① insist on sth./doing sth.意為“堅(jiān)持要干某事”。
He insisted on writing the book. 他堅(jiān)持要寫這本書。
He insisted on his own opinions. 他堅(jiān)持自己的意見。
② keep up doing sth.意為“把……繼續(xù)下去,不松懈”,也可以說keep sth. up。
Since you have been doing the research work for five years,you should keep it up. 既然你從事這項(xiàng)研究工作已有5年了,你就應(yīng)該把它繼續(xù)進(jìn)行下去。
③ stick to的意思同insist on和persist in差不多,較口語(yǔ)化,是對(duì)“原則,決定,愿望,意見,諾言,理想,理論”等的堅(jiān)持,to為介詞,后接名詞或動(dòng)名詞,不接不定式。
He sticks to the principle through sick and thin. 他在任何情況下都堅(jiān)持原則。
We stick to what is right. 我們堅(jiān)持正確的東西。
④ keep on表示continue to do,指克服困難、頑強(qiáng)奮斗,也指一般的“老是”做某事。keep on后常接動(dòng)名詞作賓語(yǔ),也可單獨(dú)使用。
Keep on practising and you will speak English fluently. 堅(jiān)持多練,你英語(yǔ)就能說得流利。
Don't keep on asking silly questions. 不要老是問愚蠢的問題。
The rain kept on several days. 雨一連下了好幾天。
⑤ persist表示不顧困難或障礙,堅(jiān)持某種活動(dòng);有時(shí)含貶義,表示固執(zhí),不聽勸告,結(jié)構(gòu)為:persist in sth./doing sth.。
He persisted in his foolish ideas. 他堅(jiān)持其愚蠢的想法。
She persists in wearing the old-fashioned hat. 她堅(jiān)持要戴那頂舊式的帽子。
If you persist in breaking the law,you will go to prison. 如果你堅(jiān)持違法犯罪活動(dòng),你就得蹲班房。
⑥ persevere表示“堅(jiān)持不懈,不屈不撓,堅(jiān)忍不拔”,指不顧困難,始終如一地堅(jiān)持,常含褒義,結(jié)構(gòu)為:persevere in/at/with sth.,persevere with sb.。
He persevered in/at/with his studies amidst all these difficulties. 身處所有這些困難之中,他仍然堅(jiān)持不懈地學(xué)習(xí)。
Although she was hopeless at chemistry,the teacher persevered with her. 雖然她的化學(xué)怎么教也不會(huì),但老師仍然堅(jiān)持教她。