I have1good friend and his name is Jack. Here are his2about his life in twenty years. Jack will be a policeman in twenty years because he thinks it's an exciting job. He will live and work3Beijing, because it's a very beautiful city and he likes it very much. He4taller and stronger and he will have short straight hair. In his free time, he will play5sports to6. He will play tennis every day and he will go swimming and skating on weekends. He will7smart clothes like uniform. Jack will have a happy family. Maybe he will have two8. They will be lovely and cute and he will love them very much. Now he9and tries his best10his predictions come true.

读图3—1—5，完成下列问题。
（1）你能用几个数字说明地球的大小吗?____ 。

（2）根据图中数据，你能准确描述一下地球的形状吗?____ 

。

阅读图文资料，完成下列要求。

沱江是长江上游支流，沱江全长629km，沱江的发源地是四川盆地西北缘的九顶山，沱江大千玉产于沱江河床，经河水和砂石的冲击、磨涮，留下玉料中的精华，秋季是最佳采玉季节。流域内人口密集，工农业发达，是四川污染最严重的河流。下表示意四川全省和沱江流域及周边地区主要城市2013年的产业结构，图为沱江流域及周边地区示意图。

表：

以下各种关系中，描述消费者和生产者之间关系的是（　　）