3)cut off表示"切下来,剪下来"。如:

She cut off a small piece of bread and gave it to me.

她从面包上切下一小块,给了我。

4)含有cut的短语归纳:

cut in 插嘴,干预

cut into 插进来,参加谈话

cut out 删掉,停止

cut through穿过,穿透

cut up切碎,使痛苦

cut down砍倒,消减,减少

cut across 抄近路穿过

cut sb.short 打断某人(的话)

cut sth.short 剪(切、割等)短某物;使某事缩短;使某事中断

star in担任主角;主演

【经典例句】He starred in dozens of films during his lifetime.

他一生主演过几十部电影。

【考点聚焦】1)同义词组:play the lead in

2)star也可作及物动词,"以......为主角"。如:

The director wanted to star her in the new film.

导演想让她在这部新影片中担任主角。

【活学活用】 11.翻译句子

张柏芝在这部电影中担任主角。

__________________________________

答案：Zhang Baizhi stars in this movie.

knock into 撞上;撞见

【经典例句】The car knocked into him before he knew it.

在他意识到之前,汽车撞上了他。

He knocked into his teacher in the street yesterday.

昨天在大街上他偶然遇到了他的老师。

【考点聚焦】 1)同义词组:bump into,run into,come across表示"(偶然)遇见",还可用以下形式表达:happen to meet...,meet...by chance,chance to meet...

2)含有knock的短语归纳:

knock at/on 敲(门、窗等)

knock down 撞倒

knock over 撞翻

knock off停止

knock around/about 游历,讨论

knock back喝下(酒精饮料) 

【活学活用】 12.用以上短语填空

1)The old man _________ the door but no one answered it.

2)I ran so fast that I _________ a child who was running fast too.

答案：1)knocked at/on　2)knocked into