think 是不及物的.如:I think (that) I want to be a teacher in the future.而think of 是及物的,如:I think you'd better think of the case teacher mentioned yesterday.
Work可以做名词也可以做动词.作名词时候,意思为艺术品、产品、工作.可数或不可数的情况都存在,如:I love all the works created by Vinci.（可数）又如:Just do your work and be quiet.作动词时不及物:I work in that factory and I work for the boss called Jacob.
Few 和 a few 所形容的对象为可数单位.a few义为少许,少量.如:A few tomatoes are enough for the ketchup.few义为极少,几乎没有.使用时可理解为没有了,表示否定.如:Few seats are left.（没有座位了）.
Several义为一些,几个.通常指3-7个.后接可数名词,如:I am going to buy several apples.
Nothing最直接的意思即为没、无,如:nothing is wrong.也可译为无关紧要的事,如:It has nothing to do with me（这与我无关）.Have nothing一无所有,do nothing无所事事.反义词everything.
不清楚的地方欢迎追问~
再问： wait的句式是什么？
再答： wait for sb/sth 等待某人或某事 wait sb to do sth 等待某人做某事 wait a moment /wait a second 固定搭配译为稍等片刻
