When an ant dies, other ants take it out of the nest, often within an hour after its death. This behavior interests scientists and they wonder how ants know for sure—and so soon—that another ant is dead.
One scientist recently came up with a way to explain this ant behaviour. Dong-Hwan Choe is a biologist, a scientist who studies animals and plants. He found that ants have a chemical on the outside of their bodies that signals to other ants, “I'm dead—take me away” when it is dead.
But there's a question to answer: As we know, if an ant is dead, it stops moving. But when an ant is sleeping or knocked unconscious, it is also not moving. However, other ants don't move the living ant out of the nest. How do they know this ant is not dead? Choe found that ants have another chemical on their bodies, which tells nearby ants something like, “Wait—I'm not dead yet” when it is not dead. Choe suspects that when an ant dies, the chemical that says, “Wait I'm not dead yet” quickly goes away. When other ants detect the “dead” chemical without the “not dead yet” chemical, they move away the body.
To test his theory , Choe and his team put different chemicals on ants. When the scientists used the “I'm dead” chemical, other ants quickly moved the treated ant away. When the scientists used the “Wait—I'm not dead yet” chemical, other ants left the treated ant alone. Choe believes this behavior shows that the “not dead yet” chemical overrides the “dead” chemical when picked up by other ants. And that when an ant dies, the “not dead yet” chemical fades away. Other nearby ants then detect the remaining “dead” chemical and remove the body from the nest.
Understanding this behavior can help scientists figure out how to stop ants from invading new places and causing problems.
1.What is the function of the first paragraph?
A. Leading the following paragraphs.
B. Showing the main idea of the passage.
C. Introducing the background of the passage.
D. Giving a summary of the passage.
2.Which of the following has the closest meaning to the underlined word “overrides” in the fourth paragraph?
A. is weaker than B. is stronger than C. is better than D. is worse than
3. What can we learn from the passage?
A. Living ants can also be taken away when they are not moving.
B. When an ant dies, it can tell others using a certain chemical.
C. A living ant can pretend to be dead using a special chemical.
D. Ants often use chemicals to communicate with each other.
4.Which of the following descriptions about Dong-Hwan Choe is right?
A. Choe did this study in order to stop ants from invading new places.
B. Choe is a biologist who is only interested in animals, especially in ants.
C. Choe first came up with an idea to explain this ant behavior,and then did some tests to prove his theory.
D. Choe did the research on this ant behavior on his own
高三英语阅读理解中等难度题
When an ant dies, other ants take it out of the nest, often within an hour after its death. This behavior interests scientists and they wonder how ants know for sure—and so soon—that another ant is dead.
One scientist recently came up with a way to explain this ant behaviour. Dong-Hwan Choe is a biologist, a scientist who studies animals and plants. He found that ants have a chemical on the outside of their bodies that signals to other ants, “I'm dead—take me away” when it is dead.
But there's a question to answer: As we know, if an ant is dead, it stops moving. But when an ant is sleeping or knocked unconscious, it is also not moving. However, other ants don't move the living ant out of the nest. How do they know this ant is not dead? Choe found that ants have another chemical on their bodies, which tells nearby ants something like, “Wait—I'm not dead yet” when it is not dead. Choe suspects that when an ant dies, the chemical that says, “Wait I'm not dead yet” quickly goes away. When other ants detect the “dead” chemical without the “not dead yet” chemical, they move away the body.
To test his theory , Choe and his team put different chemicals on ants. When the scientists used the “I'm dead” chemical, other ants quickly moved the treated ant away. When the scientists used the “Wait—I'm not dead yet” chemical, other ants left the treated ant alone. Choe believes this behavior shows that the “not dead yet” chemical overrides the “dead” chemical when picked up by other ants. And that when an ant dies, the “not dead yet” chemical fades away. Other nearby ants then detect the remaining “dead” chemical and remove the body from the nest.
Understanding this behavior can help scientists figure out how to stop ants from invading new places and causing problems.
1.What is the function of the first paragraph?
A. Leading the following paragraphs.
B. Showing the main idea of the passage.
C. Introducing the background of the passage.
D. Giving a summary of the passage.
2.Which of the following has the closest meaning to the underlined word “overrides” in the fourth paragraph?
