(1)cause and effect 因果关系

　　(2)cause sb.sth. 给某人带来某事

　　cause sb./sth.to do sth. 导致某人/某事做......

　　①I hope the children haven't caused you too much trouble.

　　我希望孩子们没有给你招来太多的麻烦。

　　②According to a recent research, heavy coffee drinking and heart attack are not necessarily cause and effect．

　　最近一项研究表明，饮过量的咖啡与心脏病并没有必然的因果关系。

　　③What caused him to change(change) his mind?

　　是什么使他改变了主意？

　　 occur vi.发生，出现；想起

　　(教材P23)Almost all of them occur in the US, in the area from Texas in the southeast to South Dakota in the north.

　　几乎所有的龙卷风都发生在美国东南部德克萨斯州到北部南达科塔州一带地区。

　　sth.occurs to sb. 某事浮现在某人的脑海中；某人想到某事

　　It occurs to sb.that.../ to do sth.... 某人突然想起....../做某事

　　①When he was walking in the street this morning, a new idea occurred to him.

　　今天早晨他在街上散步时突然想到了一个新主意。

　　②It never occurred to me to meet (meet)my first teacher in the small town.

　　我从来没想到会在这座小镇上见到我的启蒙老师。

　　③It occurred to me that I had left the umbrella upstairs.

　　我想起我把伞忘在楼上了。

pick up 卷起，掀起；拾起，捡起；收拾，整理；(偶然)学会；用车接某人；收听到；身体好转；加速；恢复；(碰巧或廉价地)买到