重点

1.Have you ever …？你曾经…过吗？

eg. Have you ever seen shark?

你见过鲨鱼吗？

eg. Have you ever been to New York?

你去过纽约吗？

2.appreciate

vt. 欣赏，重视

eg. You are too superfacial to appreciate great literature like this.

你太肤浅，欣赏不了这种文学巨著。

vt. 感谢

eg. I appreciate it.

非常感激。

vt. 意识到，体会

eg. I really appreciate the danger of this job.

我真的认识到了这份工作的危险。

vi. （使）增值，涨价

eg. Gold has recently appreciated and will continue appreciate in the months ahead.

黄金最近涨价了，在今后几个月里还要持续上涨。