Soap is widely used in our lives around the world．Once soap was a dangerous﹣to﹣make hair p（76）　　 But it is something that it would be difficult to live without today．

Soap is everywhere．We use it every day and c（77）　　it as something important in our lives．

It also has an amazing h（78）　　，in Babylon around 2800 B．C．，the e（79）　　 known soap was made and used．Ancient Egyptians also made soap．At one time，soap﹣making was not s（80）　　

That's because lye（碱液）b（81）　　chemical burns or even made people blind in the making process．Other dangerous materials were also m（82）　　with animal fats and oils．Later．soap became

a（83）　　 in stores and people gradually stopped making it in their homes．

Originally （最初），soap was not mainly used for c（84）　　．Instead，it was used as gel（凝胶）for making hair stay in place or smell good．The Arabs first made the soap that we know today．

They created colored，liquid，and hard soaps．They even had soaps which were used for shaving（刮胡子）．

Soap became people's f（85）　　in the late 1900s．Advertising in Europe and the US helped people understand the connection between cleanliness and good health．Now．Soap is something we wouldn't want to live without．