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Space vegetables are grown from seeds(种子)that have been taken to space and brought back to the earth. The seeds are affected by the radiation(辐射)and low gravity in space. When they are brought back to the earth, these seeds produce vegetables that are bigger and healthier than normal vegetables. However, some people worry about eating space vegetables. They think that space vegetables might not be good for us and could make us get sick because of the radiation in space. However, people should not be frightened because space vegetables are very healthy.
Here are some facts that you should know about space vegetables.
Space vegetables are grown from seeds that are carefully chosen. When seeds are brought back from space, they are tested to make sure that they will be safe to eat.
Space vegetables are better for you than normal vegetables. For example, space tomatoes stay fresh for twenty days, which is one week longer than normal tomatoes.
After genetically modified(转基因)food appeared in the market, people worried that they were eating unknown things. For example, if nut genes(坚果基因)are put inside potatoes, people allergic to nuts might get sick from eating these potatoes because they do not know they are also eating nuts. Unlike genetically modified food, space vegetables have not been genetically changed. This means that no new genes are put into the vegetables. Therefore, there are no dangers of eating something unknown.
1.Genetically modified food is different from space vegetables because it .
A. is grown in space
B. has nothing unknown
C. has been genetically changed
D. has no new genes
2.According to the passage, normal tomatoes can stay fresh for about days.
A. seven B. thirteen
C. twenty D. twenty-seven
3.The underlined word "allergic" means“ ”in Chinese.
A.过敏 B.种植
C.发现 D.出售
4.The writer wants to tell us that .
A. space vegetables are grown in space
B. everybody worries about eating space vegetables
C. space vegetables are safe and good for people to eat
D. space vegetables may bring illness to us because of the radiation in space
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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Space vegetables are grown from seeds (种子) that have been taken to space and brought back to the earth. The seeds are affected by the radiation (辐射) and low gravity in space. When they are brought back to the earth, these seeds produce vegetables that are bigger and healthier than normal vegetables. However, some people worry about eating space vegetables. They think that space vegetables might not be good for us and could make us get sick because of the radiation in space. However, people should not be frightened because space vegetables are very healthy.
Here are some facts that you should know about space vegetables.
Space vegetables are grown from seeds that are carefully chosen. When seeds are brought back from space, they are tested to make sure that they will be safe to eat.
Space vegetables are better for you than normal vegetables. For example, space tomatoes stay fresh for twenty days, which is one week longer than normal tomatoes.
After genetically modified (转基因) food appeared in the market, people worried that they were eating unknown things. For example, if nut genes (坚果基因) are put inside potatoes, people allergic to nuts might get sick from eating these potatoes because they do not know they are also eating nuts. Unlike genetically modified food, space vegetables have not been genetically changed. This means that no new genes are put into the vegetables. Therefore, there are no dangers of eating something unknown.
1.The seeds brought back from space produce ______ vegetables according to the passage.
A. more delicious B. healthier and bigger
C. more dangerous D. cheaper and healthier
2.Genetically modified food is different from space vegetables because it ______.
A. is grown in space
B. has nothing unknown
C. has been genetically changed
D. has no new genes
3.According to the passage, normal tomatoes can stay fresh for about ______ days.
A. seven B. thirteen
C. twenty D. twenty-seven
4.The underlined word “allergic” means “______” in Chinese.
A. 过敏 B. 种植
C. 发现 D. 出售
5.The writer wants to tell us that ______.
A. space vegetables are grown in space
B. everybody worries about eating space vegetables
C. space vegetables are safe and good for people to eat
D. space vegetables may bring illness to us because of the radiation in space
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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Space vegetables are grown from seeds (种子) that have been taken to space and brought back to the earth. The seeds are affected by the radiation (辐射) and low gravity in space. When they are brought back to the earth, these seeds produce vegetables that are bigger and healthier than normal vegetables. However, some people worry about eating space vegetables. They think that space vegetables might not be good for us and could make us get sick because of the radiation in space. However, people should not be frightened because space vegetables are very healthy.
Here are some facts that you should know about space vegetables.
Space vegetables are grown from seeds that are carefully chosen. When seeds are brought back from space, they are tested to make sure that they will be safe to eat.
Space vegetables are better for you than normal vegetables. For example, space tomatoes stay fresh for twenty days, which is one week longer than normal tomatoes.
