各位大哥大姐大侠们，帮我翻译下这段英语呗，在下不胜感激。小弟在此深鞠一躬啦。

Question

Since S. cerevisiae is only able to metabolise mono-,di- and tri-hexoses, while some raw materials used for the production of potable ethanol (e.g. beer wort and whisky grain mash) contain substantial amounts of polysaccharides such as starch, there is considerable interest in improving the fermentation performance by developing yeast strains that are able to use a wider range of carbohydrates. For example, in the whisky and brewing industries, modified S. cerevisiae strains that are able to hydrolyse and ferment polysaccharides would convert these raw materials to ethanol much more effectively than the current starter culture strains. In an attempt to avoid the use of expensive enzyme preparations (often containing unwanted, contaminating or side activities)in the production of grain whisky, low carbohydrate diabetic beers and low calorie »light« beers, several heterologous amylase-encoding genes have been expressed in S. cerevisiae (9). In some instances, these amylolytic strains have also been improved with respect to their effectiveness to ferment hexoses other than glucose (e.g.maltose and melibiose).
各位大侠，切勿用网站直接翻译那个，不通顺的。小弟分用没了。不好意思了

Answer 1

因为美国酵母只能代谢mono -,di -和三己糖,而一些原料用于生产乙醇的饮料(如啤酒麦芽汁和威士忌粒捣碎)含有大量的多糖如淀粉,有相当大的兴趣在改善发酵性能通过开发酵母菌株,能够使用更广泛的碳水化合物。例如,在酿造工业、修改威士忌和美国酵母株能够水解和发酵多糖将把这些原料乙醇更有效地比当前的发酵剂菌株。为了避免使用昂贵的酶制剂(通常包含不必要的、污染或侧活动)生产谷物威士忌,低碳水化合物和低卡路里»糖尿病啤酒啤酒,几个光«外源淀粉酶编码基因已经被表达在s酵母(9)。在某些情况下,这些淀粉分解的菌株也已经改善了对它们的有效性己糖发酵葡萄糖以外(如。麦芽糖和蜜二糖)。

Answer 2

。。。您这化学生物工业用语太多啦，妹纸爱莫能助。。。

Answer 3

由于酿酒酵母是只能代谢单 - ，二 - 和三 - 己糖，用于食乙醇生产（例如啤酒的麦芽汁和威士忌谷物麦芽浆）而一些原料含有大量的多糖，例如淀粉，有改善通过显影的酵母菌株，能够使用更宽的范围内的碳水化合物发酵性能的相当大的兴趣。例如，在的威士忌和酿造工业，修改，能够水解和发酵多糖，将这些原料的转换，更有效地比当前发酵菌株的乙醇的酿酒酵母菌株。在尝试，以避免使用昂贵的酶制剂（通常包含不想要的，污染或侧活动）谷物威士忌，低碳水化合物糖尿病啤酒和低热量»光«啤酒的生产中，一些异源淀粉酶编码的基因已被表达的酿酒酵母（9）。在某些情况下，这些淀粉的菌株也被相对于它们的有效性提高发酵己糖之外的葡萄糖（egmaltose和蜜二糖（melibiose））。