任务型阅读
My friend, Tom lives a happy life.（1）He usually gets up at 6:00 . Then he goes for a walk. At 7:00 he comes back. He brushes his teeth and takes a shower. （2） Then he eats breakfast. After breakfast, he goes shopping（购物）with his friends. （3）他大约十点半到家。And he cooks lunch. After lunch, he goes to the club. He reads books and plays chess. He eats dinner at home at 6:00 pm. （4） the evening he likes watching TV. At around 9:00 pm he goes to bed.
根据短文内容，完成下列任务
2Z2在反应过程中的反应速率（V）与时（t）的关系曲线，下列叙述正确的是