After genetically modified (转基因) food appeared in the market, people worried that they were eating unknown things. For example, if nut genes (坚果基因) are put inside potatoes, people allergic (过敏的) to nuts might get sick from eating these potatoes because they do not know they are also eating nuts. Unlike genetically modified food, space vegetables have not been genetically changed. This means that no new genes are put into the vegetables. Therefore, there are no dangers of eating something unknown.
1.The seeds brought back from space produce ______ vegetables according to the passage.
A. more delicious B. healthier and bigger
C. more dangerous D. cheaper and healthier
2.Genetically modified food is different from space vegetables because it ______.
A. is grown in space B. has nothing unknown
C. has been genetically changed D. has no new genes
3.According to the passage, normal tomatoes can stay fresh for about ______ days.
A. seven B. thirteen C. twenty D. twenty-seven
4.The writer wants to tell us that ______.
A. space vegetables are grown in space
B. everybody worries about eating space vegetables
C. space vegetables are safe and good for people to eat
D. space vegetables may bring illness to us because of the radiation in space
九年级英语阅读理解困难题查看答案及解析
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Some primary schoolchildren have been raised in homes with more green space around. They are likely to come with larger volumes of white and grey matter in certain areas of the brain. These differences are associated(关联)with good influence on cognitive function(认知功能). This is the main conclusion of a study led by the Barcelona Institute for Global Health.
The study was performed among 253 schoolchildren in Spain. Lifelong exposure(接触) to green space in the living places was recorded―using the information on the children's addresses from birth up through to the time of the study. Brain structure was studied using 3D magnetic resonance imaging (MRI). Working memory and inattentiveness(注意力不集中)were graded with computers.
"This is the first study that shows the association between long-term exposure to green space and brain structure." Says Dr. Payam Dadvand, the leading researcher of the study, "Our findings suggest that exposure to green space early in life could result in good structural changes in the brain."
The findings show that long-term exposure to greenness is positively associated with white and grey matter volumes in several parts of the brain. Some of them are related to(与 ……有关)higher scores on cognitive tests. Moreover, larger volumes of white and grey matter in those parts might lead to better working memory and less inattentiveness.
Exposure to nature has been thought to be necessary for brain development in children. Another study of 2,593 children shows that children in school with more green space have a greater increase in working memory and a greater decrease in inattentiveness.
Humans are believed to be tied to nature. Playing in greener areas offers children chances to search and learn. Accordingly, green space is thought to prompt important exercises in discovery, creativity and risk taking. These exercises in turn positively influence brain development.
Dr. Dadvand's study suggests how such structural changes could bring about the good influence of green spaces on cognitive development, it also adds to the proof that suggests the lasting influence of early life exposure to greenness on our health and the importance of increasing greenness in cities.
Further studies are needed to prove the findings in other populations, settings and climates. And researchers need to examine differences according to the nature and quality of green space.
1.The second paragraph is mainly about________ .
A.how long the study lasted B.what was recorded in the study
C.how the study was carried out D.who took part in the study
2.The word "prompt" in paragraph 6 probably means "________ ".
A.control B.encourage C.balance D.change
3.What can we learn from the passage?
A.Working memory influences white and grey matter in the brain.
B.Dr. Dadvand stressed the importance of changing the environment.
C.Studies proved the influence of greenness on populations out of Spain.
D.Living in greener neighborhoods is good for children in brain development.
九年级英语阅读单选困难题查看答案及解析
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Some primary schoolchildren have been raised in homes with more green space around. They are likely to come with larger volumes of white and grey matter in certain areas of the brain. These differences are associated(关联) with beneficial effects on cognitive function (认知功能) . This is the main conclusion of a study led by the Barcelona Institute for Global Health.
The study was performed among 253 schoolchildren in Spain .Lifelong exposure(接触) to green space in the living places was recorded—using the information on the children’s addresses from birth up through to the time of the study. Brain structure was studied using 3D magnetic resonance imaging (MRI). Working memory and inattentiveness(注意力不集中)were graded with computers.
“This is the first study that shows the association between long-term exposure to green space and brain structure.” Says Dr. Payam Dadvand, the leading researcher of the study, “Our findings suggest that exposure to green space early in life could result in beneficial structural changes in the brain.”
The findings show that long-term exposure to greenness is positively associated with white and grey matter volumes in several parts of the brain. Some of them are related to higher scores on cognitive tests. Moreover, larger volumes of white and grey matter in those parts might lead to better working memory and less inattentiveness.
Exposure to nature has been thought to be necessary for brain development in children. Another study of 2,593 children shows that children in school with more green space have a greater increase in working memory and a greater decrease in inattentiveness.
