英语作文万能句子表示原因1) There are three reasons for …2) The reasons for … are as follows.3) The reason for … is that…4) We have good reasons to believe that…例句:There are three reasons for the changes that have taken place in our life.我们的生活发生改变，原因有三。

Firstly, people's living standard has been greatly improved.第一，人们的生活水平显著提高。

Secondly, most people are well paid, and they can afford what they need or like.第二，大多数人薪资尚可，他们能够支付自己需要和喜欢的东西。

Last but not least, more people prefer to enjoy modern life.最后不得不说的是，更多人选择享受现代生活。

表示好处1) It has (the) following advantages.2) It benefits us quite a lot.3) It is beneficial to us.4) It is of great benefit to us.例如:Books are like friends.书如好友。

They can help us know the world better, open our minds and widen our horizons.他们能帮助我们更好地了解世界，开阔心境和提升眼界。

Therefore, reading extensively is of great benefit to us.因此，广泛地阅读对我们颇多益处。

表示坏处1) It has more disadvantages than advantages.2) It does us much harm.3) It is harmful to us.例如:However, everything divides into two.然而，凡事皆有两面性。

Television can also be harmful to us.电视对我们而言，也是有害的。

It can do harm to our health if we spend too much time watching television.如果我们花太多时间看电视，会有损于我们的健康。

表示重要1) It is important / necessary for sb. to do sth.2) We think it necessary to do sth.3) It plays an important role in our life.例如:Computers are now being used everywhere, whether in the government, in schools or in business.如今，无论是在政府里、学校里还是公司里，电脑都被广泛使用。

We have good reasons to say that computers are playing an increasingly important role in our life.我们有充分的理由可以说，电脑在生活中扮演者越来越重要的角色。

表示措施1) We should take some effective measures.2) We should try our best to overcome (conquer) the difficulties.3) We should do our utmost in doing sth.4) We should solve the problems that we are confronted (faced) with.例如:The housing problem that we are confronted with is becoming more serious.我们所面临的房屋问题日益严重。

Therefore, we must take some effective measures to solve it.因此，我们必须采取有效措施解决该问题。

表示变化1) Some changes have taken place in the past five years.2) A great change will certainly be produced in the world's communications.3) The computer has brought about many changes in education.例如:Some changes have taken place in people's diet in the past five years.过去五年，人们的饮食结构发生了不少变化。

The major reasons for these changes are not far to seek.这些变化出现的主要原因不久就能被找到。

表示事实、现状1) We cannot ignore the fact that …2) No one can deny the fact that …3) There is no denying the fact that …4) This is a phenomenon that many people are interested in.5)However, that's not the case.例如:We cannot ignore the fact that industrialization brings with it theproblems of pollution.我们不能忽视的事实是工业化带来了环境污染的问题。

To solve these problems, we can start by educating the public about the hazards of pollution.为了解决这些问题，我们从告知大众污染的危害开始。

The government should also design stricter laws to promote a cleaner environment.政府也应该制定更严格的法规，以此让环境更整洁。

表示比较1) Compared with A，B …2) I prefer to read rather than watch TV.3) I prefer reading rather than watching TV.4) There is a striking contrast between them.例如:Compared with cars, bicycles have several advantages besides being affordable.与汽车相比，自行车除了价格便宜，还有不少优点。

Firstly, they won't consume natural resources of petroleum.第一，它们不会耗费太多石油的自然资源。

Secondly, they won't cause the pollution.第二，它们不会导致环境污染。

Last but not least，they contribute to people's health by giving themdue physical exercise.最后不得不提的是，它们可以通过适当的运动让人们更健康。

表示数量1) It has increased (decreased) from …2) The population in this city has now increased (decreased) to …3) The output of July in this factory increased by 15% compared with that of January.例如:With the improvement of the living standard, the proportion of people's income that spent on food has decreased while that spent on education has increased.随着生活水平的提高，人们在食物上所花费的收入减少，同时在教育上的花费有所增加。

表示看法1) People have (take) different attitudes towards sth.2) People have different opinions on …3) People take different views of (on) the question.4) Some people believe that..Others argue that …例如:People have different attitudes towards failure.人们对失败持有不同态度。

Some believe that failure leads to success.一部分人相信，失败是成功之母。

Every failure they experience translates into a greater chance of success at their renewed endeavor.通过不懈的努力，每次经历的失败都会有极大的成功几率。

However，others are easily discouraged by failures and put themselves into the category of losers.然而，另一部分人很容易因失败而受到挫折，并把自己归为失败者。

表示结论1)In short, it can be said that …2) It may be briefly summed up as follows.3)From what has been mentioned above, we can come to the conclusion that …例如:From what has been mentioned above，we can come to the conclusion that examination is necessary, however, its method should be improved.由已知可得出结论，检测是有必要的，但方法需要改进。