1,beat和defeat属一组同义词，它们的宾语必须是人或一个集体，如a team, a class, an school, an army。

defeat尤指在战场上打败敌人；beat是游戏、比赛的专门用词。二者常可换。

 eg:

We beat their team by 10 points. 我们赢了他们队十分。
In the end their army was defeat/beaten. 最后他们的部队被击（打）败。
2,win和gain属一组同义词。Gain表示获得需要之物，它常跟的宾语有one’s living, experience, strength, time, knowledge, attention, respect, admiration 等；win表示在较强的竞争中取得胜利，它常跟的宾语有game, war, prize, fame, battle等。

eg:
We shall gain experience through practice.我们将通过实践获得经验。
They won the battle but lost many men. 他们取得了这次战斗的胜利，但牺牲了很多人。
3,beat 强调连续或反复地“打”，因此像心脏跳动、打鼓、打拍子等之类具有连续性或反复性的动作，一般要用 beat。如：
My heart beats fast. 我的心跳得很快。
Who is beating the drum? 谁在击鼓?
She was beating the dust out of the carpet. 她在敲打地毯上的灰尘(以敲打的方式除尘)。
hit指“打中”或“对准……来打”，表示有意或无意地打或撞等，往往含有重重一击或用力敲打等之意。如：
He hit her hard in the face. 他重重地打了她一耳光。
The car ran out of control and hit a tree. 汽车失去控制，撞在树上。

The stone hit him on the head.石头击中了他的头部.

tap/pat一般是轻轻拍打的意思。eg:

He tapped the box with a stick.

Who's that tapping at the windows?

He always pats the child on the head.

名题赏析： We them in the game last Sunday and finally　the match. A. defeated;won B. won;won C. beat;defeated D. won;beat　 A. defeated;won B. won;won C. beat;defeated D. won;bea

分析： the match 表示“比赛”，因此前面用win。 them表示“对手”，因此前面用defeat或beat。 答：答案为A。