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定语从句(16).

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Presentation on theme: "定语从句(16)."— Presentation transcript:

1 定语从句(16)

2 由“AS”引导的定语从句(续2) 在有些场合,“as”引导的定语从句可能是不完整的。我们只要把词的搭配及其译法记住就可以了,不必分析其从句内的成分。 Using the same reasoning(推理) as used before we shall obtain(得到) the following(以下的) expression(表达式). (“as”在此为关系代词,其后可看成省去了“was”) Radio waves travel(传播) at the same speed as light. (从句中省去了谓语动词“travels”,“as”在此为关系副词,等效于“at which”)

3 2、“as”与“such”搭配的情况 Such meters(仪表) as we use to measure current are called ammeters(安培表). Such slight(微小的) nonlinearities (非线性) as are found in vacuum tubes(真空管) may be neglected(忽略) in the small-signal case(小信号情况). We have studied in this chapter(章) the devices(方法) for solving(解) differential equations(微分方程) such as occur(出现) in physics and geometry (几何学).

4 (句中“such”与“as”紧靠在一起了,“such”是形容词作后置定语)
Tremendously(极其) complex(复杂的) data telemetry(数据遥测) systems (系统)such as are used in the space program(航天计划) are not treated(论述) here.

5 3、“as”单独使用时的情况(不常见) Here we can use a push-pull(推挽) amplifier(放大器) as was described(论述) earlier in this section(节). Instead of(代替) lengths(长度) dx, dy, and dz as we use in the Cartesian system(笛卡尔坐标系) we shall have dr, rd, and dz.


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