一写出 在一般现在时中, 当主语是单数第三人称时, 行为动词的形式是在词尾加 -s 或–es具体方法如下: 1.一般情况下,直接加 -s eg. works, plays, rains, sees 2.以sh, ch, s, x 或o结尾的词后加 –es eg. washes, teaches, fixes, does, goes 3.以辅音字母加 -y 结尾的,先把 ‘y’ 改成 ‘i’, 再加 -es eg. studies, flies, carries 注意: 动词加 -s 以后的读音. 动词加-s后的读音 1.在[p] [t] [k] [f] 等清辅音后, 发清辅音 /s/ eg. helps , works, likes, hates ,laughs 2.在浊辅音和元音后, 发浊辅音 /z/ eg. drives, cleans, plays 3.在[s] [z] [∫] [t∫] [ [d?]后, 发/iz/ rises, wishes, teaches, urges 4.在[t] [d]后,发/ts/ /dz/ eg. fits, sets, needs 5. 其他情况下发[z] eg. plans, cries, shows 三、 一般现在时的用法: 1、表示经常、反复发生的动作,现存的习惯或状态。常与often, always, usually, every day, sometimes, never, once a day, seldom等时间状语连用。例如: I am a teacher. We are Chinese. She goes to work every day. He always helps others. 2、表示客观事实或普遍真理。例如: There are seven days in a week. The earth goes round the sun. The sun rises in the east and sets in the west. The water boils at 100℃. Actions speaks louder than words. 行动胜于言辞。(谚语) 3、在连词when, before, if, as soon as, until 等引导的表示将来的行为的状语从句中,常用一般现在