Question

Actividad 4
Listen to the 19th track then try to write the conversation on your notebook,
finally answer the next 5 questions about the conversation.
« How long have diseases been around?
Scientists do not know exactly how long some diseases have been around. But
they have studied and continued to study the origin of viruses and bacteria.
- Have scientists always known viruses exist?
No. For example when Louis Pasteur and Edward Jenner developed the first
vaccines to protect against viral infections they didn't know that viruses existed.
- When did scientists find out viruses existed?
Scientists started studying viruses and the infections they caused around the end
of the 19th century.
- Did the doctors discovered viruses?
No. The discovery of viruses was the result of the work of the botanical scientists
that were investigating a disease on tobacco plants.
- Which was the first vaccines?
The smallpox vaccine was the first one that was developed against the contagious
disease."
1. The main idea of the text is:
- The history of germs
- The viruses
2. The first vaccines were developed by:
- Ferdinand Cohn and Martinus Willem
- Louis Pasteur's and Edward Jenner
3. to protect people from:
- Bacteriological infections
- Virus infections.
4. Scientists started studying viruses at the end of the:
19th Century
- 18th Century
5. Who discovered viruses.
- A fisherman
- Botanical scientists.

Answer 1

Respuesta:

Explicación:

Cómo resorbel está oración You finish your nomework too late

Answer 2

Respuesta:

1.- the viruses

2.- Louis Pasteur's and Edward Jenner

3.- Virus infections

4.- 19th Century

5.- Botanical scientists

Explicación:

para la actividad de ingles de la semana 11