and water easily. Because fungi do not have green leaves to make their own food. 3. However, fungi must take their food from animals, other plants or waste matter. Some fungi live on dead or rotting(腐烂的)wood, while others grow on living trees or in dirt.
Mushrooms(蘑菇)are the best-known fungi.4.For example, cauliflower(菜花) mushrooms are found in forests from July to October.They can grow to be as heavy as fifty pounds! They grow at the foot of trees. Squirrel’s(松鼠)bread is another kind of wild mushroom.
5.These fungi look like small golden cakes, grow on short and fat trees. Squirrels can easily eat them or carry them off to their hole to eat later.
The mushrooms found in food stores are carefully grown by people who know they are safe to eat. People are warned never to touch or taste wild mushrooms because some of them are deadly. Even less dangerous ones can still make a person very sick.
A.Its appearance and use can explain its name.
B.Fungi may appear almost everywhere.
C.But there are plants that do not look or act like other plants.
D.Green plants use their leaves to make their own food.
E.There are many kinds of mushrooms appearing in all shapes and sizes.
九年级英语补全短文5选5中等难度题查看答案及解析