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According to a review of evidence in a medical journal, runners live three years 1 (long)than non-runners. You don't have to run fast or for long. 2 (see) the benefit. You may drink, smoke, be overweight and still reduce your risk of 3 (die) early by running. While running regularly can't make you live forever,the review says it 4 (be) more effective at lengthening life 5 walking, cycling or swimming. Two of the authors of the review also made a study published in 2014 6 showed a mere five to 10 minutes a day of running reduced the risk of heart disease and early deaths from all 7 (cause).
The best exercise is the one that you enjoy and will do.But otherwise.it's probably running. To avoid knee pain, you can run on soft surfaces, do exercises to 8 (strength) your leg muscles, avoid hills and get good running shoes.
Running is cheap, easy and it's always 9 (energy). If you are time poor, you need run for only half the time to get the same benefits as other sports, so perhaps
we should all give 10 a try.
1 2. 3 4 5.
6 7. 8. 9. 10
1.longer【解析】考查副词的比较级。根据后面的than可知，此处是个比较句，要用比较级形式。 long的比较级为longer。句意：跑步的人比不跑步的人要多活三年。
2.to see 【解析】考查动词不定式表目的。句中已有谓语动词don't have to, 则此空应填非谓语动词，根据句意，你不需要跑得很快或很久去看到好处。动词不定式表目的。
3.dying 【解析】考查动名词做宾语。 of为介词，则后应接die的动名词形式dying。
4.is【解析】考查谓语动词。 says后面接宾语从句，而从句缺少谓语动词，又因为时态为一般现在时，主语为it第三人称单数，因此be动词应为一般现在时的三单形式is。
5.than 【解析】考查介词。根据句意，这份报告表明定期跑步在增长寿命这方面比散步、骑车或游泳更有效，用于比较级之后应使用介词than。
6.that/which【解析】考查连词。这是个定语从句，定语从句缺主语，而先行词为 study,是物，故填that/which。
7.causes 【解析】考查名词复数。空格前为all,后接可数名词复数，cause原因，其复数形式为causes。
8.strengthen【解析】考查词形变化。根据句意，做锻炼去强化腿部肌肉。可知此处考查动词不定式to do, 则to后接动词原形。 strength的动词形式为strengthen。
9.energetic【解析】考查词形变化。 be动词后接形容词做表语，而energy的形容词形式为energetic。
10.it 【解析】考查人称代词。根据句意，如果你时间不够，你只需要花费一半的时间跑步来获取与其他运动同等的利益，所以我们可能都应该尝试一下。give后 缺少宾语，而此空宾语指代前面提到的事情，应使用人称代词it。
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