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Today there are 6.4 billion people on the earth. By the year 2050 there may be 12.5 billion . There are a lot of people to feed. We need more and more food.
One way to produce more food is growing stronger plants. For thousands of years, farmers have made plants better. Every season, they pick the best plants for the next season. It works very slowly. Since 1983, scientists have been able to change plants more quickly by changing their genetic（遗传的） material. Foods from plants grown in this way are called genetically modified(改变的) foods, or GM foods.
By changing the genetic material of a plant, it is possible to make new plants. They make plants which are strong against plant diseases. They can also help in our diseases; a kind of rice is being prepared , for example , which stops people becoming blind.
Rich countries produce GM foods because they are easy to grow and bring in more money. Poor countries are interested in them because they help produce more food.
GM plants are not natural. No one knows how good or bad they are,. Making GM foods is only one way of feeding people in 2050. There are strong feelings against them, because they are unnatural. They may feed people , then hurt them or their children later. But both rich and poor countries are interested in their use, and they are not going to go away. In 2050, we may think differently about them.
1.GM foods are made by ________
A. farmers B. workers C. scientists D plants
2.What are the good things about GM foods ?
A. They make plants strong against diseases. B. They are unnatural.
C. They can help in human diseases. D Both A and C.
3.GM foods ________.
A. are a quick way to produce food B. grow in the wild
C. are safe D are grown only in rich countries
4.Why do some people not like GM foods?
A. They are not useful. B. They are not helpful.
C. They are not natural. D They are not cheap.
5.From the passage we know that________.
A. GM foods will disappear one day in the future
B. GM foods will not disappear in the future
C. People will not be interested in GM foods.
D. People will have to stop using GM foods
九年级英语阅读理解简单题查看答案及解析
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Today there are 6.4 billion people on the earth. By the year 2050, there may be 12.5 billion. There are a lot of people to feed. We need more and more food.
One way to produce more food is growing stronger plants. For thousands of years, farmers have made plants better. Every season, they pick the best plants for the next season. But it works very slowly. Since 1983, scientists have been able to change plants more quickly by changing their genetic(遗传的) material. Foods from plants grown in this way are called genetically modified(改变的) foods, or GM foods.
By changing the genetic material of a plant, it is possible to make new plants. They make plants which are strong against plant diseases. They can also help prevent human diseases; a kind of rice is being prepared, for example, which stops people becoming blind.
Rich countries produce GM foods because they are easy to grow and bring in more money. Poor countries are interested in them because they help produce more food.
GM plants are not natural. No one knows how good or bad they are. There are strong feelings against them, because they are unnatural. They may feed people, then hurt them or their children later. But both rich and poor countries are interested in their use, and they are not going to go away. In 2050, we may think differently about them.
1.GM foods are made by________．
A. farmers B. workers
C. scientists D. plants
2.What are the good things about GM foods?
A. They make plants strong against diseases.
B. They are unnatural.
C. They can help prevent human diseases.
D. Both A and C.
3.GM foods________．
A. are a quick way to produce food
B. are grown in the wild
C. ．are safe
D. are grown only in rich countries
4.Why do some people not like GM foods?
A. They are not useful. B. They are not helpful.
C. They are not natural. D. They are not cheap.
5.From the passage we know that ________．
A. GM foods will disappear one day in the future
B. GM foods will not disappear in the future
C. people will not be interested in GM foods
D. people will have to stop using GM foods
九年级英语阅读单选困难题查看答案及解析
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Today there are 6.4 billion people on the earth. By the year 2050 there may be 12.5 billion . There are a lot of people to feed. We need more and more food.
One way to produce more food is growing stronger plants. For thousands of years, farmers have made plants better. Every season, they pick the best plants for the next season. It works very slowly. Since 1983, scientists have been able to change plants more quickly by changing their genetic（遗传的） material. Foods from plants grown in this way are called genetically modified(改变的) foods, or GM foods
By changing the genetic material of a plant, it is possible to make new plants. They make plants which are strong against plant diseases. They can also help in our diseases; a kind of rice is being prepared , for example , which stops people becoming blind.
Rich countries produce GM foods because they are easy to grow and bring in more money. Poor countries are interested in them because they help produce more food.
