Question

5. Complete the texts using the correct form of the verbs in the Passive Voice. Refer to the Grammar Bank above if needed. WHY WERE VACCINES A GREAT INNOVATION? do / give / kill / make / need / not protect / not understand / find / conduct Disease is one of man's greatest enemies. Between 1347 and 1351, about 25 million people in Europe 1) by the Black Death. Before vaccines, people 2) from disease. The first vaccine 3) in about 1800, but the theory 4) for another 50 years. Today, vaccines 5) to most children in developed world, but more vaccines 6) in poorer countries. A lot of research 7) __ , although there is still so much 8) as even nowadays lots of epidemics 9) A GOOD OR BAD INVENTION Our lives 10) (make) better every day thanks to inventions. But sometimes, inventions can make our lives worse. This can happen when an invention 11) (not use) according to the inventor's plan. For example, Alfred Nobel, a Swedish scientist, invented a strong explosive in 1867. It 12) (call) dynamite and it revolutionized the world of engineering. After its invention, many bridges, tunnels, and other structures 13) (build) with the help of dynamite. However, dynamite 14) (also, use) to kill people in wars. This upset Nobel. Before his death, Nobel decided to use the money from his famous invention to make the world a better place. A special fund 15) (start) in Nobel's name. Every year, Nobel prizes 16) (give) for extraordinary work in science, medicine, literature, and the promotion of world peace. So many creative inventors, scientists, and other talented people all over the world 17) (award) it.​

Answer 1

1.Between 1347 and 1351, about 25 million people in Europe were killed by the Black Death.

2.Before vaccines, people were not protected from disease.

3-4.The first vaccine was made in about 1800, but the theory wasn't understood for another 50 years.

5-6.Today, vaccines are given,to most children in developed world, but more vaccines are needed in poor countries.

7-9.A lot of research is conducted, although there is still so much to be done , as even nowadays lots of epidemics are found.

10.Our lives are made better every day thanks to inventions.

11.This can happen when an invention is not used according to the inventor's plan.

12.It was called dynamite and it revolutionized the world of engineering.

13.After its invention, many bridges, tunnels, and other structures were built with the help of dynamite.

14.However, dynamite was also used to kill people in wars.

15.A special fund was started in Nobel's name.

16.Every year, Nobel prizes are given for extraordinary work in science, medicine, literature, and the promotion of world peace.

17.So many creative inventors, scientists, and talanted people all over the world were awarded/have been awarded it.

Answer 2

Why were vaccines a great innovation?

Vaccines have been a great innovation in the field of medicine. They have played a crucial role in preventing and controlling the spread of various diseases. Here's a completion of the text using the correct form of the verbs in the passive voice:

"Disease is one of man's greatest enemies. Between 1347 and 1351, about 25 million people in Europe were killed by the Black Death. Before vaccines, people were not protected from disease. The first vaccine was developed in about 1800, but the theory was not understood for another 50 years. Today, vaccines are given to most children in the developed world, but more vaccines are needed in poorer countries. A lot of research is conducted, although there is still so much that is not understood as even nowadays lots of epidemics are found."