Please the passage and find important sentences.

    It's said that America receives tens of thousands of inventions every year. Of these only a few become (受欢迎的)and make a lot of money. There are thousands of inventions that (没有人) wants. Here are some of these.

    In 1879, somebody invented a new type of "fire escape ". This was a hat which had a parachute(降落伞) on top. You (连接) the hat with a strap under your chin. With this special hat on you could jump from a building on (火) and fly down safely. With it there was also a special (双) of shoes, so the person could land safely.

    There was a special alarm clock for people who had (问题) waking up in the morning. This clock had six pieces of wood that hung above your head. At the right time the pieces of wood (掉落) on you when you were sleeping. They hit you but did not (伤害) you, Therefore, you woke up.

    Another invention was the bicycle seat to stop a thief. This seat had needles in it. When the (拥有者) rode the bicycle the needles were down. But when the bicycle was not in use, the needles were up. So a thief who jumped on the bike got a big (惊喜).

Don't worry. Let's .

    A famous designer(设计师) and a university student produce a new cup called Vessyl. They have spent several years1it. The smart cup can not only tell Coca Cola from Pepsi Cola,2also tell people whether they should drink water or not.

    When people3liquid(液体) into this smart cup, a few seconds(秒) later, it can check this kind of liquid and tell them what it is. Then it gives4information of the drink, such as sugar, fat and calorie. When people put the cup in their5, it can also show them the condition of their bodies. If they are6, I can tell them to drink water.

    "My partner and I want people to7healthy. In modern society, people are usually8busy to do exercise, or even drink enough water every day. They have much9. We produce this smart cup so that people can make a choice10," the designer said.