2021年7月23日，第32届夏季奥运会在日本东京正式开幕。中国体育代表团有431名运动员参与奥运奖牌角逐，祝愿我国的奥运健儿在这个夏天能再创佳绩，更希望中国体育代表团的每一位成员平安回家。
在为我国奥运健儿加油助威的同时，小伙伴们也别忘了为自己的GRE备考加油鼓劲哦
。咱们拿下首金的杨倩，就读于清华金融系，顶级学霸 奥运冠军，真真文体两开花~
那我们今天就来看两篇与“运动”有关的GRE阅读吧。
Analyzing the physics of dance can add fundamentally to a dancer’s skill. Although dancers seldom see themselves totally in physical terms—as body mass moving through space under the influence of well-known forces and obeying physical laws—neither can they afford to ignore the physics of movement. For example, no matter how much a dancer wishes to leap off the floor and then start turning, the law of conservation of angular momentum absolutely prevents such a movement. Some movements involving primarily vertical or horizontal motions of the body as a whole, in which rotations can be ignored, can be studied using simple equations of linear motion in three dimensions. However, rotational motions require more complex approaches that involve analyses of the way the body’s mass is distributed, the axes of rotation involved in different types of movement, and the sources of the forces that produce the rotational movement.
分析
本文属于一个主题句 细节补充的总分结构，
第一句即为文章主题句：分析舞蹈的物理原理可以从根本上提升舞蹈者的技艺。
细节补充可以分为三个部分：
①根据物理学原理（the law of conservation of angular momentum），舞蹈者想要完成的某些舞蹈动作在理论层面就是无法实现的。
②某些舞蹈动作可以用简单的物理学公式（simple equations of linear motion in three dimensions）进行研究。
③旋转舞蹈动作（rotational motions）则需要更加复杂的物理学方法才能进行分析。
❓1. The author mentions all of the following as contributing to an understanding of the physics of dance EXCEPT
A. the law of conservation of angular momentum
B. analyses of the way in which the body’s mass is distributed
C. equations of linear motion in three dimensions
D. analyses of the sources that produce rotational motions
E. the technical terms for movements such as leaps and turns
解题思路
题干：作者列举了下列有助于理解舞蹈物理原理的说法，除了
A选项对应第三句，B选项和D选项均对应最后一句，C选项对应倒数第二句，而E选项“如跳跃和旋转这样的运动技术术语”在原文中未提到，因此本题选E。
❓2. Analysis of which of the following would require the kind of complex approach described in the last sentence?
A. A long leap across space
B. A short jump upward with a return to the same place
C. A sustained and controlled turn in place
D. Short, rapid steps forward and then backward without turning
E. Quick side steps in a diagonal line
解题思路
题干：分析哪个动作需要涉及最后一句描述的复杂物理学分析方法？
原文提到，旋转舞蹈动作（rotational motions）需要用复杂的方法进行分析，因此只有C选项“持续且受控制的原地旋转”与原文的旋转动作相符，其余选项均为涉及旋转动作。
课后作业
接下来，给大家留一道思考题，大家可以把自己的思考过程和答案详细的写在评论区
A bird’s plumage, while contributing to structural integrity and participating in aerial locomotion, completely obscures a bird’s internal activity from human view, greatly impeding our attempts to understand birds as functioning animals. Plumage has even made it difficult to describe bird movement. When describing the movement of mammals, writers turn to well-worn clichés like “grace in motion.” A mammal’s rippling muscles slide smoothly over one another in eye-catching ways. With a mammal, whether a mouse or hippopotamus, we recognize that the underlying body parts are similar to our own and we know these parts will act predictably. Not so with a bird. For centuries, we knew little more about a bird’s movement than that it was a mystery that seemed to be based on the flapping of wings.
❓The author implies which of the following about the “underlying body parts” of nonhuman mammals?
A. They are more similar to humans’ underlying body parts than most people assume.
B. They are more predictable in their workings than are the underlying body parts of humans.
C. Their smooth and grateful actions belie how complicated they actually are.
D. They work in much different ways than do the underlying body parts of most birds.
E. They are easier to observe and understand than are underlying parts of birds.
