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介词是学习英语的难点之一,特别在阅读过程中是一个“拦路虎”。介词短语是构成长难句的一个重要因素。介词短语可用作定语、状语、表语和补足语。介词可与动词、名词、形容词等连用。 5Y
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这里特别指出一种介词复合结构,with(without)构成的复合结构,这种复合结构的形式有: 88
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(1) If something is moving, with nothing touching it, it will go on forever,coasting at a uniform speed in a straight line. lcij}-z:%e
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(2)The light we see,with its colors ranging from deep red to deep violet,serves us in our daily lives. 0O?B!Jr]RM
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(3)With more experimenting being doing every year,much of photosythesis will certainly be known before very long. T5&jpP`M
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(1)Maxwell pointed out that an object may be hot without the motion in it being visible. 4~hd{8
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(2)Under a microscope,a cell looks like a bit of clear jelly with a thin wall round it.
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力学是自然科学的一个分支,它研究物体的运动,而把静止看成是运动的一种特殊情况。(with引出的复合结构起补充说明作用。) E'j>[C:U
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(5)The rocket engine,with its steady roar like that of a waterfall or a thunderstorm,is an impressive symbol of the new space age. dKTyh:_{
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(6)In each case the crystals,small orlarge,are naturally bounded by square or rectangular crystal faces of different sizes,but with each face always at right angles to each adjacent face.
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(2)In simple harmonic motion,where there is no damping,the energy of the vibrating particle changes from kinetic to potential and back,with the total energy constant. v+Eub;m
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在没有阻力的简谐运动中,振动质点的能量由动能变为势能,或由势能变为动能,但总能量不变。(with十名词十形容词的复合结构在句中有结果状语的意味。) <G|i!Pm
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介词是学习英语的难点之一,特别在阅读过程中是一个“拦路虎”。介词短语是构成长难句的一个重要因素。介词短语可用作定语、状语、表语和补足语。介词可与动词、名词、形容词等连用。 {W+IUvn
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这里特别指出一种介词复合结构,with(without)构成的复合结构,这种复合结构的形式有: GCf,Gfmr
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(一)with十名词十分词的结构 i;rcgd
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这种结构在英语中可称为“分词复合结构”。它在句中可作定语或状语。在科技文章中常用来对句子或某个成分作补充说明。 He,,bq
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(1) If something is moving, with nothing touching it, it will go on forever,coasting at a uniform speed in a straight line. yR?./M!
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(2)The light we see,with its colors ranging from deep red to deep violet,serves us in our daily lives. jST4O"DjM
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我们看到的从深红色到深紫色的光,在日常生活中为我们服务。(作非限定性定语,修饰light。) CY*o"@-o5)
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(3)With more experimenting being doing every year,much of photosythesis will certainly be known before very long. XUzOt_L5<
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(4)The article deals with microwaves,with particular attention being paid to radiolo cation. qEuO@oE
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这篇文章是研究微波的,其中特别注意无线电定位问题。(with...10cation是分词复合结构,在句中作补充说明。) q\}+]|nGs
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(6)Ice,of relative density 0.9,floats in water with ninetenth submerged. D/f4kkd
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(二)with+名词十介词的结构 ^L5-2;s<U'
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麦克斯韦指出,即使看不见物体内部的分子运动,物体也可能是热的。(让步状语) UPU$SZAIx
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在显微镜下,细胞看上去如一滴透明的胶状物体,周围有一层很薄的壁。(with..it作定语,用来修饰jelly。) WN+i 3hC
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(3)Mechanics is that branch of physical science which considers the motion of bodies,with rest as a special case of motion. nf/?7~3?[
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力学是自然科学的一个分支,它研究物体的运动,而把静止看成是运动的一种特殊情况。(with引出的复合结构起补充说明作用。) )"pvF8JR%3
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(4)Carbon,with 6 protons and 6 neutronsin its nucleus,has 6 electrons. kun/KY
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火箭发动机以其类似于瀑布或大雷雨的持续轰鸣给人以深刻印象,成为太空新时代的象征。(with...roarlike.—是非限定性定语,修饰engine。) jW\:+Taq
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我们已经讨论过荧光,荧光对等于或大于可见光光子能量的辐射是很敏感的。(with+名词十形容词的复合结构,起定语作用,修饰radiations。) ;5 j|B|v
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在没有阻力的简谐运动中,振动质点的能量由动能变为势能,或由势能变为动能,但总能量不变。(with十名词十形容词的复合结构在句中有结果状语的意味。) ^PZ[;F40
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不带电的物体含有大量原子,每个原子通常含有等量的电子和质子,但是有一些电子暂时脱离了原子的束缚。(with+名词+形容词的复合结构,对句子起补充说明作用。) <Ua~+U(FR0
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由于水的存在,在火星上找到某种生命的可能性的前景就光明得多了。 (with water present作原因状语。) [6!k:-t+
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(2)At present,about 80 different metals are known to man.But with so many metals to choose from,the question arises:which metal shall we use? ' @!
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目前,人们已知的金属大约有80种。由于有这么多的金属可供选择,于是便产生了一个问题:我们将采用哪种金属呢?(with引出的复合结构用作原因状语。) iJTG+gx
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(2)At present,about 80 different metals are known to man.But with so many metals to choose from,the question arises:which metal shall we use? (u?s@/e:`/
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目前,人们已知的金属大约有80种。由于有这么多的金属可供选择,于是便产生了一个问题:我们将采用哪种金属呢?(with引出的复合结构用作原因状语。)