1．Realize作為及物動詞,可以表達(dá)“認(rèn)識到；了解”的意思.如：
He didn’t realize his mistake until his mother told him.
直到媽媽告訴他,他才認(rèn)識到自己的錯誤.
I didn’t realize how late it was.我沒有意識到天已經(jīng)那么晚了.
She realizes now how hard you worked.現(xiàn)在她了解你工作得多辛苦.
When he realized what had happened,he was sorry.
當(dāng)他明白發(fā)生了什么事時,他感到很難過.
2．realize還可以表示“實現(xiàn)；完成”的意思.如：
The girl finally realized her dream of becoming an actress.
那個女孩當(dāng)演員的夢想終于實現(xiàn)了.
3．recognize也可以用作及物動詞,表示“認(rèn)出；辯認(rèn)；認(rèn)識”的意思.如：
I recognized his voice.我認(rèn)出了他的聲音.
I recognized her as my friend’s daughter.我認(rèn)出她是我朋友的女兒.
4．recognize還可以表示“清楚知道；認(rèn)定”的意思.如：
I recognized him to be cleverer than I am.我認(rèn)識到他比我聰明.
I recognize that she works harder than I do.我認(rèn)識到她比我用功.
5．recognize還可以表示“承認(rèn)”的意思.如：
I recognize that I have been wrong.我承認(rèn)我錯了.
They refused to recognize this government.他們拒不承認(rèn)這個政府.
realize 比較常用,很普通的詞,表示對一個事物由不明白到明白的過程;感情色彩上,realize更具體,更有人的個性因素