GM plants are not natural. No one knows how good or bad they are,. Making GM foods is only one way of feeding people in 2050. There are strong feelings against them, because they are unnatural. They may feed people , then hurt them or their children later. But both rich and poor countries are interested in their use, and they are not going to go away. In 2050, we may think differently about them.
1.GM foods are made by ______.
A. farmers B. workers C. scientists D. plants
2.What are the good things about GM foods ?
A. They make plants strong against diseases.
B. They are unnatural.
C. They can help in human diseases.
D. Both A and C.
3.GM foods ______.
A. are a quick way to produce food
B. grow in the wild
C. are safe
D. are grown only in rich countries
4.Why do some people not like GM foods?
A. They are not useful. B. They are not helpful.
C. They are not natural. D. They are not cheap.
5.From the passage we know that ______.
A. GM foods will disappear one day in the future
B. GM foods will not disappear in the future
C. People will not be interested in GM foods
D. People will have to stop using GM foods
九年级英语阅读理解中等难度题查看答案及解析
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Today there are 6.4 billion people on the earth. By the year 2050 there may be 12.5 billion. There are many people to feed. We need more and more food.
One way to produce more food is growing stronger plants. For thousands of years, farmers have made plants better. Every season, they pick the best plants for the next season. It works very slowly. Since 1983, scientists have been able to change plants more quickly by changing their genetic (遗传的) material. Foods from plants grown in this way are called genetically modified (转基因的) foods, or GM foods.
By changing the genetic material of a plant, it is possible to make new plants. Scientists make plants which are strong against plant diseases. They can also help in our diseases; a kind of rice will be grown, for example, which stops people becoming blind.
Rich countries produce GM foods because they are easy to grow and bring in more money. Poor countries are interested in them because they help produce more food.
GM plants are not natural. No one knows how good or bad they are. Making GM foods is only one way of feeding people in 2050. There are strong feelings against them because they are unnatural. They may feed people, then hurt them or their children later. But both rich and poor countries are interested in their uses, and they are not going to go away. In 2050, we may think differently about them.
1.There may be billion people by the year 2050 on the earth.
A.6.4 B.12.5 C.18.5 D.20.5
2.How have scientists been able to change plants more quickly?
A.By making the best plants. B.By asking the farmers to grow plants.
C.By changing planting environment. D.By changing their genetic material.
3.Why do rich countries produce GM foods?
A.Because they are easy to grow and bring in more money.
B.Because they are easy to grow and very cheap.
C.Because they help produce more food.
D.Because they are the best plants.
4.Which of the following is NOT true according to the passage?
A.GM plants are not natural.
B.GM plants are strong against plant diseases.
C.Everyone knows how good or bad GM plants are.
D.GM foods may hurt people or their children later.
5.What can we learn from the passage?
A.GM foods will go away one day in the future.
B.GM foods will not go away in the future.
C.People will not be interested in GM foods.
D.People will have to stop eating GM foods.
九年级英语阅读单选困难题查看答案及解析
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Today there are 6.4 billion people on the earth. By the year 2050 there may be 12.5 billion. There are many people to feed. We need more and more food.
One way to produce more food is growing stronger plants. For thousands of years, farmers have made plants better. Every season, they pick the best plants for the next season. It works very slowly. Since 1983, scientists have been able to change plants more quickly by changing their genetic (遗传的) material. Foods from plants grown in this way are called genetically modified (转基因的) foods, or GM foods.
By changing the genetic material of a plant, it is possible to make new plants. Scientists make plants which are strong against plant diseases. They can also help in our diseases; a kind of rice will be grown, for example, which stops people becoming blind.
Rich countries produce GM foods because they are easy to grow and bring in more money. Poor countries are interested in them because they help produce more food.
GM plants are not natural. No one knows how good or bad they are. Making GM foods is only one way of feeding people in 2050. There are strong feelings against them because they are unnatural. They may feed people, then hurt them or their children later. But both rich and poor countries are interested in their uses, and they are not going to go away. In 2050, we may think differently about them.
1.There may be billion people by the year 2050 on the earth.
A. 6.4 B. 12.5 C. 18.5 D. 20.5
2.How have scientists been able to change plants more quickly?
A. By making the best plants. B. By asking the farmers to grow plants.
C. By changing planting environment. D. By changing their genetic material.
3.Why do rich countries produce GM foods?
A. Because they are easy to grow and bring in more money.
B. Because they are easy to grow and very cheap.
C. Because they help produce more food.
D. Because they are the best plants.
4.Which of the following is NOT true according to the passage?
