人教新课标高中英语必修四Unit 4 Body language课件(3)

人教新课标高中英语必修四Unit 4 Body language课件(5)

人教新课标高中英语必修四Unit 4 Body language课件(2)

1、SQL (Structured query Language,结构化查询 语言)，功能包括查询、操纵、定义、控制。 2、功能丰富、语言简洁、使用灵活，倍受欢迎。 3、1974年由Boyce,Chamberlin提出，1975年在IBM 公司的System R上首次实现。原型称为SEQUEL(Structured English QUEry Language).1986年ANSI SQL-86标准，是第一个SQL 标准

CEL is an interpreted, declarative language which enables users to enhance simulations without recourse to external fortran routines. It uses mathematical expressions for physical quantities as opposed to using fixed values. Access to CFX-5 internal variables (including solution variables)

3-3 Subject Retrieval Language 一、主题检索语言的概念与特点 二、主题检索语言的基本类型 三、《汉语主题词表》与文献标引

3-2 Classification Retrieval Language 一、分类检索语言的概念 二、分类检索语言的类型 三、分类法词表与分类标引

Social meaning is that which a piece of language conveys about the social circumstances of its use. In part, we decode the social meaning of a text through our recognition of different dimensions and levels of style within the same language

Chap3 Retrieval Language 3-1检索语言概述 3-2分类检索语言 3-3主题检索语言

How to Improve Your Spoken English literature: instrumental and integrative motivation. Instrumental motivation is one in which the learner desires to use the language as a tool to achieve some desirable ends. In contrast, an integrative motivation is one in which \learners may choose to learn a particular L2 because they are interested in the people and culture represented by the target-language group\(Ellis, 1997, p75). In various contexts, both motivations have proved important. Of course, students can have both types of motivation at the same time