| 词组 | whether and if |
| 释义 | Contents overview whether and if261 whether and if1indirect questionsWhether and if can both introduce indirect questions.I'm not sure whether/if I'll have time.I asked whether/if she had any messages for me.After verbs that are more common in a formal style, whether is preferred.We discussed whether we should close the shop. (More normal than We discussed if …)In a formal style, whether is usually preferred in a two-part question with or.The Directors have not decided whether they will recommend a dividend or reinvest the profits.If an indirect question is fronted (272), whether is used.Whether I'll have time I'm not sure at the moment.2prepositionsAfter prepositions, only whether is possible.There was a big argument about whether we should move to a new house. (not … about if we should move …)I haven't settled the question of whether I'll go back home.3infinitivesWhether, but not if, is used before to-infinitives.They can't decide whether to get married now or wait. (not They can't decide if to get married …)4subject, complement and adverbial clausesWhen a question-word clause is a subject or complement, whether is normally preferred.Whether we can stay with my mother is another matter. (subject)The question is whether the man can be trusted. (complement)The question is if … is also possible, but less common.The question is if the man can be trusted.5not used in echo questionsIf and whether are not normally used in 'echo questions' (304).'Are you happy?''Am I happy? No!' (not … If/Whether I'm happy? …)Previous Next |
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