1. (2019九上·珠海期中) 配对阅读。左栏是五个发明的描述，右栏是七个发明故事。请把这五个发明与对应的历史配对。

people need it to keep the electric things going on. It could be used in cameras, calculators, MP3 players and so on.    Ancient Chinese people invented it to calculate numbers. Even in the modern world, people in China still use it and find it faster than calculator.   It's one of the most important inventions in the world. People use it in the office every day. It's used for making books, magazines, newspapers and so on. We shouldn't waste it because it's made from trees.   Though it was invented in the western country, it was very popular in the 1970s in China. It's good for environment and for riders' health if you travel by it.   People keep this invention at home because it's very useful for daily life. It can keep the food cool and fresh so that people don't need to go food shopping often.

A. Abacus— 190 AD Use of the abacus, with its beads in a rack, was first recorded in China in about 190 AD. The Chinese version was the speediest way to do sums for centuries and, in the right hands, can still outpace electronic calculators. B. Battery— 1800 AD In 1780s, Italian physicist Luigi Galvani discovered that a dead frog's leg would twitch when he touched it with two pieces of metal. His friend, professor Alessandro Volta made the first battery which could be used in electronic machines. C. Bicycle— 1861 AD First showed as a gentleman's plaything in the1820s, the push-powered hobby-horsed(竹马)quickly became the most classless form of transport which is good for the environment too. D. Camera— 1826 AD Though British polymath William Talbot was the inventor of one of the earliest cameras, Joseph Nicephore Niepce produced the earliest surviving photograph on a pewter plate(锡板)in 1826. E. Refrigerator— 1834 AD Jacob Perkins was the first to describe how pipes filled with volatile(易挥发的)chemicals whose molecules(分子) evaporated(蒸发) very easily could keep food cool. F. Locks— 2000 BC Egyptians were the first to put things under lock and key about 4,000 years ago. G. Paper— 105 AD The Chinese began using bamboo fibers to make paper almost 2,000 years ago, but it took centuries for paper to envelop the world. People can't live without it now.