一、表示原因的英语句型
表示原因的英语句型如下：
1、提问+One reason is that...Another is sth/that+句子。
2、It is back in fashion for several reasons+具体原因说明+There are other factors，too+具体原因说明。
3、because of意为“因为，由于”，普通用语，比其他短语更口语化；构成的短语在句子中通常作状语，一般不作表语用；若引导表语，主语通常应为代词。后面可接名词、代词、分词或what引导的名词性从句等。
4、due to“由于，因......造成”，按照传统语法：due to主要引导表语，但是在现代英语中，due to也可用来引导状语（此时不用于句首），也可作定语。His illness is due to bad food.他生病是由于吃了不好的食物。
5、thanks to“由于或因为某人（某事）”，通常用于好的方面，译为“多亏”，引导的介词短语可置于句首或句末。
英语的独立主格结构：
由名词（或代同）+分同（或形容词、个定式、介同短语、副词等）构成。可以用来作原因状语。
1、John being away，Henry had to do the work.由于约翰不在，只好由亨利来做这个工作。
2、When she was fifty she retired,her health having been impaired by years of over work.她五十岁时退休了。（因为）多年劳累把她的身体搞垮了。
二、表原因的高级表达英语 表原因的高级表达英语句型
1、That is why…那就是为什么……。
（1）Sports keep him healthy. That is why he loves sports.
运动使他保持健康。那就是他喜欢运动的原因。
等于He loves sports because sports keep him healthy.
他喜欢运动，因为运动使他保持健康。
（2）He works hard every day. That is why he succeeds.
他每天都努力工作。这就是他成功的原因。
2、A make B possible. A使得B成为可能。（因为A，B才得以实现）
（1）In the late 14th century, fast and sturdy ships made long-distance voyages possible.在14世纪后期，又快又结实的轮船使得长途海上旅行成为可能。（意思是因为有了又快又结实的轮船，所以可以进行长途海上旅行。）
（2）His inventions made progress of technology possible.他的发明使得科技的进步得以实现。
三、引出原因的英语句型
提问+One reason is that... Another is sth/that+句子
It is back in fashion for several reasons.+具体原因说明+There are other factors, too.+具体原因说明扩展资料
例句：
1、Why do researchers from MIT predict that by the middle of the century, more than half of humanity will live in water-stressed areas? One reason is that as the world’s population grows larger and richer, it uses more water. Another is climate change, which accelerates hydrologic cycles, making wet places wetter and dry places drier.
一个原因是随着世界人口增长，人口越来越富裕，它需要更多的水。另一个原因是气候变化，它加速了水文循环，使潮湿的地方更加潮湿，干燥的'地方更干燥。
2、It is back in fashion for several reasons. Some firms need to repair the damage from the pandemic. The tech boom means unicorns can go public at sky-high valuations. There are other factors, too. More Chinese firms are coming of age.
它再次流行有几个原因。一些公司需要补救新冠大流行造成的损害。科技繁荣意味着独角兽企业可以以极高的估值上市。还有其他因素。越来越多的中国企业正走向成熟
四、中考表示原因的英语句型
摘：（可能不完整）
1.There are some good(two possible)reasons for…（分析原因）人民生活状况的改善原因有两点。首先，我们一直在贯彻执行改革开放政策。其次，国民经济正在迅速发展，而且出生率已经得到控制。
There are two reasons for the improvement in people's living conditions. In the first place，we have been carrying out the reform and opening-up policy. Secondly，there has been a rapid expansion of our national economy.Further-more，the birth rate has been put under control.
2.My suggestions to deal with the problem are as follows. In the first place，… Secondly，…Finally…
（提出建议）我对解决这个问题的建议如下。首先，迫在眉睫的是建立自然保护区。其次，有些濒临灭绝的珍稀野生动物应该收捕、人工喂养并繁殖。最后……
My suggestions to deal with the problem are as follows.To begin with，it is urgent to create nature reserves.Secondly，certain rare wild animals that are going to be extinct should be collected，fed and reproduced artificially. Finally，those who hunter them must be punished severely.
3.Different people have different opinions on this question.Some people believe that… Others problem.matter.argue that… Still others assert that…
（论述不同看法）人们对失败持有不同的态度。面对失败，有人能够经得起
考验，从失败中汲取教训，并努力去完成他们下定决心要做的事情。然而，另一些人却丧失信心并退却了。
People differ in their attitudes towards failure. Faced with it，some of them can stand up to it.draw useful lessons from it and try hard to fulfill what they are determined to do. Others，however，lose heart and give in.
4.It is important（nessary， urgent， difficult， easy， expensive， desirable， abvisable， convenient， comfortable）for sb. to do sth.（发表意见）人们希望建立更多的医院、购物中心、娱乐中心、电影院和其他公用设施来满足人民日益增长的需求。
It is desirable to build more hospitals，shopping centres，recreation centres，cinemas and other public facilities to meet the growing needs of people.
5.As a popular saying goes"Everything has two sides."（分析利弊）常言道：“事物总是一分为二的”。如今人们从科技发明中得到越来越多的好处。另一方面，科技进步也给我们带来了许多麻烦。现在许多国家的人民饱尝公害之苦。
As a popular saying goes，"Everything has two sides." Now people（the public）are benefiting more and more from scientific and technological inventions. On the other hand，the progress of science and technology is bringing us a lot of trouble. People in many countries are srffering from public hazards.
6.For example，…（举例阐述）For instance，…Let's take…for examlpe.
就拿汽车为例。汽车不仅污染城市空气，而且使城市拥挤不堪。此外，汽车造成许多交通事故。汽车所产生的噪音使居住在街道两旁的居民日夜不得安宁。
Les's take cars for example.They not only pollute the air in cities，but make them crowed.Furthermore，they carse a lot of traffic accidents.（…，they are responsible for a lot of traffic accidents.） The noise made by cars disturbs the residents living on both sides of streets all day and night.
7.It is generally believed that…accepted（引证观点）thoughtheld普遍认为，在发达国家人口增长的主要原因与其说是出生率的上升，还不如说是由于医疗保健的改善的使死亡率下降了。
It is generally believed（=thought） that the chief reason for the increase in population in developed coutries is not so much the rise in birth rates as the decline in death rates as a result of the improvement in medical care.
8.…causes（produces， brings about， leads to， results in…）（因果关系）毫无疑问，需求的增长导致了价格的上涨。
There is no doubt that the increase in demand causes（results in/leads to） the rise in prices.