置顶 备考复习丨 “疑问词+不定式”结构
SEO摘要:疑问词如who, whom, what, which(及物动词或短语后必接),when, how, where等,在句子中可充当主语、宾语和表语,相当于名词时可写成从句。例如,“I am not sure how to behave at the dinner table”,其中“how”引导的不定式结构作表语。疑问代词在不定式中做主语时除外,如“I don’t know what to talk about”和“We haven't decided who/which to go”。疑问副词则需接不及物动词,若接及物动词需有宾语,如“I don't know how to talk”和“I wonder if you could tell me how to do it”。