conclude,deduce,infer 這組動詞均含有“推斷”之意。其用法區(qū)別是: conclude作及物動詞。表示通過已知事實(shí)或一般常識經(jīng)推理而得到的結(jié)論、決定和看法等。如:

After waiting an hour, they concluded that she wasnt coming等了一個小時后,他們斷定她不會來了。?

The doctor concluded that the patient's disease was cancer.醫(yī)生斷定病人患的是癌癥。?

deduce 作及物動詞。指根據(jù)事實(shí)或充分證據(jù),一般準(zhǔn)則作演繹推理而得出結(jié)論。如:?

From her conversation, I duduced that she had a large family.我從她的談話里推斷她有很多孩子。?

Sherlock Holmes spent many hours trying to deduce the mystery.夏洛克·福爾摩斯花費(fèi)了許多小時試圖揭開這個謎。?

infer 作及物動詞 和不及物動詞。強(qiáng)調(diào)從不太充分的論據(jù)或前提中推斷出結(jié)論。如:?

Men observe and infer in all sorts of ways.人們透過各種途徑進(jìn)行觀察和推斷。?

From his grades I inferred that he was a goodstudent.我根據(jù)他的成績推斷他是個好學(xué)生。