Humans are believed to be tied to nature. Playing in greener areas offers children opportunities to search and learn. Accordingly, green space is thought to prompt important exercises in discovery, creativity and risk taking. These exercises in turn positively influence brain development.
Dr. Dadvand’s study suggests how such structural changes could bring about the beneficial effects of green spaces on cognitive development, it also adds to the proof that suggests the lasting effects of early life exposure to greenness on our health and the benefits of increasing greenness in cities.
Further studies are needed to prove the findings in other populations, settings and climates. And researchers need to examine differences according to the nature and quality of green space.
1.The second paragraph is mainly about .
A. how the study was performed B. what was recorded in the study
C. how long the study lasted D. who took part in the study
2.The word “prompt” in paragraph 6 probably means “ “.
A. control B. encourage C. balance D. change
3.What can we learn from the passage?
A. Working memory influences white and grey matter in the brain.
B. Dr. Dadvand stressed the importance of changing the environment.
C. Studies proved the influence of greenness on populations outs of Spain.
D. Living in greener neighborhoods benefits children in brain development.
九年级英语阅读单选困难题查看答案及解析
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Do you have a vegetable garden? Have you ever watched a seed (种子) sprout (发芽), grow and fruit until it became the tomato on your plate? If you go to school in the US, there’s a good chance you have.
At the moment, nearly 20 percent of schools in the US have their own vegetable gardens that are planted and cared for by students. Next year, even more schools will have gardens and more US kids will know the pleasure of growing their own food.
Much of the growing interest in planting comes from First Lady Michelle Obama’s “Let’s Move” project, which started last year. The First Lady wants to improve children’s nutrition (营养) in the US — and she began her project by planting a garden at the White House with the help of some local kids. The kids were more interested in eating the vegetables from their garden than in eating fast food. This gave the First Lady an idea.
Because so many US kids eat breakfast and lunch at school, the food should be healthy and good. Why not let kids grow the food for their own cafeterias (食堂)? Mrs .Obama’s plan gives money to schools to start their own gardens, and more school gardens are sprouting up every day.
Students also use the information from their gardens to study science and math, and they paint pictures of their gardens in art class. Many students choose to work in the garden instead of playing on the playground during their noon break. Sound like fun? Ask your teacher if there’s room for a garden at your school, too.
1.Much of the growing interest in planting comes from ___________.
A. The First Lady’s “Our Garden” project
B. The First Lady’s money
C. The First Lady’s ideas
D. The First Lady’s “Let’s Move” project
2.. Why should the food be healthy and good?
A. Because so many US kids aren’t healthy.
B. Because so many US kids eat breakfast and lunch at school.
C. Because so many US kids’ nutrition is good enough.
D. Because so many US kids grow vegetables.
3.According to the story, which statement is NOT true?
A. The “Let’s Move” project started last month.
B. The First Lady began planting a garden with the help of some local school kids.
C. Next year, more US kids will have the pleasure of growing their own food.
D. Students use the information from their gardens to study science and math.
4.According to the story, we learn that ___________.
A. Every school in the US has its own vegetable garden
B. All kids in the US grow the food for their own cafeterias
C. First Lady Michelle Obama’s “Let’s Move” project was unsuccessful
D. Students can learn a lot from their gardens
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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The Clarks China for 6 years, and they are very familiar with Chinese culture.
A. have been away from B. have been in
C. have been to D. haven’t lived in
九年级英语单项填空中等难度题查看答案及解析
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Carrots are grown all over the world. They are easy to plant and easy to harvest. They have a good taste.
When people think about carrots, they usually think they are a kind of long, thin, orange colored vegetable. In fact, carrots are in many different sizes and shapes. And not all carrots are orange.
Carrots should be grown in a field that does not have water for a long time. The earth also should not be too hard. To prepare your carrot garden, dig up the earth and turn it over（翻土）．？
Weather, soil condition（土壤状况），and time affect（影响）the taste of carrots. Warm days and cool nights are the best time to grow great delicious carrots.
The best way to decide if a carrot is ready to be harvested is by its color. Usually, the brighter the color is, the better the taste is.
Most people do not know that carrots can be grown during the winter months. If the winter is not cold enough to freeze the ground, you can grow carrots the same way as you do during the summer months.
Carrots are prepared and eaten in many different ways. They are cut into thin pieces and cooked with other vegetables or meat. Or, they are washed, and eaten just as they come out of the ground.
1.What does the underlined word "harvest" mean?
A.品尝 B.收获 C.种植 D.销售
2.What can affect the taste of carrots?
