1、动词不定式北斗meis 我的样子to+动词原形to do有时to 离我而去人们为了否定我to 前 来作对！not我在句子中作主语 宾语表语状语宾语补足语定语不定式作主语常用it作形式主语，动词不定式放在后面。it不表示具体意义。常用三种句型。It+be+adj.+动词不定式 It+be+adj.+for sb.+动词不定式It is difficult to improve your English in such a short time.Its necessary for the students to have enough exercise every day.It+be+adj.+o
2、f sb.+动词不定式 Its clever of you to make such a decision.当形容词为careful,clever,kind,nice,good,right,wrong等表示人的品质、特性的词时，用of短语作动词不定式的逻辑主语。It takes sb.some time to do sth.It took me too much time to finish my homework.不定式作宾语动词不定式作及物动词的宾语，这些动词有：want,begin,start,forget,ask,learn,decide,wish,hope,agree,refuse,
3、plan,expect等What do you want to do after school?动词不定式作宾语时，可以用it作形式宾语，动词不定式后移。Some children feel it not eay to talk with their parents.不定式作宾语补足语动词不定式作宾语补足语时，说明宾语发出的动作，否定形式是not to do.Please tell them not to make any noise in the library.动词不定式在下列动词后作宾语补足语时，要省略不定式符号to.感官动词：feel,hear,listen to,look at,se
4、e,watch,notice.使役动词：let,make,have注意另外在had better,would rather后也不带to。help后可带可不带to（半跟to）。不定式作状语不定式作状语，表目的。不定式作状语，表目的。动词不定式作结果状语可置于句子的前面，也可动词不定式作结果状语可置于句子的前面，也可置于句子后面。在句子前面时，动词不定式常与置于句子后面。在句子前面时，动词不定式常与句子用逗号隔开。句子用逗号隔开。To get to work,he often gets up at 18:00.不定式作状语不定式作状语，表结果。不定式作状语，表结果。动词不定式作结果状语常用于下列结
5、构中：动词不定式作结果状语常用于下列结构中：a)adj,/adv.+enough+to doHe ran fast enough to catch up with Li Lei.不定式作状语不定式作状语，表结果。不定式作状语，表结果。动词不定式作结果状语常用于下列结构中：动词不定式作结果状语常用于下列结构中：b)too+adj,/adv.+to doHe went too slowly to catch the early bus.不定式作状语不定式作状语，表原因。不定式作状语，表原因。动词不定式表示原因时，一般置于句子末尾，说动词不定式表示原因时，一般置于句子末尾，说明主语的某种心情、情感。
6、放在形容词明主语的某种心情、情感。放在形容词glad，pleased，sad，worried，excited等后面表示等后面表示产生这些情绪的原因。产生这些情绪的原因。Im glad to meet you.不定式作定语不定式作定语，需放在被修饰的名词或代词之不定式作定语，需放在被修饰的名词或代词之后，和修饰词存在三种关系：后，和修饰词存在三种关系：动宾关系He has an email to send.注意：不定式与它所修饰的名词或代词有逻辑上的动宾关系时，如果此动词为不及物动词，则应加介词。不定式作定语注意：不定式与它所修饰的名词或代词有逻辑上的动宾关系时，如果此动词为不及物动词，则应加介
7、词。There are some wonderful songs to listen to.不定式作定语主谓关系He is the first one to get to school.说明关系This is a good way to improve your English.不定式作表语不定式作表语，对主语的内容起说明作用。My hobby is to read.To see is to believe.不定式与疑问词连用疑问词+动词不定式常作下列动词的宾语：tell,advise,show,teach,decide,discuss,learn,forget等.We have decided when to go.Are you teaching them to read?下列动词(短语)discover,explain,find out,wonder常接how+动词不定式作宾语。She found out how to work quickly.不定式与疑问词连用下列动词show,know只能接疑问词+动词不定式。I dont know what to do next.不定式与疑问词连用
