For many years British people have been __1__ to eat at least 'five- a-day' – that is five items of fruit or vegetables every day__2__ improve their health and __3__ the likelihood of illness, __4__ cancer.
The recommendation was first __5__in 1990 by the World Health Organization which said that the 'five-a-day' diet could __6__ cancer and other chronic diseases.
__7__ the advice has been a mainstay （支柱） of public health policies in many developed countries, such as the UK, __8__ the population eat a high__9__ of junk food.
Many health campaigns have __10__ the advice, and indeed much food packaging in Britain states how the __11__ will constitute part of your five- a-day.
_12___, a study of 500,000 Europeans from 10 different countries refutes （驳斥） the commonly-believed __13__ that up to 50% of cancers could be prevented by _14___ the public's consumption of fruit and vegetables.
Instead the study, which is _15__ by researchers from a well-respected New Yorkmedical school, __16__ that only 2.5% of cancers could be averted by eating more fruit and vegetables.
It seems that the __17__ to avoiding cancers is to have an overall healthy lifestyle __18__ includes not smoking or drinking a lot of alcohol, taking exercise and avoiding obesity (肥胖症）.
But medical charities have spoken out to __19__ people that diet is an important factor in staying healthy, and that even a 2.5% reduction __20__ cancers is still a positive step.
1
A. compelled
B. recommended
C. proposed
D. required
2
A. in order to
B. such that
C. as to
D. so that
3
A. decline
B. undermine
C. destroy
D. reduce
4
A. in essence
B. in total
C. in particular
D. in depth
5
A. put across
B. put down
C. put forward
D. put up
6
A. prevent
B. check
C. escape
D. avoid
7
A. For the time
B. At present
C. Little by little
D. Since then
8
A. where
B. when
C. that
D. which
9
A. division
B. proportion
C. component
D. section
10
A. mentioned
B. declared
C. promoted
D. reflected
11
A. materials
B. contents
C. supplies
D. resources
12
A. Similarly
B. Though
C. Therefore
D. However
13
A. goal
B. method
C. plan
D. suggestion
14
A. lessening
B. diminishing
C. increasing
D. rising
15
A. led
B. guided
C. managed
D. introduced
16
A. estimates
B. adopts
C. ensures
D. approves
17
A. aim
B. key
C. objective
D. way
18
A. what
B. this
C. which
D. it
19
A. recall
B. propose
C. arouse
D. remind
20
A. in
B. on
C. to
D. of
