XB 2 Unit 1 语法填空

Unit 1 Science and Scientists
第一篇
Cards and digital technologies 1. _________ (kill) off cash slowly, but is it a cause for concern? Not 2. _________ (necessary). Here are some ways of making the most of digital finance.   
Cash is no longer king. Over recent years fewer and fewer transactions have been made with cash. The most recent figures show coins and notes are used just 34% of 3. _________ time, down from 63% a decade ago. And the usage 4. _________ (predict) to fall to just 10% in 15 years.
Instead, we're paying with cards and digital technologies. Some of this is down to user choice, with contact-less cards and smart phones making spending 5. _________ (fast) and more convenient.
But it's also being forced upon us. Some retailers are refusing physical money as they can avoid the high bank charges levied(征收) at them for 6. _________ (handle)cash. Meanwhile it's harder to get your hands on notes as cash machines and 7. _________ (bank) disappear from the high street. And these are trends which are likely 8. _________ (increase) in the coming years.
This could be bad news if you still primarily use cash, 9. _________that's how you pay your bills or how you budget. For some, cash is just what you know. For 10. _________， cash is a necessity—especially when going digital is the alternative.
As a result, this move towards cashless society makes many uneasy.
1. _________ 2. _________ 3. _________ 4. _________ 5. _________
6. _________ 7. _________ 8. _________ 9. _________ 10. _________
第二篇
John Snow Defeats “King Cholera”
Cholera used to be one of the most feared 1. _________ (disease) in the world until John Snow showed how it could be overcome. Cholera, as 2. _________ deadly disease of its day, threatened ordinary people. No one knew its cause or its cure. Every time cholera broke out, large numbers of 3_________ (frighten) people died. John Snow was determined 4. _________ (solve) this problem. He knew only if he found its cause would it be controlled.
There were two theories that 5. _________ (possible) explained how people got infected. John Snow 6. _________ (subscribe) to the theory that cholera was caused by an infection from germs in food or water.
In 1854, another outbreak of cholera hit London. John Snow decided to investigate. He marked the places on a map, 7. _________ gave him a valuable clue about the cause of the disease. He found many of the deaths were near the water pump in Broad Street. Some households had no deaths 8. _________ these people drank free beer. It seemed that the water pump was 9. _________ (blame). He made further research and concluded that polluted water led to the disease. Finally, “King Cholera” 10. _________ (defeat). Thanks to John Snow, we now know how to prevent cholera.
1. _________ 2. _________ 3. _________ 4. _________ 5. _________
6. _________ 7. _________ 8. _________ 9. _________ 10. _________
Unit1
第一篇are killing; necessarily; the; is predicted; faster; handling; banks; to increase; whether; others   
第二篇diseases; a; frightened; to solve; possibly; subscribed; which；because; to blame; was defeated