Put the verbs in brackets into the correct form.
Date: 2015-10-07; view: 491.
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.
…
7. You didn't replace parts of this machine – that's why it doesn't work now.
…
8. Kate didn't obtain the correct result because she didn't change a sign in a fraction.
…
4. Write sentences beginning I wish…
1. I don't have a notebook (and I need it).
I wish …
2. I have to install a new computer tomorrow (but I'd like to stay at home).
I wish …
3. I can't obtain perfect results in physics (and I'd like to).
I wish …
4. There was a job of specialist in the sphere of computer security advertised in the newspaper. I decided not to apply for it. Now I think I was wrong.
I wish …
5. When I was younger, I never learned to program in C++. Now I regret this.
I wish…
6. I've bought a lot of parts to my computer and now I'm short of money.
I wish…
5. Write your own sentences beginning I wish…
1. (somewhere you'd like to be now – in computer laboratory, at the university, in a trip etc.)
I wish I …
2. (something you'd like to have – iPad, PSP, iPhone etc.)
I wish I …
3. (something you'd like to be able to do – to fix a computer, to drive a car, to program in C++ and Java easily etc.)
I wish I …
4. (something you'd like to be – a scientist, a software maker, a system administrator etc.)
I wish I …
6. Put in wish(ed) or hope(d).
1. I … you a good luck at your entrance exams.
2. Enjoy your new creative work. I … you have a great time.
3. Good bye. I'm going on business. I … you all the best.
4. I heard you designed a new device, I … all your dreams come true.
5. I … you luck in buying a new computer. I … it works well for you.
7. What do you say in these situations? Write sentences with I wish … would …
1. You are on business now. You want to fly back home as soon as possible, but there is a delay of trips because of the weather.
You say: I wish it would …
2. You are waiting for results of the experiment. You're getting impatient.
You say to yourself: I wish …
3. You're looking through a lot of advertisements in order to find a job. Employers won't take you.
You say: I wish somebody …
4. You can hear a perforator working. It's been working for a long time and you're trying to study.
You say: ….
For the following situations, write sentences with I wish … wouldn't …
5. You have been doing a monotonous work at your job for years. You think you are worthy of a better fate.
You say to yourself: I wish I …
6. You friend does everything very slowly. You don't like this.
You say to your friend: I wish you …
7. Jack gives his password to all unknown people. This annoys you.
You say to Jack: …
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