19．More than four in 10cancers-600，000in the UK alone-could be prevented if people led healthier lives，say experts．The population of the UK is about 63，000，000．
Latest figures from Cancer Research UK show smoking is the biggest avoidable risk factor，followed by unhealthy diets．It advises people to live healthily，limit alcohol intake and do regular exercise．
According to the figures from 2007to 2011，more than 300，000cases of cancer recorded were linked to smoking．A further 145，000were linked to unhealthy diets containing too much processed food．Obesity contributed to 88，000cases and alcohol to 62，200．Sun damage to the skin and physical inactivity were also contributing factors．
Professor Max Parkin，a Cancer Research UK researcher，says："There's now little doubt that certain lifestyle choices can have a big influence on cancer risk，with research around the world all pointing to the same key risk factors．
"Of course everyone wants to enjoy some extra treats during the Christmas holidays so we don't want to ban beef pies and wine but it's a good time to think about taking up some healthy habits for 2015．
"Leading a healthy lifestyle can't guarantee someone won't get cancer but  we can stack the odds in our favour by taking positive steps．"
Public Health England says a healthy lifestyle can play an important role in reducing cancer risk．It says campaigns such as Smokefree，Dry January and Change4Life Sugar Swaps all aim to raise public awareness．It's important that we continue to make progress in noticing cancer earlier and improving treatments，but helping people understand how they can reduce their risk of developing cancer in the first place remains important in dealing with cancer．

28．Which of the following is the third biggest avoidable cancer factor？A
A．Obesity．
B．Alcohol intake．
C．Unhealthy diets．
D．Physical inactivity．
29．According to Professor Max Parkin，A．
A．it's OK to drink wine during festivals
B．the causes of cancer are still unclear now
C．unhealthy food should be completely banned
D．a(chǎn) healthy lifestyle will protect us from cancer
30．By saying the underlined words in Paragraph 6，Professor Max Parkin means we canD．
A．help others
B．improve our lives
C．discover cancer early
D．decrease our cancer risk
31．What's the main idea of the text？B
A．Most cancers are caused by smoking．
B．Cancer is greatly linked to our lifestyle．
C．There are different factors that lead to cancer．
D．Public awareness should be raised to prevent cancer．

分析 本文是說明文閱讀，作者通過這篇文章向我們講述了專家們認為，如果我們擁有健康的生活方式，那么超過十分之四的癌癥是可以避免的，因此作者鼓勵我們要擁有健康的生活方式．

解答 28．A．細節(jié)理解題．根據(jù)第三段more than 300，000cases of cancer recorded were linked to smoking．A further 145，000were linked to unhealthy diets containing too much processed food．Obesity contributed to 88，000cases and alcohol to 62，200．可知可避免的致癌因素中排名第一的是吸煙，第二是不健康的飲食，第三是肥胖，第四是喝酒．故選A．
29．A．細節(jié)理解題．根據(jù)第五段Of course everyone wants to enjoy some extra treats during the Christmas holidays so we don't want to ban beef pies and wine but it's a good time to think about taking up some healthy habits for 2015．可知Max Parkin教授雖然極力倡導健康的生活方式，但他認為節(jié)假日期間少量喝酒還是可以的．故選A．
30．D．句意理解題．根據(jù)第四段中的There's now little doubt that certain lifestyle choices can have a big influence on cancer risk可知生活方式的選擇對得癌癥的幾率有很大的影響．因此健康的生活方式雖然不能確保我們不得癌癥，但可以"降低我們得癌癥的幾率"．故選D．
31．B．主旨大意題．本文前三段通過數(shù)據(jù)等說明可避免的致癌因素的前幾名都跟生活方式有關，第四、五、六段引用Max Parkin教授的話進一步證明了生活方式與癌癥之間的關系，最后一段通過英國公共衛(wèi)生局的官方發(fā)言再一次說明了健康的生活方式可以降低得癌癥的幾率，因此主要說明了癌癥與我們的生活方式有很大的聯(lián)系．故選B．

點評 考查學生的細節(jié)理解和推理判斷能力．做細節(jié)理解題時一定要找到文章中的原句，和題干進行比較，再做出正確選擇．在做推理判斷題時不要以個人的主觀想象代替文章的事實，要根據(jù)文章事實進行合乎邏輯的推理判斷．

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