东莞市松山湖是一个包括湿地生态系统、农田生态系统、次生林生态系统以及城市生态系统等生态自然环境保持良好的区域。某研究机构对松山湖地区开展了为期一年的生态系统调研活动，请回答调研中的有关问题。
下图1表示次生林生态系统中构成一条食物链的甲、乙、丙、丁4个种群的数量变化，则该条食物链是（）；甲种群在c处的年龄组成类型是（）。
参考答案：丁→乙→甲→丙；增长型
任务型阅读 (本题有5小题，每小题1分，共5分 ) 阅读下面5段语言材料，从A到F选项中，找出与它们相对应的标题，并将答案的字母编号填在题前的括号内。 1.Living in another country can help you to learn a language, and about another culture. Many companies today need employees (雇员 ) who can speak a foreign language, or have the experience of living or working in another country. 2. Most people want to be happy. But few know how to find happiness. Money and success alone do not bring lasting happiness. Happiness depends on ourselves .In other words, we make own happiness. 3. “No man is an island” is a well-known line from John Donne’s Devotion, written more than three hundred years ago. Even now people still agree with him. No one can live a completely isolated life. Without other people, life became empty and sad. We all need friends. 4. When he was 18 years old, he wanted to go to film school so that he could improve his skills and become an even better director. Unluckily, he was unsuccessful in getting a place at this school so he went to a university in California to study English. Even though he had failed to get into the school he wanted to go to, he didn’t let this stop him following his dream to become a great director. 5.Which type of food will make a difference if you want to keep fit? If you eat more carbohydrates(碳水化合物 ) and proteins (蛋白质) ,your body will be pleased. If you eat too much fat and sweet, your muscles ( 肌肉) will start to break down.
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