Question

【急】高分求英语高手paraphrase（改写）

 Solar cells (as the name implies) are designed to convert (at least a portion of) available light into electrical energy. They do this without the use of either chemical reactions or moving parts. Modern solar cells are based on semiconductor physics -- they are basically just P-N junction photodiodes with a very large light-sensitive area. The photovoltaic effect, which causes the cell to convert light directly into electrical energy, occurs in the three energy-conversion layers.

 Solar cars combine technology typically used in the aerospace, bicycle, alternative energy and automotive industries. The design of a solar vehicle is severely limited by the amount of energy input into the car，including solar-powered cars and utility vehicles.

因为老师要求不能按照网上资料抄下来，求高手把上述两段话paraphrase
包含一些专业词语。写好的有加分！！！不要用翻译工具翻译啊！！！
An electrical current generated in the semiconductor is extracted by contacts to the front and rear of the cell. The top contact structure which must allow light to pass through is made in the form of widely-spaced thin metal strips that supply current to a larger bus bar. Solar cells are essentially semiconductor junctions under illumination. Light generates electron-hole pairs on both sides of the junction, in the n-type emitter and in the p-type base. The generated electrons (from the base) and holes (from the emitter) then diffuse to the junction and are swept away by the electric field, thus producing electric current across the device.

希望高手再把这句话paraphrase一下！！！！！

Answer 1

Solar cells (as the name implies) are designed to convert (at least a portion of) available light into electrical energy. They do this without the use of either chemical reactions or moving parts. Modern solar cells are based on semiconductor physics -- they are basically just P-N junction photodiodes with a very large light-sensitive area. The photovoltaic effect, which causes the cell to convert light directly into electrical energy, occurs in the three energy-conversion layers.

 Solar cars combine technology typically used in the aerospace, bicycle, alternative energy and automotive industries. The design of a solar vehicle is severely limited by the amount of energy input into the car，including solar-powered cars and utility vehicles.
An electrical current generated in the semiconductor is extracted by contacts to the front and rear of the cell. The top contact structure which must allow light to pass through is made in the form of widely-spaced thin metal strips that supply current to a larger bus bar. Solar cells are essentially semiconductor junctions under illumination. Light generates electron-hole pairs on both sides of the junction, in the n-type emitter and in the p-type base. The generated electrons (from the base) and holes (from the emitter) then diffuse to the junction and are swept away by the electric field, thus producing electric current across the device.

Answer 2

Solar batterys which also called implies are designed to convert the available light into electrical energy. They work with neither chemical reactions nor moving parts. Modern solar batterys are based on semiconductor physics, which are just P-N junction photodiodes with a large number of light-sensitive area. The photovoltaic effect causes by the cell occurs in the three energy-conversion layers.

Solar cars combine the typical technology which used in the aerospace. The design of a solar vehicle is severely limited by the amount of energy input into the car，also consisting the solar-powered cars and utility vehicles.

Answer 3

The main feature of the design concept of solar cells is to convert at least a portion of available light into electrical energy without the help of any chemical reactions or moving parts. Semiconductor physics is applied for making modern solar cells; basically, they are just very big light-sensitive areas of P-N junction photodiodes. These cells convert the light directly into electrical energy with three conversion layers by the photovoltaic effect.

Technologies that are typically used in the aerospace, bicycle, alternative energy and the automotive industries are integrated into the production of solar cars. However, the development on the designs of solar vehicles like solar-powered cars and utility vehicles are restricted by the insufficient energy input into the cars.

问题补充：（加料要加分哟，嘿嘿！！）
The contacts to the cell’s front and rear draw out the electric current generated in the semiconductor. The structure of the top contact that supplies current to a larger bus bar is made of thin metal strips in wide spacing form, and light must be allowed to pass through it. Solar cells are basically semiconductor junctions that are exposed to light. Light generates electron in the p-typed base and holes in the n-typed emitter of the junction, then the electric field sweeps away the generated electrons that have diffused to the junction and electric current is thus produced across the device.

Answer 4

既然要求的是paraphrase 不是 rewrite,我就不对原文中的用词作任何变动了, 我只做结构调整使其更正式. 主要包括2种变动,1. 一般现在时变被动, 2.动词变名词. 其实上面2段中,单从paraphrase 的角度上讲个人认为不必要每句都改, 部分还是符合要求的.

Solar cells (as the name implies) are designed to convert (at least a portion of) available light into electrical energy. Neither chemical reactions nor moving parts is involved in the process. Modern solar cells are based on semiconductor physics -- P-N junction photo-diodes with a very large light-sensitive area. The conversion of light into electrical energy, which is caused by photovoltaic effect, occurs in the three energy-conversion layers.
Technologies typically used in the aerospace, bicycle, alternative energy and automotive industries are combined by solar cars. The design of a solar vehicle is severely limited by the amount of energy input into the car，including solar-powered cars and utility vehicles.

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An electrical current generated in the semiconductor is extracted by contacts to the front and rear of the cell. The top contact structure which allows light to pass through is made in the form of widely-spaced thin metal strips that supply current to a larger bus bar. Solar cells are essentially semiconductor junctions under illumination. The generation of electron-hole pairs by light takes place on both sides of the junction, in the n-type emitter and in the p-type base. The sweep, due to electric field, of the diffusing electrons and holes produces electric current across the device.