动词如何转换成名词
动名词（Gerund）和不定词（Infinitive）
1. 动名词（Gerund）
所谓动名词，乃是将一个动词，字尾加上ing，一夜之间，这个动词就可以当作名词用了。请看以下的例子：
I like singing.
Playing basketball is good for you.
Do you enjoy listening to classical music?
Is traveling around the world meaningful to you?
Studying English is not difficult.
1.动名词可用作主词，如
Playing tennis is enjoyed by many people.
Taking drugs is avoided by most people.
Being kind to others is important for every one.
Respecting your parents shows good character.
2.动名词可以用作动词的受词，如
I enjoy studying English.
He does not mind walking long distances.
I have never enjoyed being alone in my life.
He loves swimming.
3.动名词可以用作介系词（preposition）的受词，英文里有很多介系词，at, in, about, of, on等等都是介系词，介系词后面必定跟一个名词，也是它的受词，举例来说
on the table
in my home
about Hitler
of my life
on this island
各位一定注意到，每一个介系词后面都有一个名词，作为它的受词。
动名词是可以作为介系词的受词的，如：
This book is about traveling.
He is responsible for cleaning the kitchen.
My brother is capable of writing programs.
You just keep on going straight.
在下面，我们要给各位更多有关gerund的例子，各位不妨看看每一个句子中，那个动名词是作什么用的。
Instead of swimming, he walks every morning.
He likes walking in the woods.
Are you interested in playing tennis?
Loving is to be kind to others.
Reading is important to students.
In addition to traveling, he also likes reading novels.
You will be happy by helping others.
He is worried about being late.
I finished writing the report yesterday.
They thanked me for lending them money.
He has never finished writing the novel.
She is in change of teaching English in our school.
My father objected to my going to the summer camp.
Please stop joking about my brother.
I look forward to seeing you.
He has never enjoyed traveling.
She was excited about going abroad.
I consider gambling a bad thing to do.
I have never dreamed of flying an airplane.
He suggested talking to our teacher.
I believe in doing some kind of exercise every day.
Playing the piano is no fun at all.
Nancy is accustomed to sleeping late.
Are you tired of driving for so long?
You should forgive others for doing wrong things.
He insists on getting up early every morning.
Thank you for participating in my concert.
He is used to studying alone.
They are not used to speaking English.
He is accustomed to being polite to others.
I object to seeing dirty movies.
You should take advantage of studying in such a good place.
2. 不定词（Infinitives）
不定词＝to＋动词的原式。例如to go, to love, to eat等等，都是不定词，不定词和动名词的用法相似，以下全是用不定词用作名词的例子：
To love is to forgive.
To forgive your enemies will make you happy.
I like to eat chicken.
I asked my brother to come here.
He continued to read.
1.不定词可以用作主词：如
To play tennis is great fun.
To play safe in the stock market is necessary.
To be kind to others is important for every one.
To respect your parents shows good character.
2.不定词可以用成很多动词的受词：
I like to swim.
He loves to listen to jokes.
My brother seems to be different.
I agree to lend him money.
Do you like to sing?
3.不定词可以跟在代名词的后面，形式如下：
动词（verb）＋代名词（pronoun）＋不定词（infinitive）
例如：
I told him to work hard.
I asked my brother to come back home.
He expects his friends to help him.
My teacher told me to wait for him.
I invited my sister to go to see a movie.
4.不定词常用在上述句子的被动语气中，例如：
He was told to work hard.
My brother was asked to come back home.
His friend is expected to help me.
I was told by my teacher to wait.
My sister was invited to go to see a movie.
以下是更多的不定词例子：
To give is more meaningful than to receive.
I love to swim in cold weather.
He agreed to listen to my story.
He decided to go anyway.
I told him to buy my book.
I invited him to come to my house.
I asked him to cook for me tonight.
Students are asked to work hard.
He needs to work hard.
I want you to send this letter to my father.
He requires every student to read one novel every week.
Every student is required to read one novel every week.
读者一定会问，是不是动名词可以和不定词互调，答案是否定的，有些动词后面可以跟动名词和不定词，但也有些动词，后面只能跟动名词，有些动词后面只能跟不定词。
有些动词后面可以跟动名词或不定词：love, like, hate, start, begin,以下的动词，后面只能跟动名词：
以下的动词正好相反，只能跟不定词
一个字非常特殊，必须讨论一下，那就是stop：
stop smoking 指不再抽烟了
stop to smoke 指停下来，开始抽烟
3.动名词和不定词的被动和否定形式
将动词改成名词的时候，也可以有被动语气和否定语气，以下是一些例子：
Everyone likes to be loved.
This cup needs to be washed.
Being trusted is important.
I told him not to leave this house.
He asked me not to cry.
I was told not to fall asleep in class.
To be given a good gift on Christmas Eve makes me happy.
Being invited to that party is a great honor to me.
4. 不定词的简式
I let him leave.
I made him work hard.
以下的动词后面，不定词的后面都要省掉to。
Help这一个动词非常特别，它后面的不定词中的to可省略也可不省，以下的句子都是对的：
I helped him wash his car.
I helped him to wash his car.
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