2009年6月英语四级听力备战-听写训练(16)（在线收听）

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Scientists and engineers tend to express their ideas in the form of equations ___.But for the rest of us, a qualitative grasp of scientific concepts is sufficient,and this can be conveyed by words and diagrams , without the use of equations.

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答案：

they need to know the precise values of quantities

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译文:科学家和工程师倾向于用公式阐述观点，因为他们需要知道量的精确值。但对我们其余的人来说，对科学概念有个质的认识就已经足够了，这可以利用文字和图表来表述，大可不必用公式。

tend v. 趋向，倾向 用法：tend to do sth.

He tends to get angry when people disagree with him .

当人们不同意他的意见时，他很容易生气。

派生词:tendency n. 趋势，倾向

There is a growing tendency for people to work at home instead of in offices.

人们在家里而不是在办公室里工作的趋势日益增长。