当前位置: > 描写植物英语小作文...
题目
描写植物英语小作文

提问时间:2020-07-26

答案
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.
举一反三
已知函数f(x)=x,g(x)=alnx,a∈R.若曲线y=f(x)与曲线y=g(x)相交,且在交点处有相同的切线,求a的值和该切线方程.
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
奥巴马演讲不用看稿子.为什么中国领导演讲要看?
想找英语初三上学期的首字母填空练习……
英语翻译
版权所有 CopyRight © 2012-2019 超级试练试题库 All Rights Reserved.