A. is weaker than B. is stronger than C. is better than D. is worse than
3. What can we learn from the passage?
A. Living ants can also be taken away when they are not moving.
B. When an ant dies, it can tell others using a certain chemical.
C. A living ant can pretend to be dead using a special chemical.
D. Ants often use chemicals to communicate with each other.
4.Which of the following descriptions about Dong-Hwan Choe is right?
A. Choe did this study in order to stop ants from invading new places.
B. Choe is a biologist who is only interested in animals, especially in ants.
C. Choe first came up with an idea to explain this ant behavior,and then did some tests to prove his theory.
D. Choe did the research on this ant behavior on his own
高三英语阅读理解中等难度题查看答案及解析
When an ant dies, other ants take it out of the nest, often within an hour after its death. This behavior interests scientists and they wonder how ants know for sure—and so soon—that another ant is dead.
One scientist recently came up with a way to explain this ant behavior. Dong-Hwan Choe is a biologist, a scientist who studies animals and plants. He found that ants have a chemical on the outside of their bodies that signals to other ants, “I'm dead—take me away” when it is dead.
But there's a question to answer: As we know, if an ant is dead, it stops moving. But when an ant is sleeping or knocked unconscious, it is also not moving. However, other ants don't move the living ant out of the nest. How do they know this ant is not dead? Choe found that ants have another chemical on their bodies, which tells nearby ants something like, “Wait—I'm not dead yet” when it is not dead. Choe suspects that when an ant dies, the chemical that says, “Wait I'm not dead yet” quickly goes away. When other ants detect the “dead” chemical without the “not dead yet” chemical, they move away the body.
To test his theory , Choe and his team put different chemicals on ants. When the scientists used the “I'm dead” chemical, other ants quickly moved the treated ant away. When the scientists used the “Wait—I'm not dead yet” chemical, other ants left the treated ant alone. Choe believes this behavior shows that the “not dead yet” chemical overrides the “dead” chemical when picked up by other ants. And that when an ant dies, the “not dead yet” chemical fades away. Other nearby ants then detect the remaining “dead” chemical and remove the body from the nest.
Understanding this behavior can help scientists figure out how to stop ants from invading new places and causing problems.
1.What is the function of the first paragraph?
A.Leading the following paragraphs.
B.Showing the main idea of the passage.
C.Introducing the background of the passage.
D.Giving a summary of the passage.
2.Which of the following has the closest meaning to the underlined word “overrides” in the fourth paragraph?
A.is weaker than B.is stronger than C.is better than D.is worse than
3.What can we learn from the passage?
A.Living ants can also be taken away when they are not moving.
B.When an ant dies, it can tell others using a certain chemical.
C.A living ant can pretend to be dead using a special chemical.
D.Ants often use chemicals to communicate with each other.
4.Which of the following descriptions about Dong-Hwan Choe is right?
A.Choe did this study in order to stop ants from invading new places.
B.Choe is a biologist who is only interested in animals, especially in ants.
C.Choe first came up with an idea to explain this ant behavior,and then did some tests to prove his theory.
D.Choe did the research on this ant behavior on his own
5.What is mainly discussed in the passage?
A.How to decide whether an ant is dead or not.
B.Why ants have special chemicals on their bodies.
C.reasons for the removable behavior of ants.
D.How ants manage to keep their nests clean.
高三英语阅读理解中等难度题查看答案及解析
C
When an ant dies, other ants take it out of the nest, often within an hour after its death. This behavior interests scientists and they wonder how ants know for sure--and so soon--that another ant is dead.
One scientist recently came up with a way to explain this ant behavior. Dong-Hwan Choe is a biologist, a scientist who studies animals and plants. He found that ants have a chemical on the outside of their bodies that signals to other ants, “I’m dead--take me away” when it is dead.
One scientist recently came up with a way to explain this ant behavior. Dong-Hwan Choe is a biologist, a scientist who studies animals and plants. He found that ants have a chemical on the outside of their bodies that signals to other ants, “I’m dead---take me away” when it is dead.
But there's a question to answer: As we know, if an ant is dead, it stops moving. But when an ant is sleeping or knocked unconscious, it is also not moving. However, other ants don't move the living ant out of the nest. How do they know this ant is not dead? Choe found that ants have another chemical on their bodies, which tells nearby ants something like, “Wait—I'm not dead yet” when it is not dead. Choe suspects that when an ant dies, the chemical that says, “Wait— I'm not dead yet” quickly goes away. When other ants detect the “dead” chemical without the “not dead yet” chemical, they move away the body.
