时态、语态需要掌握的要点：
1.以下几类动词一般不能用于进行时，同样不用于完成进行时：
(1)表示感知的动词：hear, feel, notice, recognize, see, taste, smell;
(2)表示意愿、情感的动词：desire, dislike, forgive, hate, like, love, prefer, refuse, want, wish, fear, love, hate;
(3)表示思考、看法的动词：believe, doubt, expect, forget, hope, www.med126.com feel, mean, know, agree, realize, mind, recall, recollect, remember, trust, suppose;
(4)表示所有、占有的动词：belong to, owe, own, possess, hold(容纳);
(5)其他动词：cost, appear, concern, contain, consist, deserve, matter, seem。
如：
I’d say whenever you are going after something that is belonging to you, anyone who is depriving you of the right to have it is criminal.
(1997年考研题， belong表示归属，不用于进行式)
He was seeing somebody creeping into the house through the open window last night.
(1990年考研题，see表示结果，不用于进行式)
2. 不用will/shall表达将来时的形式：
(1)be going to表示现在的打算和意图;
(2)arrive, come, drive, go, leave, retire, return, set off, start, take off等表示移位的动词的进行体表示按计划肯定要发生的将来动作;
(3)be to (do)表示安排、计划、决定、命令或注定要发生的事，如：
Greater efforts to increase agricultural production must be made if food shortage is to be avoided.
(4)be about to (do)表示将要(做)，如：
Marlin is a young man of independent thinking who is not about to pay compliments to his political leaders.
(5)be on the point /verge of (doing)表示“马上就要”，一般不与表示将来的时间状语连用;
