八年级英语下册Unit4阶段能力训练Lessons19_21新版冀教版

冀教版八年级英语下册Unit 4阶段能力训练（Lessons 1921）.完形填空The computer is a very wonderful machine, and it is so _1_ today that it seems we _2_ live or work without it. Computers are used in many_3_in offices, in factories, in big shops, at schools, and even at home. With the computer, people are living a better _4_. The computer is one of the greatest inventions in the _5_ century. The first computer was built in America which was named Eninc, and it was not only very_6_， but also quite heavy. It was as big as two rooms! But the computer is developing very fast. Today they are becoming smaller and smaller, lighter and lighter, and_7_ faster and faster. There are so many kinds of different computers in the market that you can easily choose one that you like best. As the computer can do a lot of things for people, it helps us learn about the real world. With the computer, you can_8_ an email just in a few seconds to your friend or receive your _9_. Now you can see the computer really gives us a very nice picture about the world of tomorrow. So as students in the 21st century, we have to work hard and learn how to_10_ the computer very well. Don't you think so?( )1.A.beautiful Binteresting Cpopular Denjoyable( )2.A.can BcannotCmust Dmustn't( )3.A.roads Bstreets Ccrossings Dplaces( )4.A.life BfriendCfamily Dcountry( )5.A.18th B19th C20th D21st( )6.A.useful BlargeCsmall Dcheap( )7.A.studying Bteaching Cwalking Dworking( )8.A.give Btake Cpost Dsend ( )9.A.letter BbookChelp Dmessage( )10.A.get Buse Cread Dwrite.阅读理解The Internet is becoming 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. A network is a small group of computers put together. The Internet is a collection of 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 interest on the World Wide Web. What is the World Wide Web? The World Wide Web has been the most popular development of the Internet. The Web is like a big electronic book with millions of pages. These pages are called homepages.You can find information about almost anything 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 favourite sport or film star, talk to your friends or even do some shopping on the pages. Most pages have words, pictures and even sound or music. What is email? Electronic mail (Email) is a way of sending messages to other people. It's much quicker and cheaper than sending a letter.If you want to use email, you must have an email address. This address must have letters and dots and an “” (meaning “at”). This is what an address looks like: emailstar.net. Write a message, type in the person's email address, and then send the message across 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!( )1.The Internet is _Aa big computerBa small group of computersClots of computer networksDthe World Wide Web( )2.The World Wide Web is like _Aan electronic book BhomepagesCan electronic page Dan interesting picture( )3.People like to use email to send messages to their friends and family because _Athey don't have to pay any moneyBit's faster and cheaperCthey don't need to have stamps, envelopes or addressesDsending a mail is interesting.1.C 2.B 3.D 4.A 5.C6B 由第二段最后一句“It was as big as two rooms！”可知选B。7D 8.D 9.D 10.B.1.C 由短文第二段第三句和第四句“The Internet is many different networks from all over the world. These networks are called the Internet.”可知选C。2A 由短文第三段第二句“The Web is like a big electronic book with millions of pages.”可知选A。3B