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Questions to think about.

LANGUAGE FOCUS | Read and translate the text. | Prepare a report on the topic under discussion. | COMPREHENSION CHECK | Read and translate the text. | Read and translate the text. | Read and translate the text. | LANGUAGE FOCUS | Read and translate the text. |


Читайте также:
  1. A) Look at this extract from a TV guide and the photo and answer the questions.
  2. A) Read the article to find the answers to these questions.
  3. A) Try to answer these questions.
  4. A. Read the extract below and answer the questions.
  5. A. Read the text and answer the questions below.
  6. A. Read the text and answer the questions below.
  7. After reading the essay answer the following questions

a. Describe viruses. Are they considered living?

b. What might account for the origin of viruses?

c. How do viruses increase in number? Describe the different mechanisms.

d. What are five diseases affecting humans that are caused by viruses?

e. Describe similarities and differences between viruses and subviruses.

3. Think of 5-7 statements that would contradict the contents of the text.

LANGUAGE FOCUS

1. Match the words that are: a) similar and b) opposite in meaning:

a) b)
lysing to make terminally useless
to promote way inside inability
conventional dissolving normally continuously
mode structure beneficial inner
to induce regular, normal capacity abnormally
machinery to contribute outer outside

2. Form the derivatives of the words given in the table (where possible):

Noun Verb Adjective
  to interfere  
  to revise  
virus    
infection    
    befeficial
  to succeed  
    sore
theory    
  to elucidate  
  to transfer  

3. Define the following terms:

virus prions retroviruses
rhinovirus - ["raInqV'vaI(q)rqs] influenza viruses - ["InflV'enzq] ['vaI(q)rqsi:z] bacteriophage - [bxk'tI(q)rIqfeIdZ]
subvirus AIDS viral capsid

4. Match the first half of a sentence in column A with the appropriate second half in column B:

A B
1. Viruses are from 10 to 100 times smaller a) than to one another.
2. Viruses contain nucleic acids b) which would explain their small and uncertain molecular weights.
3. Viruses are more closely related to their hosts c) than the typical bacterium.
4. The mode of prion reproduction might involve fracture and continued growth, d) that would identify it as living.
5. A virus is inert, incapable of reproduction, or of any metabolic functions e) which are enclosed in a protective coat of protein.

5. Put the parts of the sentences in the right order:

a. Not, viruses, metabolize, do, cells, unlike, living.

b. Cell, within, are, the, host, virus, particles, the, assembled.

c. Known, the, virus, fastest, virus, mutating, the, influenza, is.

d. That, any, acids, contain, nucleic, there, no, is, evidence, prions.

e. Viruses, be, prions, actually, may, conventional.

f. Are, the, subviruses, infectious, smallest, agents, termed.

FOLLOW-UP ACTIVITIES

1. Prepare a dialogue with your partner discussing:

a. Viruses.

b. Subviruses.

c. Similarities between viruses and subviruses.

d. Differences between viruses and subviruses.

2. Sum up what you have learned about viruses and subviruses and prepare a report about them.

UNIT 2

MONERA


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