[B] 在这种情况下，如果不定式动词是不及物动词，则后面必须加介词。如：
They could not find a place to live in.(他们找不到住的地方)/ Please give me a chair to sit on.(请给我一张椅子坐坐)/ He has got a writing brush to write with.((他找到了写字的毛笔)
⑥ 动词不定式可以在句子中用作状语，有下列几种情况：
[A] 放在不及物动词(come, go, stop, finish, wait等词)的后面。如：He came to see her yesterday.(他昨天来看望她)(表示来的目的)/ I stopped to have a rest.(我停下来休息一会儿)(表示停下来的目的)
[B] 放在完整的谓语之后(即“谓语 宾语”、“谓语 宾语 补语”、“动词 表语”之后)。如：We cleaned the room to let him play in it.(我们打扫了房间以便让他在里面玩)/ I opened the window to see more clearly.(我打开窗子以便看得更清楚点儿)
[C] 有时表示目的的不定式短语可以放在句首。如：To arrive there on time，I got up one hour earlier than usual.(为了按时到达，我们比平时早起了一个小时)(表示早起的目的)
[注意] stop to do 与stop doing的不同。如：They stopped to have a look.(他们停下来看看)(不定式作“停下来”的目的状语)/ They stopped looking out of the window and began to listen to the teahcher.(他们停止向窗外望，开始听老师讲课)(动名词作宾语，表示“停止”的内容)
⑦ 动词不定式可以在句子中用作表语，限用于连系动词之后。如：My job is to keep the goal.(我的工作就是守住球门)
⑧ 动词不定式可以在句子中用作复合宾语中的宾语补足语。
如：Mum asked me to help her with the cooking.(妈妈叫我帮助她做饭)/ I would like you to see my parents.(我想要你见见我的父母)/ The boss often made the workers work 14 hours a day.(老板常让工人们一天工作14小时)/ Now let me hear you play the violin.(现在让我来听你拉小提琴)
[注意] help之后做宾补的不定式符号to可以省略；hear / see / feel / watch之后的宾补用不定式与现在分词时，含义不同，需特别注意，(参见现在分词部分)。试比较：
I heard her crying when I walked past.(我路过时听到她正在哭。)(指当时瞬间的情况)
I sat near her and heard her sing the new song.(我坐在她附近听她唱新歌。)(指整个过程)
动名词① 动名词由动词原形加词尾“ing”构成。动名词有动词的特征，可以跟宾语，可以被状语修饰；它也有名词的特征，在句子中可以作主语、宾语(包括介词宾语)等。动名词加相关词语(宾语或状语等)构成动名词短语。
② 动名词可以作主语。一般可用it作形式主语而将动名词短语后移。如：Learning English all by yourself is not so easy.(自学好英语不那么容易。)(=It is not so easy learning English all by yourself.)
③ 动名词可以作宾语。
[A] want / need之后用动名词时，含有被动意思。如：Your car needs reparing badly.(你的车急需修理。)(被修)My hair needs cutting.(我要理发。)(头发被理)
[B] remember / forge / stop / finish之后用动名词时，与用不定式含义不同。如：I forgot to write a letter to him.(我忘了给他写封信。)(根本没写) / I forgot writing a letter to him.(我忘了给他写过信。)(写了却忘了) / They stopped to look back.(他们停下来向后看。)(停下的目的是向后看) / They stopped looking back.(他们停止向后看。)(不向后看了)
[C] enjoy / mind / keep / hate/ go等词一般用动名词作宾语。如：Do you mind my closing the door?(把门关上你介意吗？)/ She hates travelling by air.(她讨厌坐飞机旅行)/ They went swimming every afternoon.(他们每天下午去游泳。)/ I enjoy walking around the town.(我喜欢在镇上转悠。)
[D] like / love / start / begin / learn后面用动名词时，与用不定式意思相近或相同。如：We began to study English when we were at primary school.(我们在小学时就开始学英语了。) / We began studying English when we were at primary school. (我们在小学时就开始学英语了。)
④ 动名词可以作表语，此时特别注意不要与现在进行时混淆。如：My job is putting these parts together.(我的事情是把这些部件拼起来。) / I am putting these parts together.(我正在把这些部件拼起来。)
⑤ 动名词与现在分词构成相同，但是含义不同，动名词主要表示事情，而现在分词则主要表示进行着的动作。如：Eating too much is not good for your health. (动名词短语，作主语) / Seeing is believing.(动名词短语，分别作主语和表语) / He ran after a moving bus and got onto it.(现在分词，作定语) / His father saw him sitting on some eggs.(现在分词，作宾补)
(4)分词： 包含现在分词和过去分词。
① 主要区别：现在分词一般有主动的意思或表示动作正在进行的意思；过去分词有被动或动 作已经完成的意思。分词可以有自己的宾语或状语。
② 分词或分词短语在句子中作定语、状语和复合宾语等。
[A] 作定语：分词作定语时，一般要放在修饰的名词之前，分词短语作定语时，则要放在所修饰的名词之后。 如：I have got a running nose.(我流鼻涕。) / The woman running after the thief shouted very loudly，“Stop the thief!”(跟着小偷追的妇女大喊：捉小偷！) / Yesterday I met a man called Mr. Black.(昨天我遇见了一个名叫布莱克先生的人)/ He only gave me a broken glass，so I was very angry with him.(他只给了我一个坏玻璃杯，所以我很生他的气。)
[B] 现在分词可以作下列动词的宾语补足语。
如：Mum kept me working all the week.(妈妈让我一个星期都在工作)/ When I entered the room，I saw Jack eating a big pear.(我进入房间时看到杰克正在吃一只大梨子。)/ In the dark I felt something very cold moving on my foot.(黑暗之中我感到有个冷的东西在我的脚上移动。)
[C] 现在分词可以作状语，表示伴随情况。如：She came into the classroom，holding a pile of papers in her hand.(他走进教室，手上抓着一沓纸。)/ I am very busy these days getting ready for the coming oral test.(这些日子我正忙着准备即将来到的口语考试。)
[D] 过去分词可以作表语，放在连系动词后面，但要注意不要与被动语态混淆，“主系表”主要表示状态，而被动语态则表示动作。常用过去分词作表语的结构有：be worried (焦虑) / be pleased (高兴) / be tired (疲劳) / get dressed (打扮好) /get lost (迷路) / get caught (遭遇) / beome frustrated (沮丧) / become intereted in (对…感兴趣)等等。例略。
[E] 过去分词可以作宾语补足语。如：I had my hair cut this morning.(今天早上我让人给我理了发。)(注意：have sth. done表示动作由别人来做，而have done sth.则为现在完成时的结构，两个结构不可以混淆)
本文仅仅从最重要最基本的概念进行解释，如果想学的深一点，小编前期各类文章里有对本文的方方面面有深入的解说，希望大家进去好好看一下，英语的进步到时就不是进步一点点啦！最后祝大家学习进步！
