B

    Alice Brown lives in New York with her mum and dad and her two brothers, Tony and Peter. The family has got two dogs, a cat and four rabbits. Alice likes cats and rabbits but her brothers like dogs. Alice's dad works in a hotel. He's a hotel manager. Her mum teaches English at a Junior High School.

    Alice and her brothers study at the same school, but they are in different grades. She's in Grade Seven. Her brother Tony is in Grade Ten and Peter is in Grade Six. They live in a house near the school. They go to school on foot every day.

    Alice is interested in computers. At home she plays computer games in her free time.

若存在实数 x 使$\left|x-a\right|+\left|x-1\right|\le 3$  成立，则实数 a 的取值范围是____.

现代，“人”高度发达、全面发展，却存在一种普遍的现象：能够做的事而不去做。有人认为：能够做的事就应该去做。

请写一篇文章，谈谈你对上面材料的思考。

要求：（1）自拟题目；（2）不少于800字。（3）文体不限，诗歌除外。