【Native Speaker每日综合训练—44系列】【44-16】科技 Alcohol

画画2013

Speaker
Drinking alcohol is only availuable to certian people, who happen to have right genes.
To test whether alcohol is benefit for people's heart, scientists compare some men and women, who have heart disease, with other healthy volunteers. In the end, the research reveals that only the people who get the gene, which can work only with booze, lower their probability to get heart disease risk.
However, only 15% of us have this genes. Moderate drinking is good for only this small lucky gene group, and most of us do not get any benefit at all.
Futher experiments and studys are needed to do to test whether the conclusion is right, but we still keep in mind that maybe drinking alcohol is not good for our health.
Time2 2'12【生词啊。。。】
intoxication 中毒，喝醉
fermentation 发酵
inerbriation 酩酊大醉；如痴如醉
enological engineering 葡萄酒工程

To reduce intoxication, scientists have begun to study a new yeast, which can turn small sugar of grape juice into alcohol,to replace the traditional one. However, such a study does not care the side effect that the new kind of wind will bring, and just concern the quality of wines, leaving many healthy problems.
Such a kind of wine demands grapes to hang on the vine longer to contain bigger sugar. The more suger the yeast has to work with, the more alcohol it will make.
Time3 2'23
sommelier 侍酒师
In the market, we can find that wines with high alcohol has better comments than normal one. What is more, having more alocohol makes the violate components in the wines reluctant to diffuse. Stiffer wines may have higher taxes.
However, customers should concern whether drinking such high alocohol wines will result in healthy problems, because such kind is not the so-called wines, literally. Consumers may should consider choosing wines with moderate alcohol.
Time4 1'44
Scientists have tried lots of methods to improve the quality of wines and preserve the ripe flavours, while reduing the alcohol, but they get limitions at the end.
Alan has studied wine yeast for a long time, and he said that the certain method is using modified grape, which customers may not like. So, probably the best way is to find wild yeast, making the winemakers use it easily.
Time5 3'27 【生词啊QAQ。。。
chow 吃
ester 酯
chardonnay 夏敦埃酒
ethyl acetate 乙酸乙酯

No one had found such a wild yeast that could lower alcohol and not hurt the quality of wines. Scientists made an experiment to find which yeast could produce lower alcohol, and they just found 4 kinds of them produced lower than S.cerebosiae did.
To winemakers, they tend to make their productions complex. Using dual yeasts may causes higher alcohol, but they can make fewer voliate acids and enhance the complexity of the wine, meaning that winemakers could use different yeasts to creat different alcohols and to lower the alcohol in the same time.
Time6 1'26
Informal taste tests are promising, and there still another strain of yeast of some species is still awaiting people to discovery.

Obstacle 11'55 【全是生词……
hangovers 宿醉，残留物；后遗症
gastrointestinal 胃肠的
acetaldehyde 乙醛
nausea 恶心；晕船
acetate 磷酸盐
dialysis 透析；渗析
ethanol 乙醇；酒精
main idea: The main reasons that cause hangover and how to cure it.

Scientists found that human body cannot metabolize alcohol fully, so that people always feel nausea and other bad side effects at the next day after drinking alcohol at night.
It seems that acetaldehyde is the main factor that causes hangover.
How to cure hangover? Chinese scientists found that imbibe little softer beverage, such as Sprite and 7-UP, can help. Meanwhile, drinking some coffee an an aspirin can also cure your hangover.