foreign[5fCriN] adj.外国的：Are you able to speak a foreign language? 你能讲外语吗? / He’s our foreign minister. 他是我们的外交部长。

foreigner[5fCriNnE] n. [C]外国人：Many foreigners have become citizens of the United States. 许多外国人都已成为美国公民。

foresee[5fCris](foresaw, foreseen) vt.预见，预知：This is something I didn’t foresee, and therefore failed to provide for it. 这是未能预料的一种情况，因此没有做准备。

forest[5fCrist] n. [C,U]森林：Very little forest is left unexplored nowadays. 如今未经勘测的森林已是少之又少。/ They can’t see the forest for the trees. 他们见树不见林(一叶障目)。

forever[fE5revE] adv. 1.永远，永恒的：Once a use, forever a custom. 习惯成自然。2.不断，总是：She’s forever complaining. 她总是发牢骚。

forget[fE5get](forgot, forgotten) v. 1.忘记，忘掉：I’ve forgotten his name. 我忘记了他的名字。2.忘记带：I forgot my umbrella. 我忘记带伞了。■forget about 忘记，不把…放在心上：He forgot about the meeting. 他忘了去开会。

【用法】1.后接不定式或动名词含义上有区别：接不定式表示忘记要做的事情，接动名词表示忘记已经做过或已经发生过的事情：I forgot to pay him. 我忘记付给他钱了。(钱未付) / I forgot paying him. 我忘记曾给他付过钱了。(钱已付) 2.表示忘记带某物时，通常不与具体的地点连用，遇此情况可改为动词leave等：He left his wallet in the office. 他把钱包忘在办公室了。

forgetful[fE5getful] adj. 1.健忘的：Old people are sometimes forgetful. 老年人有时健忘。2.不留心的，疏忽的：He was forgetful of sleep and meals. 他废寝忘食。

【比较】forgetful与unforgettable：前者指“(人)健忘的”，后者指“(令人)难忘的”。注意两者使用的后缀不同。

forgive[fE5giv](forgave, forgiven) v. 原谅，宽恕：I’ll never forgive you. 我永远不原谅你。/ They forgave his being rude.=They forgave (him) his rudeness.=They forgave him for being rude. 他们原谅了他的鲁莽。/ Please forgive me for interrupting [my interrupting]. 对不起，打搅了。

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