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问题 读图填空题

（5分）右下图为某一生态系统中的食物网简图，图中A－F分别表示不同种类的生物。请据图回答：

（1）此生态系统中生物体内的能量最终是来源于              。

（2）在此生态系统中，A属于生态系统成分中的            。

（3）E与D之间既存在竞争关系，同时还存在          关系。

（4）请写出此生态系统中，获取能量最多的这条食物链：                         。

（用图中字母表示）

（5）如果工厂排放的有害物质如铅、汞等进入此生态系统，这些有害物质可以通过食物链在生物体内不断积累，此生态系统中积累毒素最多的生物是      （用图中字母表示）。

答案

（1） 阳光或（光、太阳能）（太阳不给分）（2）   生产者 （植物不给分）     

（3）   捕食                      （4）     A→B→C （文字表述不给分）

（5）      F

生态系统中的能量最终来源于太阳，植物通过光合作用将光能转变成化学能储存在制造的有机物中，A是绿色植物，是生态系统中的生产者，E与D都以B为食，是竞争关系，同时E又以D为食，属于捕食关系，能量沿着食物链逐级递减，所以越短的食物链，获取能量最多，有害物质通过食物链积累，排在食物链最后面的有害物质含量最多。

阅读理解
阅读下面短文并回答问题。（请注意问题后的字数要求）
    [1] E-mail may be the most important, unique method for communicating and developing
relationships since the telephone. First of all, _____. Anyone who can use a word processor
can also write an e-mail message without difficulty. Secondly, it saves time and money. It
costs nothing more than your time. No paper expense, no postage, no envelope expense.
People find it familiar and safe because it is similar in many aspects to writing letters-but minus the annoyances
of addressing envelopes, licking stamps and trips to the mail box.
     [2] Of all the methods for developing relationships on the Internet, e-mail is the most common-and perhaps
the most powerful. Although friendship may indeed begin in chat rooms, instant messages, blogs or other
environments, these relationships almost always expand into e-mail as a way to deepen the communication. It is
a more private, more reliable, less messy way to talk. Even when other online tools improve greatly by becoming
more effectively visual and auditory (听觉的)-as in video tele-conferencing-e-mail will not disappear. Many
people will prefer it because it is a non-visual and non-auditory form of communication. After all, we don't see
people rushing out to buy video equipment to add it to their telephone, even though that technology has been
available for some time.
     [3]E-mail is not just an electronic mail sent via the internet. It creates a psychological space in which pairs of
people-or groups of people-communicate with each other. It creates a situation and boundary in which human
relationships can unfold.
1. What is the main idea of the text? (within 10 words)
    ______________________________________________________________________________________
2. Which sentence in the text can be replaced by the following one? People like e-mail better because it enables
    them to communicate even without seeing or listening to each other. 
    ______________________________________________________________________________________
3. Please fill in the blank in Paragraph l with proper words or phrases to complete the sentence. (within 8 words) 
    ______________________________________________________________________________________
4. Please list three other ways of communication. (within 15 words)
    ①___________ ②___________ ③___________
5. Translate the underlined sentence in Paragraph 3 into Chinese. 
    ______________________________________________________________________________________
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单项选择题

医疗机构按“专柜存放，专账登记、每日清点”管理的是

A．自费药品
B．麻醉药品
C．精神药品
D．毒性药品
E．贵重药品
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