Unit 5. Covalent Bonds
Past Continuous
Affirmative:
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I/he/she/it we/you/they |
was were |
testing measuring carrying out etc. |
For example:
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Yesterday Alex and Jim were carrying out the experiment. They began at 11 o’clock and finished at 12.30.
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I was measuring voltage during my physics class.
Compare Past Continuous (I was doing) and Past Simple (I did):
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Past Continuous (in the middle of an action)
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Past Simple (complete action)
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1. Fill in the table:
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Noun |
Verb |
Adjective |
Adverb |
Translation |
Transcription |
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radiate |
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constructive |
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production |
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pulsate |
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поглощение |
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heat |
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force |
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absorbent |
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n |
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state |
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perform |
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bond |
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create |
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количество |
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employ |
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equip |
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n |
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piece |
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represent |
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purify |
pure |
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adj |
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примесь |
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relative |
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similar |
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discovery |
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orbit |
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таблица |
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2. Read and translate the following international words:
Nouns (n): crystal, group, helium, radiation, radium, valence, uranium.
Adjectives (adj): central, covalent, cubic, periodic, vertical, economic(al).
Verbs (v): group, radiate, vibrate.