9. Scientists are making every _________ to find a new cure to cancer.
| A．effect | B．affect | C．effort | D．Afford |
高三英语单项填空简单题
9. Scientists are making every _________ to find a new cure to cancer.
| A．effect | B．affect | C．effort | D．Afford |
高三英语单项填空简单题查看答案及解析
Young sunflowers turn and swing every day. New findings add to evidence that the plants are animal-like.
Harmer, a professor in the University of California at Davis’ Department of Plant Biology, carried out a series of experiments on sunflowers in the field, in pots outdoors and in indoor growth chambers.
By staking plants so that they could not move, Harmer showed that he could destroy their ability to track the sun. He also noticed that sunflowers prevented from moving were not as tough and leafy as those that were free to move. When plants were moved indoor with a settled overhead light, they continued to swing back and forth for a few days.
The indoor plants did start tracking the “sun” again when the apparent source of lighting was moved across the room. The plants could reliably track the movement and return at night when the artificial day was close to a 24-hour cycle, but not when it was closer to 30 hours.
When sunflowers track the sun, the east sides of their stems grew more rapidly than the west sides. At night, the west sides grew faster as the stem swung the other way. The team identified a number of genes that were expressed at higher levels on the sunward side of the plant during the day, or on the other side at night. A plant growth-regulating hormone, called auxin, appears to be a key driver.
The “dance” to the sun cycle obviously slows when the sunflower matures and its flowers open up. At that point, the plants stop moving during the day and settle down facing the sun in the east.
“Bees like warm flowers.” Harmer said, adding that the bees are cold-blooded, so landing on a warm flower saves them energy and perhaps feels really good.
“The morning warmth changes the flowers in a way to make them more appealing to insects, perhaps causing them to release more attractive scents earlier in the day.” he said. “We’re currently testing this idea.”
1.Why did Harmer do the experiment on sunflowers?
A.To see how sunflowers grow up.
B.To show what sunflowers’ genes are.
C.To study why sunflowers track the sun.
D.To check if sunflowers swing in cloudy days.
2.What does the underlined word “staking”(Par 3) probably mean in ?
A.Tracking. B.Fastening.
C.Preserving. D.Presenting.
3.What is the result of sunflowers being stopped from moving?
A.They won’t grow well.
B.They will grow faster than usual.
C.They won’t swing back though set free.
D.They will produce a number of new genes.
4.What would happen to the sunflowers if they became fully grown?
A.They would swing as usual.
B.They would move back and forth.
C.They would stop turning.
D.They would track the sun.
5.Bees are fond of dancing ______________.
A.on cold sunflowers B.in the circle of flowers
C.on warm sunflowers D.on the mature sunflowers
高三英语阅读理解中等难度题查看答案及解析
Young sunflowers turn and swing every day. New findings add to evidence that the plants are animal-like.
Harmer, a professor in the University of California at Davis, Department of Plant Biology, carried out a series of experiments on sunflowers in the field, in pots outdoors and in indoor growth chambers.
By staking plants so that they could not move, Harmer showed that he could destroy their ability to track the sun. He also noticed that sunflowers prevented from moving were not as tough and leafy as those that were free to move. When plants were moved indoor with a settled overhead light, they continued to swing back and forth for a few days.
The indoor plants did start tracking the “sun” again when the apparent source of lighting was moved across the room. The plants could reliably track the movement and return at night when the artificial day was close to a 24-hour cycle, but not when it was closer to 30 hours.
When sunflowers track the sun, the east sides of their stems grew more rapidly than the west sides. At night, the west sides grew faster as the stem swung the other way. The team identified a number of genes that were expressed at higher levels on the sunward side of the plant during the day or on the other side at night. A plant growth-regulating hormone (激素), called auxin, appears to be a key driver.
The “dance” to the sun cycle obviously slows when the sunflower matures (成熟) and its flowers open up. At that point, the plants stop moving during the day and settle down facing the sun in the east.
“Bees like warm flowers.” Harmer said, adding that the bees are cold-blooded, so landing on a warm flower saves them energy and perhaps feels really good.
“The morning warmth changes the flowers in a way to make them more appealing to insects, perhaps causing them to release more attractive scents earlier in the day.” he said “We’re currently testing this idea.”
1.Why did Harmer do the experiment on sunflowers?
A.To see how sunflowers grow up.
B.To show what sunflowers’ genes are.
C.To study why sunflowers track the sun.
D.To check if sunflowers swing in cloudy days.
2.What does the underlined word “staking” probably mean in Paragraph 3?