A.Weather and time B.Weather and soil condition
C.Soil condition and time D.Weather, time and soil condition
3.___________ carrots have a better taste.
A.The long B.The orange C.The thin D.The bright
4.Which is the right order according to the article?
a. Carrots are eaten in different ways.
b. Carrots are in many sizes and shapes.
c. Dig up the earth and turn it over before planting carrots.
d. The best way to decide if a carrot is ready to be harvested is by its color.
A.c->a->b->d B.b->c->d->a C.c->b->d->a D.d-c->b->a
九年级英语阅读单选困难题查看答案及解析
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Carrots are grown all over the world. They are easy to plant and easy to harvest. They have a good taste.
When people think about carrots, they usually think they are a kind of long, thin, orange-colored vegetable. In fact, carrots are in many different sizes and shapes. And not all carrots are orange.
Carrots should be grown in a field that does not have water for a long time. The earth also should not be too hard. To prepare your carrot garden, dig up the earth and turn it over(翻土).
Weather, soil condition(土壤状况), and time affect(影响) the taste of carrots. Warm days and cool nights are the best time to grow great delicious carrots.
The best way to decide if a carrot is ready to be harvested is by its color. Usually, the brighter the color is, the better the taste is.
Most people do not know that carrots can be grown during the winter months. If the winter is not cold enough to freeze the ground, you can grow carrots the same way as you do during the summer months.
Carrots are prepared and eaten in many different ways. They are cut into thin pieces and cooked with other vegetables or meat. Or, they are washed, and eaten just as they come out of the ground.
1. What does the underlined word “harvest” mean?
A. 品尝 B. 收获 C. 种植 D. 销售
2.What can affect the taste of carrots?
A. Weather and tome B. Weather and soil condition
C. Soil condition and time D. Weather, time and soil condition
3. carrots have a better taste.
A. The long B. The orange
C. The thin D. The bright
4.Which is the right order according to the article?
a. Carrots are eaten in different ways.
b. Carrots are in many sizes and shapes.
c. Dig up the earth and turn it over before planting carrots.
d. The best way to decide if a carrot is ready to be harvested is by its color.
A. b→a→c→d B. b→c→d→a
C. c→b→d→a D. d→c→b→a
5.Which of the following is Not true?
A. Carrots are easy to plant and easy to harvest.
B. Carrots should be grown in a field without water for a long time.
C. Everyone knows that carrots can be grown during the winter months.
D. Carrots have a good taste.
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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Grown-ups are often surprised by how well they remember something they learned as children but have never practiced still swim as well as ever ever since. A man when he gets back who has not had a chance to go swimming for years can in the water. He can get on a bicycle after many years and still ride away. He can play catch and hit a ball as well as his son. A mother who has not thought about the words for years can teach her daughter the poem that begins "Twinkle, twinkle, little star"。remember the story of Cinderella or Goldilocks and the Three Bears.
One explanation is the law of over learning , which can be stated as follows: Once we have learned something, additional learning trials(尝试)increase the length of time we will remember it.
In childhood we usually continue to practice such skills as swimming, bicycle riding, and playing baseball long after we have learned them. We continue to listen to and remind ourselves of words such as "Twinkle, twinkle, little star" and childhood tales such as Cinderella and Goldilocks. We not only learn but overleam.
The multinlicatinn tables(乘法口诀表)are an excention to the general rule that we forget rather quickly the things that we learn in school, because they are another of the things we overlearn in childhood.
The law of overleaming explains why cramming(突击学习)for an examination. though it may result in a passing grade, is not a satisfactory way to learn a college course. By cramming, a student may learn the subject well enough to get by on the examination, but he is likely soon to forget almost everything he learned.A little overlearning. on the other hand, is really necessary for one's future development.
1.What is the main idea of paragraph I?
A. People remember well what they learned in childhood.
B. Children have a better memory than grown-ups.
C. Poem reading is a good way to learn words.
D. Stories for children arc easy to remember.
2.The author explains the law of overleaming by_________.
A. presenting research findings
B. selling down general rules
C. making a comparison
D. using examples
3.According to the author, being able to use multiplication tables is_______.
A. a result of overlearning
B. a special case of cramming
C. a skill to deal with math problems
D. a basic step towards advanced studies
4.What is the author's opinion on cramming?
A. It leads to failure in college exams.
B. It's helpful only in a limited way.
C. It's possible to result in poor memory.
D. It increases students' learning interest.
九年级英语阅读理解中等难度题查看答案及解析