Презентация к уроку английского языка "Building materials. Brick."

A brick is best described as a “building unit”. It may be made of burnt clay, of concrete, of mortar or of a composition of sawdust and other materials; in shape it is a rectangular solid and its weight is from 61/2 to 9 lb. The shape and convenient size of a brick enables a man to grip it with an easy confidence and, because of this, brick building has been popular for many hundreds of years. The hand of an average man is large enough to take a brick and he is able to handle more than 500 bricks in an eight-hour working day. It is necessary, therefore, for the “would be” bricklayer to practice handling a brick until he can control it with complete mastery and until he is able to place it into any desired position. By placing the hand over the surface of the upper of a brick and by placing the thumb centrally down the face of the brick with the joints of the fingers on the opposite face, the brick may be securely handled. It is necessary to protect the thumb and the fingers s leather pads which also prevent the skin from rough bricks.It is necessary, therefore, for the “would be” bricklayer to practice handling a brick until he can control it with complete mastery and until he is able to place it into any desired position. By placing the hand over the surface of the upper of a brick and by placing the thumb centrally down the face of the brick with the joints of the fingers on the opposite face, the brick may be securely handled. It is necessary to protect the thumb and the fingers s leather pads which also prevent the skin from rough bricks.