выполнить данные упражнения - Раскройте скобки, чтобы образовать условные предложения 0 и I типа
Ex1
1)If you … (not help) me, I … (not pass) the exam tomorrow. 2) We … (buy) this car if you …
(give) us a discount. 3 If my dad … (find) his tools, he … (be able) to repair my bike. 4 If David
… (not give up) smoking, Liza … (not marry) him. 5 Mary … (meet) her friends from Italy if she
… (come) to the party. 6 If you … (lend) me the money, I … (pay) you back next month. 7 They
… (not let) you into the cinema if you … (lose) your tickets. 8 If my sister … (travel) to Japan,
she … (buy) a kimono for me.
Ex.2
1 If they __ (not / eat) well, they __ (not / be) healthy.2. If __ (I / go) on a ferry, I always feel
sick.3. I __ (feel) very good the following day if I __ (have) enough sleep.4. If __ (I / not / know)
a word, I __ (look) it up in my pocket dictionary. 5 If you bring the temperature down, this water
__ (turn) into ice.6. She __ (like) to visit the museums if she __ (be) in a new country.7. Vasya
always __ (buy) expensive clothes if he __ (go) shopping.8. Tamara, our maths teacher, gets
angry if __ (we / not / work) hard enough.9. If you __ (press) this button here, the light __ (go)
on.

1 Don’t tell me you are too busy to give me a hand with the cooking. You have been playing  computer games for the last two hours.
 2 We are very proud of our son. He has broken the school high jump record again.
 3 I’m totally exhausted! I have been cleaning the house all day but I still haven't finished the bathroom.
  4 I’m afraid you won’t be able to leave for home earlier today, Ms Brown. It’s 5 o’clock and you have written only half of the proposal so far.
5 Diane Porter is a well-known applied linguist. Recently she has done research on the effects of students’ age on second language learning.
 
B 
 1 No one can accuse them/themselves of something that they haven’t done.
  2 If we try not to get angry with ourselves/each other so quickly, we will probably solve our problems more easily.
 3 I think George should look at him/himself critically and go on a diet to lose some weight.
4 My daughters are going to be vain. They are only six years old and already spend most of their time looking at themselves/each other in the mirror.
C
At the airport:
A Good evening. Could I see your passport , please?
 B Here you are.
A Is this all your luggage?
  B Yes, just this suitcase and this bag.
 A That’s OK. Here is your credit (landing) card. Go to gates number two.
B Thank you.

D  
0 passport control     
1 ticket  collector        
2 overhead locker
3 information desk
4 traffic  jams         
5 emergency exit
6 life  jacket             
E
     0 The underground is a railway system in which electric trains travel mainly below the ground.
 1 A ferry is a boat or ship for transporting passengers and vehicles across an area of water.
 2 We’ll be sitting in the second car/ carriage/ wagon from the front of the train.
  3 A pedestrian is a person who is walking in a street.
 4 If you don’t hurry up, we are going to miss our train.
  5 My parents are Green Peace activists and they are involved in the campaign against air and water pollution
6 Is this Marszalkowska Street or should I get off at the next stop? 

Today the word "electronics" is the general usage.
The center of this world is a tiny silicon plate of a few square millimeters, an integrated circuit, or a chip, as it is more commonly known. The integrated circuit is undoubtedly one of the most sophisticated inventions of man, science and technology. As the operation os an integrated circuit depends on microscopic "components", the purity of all materials and the cleanness at the plant they are produced at must be of the highest quality. 
In the past it took scientists and reserchers a whole lifetime to make a few thousand calculations, whereas for a modern computer this task is a matter of a few seconds. At present computers capable of performing billions of operations a second are required. In the next few years engineers will complete the work on computers of above 2 billion operations a second. It will take a few more years to produce a 10-billion operationscomputer. According to some researchers, we are close to what can be regarded as a true physical limit. But other specialists think that photons will make the operation a thousand times faster. This means that in the future it will be possible to expect the appearance of photon computers and that computations will be done by means of light. In a few decades a new age of light may replace the stil youthful electronic age. The race is going on.