现在所有的人，无论他是什么民族、什么国家，都不得不承认我们当前居住的地球环境因为全球变暖而日益变得无法忍受。根据许多专家的说法，更大的灾难还会接踵而至。
造成这样的问题原因有很多，首先，人类进行的大量碳排放的行为，是现在以及将来的地球变暖的首要原因，其次，对环境保护重要性的知识缺失也是阻扰解决这一问题的重要原因。
我们应立即采取有效措施来解决地球变暖，这已经是迫在眉睫了。第一，应种植大量的树木来改善环境；第二，应该制定全球变暖相关的更加严格的法律措施。总之，在我们再次可以享受地球之前需要有很漫长的努力过程。
免费参观博物馆
现在，越来越多的博物馆对公众实行免费开放。免费进入博物馆参观可以激发人们对历史、艺术和科学的兴趣。这样，博物馆就为公众获取知识提供了一条捷径，这对于整个民族是非常重要的。
但是，一些人认为博物馆免费开放会带来很多的问题。大家都可以免费进入，肯定会造成拥挤，而且给展品保养也带来了麻烦，另外，博物馆会面临由于免费开放后带来的资金困境，随着利润的减少，很难再更新展品，长此以往，过时的博物馆不得不面对关门的命运。
在我看来，博物馆免费开放给公众带来了好处，但是也会给博物馆的经营带来不少问题。政府一个对他们提供必要的帮助，以便他们能更好地服务公众。
举例时的常用句型
1.Take sth/sb as an example. 2. Cite sth/sb as an example 3. sth is a case in point
4. a case in point is sth / sb/that young people are all pursuing personal happiness.
She is an case in point. / She is no exception.
5. 关于自身的例句：I have had such experiences for many times
表达有人“ 认为”时的句型 1. Sb believes that 2. Sb argues that
3. Sb holds firmly to the view that 4. Sb maintains that
表达另一种不同观点时的转折连词 1. While
2. On the contrary 3. However 4. In contrast,
使用率最高、覆盖面最广的基本句式 1.表示原因
1)There are three reasons responsible for the situation. 2)The reasons for this are as follows.
3) There are three major reasons that can explain the situation. 4) There are three reasons that can account for the phenomenon. 5) The situations are due to a, b and c.
6) There are three reasons that contribute to the situation.
2.表示好处
1)It has the following advantages 2)It is beneficial to us.
3)It benefits us quite a lot. 4)It is of great benefit to us.
3.表示坏处
1)It has more disadvantages than advantages. 2)It does us much harm. 3)It is harmful to us.
4. 必要、困难、方便、可能
1)It is important(necessary，difficult，convenient， possible)for sb.to do sth. 2)We think it necessary to do sth. 3) The chances of doing sth is slim. Chances are that sb will do sth. Sb is very likely to do sth
The bicycle is of importance for us.
The bicycle plays an important role in our life.
The bicycle, environmental friendliness vehicle, plays an important role in our life
使文章精彩的插入语
所谓插入语，英语中有两种形式。一种是有两个逗号之间引起的成分称之为插入语；第二种是有两个半破折号引起的成分称之为插入语。
突出主语,使用同位语或非限制性定语从句
如：１）Jinan, the Spring City, is a famous tourist city.
２） He, who would like to play basketball, is a good student. 解释作用
People, especially students, should work hard.
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