n. 内部的人, 权威人士, 知道内情的人【经】 熟悉内情者

◆记忆方法一：
词根词缀记忆法：insider n 局内人（inside内部）,“er”表名词，“…人”

inside/insider/outside/outsider/aside/beside/besides/side/effect/preside/president
记忆：
1. inside [ 5in5said] n. 里面, 内部, 内情 adj. 内部的 Some houses are grand inside.一些房子里面很气派。
2. insider [In5saIdE(r)] n. 内部的人, 会员, 知道内情的人 An insider took those pictures with a DC. 一个知情者用数码相机拍了那些照片。
3. outside [ 5aut5said ] n. 外面, 外表, 外界 adj. 外面的 There is nothing special outside.外面没有什么特别的东西。
4. outsider [ 5 aut5saidE ] n. 外人, 外行, 局外人 You can fool an outsider, but you can’t fool me.你可以捉弄外行，但你骗不了我。
5. aside [ E5said] adv. 在旁边, 到旁边 Put the things aside. Don’t allow them to be in the way.把东西放到一边去，别让他们挡了道。
6. beside [ bi5said ] prep. 在旁边, 和...比较 Come over and sit beside me.过来坐在我的身边。
7. besides [ bi5saidz ] adv. 此外 prep. 除...之外 Besides, whether the weather is fine is not known yet. 此外，天气好不好还不得而知。
8. side [ said ] effect n. (药物等的)副作用 Any medicine has some side effect.见药三分毒。
9. preside [ pri5zaid ] pre-side 在前边， 主持会议、工作等， v. 主持 Mr. Wang presided the meeting.王先生主持了会议。
10. president [ 5prezidEnt] n. 总统, 会长, 校长 The president was killed in a plane crash.总统在飞机失事时去世了。
另类阅读：
The president went inside the room and threw outside .the pills that had side effects. Besides, he pushed the directions aside which he thought of little use.

轻松一刻
"I can always tell a graduate class from an undergraduate class," observed the instructor in one of my graduate engineering courses at California State University in Los Angeles. "When I say, 'Good afternoon,' the undergraduates respond, 'Good afternoon." But the graduate students just write it down."