Esophageal cancer is one of the deadliest cancers.It can be treated when found early，but once it grows the chances of survival drop sharply.The researchers estimate that at least five hundred forty million people have the deficiency，about eight percent of the world's population.

　　Philip Brooks is a researcher at the National Institute in the United States.He says it is important to educate people about the link between the alcohol flushing effect and esophageal cancer.He says doctors should ask East Asian patients about their experiences with facial flushing after drinking alcohol.Those with a history of it should be advised to limit their alcohol use.They should also be warned that cigarette smoking works with the alcohol in a way that further increases the risk of esophageal cancer.

　　【语篇解读】 一些人喝酒后容易脸红，科研人员指出，这是因为体内缺少ALDH2，如果这些人饮酒过量，会增加患食道癌的风险。

　　67．The underlined word“flush”in Paragraph 1 probably means “________”．

　　A．walk unsteadily

　　B．appear unpleasant

　　C．turn red in the face

　　D．talk more than usual

　　答案　C　[词义猜测题。根据第二段Most commonly，their face，neck and sometimes their whole body turn red.可推断，flush意为“脸红”，故答案为C项。]

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