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Vocabulary work

  1. There are some words given in bold type in the text. Choose their synonyms in the box below.

to emit

to discover

to isolate

specimen

enough

highly

to yield

astonishment

  1. Make up word combinations using the words from columns A and B. Each word can be used once only. Consult the text if necessary. Think of 3-4 sentences with these expressions and write them down.

A

B

to develop

rays

to wrap in

currents

to give off

radioactive elements

to invent

energy

to measure

a plate

to attract

pitchblende

to release

one’s interest

to isolate

black paper

to process

an electrometer

  1. Fill in the table with the missing part of speech. (Add some more nouns).

Verb

Noun

astonish

emission

measure

detection

fluoresce

dark

modify

belief

explain

separation

  1. Use the words given in capitals at the end of each line to form a word that fits in the space in the same line.

1. New rays were soon … . DETECTION

2. ….. compounds did not produce X-rays. FLUORESCE

3. The plate … . DARK

4. Uranium gave off … rays. PENETRATE

5. Marie Curie analyzed rays … by pitchblende. EMISSION

6. She … the electrical discharge of the rays. MEASUREMENT

7. Uranium compounds greatly … her. ATTRACTION

8. He … that atoms were not solid. BELIEF

9. They made another amazing … . DISCOVER

10. The Curies isolated two unknown … elements. RADIOACTIVITY

Follow-up activities

    1. Choose key sentences from the text and write them down.

    2. Use your key sentences while speaking about discoveries made by Henri Becquerel and the Curies.

    3. Find some additional information about Henri Becquerel and the Curies and use in your reports about these scientists.

Text b further advances in the field of radioactivity

Pre-reading tasks

  1. The text you are going to read is headlined “Further advances in the field of radioactivity”. In your opinion,

  • what does it run about?

  • what discoveries are mentioned in it?

  1. Do you remember any other scientists besides Becquerel and the Curies who contributed to the study of radioactivity? What discoveries did they make?

  2. Think of 3-4 questions the answers to which you expect to find in the text. Write them down. (Did you manage to answer these questions after reading the text?)

Reading

Read the text and fulfill the tasks to follow.