To test his theory, Choe and his team put different chemicals on ants. When the scientists used the “I'm dead” chemical, other ants quickly moved the treated ant away. When the scientists used the “Wait—I'm not dead yet” chemical, other ants left the treated ant alone. Choe believes this behavior shows that the “not dead yet” chemical overrides the “dead” chemical when picked up by other ants. And that when an ant dies, the “not dead yet” chemical fades away. Other nearby ants then detect the remaining “dead” chemical and remove the body from the nest.
Understanding this behavior can help scientists figure out how to stop ants from invading new places and causing problems.
1.What is the function of the first paragraph?
A. Leading the following paragraphs.
B. Showing the main idea of the passage.
C. Introducing the background of the passage.
D. Giving a summary of the passage.
2.Which of the following has the closest meaning to the underlined word “overrides” in the fourth paragraph?
A. is weaker than B. is stronger than C. is better than D. is worse than
3.What can we learn from the passage?
A. Living ants can also be taken away when they are not moving.
B. When an ant dies, it can tell others using a certain chemical.
C. A living ant can pretend to be dead using a special chemical.
D. Ants often use chemicals to communicate with each other.
4.Which of the following descriptions about Dong-Hwan Choe is right?
A. Choe did this study in order to stop ants from invading new places.
B. Choe is a biologist who is only interested in animals, especially in ants.
C. Choe first came up with an idea to explain this ant behavior,and then did some tests to prove his theory.
D. Choe did the research on this ant behavior on his own.
高三英语阅读理解中等难度题查看答案及解析
If you put a stone in the way of an ant, it will go around, over, under or on top, without stopping, until it finds a way to get ______ it needs to be.
A. what B. how C. which D. Where
高三英语单项填空中等难度题查看答案及解析
---- An ant has two stomachs --- one for itself and the other for others.
----Really? Quite interesting. I ________ anything about it.
A. don’t know B. hadn't known C. haven’t known D. didn’t know
高三英语单项填空中等难度题查看答案及解析
What does the man w ant to know ?
A. What time it is. B. When his train is supposed to leave. C. Where he can find the boarding hall.
高三英语短对话中等难度题查看答案及解析
I learned about life from an ant farm. When I was seven years old, my family ____ an ant farm at home. First, we put clean sand in a thin glass box, and then we brought some ants from the backyard and placed them into the ____ home.
Shortly after the new ____ were dropped into the glass structure, they got to work making tunnels. I was amazed that each one knew ____what to do. After hours of staring, I realized that the ants had assigned jobs. With my mom ' s help, I kept a diary of what happened each day and ____ the ants. My favorite was the biggest , Cinderella. I drew a picture of her in my diary, which I still have .
One day a tragedy ____ the ant farm.While I was observing the ants , I had put my face so close to the structure that I accidentally ____ it over. Unfortunately, my carelessness caused all the tunnels to ____. Although the ants ____ their earthquake, one by one they began to die. I was ____ as I watched them give up their tunnel-building to carry the bodies to a corner of the farm. My mother reported that the ants were actually dying of "frustration"--- the feeling annoyed and disappointed as they couldn’t control the situation . They simply could not ____ the reality that their tunnels had been destroyed. Cinderella was the last to die ---she did so while carrying a dead ant on her back .
Although much time has passed, I still think of that ant farm. Mom had hoped it would teach me about the natural world, ____ it taught me much more.____ the years, I came to realize the ants were a study in the benefits of ____. Working together, they were able to create a(an) ____ world for themselves. I also learned that they should be____ for their hard work. Day in and day out, each labored at their task. The ant farm showed that teamwork and perseverance are indeed two key ____ for success. But there was an even larger lesson that I did not ____until recently: Disaster is a natural part of life, and must be ____. Unlike the ants, humans cannot give up when they face ____. Unlike the ants, we have to realize that if a tunnel caves in , we just have to build another.
