The creation of today’s animated films, frequently hailed for their lifelike artistry, relies heavily on mathematics. 1 Aspiring animators would benefit from a strong background in math if they wish to create, for instance, the rounded shapes making up an old man’s knobby knuckles or a young girl’s bouncy hair. One of the algorithms now considered an industry standard repeatedly subdivides a polygon by splitting and averaging the midpoint of a line. Developed by Pixar Animation Studio’s Tony DeRose, this algorithm eliminated the problem of discernible edges of polygons by replacing them with the seamlessly rounded curves of the parabolas that emerge as a result of the polygon subdivision process. Innovations such as DeRose’s depend on an understanding of applied mathematics in areas such as geometry, linear algebra, trigonometry, and calculus.
Which choice most effectively sets up the information that follows in the paragraph?
A: NO CHANGE
B: Animators use algorithms, or sequences of mathematical steps,
C: The animation industry has grown increasingly dependent on computer-generated imagery
D: In fact, animators draw on a variety of skills, many of them in fields outside of a traditional understanding of art,
新SAT官方Daily Practice每日一题写作&文法(9.15）图1
关键词汇：
animated ['?n?me?t?d] 此处是动画 vt. 使…有生气(animate的过去式)adj. 活生生的;活泼的;愉快的
hail [he?l] n. 冰雹;致敬;招呼;一阵 vt. 致敬;招呼;向...欢呼;猛发;使像下雹样落下(过去式hailed，过去分词hailed，现在分词hailing）int. 万岁;欢迎 vi. 招呼;下雹
lifelike ['la?fla?k] adj. 栩栩如生的;逼真的
artistry ['ɑ?t?str?] n. 艺术性;工艺;艺术技巧;艺术效果;艺术工作
animator ['?ni,meit?] n. [C] 1.赋予生气者;赋予生气的因素 2.动画片绘制者
algorithm ['?lg?r??(?)m] n. [计][数] 算法，运算法则
subdivide [s?bd?'va?d] vt. 把……再分，把……细分
splitting ['spl?t??] v. 裂开(split的现在分词)
adj. 极快的;爆裂似的，剧烈的;滑稽的
eliminate [?'l?m?ne?t] vt. 消除;排除
discernible [d?'s??n?bl] adj. 可辨别的;可识别的
geometry [d??'?m?tr?] n. 几何学
linear algebra [数] 线性代数
trigonometry [,tr?g?'n?m?tr?] n. 三角法
calculus ['k?lkj?l?s] n. [病理] 结石;微积分学
答案：D
解析：
Choice B is the best answer because it most effectively sets up the information that follows in the paragraph. Providing a general introduction to algorithms helps to lead readers to the more specific information provided about DeRose’s polygon subdivision algorithm.
难易程度：较难
你答对了吗?
