未分类题

Diet，Alcohol Linked to Nearly one Third of Cancers
Diet is second only to tobacco as a leading______（1）of cancer and，a1ong with alcohol, is responsible for nearly one third of cases of the disease______ （2）developed countries，a leading researcher said on Tuesday．
Dr．Tim Kev，of the University of Oxford，told a cancer conference that scientists are still discovering how certain foods contribute to______ （3），but they know that diet，alcohol and obesity______（4）a major rolE.
“Five percent of cancers could be avoided______ （5） nobody was obese，”he saiD.While tobacco is linked to about 30______ （6）of cancer cases，diet is involved in all estimated 25 percent and alcohol______ （7） about six percent．
Obesity raises he______（8）of breast，womb，bowel and kidney cancer，while alcohol is known to cause cancers of the mouth，throat and liver． Its dangerous impact is______ （9） when combined with smoking．
Key told the meeting of the charity Cancer Research UK______ （10） other elements of diet linked to cancer are______ （11） unknown but scientists are hoping that the EPIC study，which is comparing the diets of 500，000people in 10 countries and their risk of cancer，will provide some______ （12）．
Early results of the study have revealed that Norway，Sweden and Denmark have the consumption of fruit and vegetables among European countries while Italy and Spain have the highest．Eating at ______14）five portions of fruit and Vegetables a day is recommended to reduce the risk of cancer.
Key，principal scientist on the EPIC study，said it is looking at dietary links to some of the most common cancers______（15）colorectal, breast and prostatE.
第 1 题
A.course
B.cause
C.court
D.reason