Blackboard英語作文

在平平淡淡的學習、工作、生活中，大家最不陌生的`就是作文了吧，作文是由文字組成，經過人的思想考慮，通過語言組織來表達一個主題意義的文體。還是對作文一籌莫展嗎？以下是小編幫大家整理的Blackboard英語作文，僅供參考，歡迎大家閲讀。

Anyone who has ever been to school would have seen many blackboards big and small on which characters in different colors of chalk are written. The blackboard is a kind of cutural tool. It is usually made of wooden boards four to five eenlimeters thick in the shape of a rectangle. It is painted black on the surface with black pednt. Underneath there is a groove for dust. With the development of the educationaI cause, there has been an increasing development in cultural facilities and equipment. The varicty of blaekboards is on the rise. There are glass-made blackboards, velvet blackboards made on the basis of the function of statics, magnetic black-boards made according to the function of magnetics, etc.

The blaekboard is so common and unattractive in our life, yet it has played an important role in our study, Our teachers have written equation after equation and solved countless problems on it. It is such a common rectangular blackboard, but it is the golden key to the door of the treasure house of knowledge.