1.A.created B.bought C.ran D.laid
2.A.empty B.new C.strange D.distant
3.A.guests B.settlers C.friends D.members
4.A.probably B.roughly C.exactly D.normally
5.A.named B.trained C.compared D.measured
6.A.affected B.struck C.kicked D.beat
7.A.split B.took C.tipped D.handed
8.A.rush out B.break in C.drop out D.cave in
9.A.experienced B.predicted C.faced D.survived
10.A.annoyed B.astonished C.moved D.thrilled
11.A.reflect B.ignore C.confirm D.stand
12.A.and B.but C.so D.or
13.A.In B.For C.From D.Over
14.A.teamwork B.devotion C.responsibility D.organization
15.A.relaxing B.amusing C.moving D.amazing
16.A.supported B.inspired C.admired D.admitted
17.A.conclusions B.solutions C.recipes D.circumstances
18.A.give B.realize C.take D.adopt
19.A.accepted B.suffered C.escaped D.managed
20.A.challenges B.barriers C.pressure D.disappointment
高三英语完形填空中等难度题查看答案及解析
I learned about life from an ant farm. When I was seven years old, my family tried to __1__ an ant farm at home. First, we put clean sand in a thin glass box, and then we brought some ants from the backyard and placed them into the __2__ home.
Shortly after the new __3__ were dropped into the glass structure, they got to work making tunnels. I was amazed that each one knew __4__ what to do. After hours of staring, I realized that the ants had particular given jobs. With my mom’s help, I kept a journal of what happened each day and __5__ the ants. My favorite was the biggest, Cinderella. I drew a picture of her in my journal, which I still have.
On day five a disaster __6__ the ant farm. While I was __7__ the ants, I had put my face so close to the structure that I accidentally tipped it over, __8__ in all the tunnels. Although the ants __9__ their earthquake, one by one they began to die. I was __10__ as I watched them give up their tunnel-building to carry the bodies to a corner of the farm. My mother reported that the ants were dying of “frustration”—feeling annoyed and impatient as they couldn’t control the situation. They simply could not __11__ the reality that their tunnels had been destroyed. Cinderella was the last to die; she did so while carrying a dead ant on her back.
Although much time has passed, I still think of that ant farm. Mom had hoped it would teach me about the natural world, __12__ it taught me much more. __13__ the years, I came to realize the ants were a study in the benefits of __14__. Working together, they were able to create a(n) __15__ world for themselves. I also learned that they should be __16__ for their hard work. Day in and day out, each labored at their task. The ant farm demonstrated that teamwork and perseverance are indeed two key __17__ to success. But there was an even larger lesson that I did not __18__ until recently: Disaster is a natural part of life, and must be __19__. Unlike the ants, humans cannot give up when they face __20__. Unlike the ants, we have to realize that if a tunnel caves in, we just have to build another.
1. A.get B.buy C.run D.find
2. A.empty B.new C.strange D.distant
3. A.guests B.settlers C.friends D.members
4. A.probably B.roughly C.exactly D.normally
5. A.named B.trained C.compared D.measured
6. A.affected B.struck C.kicked D.beat
7. A.removing B.teaching C.observing D.collecting
8. A.turning B.rushing C.filling D.caving
9. A.experienced B.predicted C.faced D.survived
10. A.annoyed B.horrified C.moved D.thrilled
11. A.reflect B.ignore C.confirm D.stand
12. A.and B.but C.so D.or
13. A.In B.For C.From D.Over
14. A.teamwork B.devotion C.responsibility D.organization
15. A.relaxing B.amusing C.moving D.amazing
16. A.supported B.inspired C.admired D.admitted
17. A.certificates B.approaches C.ingredients D.circumstances
18. A.give B.realize C.take D.adopt
19. A.accepted B.suffered C.achieved D.managed
20. A.challenges B.barriers C.pressure D.disappointment
高三英语完型填空中等难度题查看答案及解析
-----An ant has two stomachs --- one for itself, one for others.
-----Really? Quite interesting. I ____ anything about it.
A.don’t know | B.have known | C.haven’t known | D.didn’t know |
高三英语单项填空中等难度题查看答案及解析
--- An ant has two stomachs --- one for itself, one for others.
--- Really? Quite interesting. I ____ anything about it.
A.don’t know | B.have known | C.haven’t known | D.didn’t know |
高三英语单项填空中等难度题查看答案及解析