2.If you saw a father patting his son on the back while smiling happily, what would you think was going on?

如果你看到一位父亲愉快地微笑着拍他儿子的背部，你认为会发生什么事？ ①v.＋sb.＋介词＋the＋身体部位。

②状语从句的省略。 ①The branch whipped back and hit_me_in_the_face.

那树枝突然弹回打在我的脸上。

②I was so tired that I fell asleep while_reading_newspapers.

我很劳累，以至于看报纸时睡着了。 3.You would know what was going on because you understood the message conveyed by the father's body language.

你知道发生的事情是因为你明白父亲的肢体语言所表达的信息。 过去分词作后置定语。 The film Wolf Warrior Ⅱ directed_by_ Wu Jing attracted many audience.

由吴京导演的影片《战狼Ⅱ》吸引了许多观众。 4.Somebody jumping for joy is easy to see while a raised eyebrow conveying doubt is easier to miss.

某人高兴地跳跃是容易看到的，而挑起眉毛表示怀疑却更容易被人忽略。 主语＋be＋adj.＋不定式。 The chair looks rather hard, but in fact it is_very_comfortable_to_sit_on.

这把椅子看上去很硬，但事实上坐在上面很舒服。 　　

　　1．(教材P9)The more you hear different accents, the easier it is to catch on.

　　你听到的口音种类越多，你越是感到容易理解。

　　catch on

　　(1)学会，理解，领会(常与介词to连用)

　　①It took her a while to catch on to what we meant.

　　她想了一会儿才明白我们的意思。

　　 (2)逐渐流行，逐渐受欢迎(常与介词with连用)

　　②The peasant­singer has caught_on_with lots of people all over China.

那位农民歌手已受到全中国许多人的欢迎。