《When was it invented?》PPT课件14
《When was it invented?》PPT课件14第2页

Something about zipper

Do you know how small _______ changed the world? That’s the subject for my ____ ____. I want to introduce the _____. It is ____ a great invention ____ it is often ____ in our ____ _____. Zippers can ____ ____ ___ dresses, ______, shoes, bags, almost everywhere. I have seen on a ______ that the _________ of different inventions were ______. There it ______ that the zipper was invented ___ Whitcomb Judson in 1893. But it wasn’t used _______ at that time. In around 1917, it become ___________.

inventions

school project

zipper

such

that

used

daily lives

be seen on

trousers

website

pioneers

listed

mentioned

by

widely

popular