【材料一】锄禾日当午，汗滴禾下土。谁知盘中餐，粒粒皆辛苦。

【材料二】有关数据显示，我国消费者每年仅餐饮浪费的食物蛋白和脂肪就分别

达800万吨和300万吨，每年浪费食物总量折合粮食约500亿公斤，接近全国粮食总

产量的十分之一。即使保守推算，每年最少倒掉约两亿人一年的口粮。与此同时，饥

饿却仍是人类的头号杀手。全球平均每年有一千万人因饥饿丧生，每六秒就有一名儿

童因饥饿而死亡。

C

    Some children wish to be writers some day. They want to write stories or books for people to read. That's good! It's good to write something for people to read! But they should know that they need to be good readers first before they are really good writers. They should read a lot of books, instead(代替) of watching TV and spending a lot of time playing games when they are free.

    There is more fun in reading, and you want to look for more books to read.

    Before you decide(决定) to be a good writer, you'd better say to yourself, "I must read more and more!"

下列图象中，能反映自由落体运动规律的是（　　）