L10 U5 Inventions

1. In 1886 in the United States, a pharmacist named Dr. John Pemberton tried to invent a medicine because he wanted a cure for ____.

• A. headache             

•    B. headaches              

• C. a headache             

• D. the headaches

2. Both inventors and engineers look for ways to improve things in areas like health, food, safety, transportation, aerospace, electronics, ____, and the environment.

• A. communication                     

• B. communicative

• C. communicator    

• D. communicating

3. The European Patent Convention, which was implemented in 1977, created a European Patent Office that can issue ____ European patent.

• A. a                            

• B. an                        

•     C.the                          

• D. no article

4. The first American ____ the propelling of a boat by steam was William Henry, a gunsmith of Lancaster, Pennsylvania.

• A. attempt               

•     B. to attempt              

• C. attempting        

•       D. attempted

5. ____ with the internet, which is a system of linked computer networks, the worldwide web was invented by British computer scientist Tim Berners-Lee.

• A. Not to confuse       

• B. Not to be confused                     

• C. To be not confused           

•   D. Confused not to be

6. The carbon dioxide gas given ____ by the fermenting vat was known as "fixed air".

• A. off                         

•   B. away                    

•    C.out                         

• D. up

7. In 1772, Priestley published ____ description of how to make carbonated water, using sulphuric acid and chalk.

• A. an                         

•   B. its                           

• C. a                         

•      D. each

8. Priestley found he could dissolve the gas in the water and that it ____ a refreshing drink - of a kind that met the approval of his clean-living, religious-minded friends.

• A. makes                    

• B. made                      

• C. has made               

• D. was made

10. The bicycle as we know it today was originally developed as the "safety bicycle", because other bikes ____ were extremely dangerous.

• A. at the time             

• B. at a time                 

• C. for a time       

•          D. for the time

11. Charles Macintosh, an amateur chemist, was experimenting with coal-tar naphtha, a chemical waste product, and realized that it was a powerful solvent that ____ a solution from rubber.

• A. will make              

• B. would made            

• C. can make               

• D. could make