【五分钟语法小课堂】To do or doing，这也是个问题！
语法规则:
动名词与动词不定式都是由动词变化而成的。
动词不定式的基本形式为“to+动词原形”。例如, “to do,” “to sleep,” “to love” and “to create.”
动名词是由动词+ing构成: “sleeping,” “drawing,” “swimming.” 这些实际上都是用作名词的动词形式。
有些动词可变为动词不定式与动名词两种形式, 而有些动词却只变为其中一种形式。
1.动词后可接动词不定式与动名词，但意思上略有差别。 后接动名词（verb+ing）的动词，如：like，love ，hate，通常表达喜欢、讨厌某个事物或已经发生的某一动作。当后接to do的动词，如like，love，hate，通常表达偏好，或表示将要发生的某一动作。
2.只接动名词或动词不定式的动词:
2a. 只接动词不定式的动词: agree, decide, deserve, expect, hope, learn, need, offer, plan, promise, seem, wait, want。还有很多后接动词不定式的动词，在英语学习的过程中，你自然会接触到这些单词。
2b. 只接动名词的动词: admit, advise, avoid, consider, deny, involve, mention, recommend, risk, suggest。
通过练习，你就会知道何时该用ing，何时该用to do了!
例句：
1.I like playing games. (意思是： 我经常玩游戏，而且我很爱玩游戏。)
2.I like to play games. (意思是: 我想要玩游戏。)
3.He agreed to babysit his little sister. (你不能说: he agreed babysitting his little sister.)
4.I admit making a mistake. (你不能说: I admit to make a mistake.)
练习：
用所给动词的适当形式填空：
1.I hate______________, so I quitted. (dance) (meaning I tired and I don’t enjoy it)
2.I hate___________, but sometimes, I have to. (lie) (meaning you don’t think lying is right, but you are about to do it)
3._______or not to be, that is a question. (be)
4.I enjoy _________ with my grandparents. (walk) (meaning you’ve done it and liked it.)
5.I hope __________ you soon! (see)
参考答案：
动名词与动词不定式都是由动词变化而成的。
动词不定式的基本形式为“to+动词原形”。例如, “to do,” “to sleep,” “to love” and “to create.”
动名词是由动词+ing构成: “sleeping,” “drawing,” “swimming.” 这些实际上都是用作名词的动词形式。
有些动词可变为动词不定式与动名词两种形式, 而有些动词却只变为其中一种形式。
1.动词后可接动词不定式与动名词，但意思上略有差别。 后接动名词（verb+ing）的动词，如：like，love ，hate，通常表达喜欢、讨厌某个事物或已经发生的某一动作。当后接to do的动词，如like，love，hate，通常表达偏好，或表示将要发生的某一动作。
2.只接动名词或动词不定式的动词:
2a. 只接动词不定式的动词: agree, decide, deserve, expect, hope, learn, need, offer, plan, promise, seem, wait, want。还有很多后接动词不定式的动词，在英语学习的过程中，你自然会接触到这些单词。
2b. 只接动名词的动词: admit, advise, avoid, consider, deny, involve, mention, recommend, risk, suggest。
通过练习，你就会知道何时该用ing，何时该用to do了!
例句：
1.I like playing games. (意思是： 我经常玩游戏，而且我很爱玩游戏。)
2.I like to play games. (意思是: 我想要玩游戏。)
3.He agreed to babysit his little sister. (你不能说: he agreed babysitting his little sister.)
4.I admit making a mistake. (你不能说: I admit to make a mistake.)
练习：
用所给动词的适当形式填空：
1.I hate______________, so I quitted. (dance) (meaning I tired and I don’t enjoy it)
2.I hate___________, but sometimes, I have to. (lie) (meaning you don’t think lying is right, but you are about to do it)
3._______or not to be, that is a question. (be)
4.I enjoy _________ with my grandparents. (walk) (meaning you’ve done it and liked it.)
5.I hope __________ you soon! (see)
参考答案：
- dancing
- to lie
- To be
- Walking
- to see
