分類(lèi)說(shuō)明:植物-Plants
植物
【內(nèi)容提示】
根據(jù)下面內(nèi)容要點(diǎn)寫(xiě)一篇有關(guān)植物分類(lèi)的文章：
①植物是非常重要的生物；沒(méi)有植物，生命就無(wú)法維持。動(dòng)物和人的食物來(lái)源于植物和其他動(dòng)物。
�、谥参锟梢岳每諝�、水和陽(yáng)光制造養(yǎng)料，而人和動(dòng)物則不能。
③植物的種類(lèi)繁多，但主要可分為兩大類(lèi)，即開(kāi)花植物（flowering plants）和不開(kāi)花植物（nonflowering plants）。
④開(kāi)花植物有根、莖、葉、花和果。我們周?chē)械臉?shù)木大都是開(kāi)花植物。
�、莶婚_(kāi)花植物在我們周?chē)?jiàn)不到多少，它們是些針葉樹(shù)、苔蘚、歐龍牙草之類(lèi)。
�、薅鄶�(shù)植物不是由種子而是由孢子長(zhǎng)出來(lái)的。孢子和種子非常相似，落到潮濕背陰處就長(zhǎng)成新的植物。
以下詞語(yǔ)供參考：
1.coniferous a.針葉樹(shù)的 2.moss n.苔蘚；地衣3.liver-wort n.歐龍牙草 4.algae n.水藻；海藻 5.fungi n.真菌 6.spore n.孢子
【作文示范】
Plants
Plants are very important living things. Life could not go on if there were no plants. This is because plants can make food from air, water and sunlight. Animals and man cannot do so. Animals get their food by eating plants and other animals. Man gets his food by eating plants and animals, too. Therefore, animals and man need plants in order to live.
If you look carefully at the plants around you, you will find that there are many types of plants. Some plants are large while others are small. Most plants are green.
There are two main types of plants: flowering plants and nonflowering plants.
Flowering plants have roots, stems①, leaves, flowers and fruits. Almost all the trees around us are flowering plants. You can probably recognize some plants from their flowers or their fruits.
Nonflowering plants include coniferous trees, mosses, liver-worts, algae and fungi. You cannot see many nonflowering plants around you.
Most plants do not grow from seeds. They grow from spores. Spores are very, very small. Some spores are so small and light that they can float in the air. We may say that spores are quite similar to seeds. When these spores fall on wet and shady② places, they usually grow into new plants.
【詞語(yǔ)解釋】
①stem [stem] n. 莖；（樹(shù)）干；（葉）梗
②shady[＇sheidi] a.背陰的；陰涼的
【寫(xiě)法指要】
本文是一篇分類(lèi)分析說(shuō)明文。第一段寫(xiě)植物對(duì)人和動(dòng)物的重要性，我們可以把它看做引言段。第二、三、四段是分類(lèi)說(shuō)明：第二段說(shuō)植物種類(lèi)繁多、大小不一，但總的可以分為兩種，即開(kāi)花植物和不開(kāi)花植物；第三段具體說(shuō)明開(kāi)花植物的情況；第四段說(shuō)明不開(kāi)花植物的情況。第五段以植物是如何繁殖的作為全文的結(jié)束段。