阅读理解

    I have five children．I'm always busy when they're awake(醒着)．That's why I try to get up before everyone else．I get up at 5：00 am．The house is quiet．I drink a cup of coffee and read books．I love that time because it's mine and I can think without interruptions(打扰)．

    —Anna

    I'm a night person．I love the night．I feel sleepy all day and then at night I wake up(醒来)!I like to dance，watch movies or talk to friends at night.I never go to sleep before 2：00a.m.

    —James

    I'm a morning person．As soon as a little light comes through the window,I wake up and start my day．I try to do important work in the morning because I know that I think best at that time．After 1：00pm，I begin to slowdown!

    —Sandra

    I love tea time．I like to have tea in late afternoon．It's a time to stop the day's activities (活动)for an hour and talk with friends．Sometimes,people visit my home-then．Sometimes，I go to a friend's house for tea．

    —Bob

根据材料内容选择最佳答案。

综合性学习。

文韬中学将举行“成长的足迹”系列活动，请你参加。

负责调节人体体温和水盐平衡的神经中枢位于（  ）

近日，杨某收到一条手机短信，内容充斥着侮辱、漫骂和恐吓，给杨某造成了极大的精神痛苦和刺激。有人建议实施报复，而杨某用法律手段来解决。后来，法院判决短信发送人向杨某赔礼道歉，并赔偿精神损失费500元。该短信发送人的行为  （     ）
①侵犯了公民的名誉权                   ②是应该受到谴责的不道德行为
③侵犯了公民的人身自由权              ④是触犯法律的违法行为 

设集合$M=x|0<x\le 3\},N=\left\{x\right|0<x\le 2\}$，那么$a\in M$是$a\in N$的（ ）