句子类型（1）
1. 简单句 私家车越少就意味着交通堵塞越少。_________________________________________
The exhaust gas and irritating noise impair people’s health greatly.
Today's parents spend too little time staying with their children and use television to make their children keep quiet.
Nowadays, an increasing number of people do not wear their national clothes, thus forgetting their culture and their history.
2. 并列句（平行结构）Some people live in one community all their lives, while others move around almost as much as nomads.
Both of tourists and hosts should respect reciprocal (mutual) customs and culture.
.A person's living environment can greatly affect both his physical and mental health.
Paid-work helps a student to develop greater independence, and earning his own pocket money can teach him how to handle his finances.
On one hand, teachers can impart knowledge to students; on the other hand, they can educate them how to be real persons.一方面教师可以向学生传授知识，另一方面又教育他们怎样做人
3. 复合句
1)主语从句 Those who____ can____.Those who hardly eat meat in daily life (Vegetarians, Antivivisectionists)can prevent some serious diseases caused by unsanitary meat.
An increasing number of people come to realize that the disappearance of some endangered species of animals will pose a serious threat to the equilibrium of ecosystem.
2) 宾语从句
Many experts point out that physical exercise contributes considerably to a person’s physical fitness.
许多专家指出体育锻炼极大地有助于身体健康。An increasing number of people come to realize that the disappearance of animals will result in serious threat to the equilibrium of ecosystem eventually.The decline of British industry has meant that poorly educated men, in particular, have fewer job opportunities.
3) 表语从句The flaw in this explanation is that British teenagers are, in general, richer, better educated and wealthier than ever.
4) 定语从句 Running theaters and stadiums can earn much money that can contribute substantially to other fields, including medical care, and education.
Only in these times where competition is becoming increasingly fierce, university graduates find it hard to obtain a job.
Children with parents whose guidance is firm, consistent, and rational are inclined to possess high levels of self-confidence. 父母的教导如果坚定，始终如一和理性，孩子就有可能充满自信。
Water, which is essential for life, can quickly become the only thing that matters if there is a threat to our water supply. 水对生命至关重要，如果供水成了威胁，很快就会变成关键的问题
5) 状语从句 见课堂笔记(重点掌握)
6）同位语从句Some people hold the opinion that preventing wild animals from dying out is a waste of resources.
句子类型（2）
4. 并列复合句
____, and____,which____.
Undoubtedly, practical courses can be used to the reality, and it is easier for university students to realize their potentials and talents, which is of vital importance to their further development in the future.
There are many dangers that one can face in a new and different environment and the best way to protect yourself is to be well aware of possible dangers before you depart.
5. 多重复合句
Many parents point out that children spend too much time playing computer games which have little educational value, so children should be prevented from computer games.
However, we must admit that it would be a mistake to neglect theoretical knowledge in that they are the cornerstones of many practical courses and help students cultivate their logical thinking and judgment.
许多人认为有国外学历的人比没有的人赚的多。
事实上，有无数大学毕业生报怨他们在学校里学到的知识却不能转变为有用的工作技能。
应该创造这样一种环境，孩子们可以充分发挥他们的才能和潜力，以便长大后为社会作出的贡献。
当机会到来的时侯，只有作好充分准备的人才会优胜于他们的同龄人，因为他们提前付出了艰苦的努力。
尽管这一观点被广泛接受, 很少有证据表明暴力犯罪率与大众媒体的暴力数量有直接关系。
大部分学生相信业余工作会使他们有更多机会发展人际交往能力, 而这对他们未来找工作是非常有好处的。许多市民抱怨城市污染严重, 以至于他们每天都要吸入有毒的气体, 这对他们的健康是十分有害的。
