1. Unit 2 workbook

3. A 1. Multitasking 2. Information overload 3. Sedentary 4. Interaction 5. Impersonal 6. Recipe for disaster 7. Overdependence 8. Liberating 9. Promote

4. A 1. Passive 2. Active 3. Passive 4. Active 5. Active 6. Active 7. Passive 8. Passive 9. Active 10. Passive

5. B 1. That book was written by professors at a famous unviersity. 2. The soccer match was attended by over ten thousand people. 3. Electric cars are produced by several companies. 4. The journalists’ questions weren’t answered by the president.

6. 5. Several dangerous criminals were arrested by the police. 6. Many new schools are being built by the government. 7. I wasn’t surprised by the bad news. 8. Christmas is celebrated in summer by people in Australia.

7. C 1. Grapes are grown in Italy. 2. Cheese is made/ produced in France. 3. Chocolate is made/ produced in Switzerland. 4. Wine is made/ produced in Germany.

9. B Names: Charles Goodyear Percy Spencer Spence Silver and Art Fry George de Mestral

10. Inventions: Vulcanization of rubber Microwave oven Post-it notes Velcro

11. Year: 1839 1940s 1979 1948

12. How it was invented: Dropped rubber on a hot stove Noticed a melted chocolate bar Papers fell out ofhis song book Noticed sticky seeds

13. Uses: Car tires, shoe soles Cooking food Notes Shoes, clothes, backpacks

14. C 1. Necessity 2. Kernels 3. Fur 4. Practically 5. Fasteners 6. Slips 7. Flexible

15. A 1. Instant messaging has made my daily life much easier. (circled: instant messaging) 2. One reason I admire my grandmother is because she is so generous. (circled: I admire my grandmother) 3. In my country, university entrance exams are a stressful experience for students. (circled: university entrance exams)

16. 4. A camping trip is the most relaxing kind of vacation. (circled: A camping trip) 5. Air pollution is causing serious problems for the people of my city. (circled: Air pollution) 6. My first day at my new job was not easy for me. (circled: My first day at my new job)

17. B 1. B 2. A 3. C 4. C