a. 高兴的, 快乐的

◆记忆方法一：
联想方式：delight（快乐；高兴）；ed（形容词后缀）
记忆方法：

glad/happy/pleased/delighted/joyful/gay/merry/sad/sorry/disappointed/upset/unrest
记忆：
1. glad [ ^lAd ] adj. 高兴的, 乐意的, 感到高兴的 How glad we are to return to our homeland!将要回到祖国了，我们好高兴啊！
2. happy [ 5hApi ] adj. 快乐的, 幸福的 Money can’t always make a happy man.钱并不能总让人快乐。
3. pleased [ pli:zd ] adj. 高兴的, 满足的 The president was pleased with the preparations for the conference to come next week.总统对下周要召开的会议的准备工作很满意。
4. delighted [ di5laitid ] de-light-ed adj. 欣喜的, 快乐的 When word came that our team won we were all delighted.当消息传来我们队赢了的时候，大家都感到欣喜。
5. joyful [ 5dVCiful ] adj. 快乐的, 兴高采烈的, 可喜的, 令人欢欣的 The joyful boy will bring a pleasant time to us.这个快乐的男孩将给我们带来一段愉快的时光。
6. gay [ ^ei] adj. 快乐的, 欢迎的 We were gay on May day.五一那天我们很开心。
7. merry [ 5meri] adj. 欢乐的, 愉快的 I wish you a merry Christmas.祝你圣诞快乐。
8. sad [ sAd] adj. 忧愁的, 悲哀的 The sad father sank to the chair, saying not a single word.悲伤的父亲坐到椅子上，一言不发。
9. sorry [ 5sCri ] adj. 遗憾的, 对不起的, 抱歉的 I’m sorry to hear that.听到这事我很难过。
10. disappointed [9dIsE`pRIntId] adj. 失望的 Mary was so disappointed that she swore she would never see him again.玛丽非常失望，她发誓不再见他了。
11. upset [ Qp5set ] vt. 颠覆, 推翻, 扰乱, 使不适, 使心烦 adj. 不适的，心烦的 The unexpected visit disturbed his plan, upsetting him a great deal.这意外的来访打乱了他的计划，他很不高兴。
12. unrest [ 5Qnrist ] n.不安的状态, 动荡的局面 When can the unrest in Iraq calm down?伊拉克的动荡局面何时能安定下来？
另类阅读：
I am glad to see they had a merry Christmas and happy New Year. My wife is also pleased to see that her parents were delighted to spend joyful days with the children. No one is disappointed or upset.

轻松一刻
Son: Mum, I got the fifth place this time.
Mum: Good boy. You have made rapid progress. I will cook you two eggs.
Son: Thanks, mum.
Mum: How many in all took part in the test this time?
Son: Five.