36.第二节（共5小题；每小题2分，满分10分）

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

Is Fresh Air Really Good for You?

We all grew up hearing people tell us to ＂go out and get some fresh air＂ . 36 According to recent studies, the answer is abig YES, if the air quality in your camping area is good.

37 If the air you’re breathingis clean — which it would be if you’re away from the smogof cities — then the air is filled with life-giving, energizingoxygen. If you exercise out of doors, your body will learn to breathe moredeeply, allowing even more oxygen to get to your muscles（肌肉）and your brain.

Recently, people have begun studying the connection between thenatural world and healing（治愈）. 38 In these places patients cango to be near nature during their recovery. It turns out that just looking atgreen, growing things can reduce stress, lower blood pressure, and put peopleinto a better mood（情绪）. Greenery is good for us. Hospital patients who see tree branchesout their window are likely to recover at a faster rate than patients who seebuildings or sky instead. 39 It gives us a great feeling of peace.

40 While the sun’s rays can age and harm our skin, they also give usbeneficial Vitamin D. To make sure you get enough Vitamin D — but still protect your skin — put on sunscreen right as you head outside. It takes sunscreenabout fifteen minutes to start working, and that’s plenty of time for your skinto absorb a day’s worth of Vitamin D.