A. GM plants are not natural.
B. GM plants are strong against plant diseases.
C. Everyone knows how good or bad GM plants are.
D. GM foods may hurt people or their children later.
5.What can we learn from the passage?
A. GM foods will go away one day in the future.
B. GM foods will not go away in the future.
C. People will not be interested in GM foods.
D. People will have to stop eating GM foods.
九年级英语阅读单选困难题查看答案及解析
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Today there are 6 billion people on the earth. By the year 2050 there may be 12.5 billion. There will be a lot of people to feed. We need more food.
One way to produce more food is by growing stronger plants. For thousands of years, farmers have made plants better. Every season, they pick the best plants for the next season. It works very slowly. Since 1983, scientists have been able to change plants more quickly by changing their genetic material(遗传物质). Foods from plants grown in this way are called genetically modified foods(转基因食品), or GM foods.
By changing the genetic material of a plant, it is possible to make new plants. They make plants which are strong against plant diseases. They can also help in our diseases: a kind of rice is being prepared, for example, which stops people from becoming blind.
Rich countries produce GM foods because they are easy to grow and bring in more money. Poor countries are interested in them because they help produce more food.
GM plants are not natural. No one knows how good or bad they are. Making GM foods is only one way of feeding people in 2050. There are strong feelings against them, because they are unnatural. They may feed people, then hurt them or their children later. But, both rich and poor countries are very interested in their use, and they are not going to go away. In 2050 we may think differently about them.
1.GM foods ________.
A．are a quick way to produce food
B．grow in the wild
C．are safe
D．are grown only in rich countries
2.Why do some people not like GM foods?
A．They are not useful.
B．They are not helpful.
C．They are not natural.
D．They are not cheap.
3.From the reading we know that ________.
A．GM foods will disappear one day in the future
B．GM foods will not disappear in the future
C．people will not be interested in GM foods
D．people will have to stop using GM foods
九年级英语阅读理解中等难度题查看答案及解析
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Today there are 7.4 billion people on the earth. By the year 2050 there may be 12.5 billion. There are many people to feed. We need more and more food.
One way to produce more food is growing stronger plants. For thousands of years, farmers have made plants better. Every season, they pick the best plants for the next season. It works very slowly. Since 1983, scientists have been able to change plants more quickly by changing their genetic (遗传的) material. Foods from plants grown in this way are called genetically modified foods, or GM foods.
By changing the genetic material of a plant, it is possible to make new plants. Scientists make plants which are strong against plant diseases. They can also help in our diseases; a kind of rice will be grown, for example, which stops people becoming blind.
Rich countries produce GM foods because they are easy to grow and bring in more money. Poor countries are interested in them because they help produce more food.
GM plants are not natural. No one knows how good or bad they are. Making GM foods is only one way of feeding people in 2050. There are strong feelings against them because they are unnatural. They may feed people, then hurt them or their children later. But both rich and poor countries are interested in their uses, and they are not going to go away. In 2050, we may think differently about them.
1.---How many people are there on the earth now?---_________ billion.
A. 7.4 B. 12.5 C. 18.5 D. 20.5
2.How have scientists been able to change plants more quickly?
A. By making the best plants. B. By asking the farmers to grow plants.
C. By changing their genetic material. D. By changing planting environment.
3.Why do poor countries produce GM foods?
A. Because they are easy to grow and bring in more money.
B. Because they are easy to grow and very cheap.
C. Because they help produce more food.
D. Because they are the best plants.
4.What’s the meaning of GM in the second paragraph?
A. 传统 B. 非转基因 C. 自然 D. 转基因
5.Which of the following is NOT true according to the passage?
A. GM plants are not natural.
B. GM plants are strong against plant diseases.
C. Everyone knows how good or bad GM plants are.
D. GM foods may hurt people or their children later.
九年级英语阅读单选困难题查看答案及解析
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Today there are 7 billion people on the earth．By the year 2050 there may be 9.0 billion．We will have a lot more people to feed．We need more food．
One way to produce more food is by growing stronger plants．For thousands of years，farmers have made plants better．Every season，they pick the best plants for the next season．It works very slowly．Since1983 scientists have been able to change plants more quickly by changing their genetic(遗传的) material. Foods from plants grown in this way are called genetically modified foods(转基因食品)，or GM foods.
