题目内容
—Which kind of juice would you prefer, pineapple or orange?
—_____. I must say I’ve a strong preference for tea.
- A.Both
- B.None
- C.Neither
- D.Either
试题分析：考查代词用法。Both表示两者都；none表示三者或者三者以上都不；neither表示两者都不；either表示两者中的一个；句意：—菠萝汁和橙汁，你更喜欢哪一个？—我都不喜欢。我更喜欢茶。根据句意说明C正确。
考点：考查代词用法
点评：本题的四个代词都是常考的代词，要注意辨析Both表示两者都；none表示三者或者三者以上都不；neither表示两者都不；either表示两者中的一个；
名校课堂系列答案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(猜测) that plants communicate through their roots, identifying themselves using tiny chemical signatures specific to each plant’s family.
【小题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. |
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From: |
<joseph_yana@orange.net> |
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IP Address: |
193.252.22.118 (originates from France) |
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Date: |
Mon, 02-Feb-2011 09:37:04am |
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Attachment: |
(No attachment) |
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Subject: |
[G-Spam] PLEASE REPLY BACK. |
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Message: |
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CONFIDENTIAL BUSINESS PROPOSAL. FROM THE DESK OF: MR. JOSEPH YANA. AFRICAN DEVELOPMENT BANK (ADB) BURKINA-FASO. Dear Sir / Madam, I am the Bill and Exchange (assistant) Manager of the African Development Bank, MR. JOSEPH YANA. In my department I discovered an abandoned sum of USD$9.900.000 in an account that belongs to one of our foreign customers who died along with his wife and two children in July 2002 in a plane crash. Since we got information about his death, we have been expecting his next of kin(近亲属) to come over and claim his money, but unfortunately we learnt that all his supposed next of kin or relation died alongside with him in the plane crash leaving nobody behind for the claim. It is therefore upon this discovery that I in my department now decided to make this business proposal to you and release the money to you as next of kin or relation since nobody is coming for it and we don't want this money to go into the bank treasury as unclaimed fund. The banking law and guidelines here says that if such money remains unclaimed after ten years, the money will be transferred into the bank treasury as unclaimed fund. The request of the foreigner in this transaction（办理） is necessary because our late customer was a foreigner. We agree that 30% of this money will be for you as foreigner partner, 5% will be set aside for expenses incurred during the business and 65% would be for me, after which I shall visit your country for disbursement(开支) according to the percentages indicated. Therefore to enable the immediate transfer of this fund to you as arranged, you must apply first to the bank, and send your account number, your private telephone and fax number for easy and effective communication and location where the money will be sent. Upon receiving your reply, I will send to you by fax or e-mail the text of the application which you shall retype and fax to us. Trusting to receive your urgent reply through my alternative Email : jyana96 @ yahoo.com.id Best regards. MR. JOSEPH YANA. |
1. A foreigner who receives this letter should ________.
A. be a close relative of the dead.
B. send hundreds of dollars to Africa
C. go to African Development Bank for the wealth
D. not take it seriously.
2.Which of the following is true according to the text?
A. Many millionaires died in the plane crash.
B. Any money unclaimed will be given to a poor foreigner.
C. the division of the money seems quite reasonable.
D. AFRICAN DEVELOPMENT BANK doesn’t exist at all.
3. A person who believes “__________” will fall into it.
A. Nothing ventured, nothing gained. B. There's no such thing as a free lunch.
C. All rivers run into the sea D. A short cut is often a wrong cut