题目

海洋生态系统中，数量最多的是（ ）A. 浮游植物 B. 小鱼小虾 C. 鲸 D. 海带 答案：【答案】A【解析】海洋生态系统由海洋生物群落和海洋环境两大部分组成海洋中的植物绝大部分是微小的浮游植物。浮游植物属于生产者，小鱼小虾、鲸等是动物，属于消费者。食物链的开始是生产者，由于在生态系统中能量沿着食物链传递是单向、逐级递减的，因而食物链最前端的生物数量要多于后完形填空 　　It was Sunday morning. Mrs. Black ___1___ her windows and looked out.“___2___ a beautiful day!”She said. She waked her little son up and told him,“Get up, Peter. We ___3___ going to the zoo today. Wash your hands and face, and have your breakfast quickly. We are going ___4___ a bus.”Peter was very ___5___. He liked going to the zoo very much. There were ___6___ monkeys in the zoo. Peter liked to watch the monkeys. He also liked to watch them ___7___. So Peter got out of bed quickly and said to his mother,“Let's go at once, ___8___?”“Why don't you ___9___ your breakfast?”his mother asked.“I'm going to have breakfast ___10___ the monkeys. Look! These are cakes and bananas,”Peter answered. (1) A．open B．opened C．opens D．opening (2) A．What B．How C．Very D．Quite (3) A．is B．was C．am D．are (4) A．to catch B．catch C．catches D．catching (5) A．sorry B．sad C．happy D．angry (6) A．a little B．much C．a lot D．lots of (7) A．to eat B．eating C．eats D．are eating (8) A．are you B．do you C．shall we D．will you (9) A．have B．has C．take D．carry (10)A．for B．with C．from D．to