- •Unit1. Diodes Language Work
- •Read and translate the following international words:
- •Consult the table above and write full sentences. Use is/are. Where possible change sentences to use isn’t/aren’t.
- •Mind the word-order and compile sentences from the following words:
- •Put questions to the following sentences:
- •Start from the second component
- •Choose as many words from the table оf ex. 1 as you can and form sensible sentences in Present Simple (affirmative, negative and interrogative).
- •Specialist Reading
- •Mark the following sentences as true (t) or false (f). Then read the text “Diodes” and check yourself.
- •Read the text again and complete the sentences with the correct ending.
- •Work in pairs. Ask your partner questions based on the text. Make sure you use correct auxiliary verb.
- •Speaking
- •In Russian write a content-based summary of the text you have translated.
- •Make a reverse written translation (from Russian into English) of your summary.
- •Find more information about conduction of current in a semiconductor diode and tell your group mates.
Unit1. Diodes Language Work
Present Simple
Positive
I/we/you/they |
amplify/define / direct |
|
he/she/it |
amplifies/defines / directs |
|
For example:
Diodes permit current to flow in only one direction.
The dictionary defines electronics as the study of conduction of electricity.
Spelling
-es after -s / -sh / -ch: pass passes, finish finishes, watchwatches
-y -ies: study studies, rectifyrectifies
also: do does, gogoes
Reading
|
|
directs |
–s(es) |
|
defines, amplifies |
|
|
passes |
Remember:
I/we/you/they have
he/she/it has
For example:
Diodes have 2 basic elements.
Every diode has a cathode and a plate.
Negative (with the auxiliary verb)
I/we/you/they |
don't |
amplify/define / direct |
he/she/it |
doesn't |
|
For example:
Diodes don’t permit current to flow in opposite directions.
Positive voltage on the plate doesn’t repel electrons.
Negative (with NO auxiliary verb)
I/we/you/they/he/she/it
|
can/ may/must
|
not |
amplify/define / direct |
I/we/you/they/he/she/it
|
am/is/are
|
not |
a physicist(s) |
I/we/you/they/he/she/it
|
have/has |
no/hasn’t or don’t/doesn’t have |
-/a heater |
For example:
These devices can’t be amplifiers.
They are not physicists.
This gadget doesn’t have a/has no heater.
Remember: There is no grid in a diode. But: There isn’t a grid in a diode.
A diode has no grid. A diode hasn’t a grid.
Questions (with the auxiliary verb)
Do |
I/we/you/they |
amplify/define / direct? |
Does |
he/she/it |
|
For example:
Do diodes permit current to flow in only one direction?
Does the dictionary define electronics as the study of conduction of electricity?
Questions (with NO auxiliary verb)
Can/ may/must Am/is/are Have/has |
I/we/you/they/ he/she/it I/we/you/they /he/she/it I/we/you/they/ he/she/it |
amplify/define/direct? (a) physicist(s)/direct current? a heater? |
For example:
Can these devices be amplifiers?
Are they physicists?
Has this gadget a heater?/Does this gadget have a heater?
Remember: 1. I am a physicist, aren’t I?
2. In the following examples, do is also the main verb (do you do / doesn't do etc.):
□ 'What do you do?' I work in a shop.'
□ He's always so lazy. He doesn't do anything to help.
The verb to be
I |
am |
(I'm) |
|
I |
am |
not |
(I'm not) |
|
|
he |
|
(he's) |
|
he |
|
|
(he's not |
or |
he isn't) |
she |
is |
(she's) |
|
she |
is |
not |
(she's not |
or |
she isn't) |
it |
|
(it's) |
|
it |
|
|
(it's not |
or |
it isn't) |
we |
|
(we're) |
|
we |
|
|
(we're not |
or |
we aren't) |
you |
are |
(you're) |
|
you |
are |
not |
(you're not |
or |
you aren't) |
they |
|
(they're) |
|
they |
|
|
(they're not |
or |
they aren't) |
For example:
I am/am not a physicist.
He is/is not a famous scientist.
Rectifier isn’t an electrical device.
It isn’t easy to explain the operation of semiconductor devices.
Fill in the table
Noun |
Verb |
Adjective |
Adverb |
Translation |
Transcription
|
|
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alternating |
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|
|
amplification |
|
amplifying |
|
усиление |
|
anode |
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apply |
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attract |
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cathode |
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compare (to, with) |
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circuit |
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схема |
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charge |
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conduction conductivity conductor semiconductor |
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(n)
(v) |
current AC(a.c.=alternating current) DC(d.c.=direct current) |
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development |
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разработка |
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device |
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diode |
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directly |
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electrode |
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electron |
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emit |
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flow |
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heat |
heat |
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operator operation |
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patent
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(n,v) |
phenomenon (pl.- phenomena) |
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явление |
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repel |
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rectifier |
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source |
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switch (on/off) |
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tube |
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unit |
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блок, элемент |
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vacuum
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