A.Tracking. B.Fining.
C.Growing. D.Searching.
3.What is the result of sunflowers being stopped from moving?
A.They will produce a number of new genes.
B.They will grow faster than usual.
C.They won’t swing back though set free.
D.They won’t grow well.
4.What is the advantage of sunflowers’ dance to the sun?
A.They attract more insects. B.They save more energy.
C.They mature more rapidly. D.They produce more flowers.
高三英语阅读理解中等难度题查看答案及解析
Young sunflowers turn and swing every day. New findings add to evidence that the plants are animal-like.
Harmer, a professor in the University of California at Davis’ Department of Plant Biology, carried out a series of experiments on sunflowers in the field, in pots outdoors and in indoor growth chambers.
By staking plants so that they could not move, Harmer showed that he could destroy their ability to track the sun. He also noticed that sunflowers prevented from moving were not as tough and leafy as those that were free to move. When plants were moved indoor with a settled overhead light, they continued to swing back and forth for a few days.
The indoor plants did start tracking the “sun” again when the apparent source of lighting was moved across the room. The plants could reliably track the movement and return at night when the artificial day was close to a 24-hour cycle, but not when it was closer to 30 hours.
When sunflowers track the sun, the cast sides of their stems grew more rapidly than the west sides. Ai night, the west sides grew faster as the stem swung the other way. The team identified a number of genes that were expressed at higher levels on the sunward side of the plant during the day, or on the other side at night. A plant growth-regulating hormone, called auxin, appears to be a key driver.
The “dance” to the sun cycle obviously slows when the sunflower matures and its flowers open up. At that point, the plants stop moving during the day and settle down facing the sun in the east.
“Bees like warm flowers.” Harmer said, adding that the bees are cold-blooded, so landing on a warm flower saves them energy and perhaps feels really good.
“The morning warmth changes the flowers in a way to make them more appealing to insects, perhaps causing them to release more attractive scents earlier in the day.” he said. “We’re currently testing this idea.”
1.Why did Harmer do the experiment on sunflowers?
A.To see how sunflowers grow up.
B.To show what sunflowers’ genes are.
C.To study why sunflowers track the sun.
D.To check if sunflowers swing in cloudy days.
2.What does the underlined word “slaking” probably mean in Paragraph 3?
A.Tracking. B.Fastening.
C.Preserving. D.Researching.
3.What is the result of sunflowers being stopped from moving?
A.They won’t grow well.
B.They will grow faster than usual.
C.They won’t swing back though set free.
D.They will produce a number of new genes.
4.What is the advantage of sunflowers’ dance to the sun?
A.They attract more insects. B.They save more energy.
C.They mature more rapidly. D.They produce more flowers.
高三英语阅读理解困难题查看答案及解析
Young sunflowers turn and swing every day. New findings add to evidence that the plants are animal-like.
Harmer, a professor in the University of California at Davis, Department of Plant Biology, carried out a series of experiments on sunflowers in the field, in pots outdoors and in indoor growth chambers.
By staking plants so that they could not move, Harmer showed that he could destroy their ability to track the sun. He also noticed that sunflowers prevented from moving were not as tough and leafy as those that were free to move. When plants were moved indoor with a settled overhead light, they continued to swing back and forth for a few days.
The indoor plants did start tracking the “sun” again when the apparent source of lighting was moved across the room. The plants could reliably track the movement and return at night when the artificial day was close to a 24-hour cycle, but not when it was closer to 30 hours.
When sunflowers track the sun, the east sides of their stems grew more rapidly than the west sides. At night, the west sides grew faster as the stem swung the other way. The team identified a number of genes that were expressed at higher levels on the sunward side of the plant during the day or on the other side at night. A plant growth-regulating hormone (激素), called auxin, appears to be a key driver.
The “dance” to the sun cycle obviously slows when the sunflower matures (成熟) and its flowers open up. At that point, the plants stop moving during the day and settle down facing the sun in the east.
“Bees like warm flowers.” Harmer said, adding that the bees are cold-blooded, so landing on a warm flower saves them energy and perhaps feels really good.
“The morning warmth changes the flowers in a way to make them more appealing to insects, perhaps causing them to release more attractive scents earlier in the day.” he said “We’re currently testing this idea.”
1.Why did Harmer do the experiment on sunflowers?
A. To see how sunflowers grow up
B. To show what sunflowers’ genes are.
C. To study why sunflowers track the sun.
D. To check if sunflowers swing in cloudy days.
2.What does the underlined word “staking” probably mean in Paragraph 3?
