我家有一台老风车,现在很少用了。它的主要作用是清理稻谷。风车的顶端有一个又大又宽的梯形帽子,叫做漏斗。它是用来装稻谷的。漏斗下面有一个长方形的闸门。打开闸门开关,稻谷就像瀑布一样哗哗地流下去。闸门旁边是手摇柄,它连接着由几片大木块组成的叶轮。摇动手摇柄的时候,叶轮跟着转动,呼啦呼啦像喘气一样。风车的旁边是一个宽大的出风口。叶轮转起来,形成的风就 My family has an old windmill, now seldom used. Its main role is to clean up the rice. The top of the windmill has a large and wide trapezoidal hat, called funnel. It is used to hold rice. Under the funnel there is a rectangular gate. Open the gate switch, the rice is like a waterfall rushing flow down. Beside the gate is the crank, which is connected to an impeller consisting of several large blocks. When the hand crank shakes, the impeller rotates with it, and the hula huffs like a gasp. Next to the windmill is a generous air outlet. Impeller turn, the wind formed