1、Unit 6听说训练ABCABCCCIn 2018./It was invented in 2018.The art of tea.The light bulb./She thinks the light bulb is the most important.Raise the heels./We can raise the heels.A famous inventor(will give them a talk).clearer13thfoundInventorhowAncient Chinese first used glasses to make things larger so th
2、at they could seethings clearer,but the glasses in the old times were not like the ones we see today.In the 13th century,Roger Bacon found the amazing function of glasses,and hethought that glasses could be used to help people to see.Later,an inventor in Italymade the first pair of glasses that could help people to see.In 1604,Johannes Kepler finally found out how glasses worked.