A. tracking B. fining
C. growing D. searching
3.What is the result of sunflowers being stopped from moving?
A. They will produce a number of new genes.
B. They will grow faster than usual.
C. They won’t swing back though set free.
D. They won’t grow well.
4.What is the advantage of sunflowers’ dance to the sun?
A. They attract more insects. B. They save more energy.
C. They mature more rapidly. D. They produce more flowers.
高三英语阅读理解中等难度题查看答案及解析
Young sunflowers turn and swing every day. New findings add to evidence that the plants are animal-like.
Harmer, a professor in the University of California at Davis’ Department of Plant Biology, carried out a series of experiments on sunflowers in the field, in pots outdoors and in indoor growth chambers.
By staking plants so that they could not move, Harmer showed that he could destroy their ability to track the sun. He also noticed that sunflowers prevented from moving were not as tough and leafy as those that were free to move. When plants were moved indoor with a settled overhead light, they continued to swing back and forth for a few days.
The indoor plants did start tracking the “sun” again when the apparent source of lighting was moved across the room. The plants could reliably track the movement and return at night when the artificial day was close to a 24-hour cycle, but not when it was closer to 30 hours.
When sunflowers track the sun, the cast sides of their stems grew more rapidly than the west sides. Ai night, the west sides grew faster as the stem swung the other way. The team identified a number of genes that were expressed at higher levels on the sunward side of the plant during the day, or on the other side at night. A plant growth-regulating hormone, called auxin, appears to be a key driver.
The “dance” to the sun cycle obviously slows when the sunflower matures and its flowers open up. At that point, the plants stop moving during the day and settle down facing the sun in the east.
“Bees like warm flowers.” Harmer said, adding that the bees are cold-blooded, so landing on a warm flower saves them energy and perhaps feels really good.
“The morning warmth changes the flowers in a way to make them more appealing to insects, perhaps causing them to release more attractive scents earlier in the day.” he said. “We’re currently testing this idea.”
1.Why did Harmer do the experiment on sunflowers?
A. To see how sunflowers grow up.
B. To show what sunflowers’ genes are.
C. To study why sunflowers track the sun.
D. To check if sunflowers swing in cloudy days.
2.What does the underlined word “slaking” probably mean in Paragraph 3?
A. Tracking. B. Fastening.
C. Preserving. D. Researching.
3.What is the result of sunflowers being stopped from moving?
A. They won’t grow well.
B. They will grow faster than usual.
C. They won’t swing back though set free.
D. They will produce a number of new genes.
4.What is the advantage of sunflowers’ dance to the sun?
A. They attract more insects. B. They save more energy.
C. They mature more rapidly. D. They produce more flowers.
高三英语阅读理解困难题查看答案及解析
A new study finds that our brains are wired to make music-color connections depending on how the music makes us feel. Mozart’s “Flute Concerto No.1 in G Major” is most often associated with bright yellow and orange, whereas his “Requiem in D Minor” is linked to bluish gray, the findings revealed.
US researchers from the University of California, Berkeley, enlisted nearly 100 subjects for a study on music and color. With 37 colors, the UC Berkeley study found that people tend to pair faster-paced music in a major key with lighter, more vivid, yellow colors, whereas slower-paced music in a minor key is more likely to be teamed up with darker, grayer, bluer colors.
“Surprisingly, we can predict with 95 percent accuracy how happy or sad the colors people pick will be based on how happy or sad the music is that they are listening to,” said lead author and UC Berkeley vision scientist Stephen Palmer.
In three experiments, the subjects listened to 18 classical music pieces that varied in pace (slow, medium, fast) and in major VS minor keys. In the first experiment, participants were asked to pick five of the 37 colors that best matched the music to which they were listening. Separately, they rated each piece of music on a scale of happy to sad, strong to weak, lively to dull, and calm to angry.
Next, the research team plans to study particiapants in Turkey where traditional music employs a wider range of scales than just major and minor. “We know that in Mexico and the US the responses are very similar,” Palmer said. “But we don’t yet know about China or Turkey.”
1.What can we know about Mozart’s “Flute Concerto No. 1 G Major”?
A. It is fast in pace.
B. It is slow in pace.
C. It makes us feel upset.
D. It makes us feel optimistic.
2.What did the US researchers find from the result of the new study?
A. There are colors that do not match any music.
B. People tend to connect happy colors to slow-paced music
C. There is a one-to-one connection between music and color.
D. People nearly do the same in picking colors for different music.
3.How did the researchers do the research?
