Unit 2 课时检测(3) Grammar and usage（word练习）-【新课程学案】新教材2023-2024学年高中英语必修第二册（译林版2020）

UNIT 2 课时检测(三) Grammar and usage Ⅰ.阅读理解 Running on the beach is completely different from running on the pavement (人行道), a track or trails with soft surfaces. For starters, sand can be a challenge because it has an uneven (不平的) surface and constantly moves under your feet.As you push off, you're going to lose some of your push as the sand moves, so you're not going to be able to push yourself forward as you would on a track or pavement！But this unevenness has an_upside:_it gives your body an extra workout, forcing you to exercise the muscles that don't get as much use as runs on firm surfaces. You also might feel painful afterward because beaches tend to slope (倾斜) downward, toward the water.If you're going for a long run on the beach, you might notice that one side of your body including your ankle, leg or knee might feel more painful because you're putting more pressure on it due to the slope. Some beach runners tend to run barefoot.However, if you're not used to barefoot running, start slowly and run short distances at first.That's because running barefoot uses different muscles than running with shoes does, and it's important to strengthen these muscles and adapt your feet. Despite these challenges, running on sand can be a smart choice for athletes because running on it can decrease the bad influence on your body during high-intensity workouts.This could potentially lead to less muscle damage and less pain.Women had less myoglobin (肌红蛋白), which can cause muscle pain, in their blood after running on the sand than they did after running on grass.This suggests running on softer ground surfaces, such as sand, may reduce muscle damage. 语篇解读：本文是一篇说明文。文章主要介绍了在沙滩上跑步和在人行道、跑道上跑步的不同，以及在沙滩上跑步的好处。 1．Why do the starters feel hard while running on sand? A．The surface is even. B．The beach is near water. C．The runners lack muscles. D．The surface of the sand is soft. 解析：选D　推理判断题。根据第二段中的“For starters, sand can be a challenge ...as you would on a track or pavement！”可知，沙子的表面不平坦，