By changing the genetic material of a plant，it is possible to make new plants. They make plants which are strong against plant diseases. They can also help in our diseases：a kind of rice is being prepared，for example，which stops people from becoming blind．Rich countries produce GM foods because they are easy to grow and they bring in more money．Poor countries are interested in them because they help produce more food．
GM plants are not natural．No one knows how good or bad they are．Making GM foods is only one way of feeding people in 2050．But there are strong feelings against them，because they are unnatural. They may feed people，then hurt them or their children later．But both rich and poor countries are very interested in their use，and they are not going to die．In 2050 we may think differently about them．
1.Who invented the GM plants?
A．Farmers． B．Workers
C．Scientists． D．Plants．
2.People plant the GM plants because .
A. they make plants strong against diseases
B．they are unnatural
C．they can help in human diseases
D．both A and C
3.What do you think of the GM plant?
A．It grows too slowly．
B．It is bad for people’s body．
C．It can greatly help the poor countries．
D．It produces less food than the general plant.
4.Why do some people dislike the GM plants?
A．The GM foods may harm the human body．
B．The GM foods have terrible taste．
C．The GM foods are bad for the adults．
D．The GM foods are not cheap．
5.From the passage we can find out__________
A．the GM plants can produce more food
B．scientists want to make more money
C．scientists find the GM plants by accident
D．scientists work on the subject for fun
九年级英语阅读理解中等难度题查看答案及解析
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Tornadoes(龙卷风) are one of the worst weather events on earth. Each year, tornadoes kill many people. The storms often carry homes, cars and trees from one place to another. And they can also destroy anything when they pass by.
A tornado comes from a thunderstorm(雷雨) in the sky down to the ground. It is big at the top and small at the bottom.
A tornado appears when winds in different directions meet in the cloud and begin to turn in circles. People can see tornadoes almost everywhere in the world. But most happen from late winter to middle summer. There is a second high season in November. During spring, warm air moves north and mixes with the cold air left from winter. In November, the opposite happens. Cold air moves south and mixes with the warm air left from summer.
Tornadoes always come suddenly. Weather scientists have done something to predict(预测) tornadoes. But the storms often move too fast for people to protect themselves. Last year, tornadoes killed more than one hundred people in United States.
Scientists say the best place to be in is a small room, without windows, in the middle the lowest part of a building when tornadoes come.
根据短文内容，选择最佳答案。
1.According to the passage, we know the shape of the tornadoes may be like ______.
2.In the United States, most tornadoes happen _____.
A. from late summer to middle summer
B. from late autumn to middle winter
C. from late autumn to middle spring
D. from late winter to middle summer
3.According to Paragraph 4, tornadoes appear when ______.
A. warm air and cold air mix
B. cold air and cold air mix
C. warm air and warm air mix
D. warm water and cold water mix
4.What’s the Chinese meaning of the underlined word “destroy”?
A. 保护 B.珍惜 C.毁灭 D.惩罚
5.From the passage, we know that ______.
A. the United States has very few tornadoes
B. tornadoes are one of the worst weather events in the world
C. people should stay in big rooms with windows when tornadoes come
D. more than one thousand people were killed by tornadoes in the USA last year
九年级英语阅读理解中等难度题查看答案及解析
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任务型阅读 根据短文内容，回答下列问题。
Is there life on Mars? We don’t know．We’re sure that people on the earth are not able to live on Mars．People on the earth need oxygen to breathe in．There is almost no oxygen on Mars．
Living on Mars would be like living on a very high mountain．There would be little air．The temperature might be 50 degree above zero at noon and 140 degrees below zero at night．Many people think there may be plants on Mars．We know that on Mars there is carbon．This is a kind of material found in all plants and animals on the earth．Mars looks red through a telescope(望远镜)．It seems gray in some places．At times the gray color turn gray-green，then brown，then gray again．The gray-green color may be a kind of plant changing color with the seasons．
Will men go to Mars one day? If they do，they must take their own oxygen，food and clothing with them．
根据表格内容，完成下面各题。
1.Can people live on Mars?
2.Is there any oxygen on Mars?
3.What kind of material can be found in all plants and animals on the earth?
4.Does Mars look gray through a telescope?
5.What must men take if they go to Mars?
九年级英语其他题中等难度题查看答案及解析