課本中不會教你的[G]319　be good at，be good to，be good for和be weak in

319　be good at，be good to，be good for和be weak in

① be good at意為“擅長，長于”，相當于 be strong in。

He is good at figures. 他善于計算。

She is good at music but poor in drawing. 她擅長音樂，但拙于繪畫。

This cat is good at catching rats. 這只貓很會捉老鼠。

I am sure she will be very good at her major. 我堅信她的專業(yè)課會學得很不錯的。

② be good to意為“對……好，對……態(tài)度好；在……方面好”。

Chicken soup is good to the taste. 雞湯的味道好。（=Chicken soup is nice to taste.）

A father should be good to his children. 父親對孩子應該慈愛。

③ be good for意為“有益于；對……有效；勝任”。

It is good for the health to take a walk in the morning. 清晨散步有益于健康。

This licence is good for one year. 這張執(zhí)照有效期是1年。

The little boy is good for another two miles. 這小男孩還能再走兩英里。

提示

①be good of sb. to do sth. 表示“某人做某事好……”。

It is good of you to help me out. 多謝你幫我渡過難關。

②同at連用的短語：

be bad at 拙于……

be clever at 善于……

be quick at敏于……

be slow at 拙/鈍于……

be poor at拙于……

④ 同in連用的短語：be skilled in，be skillful in，be adroit in，be dexterous in，be proficient in等，表示“熟練于……，擅長……，精通于……”。但be weak in表示“弱于……”。

Henry is proficient in most sports. 亨利擅長大部分運動項目。

He is weak in grammar. 他語法知識差。