Question:
Read the text and answer the questions.
The term high definition once described a series of television systems originating from August 1936; however, these systems were only high definition when compared to earlier systems that were based on mechanical systems with as few as 30 lines of resolution. The ongoing competition between companies and nations to create true "HDTV" spanned the entire 20th century, as each new system became more HD than the last.In the beginning of the 21st century, this race has continued with 4k, 5k and current 8K systems.

The British high-definition TV service started trials in August 1936 and a regular service on 2 November 1936 using both the (mechanical) Baird 240 line sequential scan (later to be inaccurately rechristened 'progressive') and the (electronic) Marconi-EMI 405 line interlaced systems. The Baird system was discontinued in February 1937. In 1938 France followed with their own 441-line system, variants of which were also used by a number of other countries. The US NTSC 525-line system joined in 1941. In 1949 France introduced an even higher-resolution standard at 819 lines, a system that should have been high definition even by today's standards, but was monochrome only and the technical limitations of the time prevented it from achieving the definition of which it should have been capable. All of these systems used interlacing and a 4:3 aspect ratio except the 240-line system which was progressive (actually described at the time by the technically correct term "sequential") and the 405-line system which started as 5:4 and later changed to 4:3. The 405-line system adopted the (at that time) revolutionary idea of interlaced scanning to overcome the flicker problem of the 240-line with its 25 Hz frame rate. The 240-line system could have doubled its frame rate but this would have meant that the transmitted signal would have doubled in bandwidth, an unacceptable option as the video baseband bandwidth was required to be not more than 3 MHz.
1. What can't the video baseband bandwidth be more than?
2. Whose high-definition TV service first started trials?
3. When?
4. When did regular service start?
5. What did high definition originally describe?
6. How many lines of resolution did they have?
7. What drove companies and nations to create true HDTV?
8. How long did that competition last?
9. What is the most current system?
10. What was one of the previous systems in this race?
11. Whas the Baird 240 scan mechanical or electrical?
12. What was it wrongly known as?
13. Which system was electronic?
14. How many lines did it have?
15. Was it interlaced?
16. When did the Brits kill it off?
17. What country had their own system the next year?
18. How many lines did they have in 1949?
19. Did it have any color?
20. What was the aspect ratio used?

Numbered answers:
1. 3 MHz
2. The British high-definition TV service
3. August 1936
4. 2 November 1936
5. A series of television systems
6. 30
7. Competition
8. The entire 20th century
9. 8K systems.
10. 4k
11. mechanical
12. Progressive
13. Marconi-EMI 405
14. 405
15. Yes
16. 1937.
17. France
18. 819
19. No
20. 4:3

Question:
Read the text and answer the questions.
The idea of not having a phone at ail could be beneficial sounds crazy to people who are addicted to the global Internet or even just Facebook. Indeed, it sounds like a pain. But some luxuries of a phone-free lifestyle make us realize that freedom has long been absent from our lives with a phone. According to The Wall Street Journal's Anton Troianovski. people expect less of you when you don't have a cell phone. Melissa Hildebrand, for example, doesn't even own n phone. She just leaves if her friends don't turn up on time for an event or meeting. "She gives them 15 to 30 minutes to show up," writes Troianovski. With a cell phone in hand, one receives apology calls, which will lengthen the waiting. Without a phone, that responsibility seems to reduce. Dean Obeidallah of CNN believes that not having a cell phone gives him the ability to see things; A beautiful woman burning past while fixing her makeup; Asian tourists busy taking photos; a businessman talking on his phone and looking important. "Instead of texting or checking my e-mail, I began to actually, look at the people I sharing the streets with. It is truly like a movie set filled with extras from all walks of life, Obeidallah said. Along with these small benefits of not having a phone, however, come all its inconvenience. Nancy Kadlick told The Wall Street Journal that she once missed an airport pick-up due to not having a phone. For Rebecca Greenfield, a columnist for the Atlantic Wire, the inconvenience of not having a phone outweigh(;) these small luxuries. But she also said: "Not having one every once in a while sounds like a nice practice."
1. When do people expect less of you?
2. Who doesn't own one?
3. Why not?
4. Is anyone else phone free?
5. Was it convenient for her?
6. Why not?
7. Who leaves somewhere if her friends are late?
8. How long does she give them to show up?
9. What types of calls are avoided?
10. Who thinks that not having a phone all the time would be nice?
11. What does she do?
12. Who is with CNN?
13. What is missing from our life when we have a phone?
14. What does going without a phone help us to understand?
15. What sounds crazy to some people?
16. What people does it seem that way to?
17. What is longer when you have a cell phone?
18. Who quit sending messages and checking his phone all the time?
19. What does he do instead?
20. What do these things remind him of?
Numbered answers:
1. when you don't have a cell phone
2. Dean Obeidallah
3. he believes that not having a cell phone gives him the ability to see things
4. Nancy Kadlick
5. no
6. she once missed an airport pick-up due to not having a phone
7. Melissa Hildebrand
8. 15 to 30 minutes
9. apology calls
10. Rebecca Greenfield
11. a columnist for the Atlantic Wire
12. Dean Obeidallah
13. responsibility
14. that freedom that has long been absent from our lives
15. The idea of not having a phone at all
16. people who are addicted to the global Internet
17. the waiting
18. Dean Obeidallah
19. He sees things
20. a movie set