a. 冷嘲的, 挖苦的, 反话的, 讽刺的, 令人啼笑皆非的, 出乎意料的相关词组: It was ironic that he should...

iron/ironic/steel/steal/rob/aluminum/rub/rubber/rubbish/plastic
记忆：
1. iron [ 5aiEn ] n. 铁, 熨斗 v.熨 You’d better iron your crimpled coat with his iron. 你最好用他的熨斗把你皱了的外套熨一下。
2. ironic [ aiE5rCnik ] adj. 说反话的, 讽刺的 I smiled at his ironic words. I thought he had just misunderstood me.听了他讽刺的话，我笑了一笑，我想他已经误会我了。
3. steel [ sti:l ] n. 钢, 钢铁 The new bridge is made of steel.新大桥是用钢造的。
4. aluminum [ E5lju:minEm ] n. 铝 The use of aluminum makes our planes much lighter.铝的使用使我们的飞机轻多了。
5. steal [ sti:l ] v. 偷, 窃取 Oh, my God! My purse has been stolen! 噢，天！我的钱包被盗了。 注意：steal something from someone
6. rob [ rCb ] v. 抢夺, 抢掠, 剥夺 注意： rob someone of something It’s reported that the bank was robbed of two million dollars.据报道，这银行被抢了二百万美元。
7. rub [ rQb ] v. 擦, 摩擦 The mother rubbed her leg twice a day, hoping to help her leg recover sooner.母亲每天为她擦两次腿，希望能帮助她尽快恢复。
8. rubber [ 5rQbE ] n. 橡皮, 橡胶 I need a rubber to remove these words. 我要一把橡皮擦来擦掉这些单词。
9. rubbish [ 5rQbiF] 名词后缀-ish表示的（人、物）， rubbish,被擦掉的东西，n. 垃圾, 废物, 废话 It’s not right to throw rubbish everywhere.乱扔垃圾是不对的。
10. plastic [ 5plAstik, plB:stik] n. 塑胶, 可塑体, 塑料制品 Can you imagine a plane completely made of plastic?你能想象得到一部完全用塑料做的飞机吗？
另类阅读：
It’s ironic that the iron hearted man tried to steal the steel and rubber so that he could help those picking out in the rubbish.