人教版九年级全册 Unit 6 When was it invented? 单元练习题 （含答案）

2025 年人教版英语九年级下册 Unit6 单元练习题 一、首字母提示填空（10 分） The light bulb was a great i_____ that has changed the world. Tea, one of the most popular drinks in the world, was first d_____ by Shen Nong. The zipper is widely used in our daily lives, but few people know who the i_____ is. The abacus was invented in the sixth c_____ by Chinese people. Potato chips were invented by m_____. A cook made them by mistake. Basketball was invented by a C_____ doctor named James Naismith. The Olympics are h_____ every four years. The popularity of basketball has r_____ around the world. The s_____ of the basketball is round, and it can bounce easily. The tea trade helped to s_____ the popularity of tea culture. 二、用括号内所给单词的适当形式填空（10 分） The telephone _____ (invent) by Alexander Graham Bell in 1876. The _____ (nation) kite festival is held in Weifang every year. The _____ (popular) of the Internet has made our lives more convenient. Tea is now _____ (wide) drunk all over the world. The story of how tea was invented is very _____ (interest). Many young people dream of becoming famous _____ (profession) basketball players. The _____ (Canada) singer Celine Dion is famous for her beautiful voice. We should avoid _____ (make) the same mistake again. The book _____ (write) by a famous writer last year. The _____ (compete) in the singing contest were all very talented. 三、完形填空（20 分） The history of the computer is a fascinating story of human innovation. The first computers were huge and 1. They were mainly used for scientific research and military purposes. As technology advanced, computers became smaller and more 2. The invention of the microprocessor was a 3 point in computer history. It made it possible for computers to be used in homes and offices. Steve Jobs and Steve Wozniak were two pioneers in the personal computer 4. They founded Apple Computer and introduced the Apple II, which was one of the first successful personal computers. It had a user - friendly interface and could be used for a variety of tasks, 5 word processing and gaming. Later, Microsoft, led by Bill Gates, developed the Windows operating system. This made personal computers even more accessible to the general public. The 6 of the Internet in the 1990s further revolutionized the way we use computers. It allowed people to 7 information and communicate with others around the world. Today, computers come in all shapes and sizes, from smartphones that fit in our pockets to powerful supercomputers that can solve complex scientific problems. They have become an 8 part of our lives, affecting almost every aspect of society, from education and business to entertainment. However, with the widespread use of computers, there are also some 9. Issues like privacy, cyber - security, and the impact on employment need to be addressed. But overall, the computer has 10 the world in ways we could never have imagined. A. expensive B. cheap C. small D. light A. powerful B. w ... ...