用介词短语来代替状语从句

用介词短语来代替状语从句

While it is being compacted, considerable lateral横(向)的pressure is exerted by concrete.

If pressure is constant, gases will expand when heated.

If values of W are small, the impedance of the capacitor is large relative to R.

When temperatures are greater than 60℃，this equation does not apply.

While it is being compacted, considerable lateral pressure is exerted by concrete. During compacting/compactification, (a) considerable lateral pressure is exerted by the concrete.

At/For/With constant pressure, gases will expand when heated.

For/With small values of ω, the impedance of the capacitor is large relative to R. At/With temperatures greater than 60oC, this equation does not apply.

名词短语代替状语从句

If the diode is analyzed physically, it can be shown that

In this case electrons will possess more energy, so that the brightness of the spot can be increased.

A physical analysis of the diode shows that

In this case electrons will possess more energy, thus increasing the brightness of the spot.

water which has been distilled some distilled water

bridge which has been incorrectly designed an incorrectly designed bridge substances which are not known the unknown substances

problem which has still not been solved an unsolved problem

which are made by man man-made satellites

which are modulated in amplitude振幅amplitude-modulated signals

which is plated with chromium铬chromium-plated steel

which are driven by wind wind-driven pumps

instruments which are used the instruments used

number of mistakes which have been found the number of mistakes found

new cars which a used for racing the new racing cars

which is used for drawing drawing paper

which fall freely freely falling bodies

country which produces oil an oil-producing country

point at which it boils the boiling point

is tested in this way material so/thus tested

which has blue lines blue-lined paper

saw which has wide teeth a wide-toothed saw

triangle which has acute angles an acute-angled triangle

将下面句子翻译虚拟语气

若没有半导体(semiconductor),卫星通讯(satellite communications)就不可能了。

②我们本来也可以用定理(theorem)(6)来导出(derive)式(5)

③一旦出现什么情况,尽快让我们知道。

④数字(digital)设计人员(designer)很好地了解布尔代数(Boolean algebra)是十分必要的。

⑤有人建议在太空制造药物(drug).

⑥这来自于输出要稳定(stable)这一需要(necessity)。

⑦其条件是(x-a)为一个根(root)。

⑧这根传输线(transmission line)的作用好像它是开路(open-circuit)似的。

⑨我们周围的一切东西,无论是空气、水还是木头(wood),都是物质

1 Without semiconductors, satellite communications would be impossible.

2 We could also have used Theorem (6) to derive Eq. (5).

3 Should anything happen, let us know as soon as possible.

4 It is quite essential that digital designers (should) have a good knowledge of Boolean algebra.

5 It is suggested that drugs be made in space.

6 This comes from the necessity that the output be stable.

7 Its condition is that (x–a) be a root.

8 This transmission line acts as if it were open-circuit.

9 Everything around us, be it air, water or wood, is matter.

名词化结构主语

If the thickness of the lagging（绝热材料）is increased, it will reduce the heat losses. If machines are tested by this method, there will be some loss of power.

If the temperature rises by 50℃, it would result in a in Zener voltage of %.

If these listings are studied , it will greatly help the programmer in finding any errors made in writing the program.

If the diode（二极管）is physically analyzed, it will be shown that the current and voltage are related by the following equation

An increase in the thickness of the lagging will reduce the heat losses.

The testing of machines by this method will entail/result in some loss of power.

A temperature rise of 50oC [OR: A rise in/of temperature by 50oC] would result in a change in Zener voltage of %.

A study of these listings will greatly help the programmer in finding any errors made in writing the program.

A physical analysis of the diode shows that the current and voltage are related by the following equation.

现在分词短语做状语

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分词短语作状语的时态和语态

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* 过去分词本身就表示被动 * 现在分词的被动语态同样有两种形式 一般式：being done 完成式：having been done * 主动与被动的判断主要是要找到分词的逻辑主语，一般说来，用作状语的分词，其逻辑主语就是句子的主语，它们之间有两种关系：逻辑主语是分词行为的支配者，即主谓关系——用现在分词主动形式表示； 逻辑主语是分词的行为对象，即动宾关系——用过去分词或现在分词的被动形式,分别表示： 过去分词——与主要动词先后发生，如： -- Inspired him, we decided to work harder. (被鼓励接下来决定更加努力) 现在分词一般式——与主要动词同时发生，如： -- Being surrounded, the enemy was forced to surrender.（被包围的同时被迫投降） 现在分词完成式——先于主要动词的动作，如： -- Having been asked to stay, I couldn't very well leave. (先被要求留下，（考虑后)觉得不好离开。 * 独立主格结构：

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2、常见同一形容词与不同介词搭配时意义上的差别 3、容易混淆的含有介词固定搭配的词组

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分词作状语+状语从句+倒装句

非谓语动词分词作状语

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介词和介词短语(知识梳理)

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中考英语总复习专题四介词和介词短语满分突破试题(含解析)

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5. 专题五 介词及介词短语

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