语法互动(十一)┃非谓语动词
4.作状语 Laughing and talking, they went into the room. 他们有说有笑地走进了房间。 5.现在分词与过去分词的区别 (1)语态上,现在分词表示主动之意,过去分词表 示被动之意。 如: the surprising news 令人惊讶的新闻 a surprised boy 一个受惊吓的男孩 (2)时间上,现在分词表示正在进行的动作,过去分词表 示已经完成的动作。 如: the developing country 发展中国家 the developed country 发达国家
语法互动(十一)┃非谓语动词
6.易混结构 使役动词(make, keep, let, have等)易混结构的区分。如 have sb doing sth 与have sth done 的区别: (1)have sb doing sth 意为“让某人一直做某事”, doing这 个动作具有持续意义。如: The teacher had the boys standing all day. 老师让男生罚站了一整天。 (2)have sth done 意为“让某人做某事”,相当于ask sb to do sth, done 表示让他人完成,有被动之意。如: I had my computer repaired yesterday. 昨天我让人修理了我的电脑。
语法互动(十一)┃非谓语动词
3.作宾语补足语 (1)后面能接带to的不定式作宾补的动词有 tell,ask, allow,want,help,wish,teach,warn,invite,would like, encourage等。如: The teacher told us ____to__d_o___ Exercise 1. 老师要我们做练习一。 (2)使役动词let, make, have和感官动词see,hear, watch, notice, feel, find等后要用不带to的动词不定式作宾补。但是 ,当上述动词变被动语态时,其后的不定式必须补上to。如 : We often hear her sing. 我们经常听见她唱歌。 被动语态: She is often heard to sing.