1、含有两个或者更多的相互并列的主谓结构的句子叫并列句。并列句中各分句之间是并列的，无从属关系。eg:The teachers name is Smith,and the pupils name is John.主系表+主系表 简单句：主+谓 You,he and I are good friends.Hurry up,or youll miss the early bus.主谓=句子 One can not see wind,however,it does exist.两个句子 and连接两个或两个以上的句子成分时，不构成并 列句。eg：You,she and I are all student
2、s.简单句bothand,neithernor连接两个句子成分时，仍属于简单句。eg：Both he and I like English.Martin studies neither English nor Spanish.并列句不一定用并列连词构成，有时可能用逗号或分号说明两个分句之间的意义为并列关系。eg：The moon went down;the stars grew pale;the cold day broke;the sun rose.Hurry up,its getting late.复合句就是由主句和一个或 一个以上的从句构成。主句为句子的主体，从句不能独立，只能作全句的一
3、个句子成分，需要通过从属连词、关系代词、关系副词、连接副词等与主句连接起来。一、宾语从句 主谓宾 二、定语从句三、状语从句 主语从句 表语从句句子成分：主语 谓语 宾语 补语 表语 定语 状语宾语从句在复合句中可作及物动词的宾语，也可作介词和某些形容词的宾语。连词 并列（并列句）从属（从句）1.及物动词后的宾语从句(动宾从句)由从属连词that,if,whether引导。是否 if 如果 条件状语从句eg:I think that(hell return in an hour).主+谓 +宾语（一个句子）He asked me if/whether Miss Gao was a teacher
4、.由连接代词what,which,who,whose及wh-ever引导。在句中担任主语、宾语、定语或者表语。eg:She doesnt know what she should do next.She doesnt know what she should do next.what she should do next.陈述 she should do _？Can you tell me whom you are waiting for?由连接副词why,where,when,how引导,在句中担任状语的成分。eg：Could you tell me when the train will
5、leave?Do you remember how he came?主+谓语 +宾语时态 语序 引导词（4）介词后面的宾语从句（介宾从句）eg：Alice is sorry for what she said.She always thinks of how she can improve her spoken English.某些形容词后的宾语从句 eg：I am glad that you can join us.I am sorry（that）I am late.2.引导词it代表宾语从句在“及物动词+宾语+宾语补足语”结构中，为了平衡句子结构，常用it作形式宾语，而将真正的宾语从句置于
6、宾语补足语的后面。It is+adj.+for/of sb.+to do.形式主语 eg:eg:I think it necessary(that we should do more practice in English learning).it=that we should do more practice in English learning 真正的宾语3.宾语从句的语序 宾语从句必须是陈述语序，即按照主语+谓语的顺序。eg:He asked me what I did yesterday afternoon.Do you know why winter is colder than
7、summer.4.宾语从句的时态(1)当主句中谓语是现在或将来时态时，从句中谓语不受主句谓语时态的影响，可以按需要使用任何时态。eg:I hear（that）hell be back in a few days.主：一般现在时态 从：一般将来 I hear he came back a few days ago.主：一般现在 从：一般过去(2)当主句谓语是过去时态时，从句中的时态一般为表示过去的某种时态，以便保持与主句谓语动词时态的一致。eg:She said she was much better than before.主：过去时 从：一般过去 She said she was readi
8、ng a story book at seven yesterday.主：一般过去 从：过去进行 He told me that he would take good care of the baby.主：过去 从句：过去将来 She said they had seen this film several times.主：过去 从：过去完成 5.否定转移在主从复合句中，当主句的主语谓第一人称，谓语动词是think、believe、suppose等时，要将从句的否定词转移到主句中，即主句的谓语动词用否定式，而从句的谓语动词用肯定式。eg:I dont think he will come wi
9、th you.I dont think you are right.6.宾语从句的简化(1)当宾语从句的主语和主句的主语相同，且主句的谓语动词是hope,wish,decide,agree,choose等时，从句可简化为不定式结构。eg:I hope that I can receive your e-mail.=I hope to receive your e-mail.(2)当宾语从句的主语和主句的主语相同，且主句的谓语动词是know,remember,forget,learn等时，从句可简化为疑问词+不定式结构。eg:She doesnt know what she should do next.=She doesnt know what to do next.
