科目:高中英語 來源:設計必修一英語外研 題型:009
改錯
Though lacking of money, his parents managed to send him to university.
查看答案和解析>>
科目:高中英語 來源:2012-2013學年廣東揭陽一中高二下期第二次階段考試英語卷(帶解析) 題型:閱讀理解
Plants have family values, too; it seems, with new research suggesting they can recognize close relatives in order to work together.
An ability to tell family from strangers is well known in animals, allowing them to cooperate and share resources, but plants may possess similar social skills, scientists believe.
Susan Dudley and Amanda File of McMaster University in Ontario, Canada, report they have demonstrated for the first time that plants can recognize their kin.
This suggests that plants, though lacking recognition and memory, are capable of complex social interactions.
“Plants have this kind of hidden but complicated social life,” Dudley said.
The study found plants from the same species of beach-dwelling wildflower grew aggressively alongside unrelated neighbors but were less competitive when they shared soil with their families.
Sea rocket, a North American species, showed stronger and healthier root growth when planted in pots with strangers than when raised with relatives from the same maternal(母系的) family, the study found.
This is an example of kin selection, a behavior common in animals in which closely related individuals take a group approach to succeeding in their environment, the researchers said.
Kin selection also applies to competition, because if family members compete less with each other, the group will do better overall. “Everywhere you look, plants are growing right up next to other plants,” Dudley said,“ Usually it’s a case of each plant for itself. But sometimes those plants are related, and there are benefits to not wasting resources on being competitive, and there is not really a cost to not being competitive as long as your neighbor is also not being competitive.”
Learning and memory appear to be important for kin recognition in animals, but this isn’t an option for plants, she noted.
Some researchers speculate(猜測) that plants communicate through their roots, identifying themselves using tiny chemical signatures specific to each plant’s family.
【小題1】What’s the main idea of the message?
A.Studies find plants can recognize, communicate with relatives. |
B.Kin selection is important for plants. |
C.Animals can recognize and memorize their relatives. |
D.Competition asks plants to recognize their relatives. |
A.Animals can recognize and memorize their relatives. |
B.Animals’ social skill is to cooperate and share resources. |
C.Animals’ social skill can recognize close relatives in order to work together. |
D.Animals’ social skill is no use at all. |
A.grow well | B.compete with other kinds of plants |
C.strengthen the relationship among siblings | D.find which one is the best |
A.sea rocket is a South American species |
B.sea rocket grows aggressively alongside unrelated neighbors |
C.sea rocket grows aggressively alongside its siblings |
D.sea rocket is a kind of bush without flowers |
A.Plants communicate by using tiny chemical signatures specific to each plant’s family. |
B.Plants communicate with each other through their roots. |
C.Plants communicate with each other by their leaves. |
D.Plants communicate with each other with their flowers. |
查看答案和解析>>
科目:高中英語 來源:2014屆廣東揭陽一中高二下期第二次階段考試英語卷(解析版) 題型:閱讀理解
Plants have family values, too; it seems, with new research suggesting they can recognize close relatives in order to work together.
An ability to tell family from strangers is well known in animals, allowing them to cooperate and share resources, but plants may possess similar social skills, scientists believe.
Susan Dudley and Amanda File of McMaster University in Ontario, Canada, report they have demonstrated for the first time that plants can recognize their kin.
This suggests that plants, though lacking recognition and memory, are capable of complex social interactions.
“Plants have this kind of hidden but complicated social life,” Dudley said.
The study found plants from the same species of beach-dwelling wildflower grew aggressively alongside unrelated neighbors but were less competitive when they shared soil with their families.
Sea rocket, a North American species, showed stronger and healthier root growth when planted in pots with strangers than when raised with relatives from the same maternal(母系的) family, the study found.
This is an example of kin selection, a behavior common in animals in which closely related individuals take a group approach to succeeding in their environment, the researchers said.
Kin selection also applies to competition, because if family members compete less with each other, the group will do better overall. “Everywhere you look, plants are growing right up next to other plants,” Dudley said,“ Usually it’s a case of each plant for itself. But sometimes those plants are related, and there are benefits to not wasting resources on being competitive, and there is not really a cost to not being competitive as long as your neighbor is also not being competitive.”
Learning and memory appear to be important for kin recognition in animals, but this isn’t an option for plants, she noted.
Some researchers speculate(猜測) that plants communicate through their roots, identifying themselves using tiny chemical signatures specific to each plant’s family.
1.What’s the main idea of the message?
A.Studies find plants can recognize, communicate with relatives.
B.Kin selection is important for plants.
C.Animals can recognize and memorize their relatives.
D.Competition asks plants to recognize their relatives.
2.Which of the following is NOT right about animals’ social skill?
A.Animals can recognize and memorize their relatives.
B.Animals’ social skill is to cooperate and share resources.
C.Animals’ social skill can recognize close relatives in order to work together.
D.Animals’ social skill is no use at all.
3.Plants’ kin selection is to ________.
A.grow well B.compete with other kinds of plants
C.strengthen the relationship among siblings D.find which one is the best
4.From the passage,we learn that ________.
A.sea rocket is a South American species
B.sea rocket grows aggressively alongside unrelated neighbors
C.sea rocket grows aggressively alongside its siblings
D.sea rocket is a kind of bush without flowers
5.How can the plants communicate with each other according to experts’ suppose?
A.Plants communicate by using tiny chemical signatures specific to each plant’s family.
B.Plants communicate with each other through their roots.
C.Plants communicate with each other by their leaves.
D.Plants communicate with each other with their flowers.
查看答案和解析>>
科目:高中英語 來源:2014屆江蘇省淮安市高一第一次調研英語試題 題型:單項填空
Though lacking________, the young teacher manages the class very well.
A .experience B. experiences
C. experienced D. experiencing
查看答案和解析>>
湖北省互聯(lián)網違法和不良信息舉報平臺 | 網上有害信息舉報專區(qū) | 電信詐騙舉報專區(qū) | 涉歷史虛無主義有害信息舉報專區(qū) | 涉企侵權舉報專區(qū)
違法和不良信息舉報電話:027-86699610 舉報郵箱:58377363@163.com