【中考必备】广东省2017届中考英语总复习 第一部分 常用单词 词组用法辨析 第一节3课件

B. join C. take part in D. join in C ( )2. She ________ the Health Club. A. join B. took part in C. joins in D. joined ( )3. They all ________ singing the song. A. join B. take part in C. attend D. join in DD ★ 16. keep doing, keep on doing, keep sb . from doing, keep sb . doing 【辨析】 keep doing 和 keep on doing 均可表示“继续做某事;反复做某事”,可互换,只是 keep on 更加强调时间的间隔性和动作的反复性,以及某人做某事的决心。 keep sb . from doing sth . 意为“防止某人做某事”, keep sb . doing sth . 表示“使某人一直做某事”。 keep … from doing sth . 与 prevent … from doing sth ., stop … from doing sth . 用法相同,前者中的 from 不可省略,后两者在主动语态中 from 可以省略,而在被动语态中 from 则不可省略。