题目

阅读下面两篇短文，根据短文内容,从A、B、C三个选项中选出可以填入空白处的正确答案。 Weekend is very importantto people. How to have a good weekend? Our ideas will help you enjoy theweekend, and it will help you to face a new week. Start 1. Weekends are so nice whenthey don't start quickly. People love to stay in bed, have breakfast in pajamas(睡衣), and watch cartoons, read books or talk. Allyou 2is to do some relaxingthings. Spend time3. Get out of the house inmid-morning. People can go to the park, the library, the museum, the swimmingpool and the zoo. 如图为生态系统物质循环示意图，其中甲、乙、丙分别代表三类不同的生物。下列有关叙述正确的是（　　）A. 图中丙是生态系统的最重要的部分B. 图中的甲是分解者C. 图中的甲、乙、丙可构成一条食物链D. 图中的生物成分和大气可构成一个生态系统