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1、悦考网 悦考网 初中英语句子成分知识详解英语句子与汉语句子一样，都是由单词按照一定的规则所组成的。不同的词类在句中所起的作用是不同的。因此，只有搞清不同词类在句中可充当哪些成分，才能正确分析、理解句子的含义，并能准确地遣词造句，逐渐达到流利地说出地道的英语。请同学们认真阅读下面的问答，我相信它一定会对同学们起到抛砖引玉的作用。【问】什么是句子成分?英语句子包含哪些成分?【答】组成句子的各个部分叫做句子成分。它包括：主语、谓语、宾语、定语、状语、表语和宾语补足语等。【问】各成分在句中的作用如何?分别由哪些词及短语充当?【答】1.主语：是句子要说明的人或事物，是句子的主体，一般由名词、代词、数词、
2、不定式或动名词等充当。如：The car is running fast.(名词)We are students.(代词)One of my classmates is from Shanghai.(数词)Its bad manners to spit in public.(不定式)Eating too much is bad for your health.(动名词)【注意】若不定式短语作主语常用 it 作形式主语，而把真正的主语( 不定式短语)放在句后。2.谓语：说明主语的动作或状态，也是句子的主体部分，一般由动词充当。动词分为实义动词、连系动词、情态动词和助动词。实义动词单独作谓语，连系
3、动词与表语一起构成谓语，情态动词与省略 to 的不定式构成合成谓语，助动词与动词原形共同构成谓语部分。如：He works in a factory.(实义动词)悦考网 悦考网 I felt cold.(系动词+表语)How can I get to the station?(情态动词+实义动词)Do you speak English?(助动词+ 实义动词)They are working in a field.(助动词+实义动词)【注意】谓语与主语在人称与数方面要相互照应。3.宾语：是及物动词所涉及的对象，一般由名词、代词、不定式及动名词等充当。如：He is doing his home
4、work.(名词)They did nothing this morning.(代词)She wants to go home.(不定式)We enjoy playing football.(动名词)【注意】有的动词可接双宾语，间接宾语指人，直接宾语指物。这类动词常见的有：give，buy，lend，pass， tell，leave 等。如：He bought me a book.Pass me the ball，will you?(间宾+ 直宾)直接宾语一般放在间接宾语之后，但若把直接宾语放在前面，则要在间接宾语前加适当的介词如 to 或 for 等。如：Han Chen lent some
5、 money to Li Hai.(直宾+间宾)Xiao Liu bought a dictionary for Tom.(直宾+间宾)有的动词常用不定式作宾语，而不能用动名词。这类动词有：want，wish ， hope，promise ，decide ，agree， choose，care 等。如：I hope to see you again.有的动词一般只用动名词作宾语，而不用不定式。这类动词有：enjoy，finish，mind ，practise，miss ， suggest，keep(on)等。如：悦考网 悦考网 Do you mind my opening the window
6、?有的动词后接不定式与动名词含义不同。a)forget to do 表示“未发生的动作”，forget doing 表示“已完成的动作”。如：Dont forget to come here earlier tomorrow.(还没来)I forgot returning the book to him.(书已还给他了)b)stop to do(不定式为状语) 表示“停下原来的事，去做另一件事”，stop doing 表示“停止做某事”。如：I stopped to talk with him.(我停下来与他谈话。)The students stopped talking when the t
7、eacher came in.(老师进来时学生们停止谈话。)4.定语：用于修饰名词或代词，一般由形容词、名词、数词、不定式等充当。如：What a beautiful kite it is!(形容词)She is a chemistry teacher.(名词)There are two students in the classroom.(数词)We have something to do tomorrow.(不定式)The man in blue is my brother.(介词短语)【注意】定语一般位于被修饰词之前，但若修饰不定代词或不定式等短语作定语，则放在后面。5.状语：用于修饰
8、动词、形容词、副词或全句，一般由副词、介词短语、不定式短语或从句充当。单个副词作状语一般放在被修饰词之前，短语或从句放在句首或句末。如：Thank you very much.(副词)悦考网 悦考网 I get up at five in the morning.(介词短语)He is studying hard so as to catch up with others.(不定式短语)We were having breakfast when the telephone rang.(从句)【注意】enough 作状语只能放在被修饰词之后。如：He is old enough to go to
