“特别疑问词＋动词不定式〞的用法归纳 一．由两局部构成：疑问词和动词不定式〔wh-+to do〕。疑问词局部包括疑问代词 who, whom, what, which 和 whose 以与疑问副词 when, where 和 how。此外，连接词“whether〞也适用.它 主要具有以下几种功能： ⑴当主语，如： ● When to hold the meeting has not yet been decided. ● Where to live is a problem. ⑵ 当宾语，常接在 forget, find out, discuss, decide, tell, teach, know, learn, wonder, remember 等动词之后作宾语如： ● We must know what to say at a meeting. ● He could not tell whom to trust. ● Do you know how to play bridge? ⑶当表语，如： ● The problem is where to find the financial aid. ● The question is who to elect. ⑷ 当名词同位语，如： ● Tom had no idea which book to read first. ● The question whether to confess troubled the girl.⑸ 用于宾语补足语,双重宾语。某些动词后可接“sb.+ 疑问词 + 不定式〞构成的双重宾语，这类动词常用的有 advise, ask, show, teach, tell 等如： ● I can tell you where to get this book. ● I ask her how to learn English.● He will advise you what to do.● Will you show me how to use the machine?(6) 作介词宾语：某些介词后面可接"疑问词＋不定式"作宾语，这类介词常用的有 about, as, from, in, of, on, with 等。例如：He has no idea of how to answer this question. 他不知道怎样答复这个问题。 Della had only $1.87 with which to buy Jim a present. 德拉仅有$1.87 为来吉姆买一件礼物。(which 是关系代词) You have a number of topics from which to choose. 你有很多题目可以选择。(which 是关系代词)二“特别疑问词＋动词不定式〞这种结构可以把复合句转为简单句。如： I don’t know what I’ll do next. = I don’t know what to do next. The doctor told him when he should take the medicine. = The doctor told him when to take the medicine. 同样，因为“特别疑问词＋动词不定式〞这种结构相当于一个名词性从句，...
