18. expectation [ekspek'teɪʃn]n.希望;预料
eg:Students' expectations were as varied as their expertise.
学生们的期望根据他们的专业各有不同。
[拓展]
expectancy [ɪkˈspektənsi] n.期待,期望
expectant [ɪkˈspektənt] adj.期待的 n.候选人
19. motivate [ˈməʊtɪveɪt]vt.刺激;激励
eg:They are motivated by a need to achieve.
对成功的渴望激励着他们。
[拓展]
motivation [ˌməʊtɪ'veɪʃn] n.动机;诱因
motivational [ˌməʊtɪ'veɪʃənl] adj.动机的,动力的
20. sympathize [ˈsɪmpəθaɪz]v.同情;怜悯
eg:I sympathize with you for your loss, Professor.
教授,我对您遭受的损失深表同情。
[拓展]
sympathize with同情;支持
sympathizer [ˈsɪmpəθaɪzə(r)]n.支持者;同情者;赞助者
21. fluctuate [ˈflʌktʃueɪt]v.波动;涨落
eg:Body temperature can fluctuate if you are ill.
人患病后体温可能会上下波动。
[拓展]
unpredictable fluctuations 瞬息万变
inflation [ɪn'fleɪʃ(ə)n] n. 膨胀;通货膨胀
22. postpone [ˌpəʊst'pəʊn]v.延期,推迟
eg:I'm afraid the meeting will be postponed.
会议怕要延期了。
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