A. By making predictions. B. By researching journals.
C. By conducting experiments. D. By studying famous musicians.
4.According to the text, the research mainly deals with __________
A. how colors or music influence our emotions
B. how emotions affect music-color connections
C. why we have different feelings towards music
D. why we have different feelings towards colors
高三英语阅读理解中等难度题查看答案及解析
A new study finds that our brains are wired to make music-color connections depending on how the music makes us feel. Mozart’s “Flute Concerto No.1 in G Major” is most often associated with bright yellow and orange, whereas his “Requiem in D Minor” is linked to bluish gray, the findings revealed.
US researchers from the University of California, Berkeley, enlisted nearly 100 subjects for a study on music and color. With 37 colors, the UC Berkeley study found that people tend to pair faster-paced music in a major key with lighter, more vivid, yellow colors, whereas slower-paced music in a minor key is more likely to be teamed up with darker, grayer, bluer colors.
“Surprisingly, we can predict with 95 percent accuracy how happy or sad the colors people pick will be based on how happy or sad the music is that they are listening to,” said lead author and UC Berkeley vision scientist Stephen Palmer.
In three experiments, the subjects listened to 18 classical music pieces that varied in pace (slow, medium, fast) and in major VS minor keys. In the first experiment, participants were asked to pick five of the 37 colors that best matched the music to which they were listening. Separately, they rated each piece of music on a scale of happy to sad, strong to weak, lively to dull, and calm to angry.
Next, the research team plans to study particiapants in Turkey where traditional music employs a wider range of scales than just major and minor. “We know that in Mexico and the US the responses are very similar,” Palmer said. “But we don’t yet know about China or Turkey.”
1.What can we know about Mozart’s “Flute Concerto No. 1 G Major”?
A. It is fast in pace.
B. It is slow in pace.
C. It makes us feel upset.
D. It makes us feel optimistic.
2.What did the US researchers find from the result of the new study?
A. There are colors that do not match any music.
B. People tend to connect happy colors to slow-paced music
C. There is a one-to-one connection between music and color.
D. People nearly do the same in picking colors for different music.
3. How did the researchers do the research?
A. By making predictions.
B. By researching journals.
C. By conducting experiments.
D. By studying famous musicians.
4.According to the text, the research mainly deals with __________
A. how colors or music influence our emotions
B. how emotions affect music-color connections
C. why we have different feelings towards music
D. why we have different feelings towards colors
高三英语阅读理解中等难度题查看答案及解析
Scientists are making new studies of color and its effects on our health. They have known for a long time that the color of a room or the color of the light in it can affect our feelings and emotions. Many prisons and hospitals have at least one room that is painted pink. Officials have found that light and color can produce physical changes in our bodies.
Professor Falfan worked with a group of 9 disabled children at school in Albert. Two of the children were blind. The other seven had normal sight. The scientists changed the color of the school room, and then looked for changes in blood pressure, heart beat and breathing rate. The effects of color changes were the same for the blind children as for those with normal sight. Their blood pressure dropped from about 120 to 100. Similar changes were reported in heart-beat and the breathing. The children were also calmer and less excited. Then the colors of the room were returned to orange and white. Blood pressure, heart-beat and breathing rate went up and the children became excited again.
Professor Falfan said different colors produce different levels of light energy. He said the differences seem to affect chemicals in the brain that carry messages from nerve to nerve and from nerve to muscle.
1. Light and color can affect .
A. only one’s feelings and emotions
B. one’s energy
C. one’s mental changes
D. one’s heart-beat, brain activities, blood pressure, feelings and emotions
2. The color of pink had a calming effect, that is to say, the color affects .
A. the chemicals in the brain
B. the eyes
C. the skin
D. the muscle
3.According to the text, orange and white are colors which can make people .
A. calm B. active C. sick D. blind
13. The colors in the school room mentioned in the passage were changed from .
A. orange to white
B. orange to dark blue
C. orange and white to pink or some other colors
D. gray to more colors
4. After reading the passage we can conclude that .
A. blind people can be affected by colors, too
B. one’s heart will beat faster in a colorful room than in a white room
C. the chemicals in the brain change with feelings and emotions
D. if one’s blood pressure drops, his breathing will get slower and slower
高三英语阅读理解中等难度题查看答案及解析
As there is less coal and oil, scientists are exploring new ways of making use of _____ energy, such as sunlight, wind, and water for power and fuel.
A. primary B. alternative
C. instant D. unique
高三英语单项填空中等难度题查看答案及解析