Keys to Exercises 1.what is making the modern college campus change greatly?A fleet of laptops, smartphones and Internet connectivity 24 hours a day.2.What has made colleges the most Internet -accessible spots in the world?Wireless Internet access anywhere and anytime on campus.3.According to on a leading university director, why are college students encouraged to use smartphones on campus?Because smartphones could draw students’ attention and encourage sophistical thinking. 4.Why does the author ask us to remember to regulate and balance our time?Because too much time online can mean too little time in real-life studying or exercising or visiting with friends. If we spend too much time online, we will be cut off from the real world.5.Some colleges increased their budgets for information technology. What did they do with the money?They used the money to wire dorms with highspeed connections and equip their campuses with Wi-Fi networks. 6.Why did one university give every one of its incoming freshmen a free Apple iPad?Because the university was afraid that its technology was not as advanced as that of other universities, it gave away free Apple iPads to compensate for its inferiosity in this aspect.7.In what condition will a university be at a competitive disadvantage according to a university president?If a university can't keep up with the rest of the world, or if it can't provide high-brandwidth information as expected, it will be at a competitive disadvantage.8.Why are colleges around the world replacing their computer systems?It is mainly because they want to provide students with the most advantages free system. 1. competitive 2. transform 3. typical 4. response 5. adopted 6. focused 7. compensate 8. analyze 9. regulate 10. estimate Keys to Task 4 1.scenery 2. machiner 3. detect 4. comparative5.explosive 6.Economic 7.Massive 8.Representative9. Modernize 10.Characterize11.Computerize 12. SummarizeKeys to Task 5 1.scenery 2. machinery 3. summarize 4. specializes 5. Massive 6. detect 7.representative 8.characterize parartive 10.modernize 11. explosive 12. computerized Keys to Task 6 1. J 2. H 3. L 4. N 5.F 6. I 7. E 8.A 9. C 10. O Keys to Task 7 1.fired off 2.keep up with3.set up 4.account for5.stand out 6.add to7.take the lead 8.at a disadvantage9. in large part 10. visit with Key to Task 9 (page 72)It is not uncommon to see teenagers smoking today. Some of them smoke because of peer pressure. When they see some of their friends smoking, they feel the pressure to try it out in order to “fit in” with the crowd. Some other teenagers smoke because they want to imitate adults or appear to be mature. Teenagers like to imitate their favorite stars and adults around them. So, parents who smoke may set a bad example for their children. In conclusion, the causes of teenager smoking can be attributed to peer pressure and their intention to lok like adults. Key to Task 11 China’s space industry was launched in 1956. Over the past decades, China’s space industry has created one miracle after another. In 1970 China launched its first man-made earth satellite, ranking China the fifth country in the world to independently develop and launch man-made earth satellites. In 1992 China began to carry out the manned spaceflight program. In 2003 China launched Shenzhou-5, a manned spaceship. The successful launch made China the third country to launch manned spaceships. In 2007 Chang’e-1, the first lunar-orbiting man-made satellite, was sent to space. In 2013 Shenzhou-10, the fifth manned spaceship, was launched successfully, laying the foundation for building the chinese Space Station. Reading skills1.O 2. O 3. O 4. F 5. F 6. F 7. O 8. OUnderstanding the text 1—5 ACBCA 6—8 DDCLanguage focusWords in use1.concerned 2. release 3. positive 4. ceased 5. enable 6. decline 7. scheduled 8. essential 9. neglect 10. arouseExpressions in use1.of 2. to 3. with 4. of 5. from 6. but 7. to 8. for Sentence structure1.To make a good impression on the interviewer, he planned to get a new haircut and buy a new suit.2.To greatly improve people’s living standards, we should attach great importance to the development of the economy.3.The customs officers examine people who want to cross the bridge to prevent anyone from carrying guns or drugs.4.People do not feel sorry for John because he is shy and awkward in front of others.5.The traffic accident did not happen because the driver was not skillful at driving.6.He did not decide to accept a job in the local company because he was offered high pay.Collocation1.Homework 2. lecture 3. course(s) 4. exam 5. presentations 6. Research project 7. degree 8. shopping 9. washing 10. exercise11. Things 12. more good than harm 。