動(dòng)名詞與不定式

　　1) 動(dòng)名詞與不定式的區(qū)別：

　　動(dòng)名詞表達(dá)的是： 狀態(tài)，性質(zhì)，心境，抽象，經(jīng)常性，已發(fā)生的

　　不定式表達(dá)的是： 目的，結(jié)果，原因，具體，一次性，將發(fā)生的

　　2) 接不定式或動(dòng)名詞，意義相同。

　　3) 動(dòng)名詞與不定式語(yǔ)義不同的有11 組：

　　stop to do stop doing

　　forget to do forget doing

　　remember to do remember doing

　　cease to do cease doing

　　try to do try doing

　　go on to do go on doing

　　afraid to do afraid doing

　　interested to do interested doing

　　mean to do mean doing

　　regret to do regret doing

　　begin/start to do begin/start doing

　　特殊詞精講

　　stop doing/to do

　　stop to do　停止，中斷做某事后去做另一件事。

　　stop doing　停止做某事。

　　They stop to smoke a cigarette.　他們停下來(lái)，抽了根煙。

　　I must stop smoking. 我必須戒煙了。

　　典型例題

　　She reached the top of the hill and stopped ___　on a big rock by the side of the path.

　　A. to have rested　B. resting　 C. to rest　D. rest

　　答案：C。由題意可知，她到了山頂，停下來(lái)在一個(gè)路邊的大石頭上休息。因此，應(yīng)選擇"stop to do sth. 停下來(lái)去做另一件事"。而不僅僅是爬山動(dòng)作的終止，所以stop doing sth。不正確。

　　stop doing/to do

　　forget doing/to do

　　forget to do　忘記要去做某事�！�(未做)

　　forget doing　忘記做過(guò)某事。　　(已做)

　　The light in the office is stil on. He forgot to turn it off. 辦公室的燈還在亮著，它忘記關(guān)了。(沒(méi)有做關(guān)燈的動(dòng)作)

　　He forgot turning the light off. 他忘記他已經(jīng)關(guān)了燈了。( 已做過(guò)關(guān)燈的動(dòng)作)

　　Don't forget to come tomorrow. 別忘了明天來(lái)。(to come動(dòng)作未做)

　　典型例題

　　---- The light in the office is still on。

　　---- Oh, I forgot___.

　　A. turning it off　 B. turn it off　 C. to turn it off　 D. having turned it off

　　答案：C。由the light is still on 可知燈亮著，即關(guān)燈的動(dòng)作沒(méi)有發(fā)生，因此用forget to do sth。

　　而forget doing sth表示燈已經(jīng)關(guān)上了，而自己忘記了這一事實(shí)。此處不符合題意。

　　try doing/to do

　　try to do　　努力，企圖做某事。

　　try doing　 試驗(yàn)，試著做某事。

　　You must try to be more careful.　你可要多加小心。

　　I tried gardening but didn't succeed. 我試著種果木花卉，但未成功。

　　go on doing/to do

　　go on to do　做了一件事后，接著做另一件事。

　　go on doing　 繼續(xù)做原來(lái)做的事。

　　After he had finished his maths，he went on to do his physics. 做完數(shù)學(xué)后，他接著去做物理。

　　Go on doing the other exercise after you have finished this one. 作完這個(gè)練習(xí)后，接著做其他的練習(xí)

　　be afraid doing/to do

　　be afraid to do　不敢，膽怯去做某事，是主觀上的原因不去做，意為"怕";

　　be afraid of doing　擔(dān)心出現(xiàn)doing的狀況、結(jié)果。 doing 是客觀上造成的，意為"生怕，恐怕"。

　　She was afraid to step further in grass because she was afraid of being bitten by a snake. 她生怕被蛇咬著，而不敢在草叢中再走一步。

　　She was afraid to wake her husband. 她不敢去叫醒她丈夫。

　　She was afraid of waking her husband. 她生怕吵醒她丈夫。

　　be interested doing/to do

　　interested to do　　 對(duì)做某事感興趣，想了解某事。

　　interested in doing　 對(duì)某種想法感興趣，doing 通常為想法。

　　I shall be interested to know what happens. 我很想知道發(fā)生了什么事。 (想了解)

　　I'm interested in working in Switzerland. Do you have any idea about that? 我對(duì)在瑞士工作感興趣。你想過(guò)這事嗎?　 (一種想法)