《科技英语写作 Scientific English Writing》课程教学资源（PPT课件讲稿）（双语版）Section VII The relative clause

Scientific English Writing Section vl

Scientific English Writing Section VII

TThe relative clause I. Connectives that which 1. Relative pronoun whose that but※ which t not W/0

The relative clause 1. Relative pronoun that which who( whom) whose as but Ⅰ . Connectives ※ ＝ that which + not who

There is no complicated problems but can be solved in a few hours 英语中没有无例外的规则。 There is no rule in English but has exceptions There was no single movement of hers but was beautiful

There is no rule in English but has exceptions. ➢英语中没有无例外的规则。 ➢ There was no single movement of hers but was beautiful. ➢ There is no complicated problems but can be solved in a few hours

2. Relative adverbs mathematical expressions, equations, formulas, “这里”,“式中 where place, extent, degree, point, case, situation when wherein in which whereby= by which whereon on which whence =from which(comes)

2. Relative adverbs where when wherein = in which whereby = by which whereon = on which whence = from which (comes) mathematical expressions,equations, formulas, “这里”，“式中” place, extent, degree, point, case, situation ···

可以使用小型计算机的场合似平是无止境的。 The places where small computers can be used appear endless 我们必须懂得这里使用该电路的原因 We must understand the reason why this circuit is used ere Electromagnetic induction is the means whereby nearly all the world's electric power is produced

The places where small computers can be used appear endless. ➢ 可以使用小型计算机的场合似乎是无止境的。 We must understand the reason why this circuit is used here. ➢ 我们必须懂得这里使用该电路的原因。 Electromagnetic induction is the means whereby nearly all the world’s electric power is produced

The relative clause II. The correct choice of the preposition before which?? 1.“ of which” s adverbial in the sub- clause consist of capable of be composed of descriptive of be made of be representative of be made up of characteristic of be constructed of symptomatic of

The relative clause 1. “ of which” as adverbial in the sub-clause consist of be composed of be made of be made up of be constructed of Ⅱ . The correct choice of the preposition before “which” capable of descriptive of representative of characteristic of symptomatic of be +

Specific diseases of which these abnormal muscle contractions are symptomatic will be discussed later. 构成水的两种元素是气体氧和氢。 The two elements of which water is made are the gases oxygen and hydrogen 这是该体管所能给出的最大放大量。 This is the maximum amount of amplification of which the transistor is capable

Specific diseases of which these abnormal muscle contractions are symptomatic will be discussed later. The two elements of which water is made are the gases oxygen and hydrogen. ➢ 构成水的两种元素是气体氧和氢。 This is the maximum amount of amplification of which the transistor is capable. ➢ 这是该晶体管所能给出的最大放大量

2.“ of which” as attributive in the sub= clause 我们能够找到几个条件,其中只有两个是必要条件 We can find a few conditions only two of which are necessary ※※其每一点的Y坐标均为零的的线就是X轴。 The curve the y-coordinate ofevery point on which is zero is just the x-axis

2. “ of which” as attributive in the sub-clause We can find a few conditions only two of which are necessary. ➢ 我们能够找到几个条件，其中只有两个是必要条件。 The curve the Y-coordinate of every point on which is zero is just the x-axis. ※ ※ 其每一点的Y 坐标均为零的曲线就是X 轴

3. other prepositions + which 这取决于电流流动的容易程度。 This depends on the ease with which a current flows. 这是能量守恒定律适用的一个过程。 This is a process to which conservation of energy law apples 铁是我们最熟悉的金属之 Iron is one of the metals with which we are most familiar 必须确定人跟最敏感的波长 It is necessary to determine the wave length to which the eve us most sensitive

3. other prepositions + which This depends on the ease with which a current flows. ➢ 这取决于电流流动的容易程度。 This is a process to which conservation of energy law applies. ➢ 这是能量守恒定律适用的一个过程。 Iron is one of the metals with which we are most familiar. ➢ 铁是我们最熟悉的金属之一。 It is necessary to determine the wave length to which the eye is most sensitive. ➢ 必须确定人眼最敏感的波长

II. None-restrictive relative clauses some commonly used patterns. In which case at which time (main clause), for which reason =because of which from which as a result of which 1远大于12,在这种情况下,2可以忽赂不计。( neglec I, is much greater than 12, in which case l2 can be neglected

some commonly used patterns: Ⅲ . None-restrictive relative clauses in which case … at which time for which reason =because of which from which as a result of which ··· (main clause), I 1 is much greater than I 2 , in which case I 2 can be neglected. ➢ I1远大于I2，在这种情况下，I2可以忽略不计。（neglect)