核心问题
请区分 obsolete 与 obsolescent。
词典解答
obsolete['ɒbsəliːt]作“陈旧的”“过时的”解：
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Bows and arrows are now obsolete. (Neal) 弓和箭已经过时了。
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That word is obsolete; do not use it. (SAT) 这个词很陈旧；不要使用它。
obsolescent[ˌɒbsəˈlesnt]作“即将过时的”“将被废弃的”“冷僻的”解，如 an obsolescent word（生僻字）。
练习题
请做下面的英语试题：
- The car model was becoming obsolete.
A. out of stock B. improved C. popular D. outmoded (TOEFL)
- That manufacturing method is obsolete.
A. dilapidated B. extent C. archaic D. out-of-date (TOEFL)
- Are typewriters fast becoming obsolete with the advent of computers?
A. complicated B. neglected C. outmoded D. disdained (TOEFL)
- Select the opposite meaning: obsolete.
A. mechanical B. fancy C. renovated D. old(GRE)