英语六级-写作锦囊关键句403. A second reason why workout is becoming m

403. A second reason why workout is becoming more and more popular is due to people's increasing awareness of the importance and need to take better care of themselves and their health.

译文　健身变得越来越流行的第二个原因是人们日渐意识到保持身体健康的重要性和必要性。

点睛　此句可用于表达分论点的主题句中。reason后面接why引导的定语从句来表达观点。be due to用于解释原因；increasing表示“增长的，增加的”，也可用rising或growing来代替。

考点归纳　because of、due to、owing to、on account of和thanks to都是介词短语，用于解释原因，它们的用法比较如下：

because of意为“由于，因为”，强调因果关系，在句中仅作状语，修饰句中的一部分，与其他成分不用逗号隔开。如：

We must not get discouraged because of such a minor setback. 我们决不可因为这样一个小小的挫折而灰心丧气。

owing to也强调因果关系，除作状语外，也可作表语。作状语时修饰整个句子，可在句首或句末，与前面的内容之间用逗号隔开。如：

They decided to cancel the flight, owing to the storm. 由于这场暴风雨，他们决定取消这个航班。

His death was owing to an accident. 他死于一场事故。

due to引出造成后果的原因，可在句中作表语、状语和定语。作表语和状语时与owing to同义；作状语时，一般不与其他成分隔开。如：

This accident was due to (owing to) his careless driving. 这次车祸是由于他开车疏忽大意造成的。

He arrived late due to (owing to) the storm. 由于暴风雨，他来晚了。

Mistakes due to carelessness may have serious consequences. 由于疏忽大意造成的错误可能带来严重的后果。

on account of与because of和owing to同义，但语气较为正式。可作状语、表语，不作定语。如：

He could not come on account of his illness. 他因病不能前来。

That was on account of lack of exercise. 那是由于缺乏锻炼。

thanks to表示“幸亏，多亏”，含有感谢之意，在句中作状语和表语。如：

Thanks to your advice, much trouble was saved. 多亏你的建议，避免了许多麻烦。

句型拓展

A second reason why public transportation should be emphasized over roads and highways is that studies have shown that having more people use public transportation over driving cars greatly cuts down on the pollution in the air. 其次，公交系统之所以比公路和高速路更重要，是因为研究显示，如果使用公交系统的人数多于开车的人数，空气污染程度就会大幅降低。

Another reason for choosing the jewelry is that it's a fashion accessory, as such, can add sparkle and beauty to whatever I am wearing. 我选择珠宝的另一个原因是，珠宝属于时尚装饰品，因此无论我穿什么衣服，它都能将我装扮得美丽夺目。