2012年04月17日 02時04分，《英語:2012小升初英語語法知識要點：動詞不定式(五)》由出國留學(xué)網(wǎng)liuxue86.com英語編輯整理.
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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 restedB. resting C. to restD. rest
答案：C。由題意可知，她到了山頂，停下來在一個路邊的大石頭上休息。因此，應(yīng)選擇"stop to do sth. 停下來去做另一件事"。而不僅僅是爬山動作的終止，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。(沒有做關(guān)燈的動作)
He forgot turning the light off. 他忘記他已經(jīng)關(guān)了燈了。( 已做過關(guān)燈的動作)
Don't forget to come tomorrow. 別忘了明天來。(to come動作未做)
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)燈的動作沒有發(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。此處不符合題意。
：
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 restedB. resting C. to restD. rest
答案：C。由題意可知，她到了山頂，停下來在一個路邊的大石頭上休息。因此，應(yīng)選擇"stop to do sth. 停下來去做另一件事"。而不僅僅是爬山動作的終止，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。(沒有做關(guān)燈的動作)
He forgot turning the light off. 他忘記他已經(jīng)關(guān)了燈了。( 已做過關(guān)燈的動作)
Don't forget to come tomorrow. 別忘了明天來。(to come動作未做)
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)燈的動作沒有發(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。此處不符合題意。