a  你打过高尔夫球吗？

　　b  only once.  it’s quite difficult!

　　b  只打过一次。太难了!

　　a  we could try it next weekend.  i have a friend who knows a good club.

　　a  我们下周末可以去试试。我有个朋友知道一家不错的俱乐部。

　　b  ok,  i’m happy to try again.  but i tell you, i’m not very good.

　　b  好，我很高兴可以再尝试一次。但是，我告诉你，我打得不好。

　　a  that’s not a problem.  let’s have a game next weekend.

　　a  这不是问题。我们下周末去玩。

　　b  well, i suppose it’s good practice.

　　b  哦，我想这是一次很好的练习。

　　a  exactly.  and it’s good exercise, walking on the golf court.

　　a  的确。这是很好的锻炼，在高尔夫球场上行走。

　　b  that’s true.  better than being stuck in the traffic jam!

　　b  的确如此。比陷在交通阻塞中好多了!

　　notes  注释

　　1 if you want to ask someone if they have ever done something, use have you ever . . . ?  / have you ever . . . ? e.g. have you ever played golf? / have you ever played golf?; have you ever been to shanghai ? / have you ever been to shanghai? ; have you ever visited new york? / have you ever visited new york?

　　如果你要问某人是否做过某事，可以用have you ever . . . ?  / 你…过吗？例如：have you ever played golf? / 你打过高尔夫球吗？； have you ever been to shanghai ? / 你去过上海吗？； have you ever visited new york? / 你去过纽约吗？

　　2 to talk about how many times you have done something, you can say various things, e.g. once / once - one time / one time; twice / twice - two times / two times. e.g. i’ve played golf only once. / i’ve played golf only once.  i’ve been to shanghai twice. / i’ve been to shanghai twice.

　　要说明你做某事的次数，你可以用几种表达方法。比如：once / 一次 - one time / 一次； twice / 两次 - two times / two times。例如：i’ve played golf only once. / 我只打过一次高尔夫球。 i’ve been to shanghai twice. / 我去过两次上海。

　　3 you can use who / who to describe something about somebody, e.g.  i have a friend who knows a good club / i have a friend who knows a good club; i have a friend who is a teacher / i have a friend who is a teacher.

　　你可以用who / 谁（他，她）来修饰某人关于某事，例如：i have a friend who knows a good club /我有个朋友知道一家不错的俱乐部； i have a friend who is a teacher /我有个朋友是老师。