Unit 6 When was it invented B卷能力提升（含解析）人教版九年级英语单元双测卷

Unit 6 When was it invented （B卷能力提升）—人教版九年级英语单元双测卷 一、单选题（共10小题；每小题3分，满分30分） 1. —When_____ the telephone_____ —In 1876. A. is; invented B. was; invented C. did; invent D. had; invented 2. The light bulb is used for_____ in the dark. A. see B. sees C. seeing D. saw 3. —Do you know_____ —Yes, in 1927. A. when was the TV invented B. when the TV was invented C. who was the TV invented by D. who the TV was invented by 4. The computer is one of the most important_____ in the world. A. inventions B. inventors C. invention D. inventor 5. Potato chips were invented by a cook_____ George Crum. A. is called B. calls C. called D. calling 6. —_____ was the zipper invented —Whitcomb Judson invented it in 1893. A. When B. How C. Who D. Where 7. These new cars_____ in our factory last month. A. produce B. produced C. are produced D. were produced 8. The abacus(算盘) was invented_____ the sixth century by the Chinese. A. in B. on C. at D. for 9. —I don't know_____. —You can go and ask Mary. A. when does the train arrive B. if she has come or not C. what I should buy for my sister D. why is he late for class 10. —What do you think of the story about the boy_____ lost his left arm in a car accident —It's really_____ unusual experience for him. A. who; a B. which; an C. who; an D. that; a 二、完形填空（共10小题；每小题3分，满分30分） The Internet is becoming more and more important in our daily life. How much do you know about it What is the Internet The Internet is a large, worldwide collection of computer networks(网络). A network is a small group of computers 11 together. The Internet is many different networks from all over the world. These networks are called the Internet. Once you have learned to use the Internet, you can have a lot of 12 on the World Wide Web(万维网). What is the World Wide Web The World Wide Web has been the most 13 development of the Internet. The Web is like a big electronic(电子的) book with millions of pages. These pages are called homepages(主页). You can find information about almost 14 in the world on these pages. For example, you can use the Internet instead of a library to find information for your homework. You can also find information about your favorite sport or film star, talk to your friends or 15 a film or a game on the Internet. Most pages have words, pictures and even sound or music. What is e - mail Electronic mail (e - mail) is a way of 16 messages to other people. It's much 17 and quicker than sending a letter. If you want to use e - mail, you must have an e - mail address. This address must have letters and dots(点) and an @ (means "at"). This is what an address 18 : emily @ . Write a message, type in the person's e - mail address, and then send the message 19 the Internet. People don't need to use stamps, envelopes or go to the post office since the invention of the Internet. Quick, easy and interesting — that's the Internet! You can also 20 chat(聊天) with your friends ... ...