255　estimate，rate，appraise，assess和evaluate

① estimate带主观因素，评估，测算（比较粗略）。

I estimate her age at thirty-two. 我估计她32岁。

② rate也是评估，将评估数值限于一定范围内考虑。

He did not rate the machine above its real value. 他没有对机器估价过高。

Her needs were rated at 200 dollars a month. 她一个月所需花费估计为200美元。

③ appraise评估，估测（价值、质量、状况等）。

appraise the infant's weight 估测婴儿的重量

appraise the ability of a job applicant 对求职者的能力作评估

④ assess估计，评估；征收（税款等）。

assess a tax of S|100 on/upon sb. 向某人征税100美元

⑤ evaluate从数学角度作正确推算，不涉及金融价格，以分数高低、艺术品价值、水平高低评估。

Some experts were invited to evaluate the new discovery made by a young researcher. 一些专家应邀前来评估一位青年研究人员所作的新发现。

The representatives at the conference evaluated the book positively. 与会代表们肯定地评价了这本书。