从句
1.名词性从句：主语从句，宾语从句，表语从句和同位语从句
A主语从句：
That引导(通常用it作形式主语)：It’s imperative that the government should be effectively involved in the comprehensive management of both public and private schools.政府有必要有效地参与到公立和私立学校的管理中来。
What引导：What we emphasize is that formal examination is harmful to students' creativity.我们强调的是考试对学生的创造力有害。
B表语从句
The great contribution of public school is that poor students have easier access to receive education.公立学校的巨大贡献是使贫困学生有了更容易获得教育的途径。
C 宾语从句
What引导：They want to imitate what they see.他们想要模仿他们看到的东西。
That引导：Other people hold that eradication of ancient buildings is the natural process of urban development.其他人认为拆除古老建筑是城市发展的自然进程。
D 同位语从句
Prejudice against women violates the fundamental principle that all people are created on equal terms.对妇女的偏见违反了人生来都是平等的基本原则。
2. 形容词性从句——定语从句
Nowadays, more and more people agree that smoking is an unwholesome hobby, which is equivalent to committing suicide.现在越来越多的人同意吸烟是一个不健康的爱好，它等同于自杀。
3. 副词性从句——状语从句
状语从句包括时间、地点、原因、目的、结果、条件、比较、让步等。
简单句
1.分词做状语或定语分词有两种形式：现在分词和过去分词
Living far from home, one would suffer from loneliness and homesickness.离家生活，人们遭受孤独和思乡之苦。
Prompted by the great leap of science and technology, work today is more demanding than it used to be.受到科技进步的促使，现在的工作比过去要求更高。
The commodities and services advertised by super stars tend to enjoy higher sales than those not advertised.由明星代言的产品和服务比没有广告的销售量更高。
2. 介词短语做状语
With the limited budget, the government is unable to invest much money in art projects.预算很有限，政府不能投资很多钱在艺术项目上。
3. 有些时候，两个或多个谓语共用一个主语
Formal examinations put great stress on students, generate an unhealthy spirit of jealousy and competition, and even bring about psychological problems.考试给学生带来很大压力，产生不良的嫉妒和竞争感，甚至带来心理问题。
插入语
经常可做插入语的表达包括：therefore, however, in the long run, to some extent, as..., for example, etc.
Students who have part-time jobs can relieve, to some extent, the economic burdens of their parents.做兼职的学生在某种程度上能减轻他们父母的经济负担。
