题目内容：

初中什么单词后面一定要加to do sth.什么单词后面要加doing sth.

优质解答

后接to do 和doing的动词归纳
A. 跟不定式（to do）作宾语的动词：
want, wish, hope, manage, pretend, decide, learn, agree, expect, demand,
long, ask,
care, choose, dare, fail, offer, plan, prepare, promise, refuse, desire,
happen,
appear, intend, would like to, be said to,
B. 跟动名词(doing)作宾语的动词：
suggest, admit, finish, avoid, mind, enjoy, delay, practice, excuse sb.
for,
advice, consider, escape, miss, risk, dislike, imagine, permit,
require(表被动),
appreciate(感激),understand, insist on, look forward to, get down to,
devote oneself to, prefer…to… object to (反对), put off, apologize to sb.
for,
give up,
forgive sb. for, be worth, be fond of, be good at, be slow in, be active
in,
be afraid of, be tired of, be busy, succeed in,
prevent/stop/keep sb. from, spend time (in), have difficult/trouble in,
It’s no use/good,
be pround of, instead of.
C. 跟动名词(doing)和动词不定式（to do）均可的词,含义无区别：
start, begin, continue,
prefer, like, love, hate, 后跟to do 表具体和特定的动作, 后跟 doing 表泛指的动作
D. 跟动名词(doing)动词不定式（to do）均可的词,含义区别较大：
1. stop to do 2. mean to do 3. try to do 4. agree to do
stop doing mean doing try doing agree to sb doing
5. be afraid to do 6. remember to do 7. forget to do 8.
allow/permit/advise sb. to do
be afraid of doing remember doing forget doing allow/permit/advise doing
9. regret to do 10. want to do 11. need to do 12. go on to do
regret doing want doing (表被动) need(表被动) go on doing
13. can’t help to do 14. forbid sb. to do=forbid sb’s doing
can’t help doing forbid doing
5.感官动词 + doing/to do
感官动词 see, watch, observe, notice, look at, hear, listen to, smell, taste, feel + do 表示动作的完整性,真实性；+doing 表示动作的连续性,进行性
I saw him work in the garden yesterday.
昨天我看见他在花园里干活了.(强调"我看见了"这个事实)
I saw him working in the garden yesterday.（强调"我见他正干活"这个动作）
昨天我见他正在花园里干活.
典型例题
1）They knew her very well. They had seen her ___ up from childhood.
A. grow B. grew C. was growing D. to grow
答案：A.因题意为,他们看着她长大,因此强调的是成长的过程,而非正在长的动作,因此用see sb do sth 的句型.
2）The missing boy was last seen ___ near the river.
A. playing B. to be playing C. play D. to play
答案A. 本题强调其动作,正在河边玩,应此用see sb. doing sth句型