1. Fill in the table

Noun	Verb	Adjective	Adverb	Translation	Transcription
determination	determine	determinate determinative	-	определение
diffusion				диффузия
	dope			добавлять
	eliminate
gain
height
junction				переход, соединение
	measure
plane				плоскость
region				область, зона
				знак
value				величина, значение

2. Put the verbs in brackets into the correct form.

1. If I … (know) the concentration of impurities in a solution, I would dope them.

2. Unfortunately I forgot your e-mail address when I went on holiday. If … (I/have) your e-mail address, … (I/send) you a message.

3. If you were in my position, how … (measure) height of a potential barrier?

4. If I … (have) a chance, I … (eliminate) stutter.

5. I’m tired. If … (I/not/be) tired, I … (do) all measurements.

6. The scientists were not very busy last year. If … (they/be) busy, they … (not/obtain) so many substances in scientific laboratories.

7. I wouldn’t mind helping you in a laboratory if the results … (be) better.

8. I … (not/experiment) with this matter if I … (be) you.

3. Write a sentence with if … for each situation.

1. The process of determination of rocks’ age is too complex, so I’m not going to do it.

I’d … if …

2. I can’t meet you tomorrow. I have to install a new equipment in the laboratory.

If …

3. I don’t see you very often because I design a new installation.

If …

4. We can’t determine the plate current of a triode. We have to measure the temperature of the cathode, the voltage on the plate and the space charge.

If …

5. P-type and N-type regions and a junction between them appeared in a silicon crystal because donor atoms were at one end and acceptor atoms were at the other end of it.

If donor atoms …

6. I didn’t determine voltage because I didn’t know a strength of the current and resistance.

…

6. You didn’t replace parts of this machine – that’s why it doesn’t work now.

…

6. Kate didn’t obtain the correct result because she didn’t change a sign in a fraction.

…