2018全国1卷
第二节 (共10小题;每小题1.5分，满分15分)
阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。
According to a review of evidence in a medical journal, runners live three years 61 (long) than non-runners; you don't have to run fast or for long 62 (see) the benefit. You may drink, smoke, be overweight and still reduce your risk of 63 (die) early by running.
While running regularly can't make you live forever, the review says it 64 (be) more effective at lengthening life 65 walking, cycling or swimming. Two of the authors of the review also made a study published in 2014 66 showed a mere five to 10 minutes a day of running reduced the risk of heart disease and early deaths from all 67 (cause).
The best exercise is 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 68 (strengthen) your leg muscles (肌肉), avoid hills and get good running shoes. Running is cheap, easy and it's always 69 (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 70 a try.
答案解析：
61. longer 这里需要比较级来与non-runners进行对比，所以正确答案是longer。
62. to see 这里需要不定式to see作目的状语，表示跑步的目的，即使得句子完整。
63. dying reduce后面需要接名词或动名词作宾语，这里应该使用动名词dying。
64. is 这里需要使用be动词的一般现在时态，因为句子描述的是一般性的事实，所以正确答案是is。
65. than 这里需要使用than来进行比较，比较跑步和其他运动在延长寿命方面的效果。
66. which 这里需要一个关系代词来引导定语从句，指代前面的study，并在从句中作主语，所以正确答案是which。
67. causes 这里需要名词的复数形式，因为前面有all修饰，表示所有原因，所以正确答案是causes。
68. strengthen 这里需要动词的原形，因为to do结构表示目的，所以正确答案是strengthen。
69. energetic 这里需要形容词来修饰running，表示跑步总是充满活力的，所以正确答案是energetic。
70. it/running 这里需要代词或名词来作为give的宾语，it指代running，所以it或running都是正确答案。
