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完形填空：

Diet,Alcohol Linked to Nearly One Third of Cancers

Diet is second only to tobacco as a leading ____1____ of cancer and,along with alcohol,is responsible for nearly one third of cases of the disease ____2____ developed countries,a leading researcher said on Tuesday.

Dr.Tim Key,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 an estimated 25 percent and alcohol ____7____ about six percent.

Obesity raises the ____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 500,000 people 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 ____13____ 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 EPIC study,said it is looking at dietary links to some of the most common cancers ____15____ colorectal,breast and prostate.

1.________.

A.course

B.cause

C.court

D.reason

正確答案：B

答案解析：從文章的題目可以得知，文章的主要內容涉及飲食.酒精與癌癥的關系。不難看出，文章一開頭講的就是飲食是導致癌癥的主要原因之一，吸煙排名第一，飲食緊跟其后。

2.________.

A.on

B.up

C.in

D.down

正確答案：C

答案解析：此處要表達的意思是"在發(fā)達國家”。

3.________.

A.cancer

B.health

C.disease

D.man

正確答案：A

答案解析：既然文章主要涉及飲食.酒精與癌癥的關系，因此，此處應選"癌癥”一詞。

4.________.

A.dance

B.turn

C.take

D.play

正確答案：D

答案解析：從接下來的"角色”一詞，便可得知此處應選能與之搭配的"扮演”一詞。

5.________.

A.while

B.if

C.unless

D.since

正確答案：B

答案解析：前一句講道，飲食.喝酒與肥胖在癌癥發(fā)生的過程中扮演重要角色，此句應為虛擬句，表示假設。

6.________.

A.percent

B.countries

C.people

D.number

正確答案：A

答案解析：從句子的主旬不難看出，此處表示的是百分之多少的意思。

7.________.

A.at

B.in

C.of

D.for

正確答案：B

答案解析：此處應該填一個與前面介詞in一樣的介詞。

8.________.

A.risk

B.degree

C.presence

D.place

正確答案：A

答案解析：顯然此處要表示的意思是肥胖增加某些類癌癥的危險。

9.________.

A.reduced

B.increased

C.mysterious

D.seen

正確答案：B

答案解析：一個人既喝酒，又吸煙，那酒精的害處應該是增加的。

10.________.

A.whether

B.why

C.that

D.if

正確答案：C

答案解析：此處應選能引導賓語從旬的連接詞。

11.________.

A.still

B.also

C.although

D.however

正確答案：A

答案解析：此處要表示的意思是"仍舊不得而知”。

12.________.

A.decisions

B.questions

C.answers

D.needs

正確答案：C

答案解析：從前面提到的"仍舊不得而知，但是科學家們希望”等詞語可以推斷，此處應選"答案”。

13.________.

A.lowest

B.enough

C.daily

D.perfect

正確答案：A

答案解析：從句子的最后一詞highest便可得知，此處應選該詞的反義詞。

14.________.

A.home

B.most

C.least

D.best

正確答案：C

答案解析：眾所周知，專家們多建議多吃水果.蔬菜以減少癌癥的危險，可見此處應選表示"至少”意思的詞語。

15.________.

A.causing

B.including

C.illustrating

D.defining

正確答案：B

答案解析：空格之前提到了一些最常見的癌癥，接下來舉的是例子，因此此處應選表示"像，包括”等意的詞語。

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