clouds play an important role in the Consequently，some ideas occur to my mind:How the clouds come into being? What do their different colours and shapes predict? I am so glad that the Internet helped me to solve the problems The clouds are formed by some little water drops or ice crystals which we can’t easily see by our own eyes But they are not strong Because if they meet cold air，they will turn back to water drops or ice crystals and fall down to the And this is what we call rain or It’s said that different colours of clouds predict different weather Let me take the dark black ones for instance ，it means it will be rainy If you saw red clouds around the sun began to rise ，you woule had better not go It must be uwful weather The clouds of different shapes make us interested They also predict different weather Like the ones look like cottons，they means that you have to be with an umbrella when you leave your home Sorry，I always take the bad ones for example I think the steamed bread will have you feel That the shapes of clouds look like them shows a fine day Is it funny or ridiculous ?But evidence shows that they are true As a Chinese saying goes:”Seeing the clouds，you’ll know about the weather ” They’re signs of weather With the development of science and the change of scientific instrument ， people can also use microscope to search tor the weather data But it’s disturbing to find the report made some mistakes It shows again that human can’t control nature So in order to live a safer life ， it’s necessary to learn to know about the weather from the
“毕业论文”用英文是dissertation dissertation[ˌdɪsəˈteɪʃn] 专题论文，学位论文；学术演讲 毕业论文； 博士论文； 论文； 学位论文 例句：He was involved in writing his doctoral 他在聚精会神地写他的博士论文 I have not yet footnoted my 我还没有给我的论文加上脚注 I'm working my notes up into a 我正在把我的笔记修改成论文
