雅思写作核心语法知识总结.docVIP

雅思写作核心语法知识总结 ( 一 ) 句子构成 　　句子构成的成分共分为九种：主语，谓语，宾语，表语，定语，状语，补语，同位语和插入语。 　　一、主语：句子的核心主体，通常位于谓语动词之前，表明一个句子是谁或何种情况所发出执行或是承受的。在写作中常做主语的有名词、代词、主语从句、 V-ing 、 To do 五种。 　　 1 名词： Computers are now being widely used in almost all fields. 　　 2 代词： We are now living in an information-explosion era. 　　 3 主语从句： Whether sports stars should earn a high salary is still discussed heatedly. 　　 4 V-ing: Surfing the Internet offers a new way for people to relax themselves. 　　 5 To do: To protect the environment is everybody ’ s business. 　　二、谓语：描述或阐述主语的情况，由动词来充当，常位于主语之后。 　　 1 表状态用系动词： As I see it, movie stars ’ earning a high salary is unfair and unjustified. 　　 2 表动作用及物或不及物动词： The Internet has revolutionized people ’ s way of life. Taste differs. 　　 3 表拥有：人或物时用： have has 无生命的东西： there be 　　 People have different views on this question. 　　 There is no absolute agreement on this question. 　　 4 情态动词＋动词原形： 　　 In this way, teachers can never be replaced by computers. 　　三、宾语：及物动词或介词所指向的对象。在写作中常做宾语的有名词、宾语从句、复合结构、 V-ing 、 To do 五种。 　　 1 名词作宾语： International tourism promotes the economic development. 　　 2 宾语从句作宾语： Some people hold that air travel should be restricted. 　　 3 复合结构： The advanced medical technology has made it possible for people to live longer than ever possible before. 　　 4 V-ing: Nobody can avoid being influenced by media. 　　 5 To do: Some people want to work for a big company while others choose to work for a small one. 　　四、表语：接在系动词后，补充说明主语的情况又称为主语补足语。在写作中常做表语的有名词、形容词、 V-ing 、 To do 、从句五种。 　　 1 名词： The environmental problem is a serious problem in modern society. 　　 2 形容词： Time is fleeing and art is long. 　　 3V-ing: The argument is convincing. 　　 4 To do: A possible solution is to set down effective laws. 　　 5 从句： One advantage of computers ’ utilized in education is that they can enrich the traditional teaching method to a great extent. 　　五、定语：修饰名词或类似于名词的词。一般翻译为“…… .. 的”，表示事物性质或状态，分为前置或后置。在写作中常做定语的有形容词、名词、 V-ing 、 To do 、从句五种。 　　 1 形容词： Taking part