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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。 >2$5eI
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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. rg0ma
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(3)With more experimenting being doing every year,much of photosythesis will certainly be known before very long. q o<&J f
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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。) :>p8zG
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(二)with+名词十介词的结构 ORu2V#Z[
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(1)Maxwell pointed out that an object may be hot without the motion in it being visible. 6\61~u ~
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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。) s|y:UgD
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(4)Carbon,with 6 protons and 6 neutronsin its nucleus,has 6 electrons. R-^96fFBy
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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. @Mvd'.r<;
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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。) d*pF> j
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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。) BK,sc'b
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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。 HmK*b Z
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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: zq5'i!s !0
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(一)with十名词十分词的结构 ,gnQa
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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. dTEJ=d40
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正在运动的某一物体,如果没有受到任何外力触动,它将永远继续作匀速直线运动。(条件状语) xFp<7p
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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。) Ri:p8
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(3)With more experimenting being doing every year,much of photosythesis will certainly be known before very long. CKARg8o
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随着每年所进行的实验增多,可以肯定,不久将会对光合作用了解得更多。(条件状语) 3
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(4)The article deals with microwaves,with particular attention being paid to radiolo cation. 0*(K DDv
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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。) `\FI7s3b
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(二)with+名词十介词的结构 {,f[r*{Y
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(1)Maxwell pointed out that an object may be hot without the motion in it being visible. A[9NP-~
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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) .}p|`3
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(2)Under a microscope,a cell looks like a bit of clear jelly with a thin wall round it. FQ## 397
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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。) T&4fBMBp,%
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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. /#IH-2N
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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。) 0x4l5x$8
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火箭发动机以其类似于瀑布或大雷雨的持续轰鸣给人以深刻印象,成为太空新时代的象征。(with...roarlike.—是非限定性定语,修饰engine。) e~*S4dKR
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我们已经讨论过荧光,荧光对等于或大于可见光光子能量的辐射是很敏感的。(with+名词十形容词的复合结构,起定语作用,修饰radiations。) [10$a(g\x
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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。) uTxX`vH@!
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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。) |)~Ex 9%ev
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(四)with+名词+动词不定式的结构 W*1d
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(1)In outer space,with no swaddling atmosphere to diffuse it,sunlight is infinitely more powerful than on earth. q}wl_ku9+
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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? Uqb]e?@
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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? y{&{=1#
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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。)