高中英语外研版 (2019)选择性必修 第二册Unit 3 Times change!课后作业题

这是一份高中英语外研版 (2019)选择性必修 第二册Unit 3 Times change!课后作业题，共2页。
The golden age is before us, not behind us.—Mark Twain黄金时代在我们面前而不在我们背后。——马克·吐温The challenge for our generation is to create a world where everyone has a sense of purpose.—Zuckerberg 我们这代人面临的挑战，是创造一个人人都能有使命感的世界。——扎克伯格Comprehensive reform demands dedication, courage and patience.—Reinhard Mohn全面改革需要奉献、勇气和耐心。——莱恩哈德·摩恩Every generation needs regeneration.—Spurgeon每一代都需要更新。——斯珀吉翁It was the best of times, it was the worst of times；it was the age of wisdom, it was the age of foolishness；it was the epoch of belief, it was the epoch of incredulity；it was the season of light, it was the season of darkness；it was the spring of hope, it was the winter of despair；we had everything before us, we had nothing before us；we were all going direct to Heaven, we were all going direct to the other way.Can you imagine a world without the Internet? It's surprising to think about it.Now, China has more than 162 million Internet users, according to the China Internet Network Information Centre.This is the second largest number of users in the world after the United States.Today, 66% of Chinese netizens are teenagers.“They spend about thirteen hours every week online，” said Qian Hulin，an Internet expert.Doctor Song in Beijing Xuanwu Hospital said about 14% of Chinese netizens who are teens often lasted over ten hours to play online games.The main reasons why teenagers surf the Net are to search for information, to communicate with others and to have fun.On the Internet, teenagers can find out almost anything.And surfing the Net can help students with their homework and widen their knowledge.Li Dong, a teacher at No.41 Middle School in Shijiazhuang, likes her students to use the Internet.“When we talk in class, students who surf the Net usually know more background information than the others，” she said.In addition, people can use the Internet to write letters or stories, send e­mails and chat.Many teens keep in touch with their friends online.It is cheaper than phoning somebody far away and also much quicker.[探索发现]1．Find out which country has the largest number of users in the world.The United States.2．Find out why teenagers surf the Net.They want to search for information, to communicate with others and to have fun.