1.(2018课标全国卷Ⅰ)Two of the authors of the review also made a study published in 2014 that showed a mere five to 10 minutes a day of running reduced the risk of heart disease and early deaths from all (cause).
1. 答案 causes 此处的cause是可数名词,表示“原因”。根据其前的all可知,应该使用其复数形式,故填causes。
2.(2017课标全国卷Ⅰ)This trend, which was started by the medical community (医学界) as a method of fighting heart disease, has had some unintended side (effect) such as overweight and heart disease—the very thing the medical community was trying to fight.
2. 答案 effects 根据空格前面的some以及空格后面列举的两个例子“overweight and heart disease”可知,应用effect的复数形式。