9、 school.6.表语：用于说明主语的身份、特征或感受，一般由名词、数词、形容词、分词等充当。常用的连系动词有：be，look，get ，sound(听起来)，feel，become， smell，turn，taste( 尝起来) 等。如：They are workers.(名词)Two and three is five.(数词)The story is very interesting.(形容词)M y job(工作)is teaching English.(动名词)She is at home.(介词短语)I feel terrible.(形容词 )The dish tastes de
10、licious.(形容词)7.宾语补足语：用于补充说明宾语的动作，一般位于宾语之后，宾语与宾语补足语一起构成复合宾语。需接复合宾语的动词有：tell，let ，help，teach， ask，see，have，order，make 等。“宾补”一般由不定式短语、分词、名词、形容词等充当。如：We elected him monitor.(名词)I found it difficult to learn English well.(形容词)The doctor told me to do more exercise.(不定式短语)He is going to have his hair cut.
11、(过去分词)悦考网 悦考网 They saw a bird flying in the sky.(现在分词)初中英语语法之非谓语动词非谓语动词1.定义：动词除在句子中作谓语以外，还具有名词、形容词及副词的性质，在句中可作主语、表语、宾语、定语、状语和补语等，这就是动词的非谓语动词。可分为三种：动词不定式、分词和动名词。2.动词不定式：to + 动词原形(在某些情况下可以不带 to )。(没有人称和数的变化，可以有自己的宾语和状语，可以有时态和语态的变化)1 一般式：主动语态：to do , 被动语态：to be + 动词过去分词 (表示动作或状态与谓语动词的动作或状态同时发生或之后发生)2 进
12、行式：主动语态：to be doing , 被动语态：无 (表示动作或状态与谓语动词的动作或状态同时发生)3 完成式：主动语态：to have +动词过去分词，被动语态：to have been +动词过去分词 (表示动作或状态在谓语动作之前就发生)4 用法：A. 作主语：To learn a foreign language is not easy . = Its not easy to learn a foreign language .B. 作表语：The most important thing is to finish the work on time .C. 作宾语：a. 动词+t
13、o do . He decided to buy a new watch . (agree, choose, want, hope, like, wish, learn, love, plan, try, start, afford )b. 动词+疑问词+to do I dont know where to put the bike .c. 动词+形式宾语(it)+宾补+to do I find it important to learn a second foreign language .悦考网 悦考网 D. 作补语：a. 动词+宾语+to do Tom asked me to show
14、him the new shoes . (tell, wish, ask, want, like, beg, invite, allow, encourage)b. 动词+宾语+ 不带 to 的动词 He often saw Tom play football .(see, hear, feel, watch, notice, have, make, let)E. 作状语：a. 表示目的：He went to Guangzhou to see his sons . He got up early in order to catch the first bus .b. 表示结果：He is to
15、o tired to walk any farther . They arent old enough to go to school .c. 表示原因： He is sorry to hear that . I am glad to see you .F.作定语： I have something to tell you . I want to buy something to eat .5 动词不定式 to 的省略：A. 在感官动词 feel, hear, see, watch, notice 及使役动词 have, let, make等后面要省 to，但在变被动语态时要还原不定式 to。I often saw him go out of the room .- He was often seen to go out of the room by me .B.在 had better, would rather, do nothing but 等后面常省 to。6 动词不定式的否定形式：not + to do ，有时也可以用-never + to do 结构。3.动名词：动词原形+ing 。具有名词、动词一些特征。悦考网 悦考网 1 一般式：主动语态：doing ，被动语态：bein
