4.主语后有 with, along with, together with, as well as, more than, including, besides, like, except, but.　 谓语动词由前面的主语决定.

　　 Mr Li with his wife and children is coming next week.　　　 Tom besides his friends plays volleyball every afternoon.

3.由each, every引导的作主语，指同一个人时，+V三单　 Each boy and girl was given a gift.

2.不定代词作主语+V三单(either, neither, each, the other, another, any/every/no/some引导的不定代词) Everyone is going to beach tomorrow.

1.当and或both …and… 连接两个或三个名词作主语，谓语动词用复数。　　　　 Both you and I are good friends.

　　　 adj / adv + enough　 足够。。。样　　　 enough + n　 足够的。。。

　　　　　 forget to do / forget doing　　　　 try to do / try doing

　　　　　 go on to do / go on doing　　　　　 allow to do / allow doing

have trouble/problem/difficult/ a hard time, permit, spend, be worth, keep on, keep,

be used to, continue, give up, put off, end up, pay attention to, look forward to,

consider, suggest, can’t help, miss + doing sth

feel, hear, see, find, watch, notice sb do sth (做过)

doing sth (正在做)

(1)provide sb with sth = provide sth for sb.

He tried to find a job to provide his family with food.　 He tried to find a job to provide food for his family.

(2) offer sb sth = offer sth to sb.　 She offered money to the poor children.

　 offer to do sth 自愿做某事

　　　 条件状语从句，由if,　 unless 引导。　 (主将从现， 主过从过)

　　　 If it doesn’t rain, we’ll go fishing.　 Unless you see a doctor, you shouldn’t take the medicine.

　　　 Sth costs(cost)……　　　　　　　　　 The TV cost me 500 dollars

　　　 Sb spend (spent) ….. on sth /doing sth　　 I spent 500 dollars on the TV.

　　　　　　　　　　　　　　　　　　　　 I spent 500 dollars buying the TV.

　　　 Sb pay (paid) …. For…　　　　　　　　 I paid 500 dollars for the TV.

　　　 It takes (took) sb ….. to do sth.　　　　　 It took me 500 dollars to buy the TV.