【淘金專四聽寫】063 左撇子

International Left-Handers Day is August 13th. The Left-Handers Club started the holiday in 1992. It wanted left-handers around the world to celebrate. And it wanted to bring attention to the everyday problems of people who use their left hands. One of these problems is difficulty using equipment and tools, like scissors. In general, most tools and equipment are made for people who are right-handed. The Left-Handers Club tries to educate designers and manufacturers to consider the safety of left-handed people when producing their products. Another problem is that many societies have considered it bad to be left-handed. Some teachers and parents have tried to force children who used their left hand to use their right one instead. Scientists do not really know why some people are left-handed. They have believed the reason is genetic. Researchers in Britain recently identified a gene that helps confirm this. They say the gene increases the chance of being left-handed.