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。
求采纳，不清楚的地方欢迎追问~~~
wait的句式是什么？
追答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
干嘛这样说？小弟第一次学将来时