22 What symptoms do you have when you have these illnesses?

●an allergy ●a cold ●flu ●food poisoning

23 Match each of these illnesses with one of the four sets of symptoms here.

1 You've got a temperature and a headache. Your stomach hurts and you're being sick.

2 You're sneezing. Your eyes are itching and watery. You've got a rash.

3 You're sneezing. You've got a sore throat, a runny nose and a cough.

4 You've got a temperature and a headache. You feel cold, but you're sweating. Your back, arms and legs are aching.

24 For questions 1-15, read the text below about the brain and think of the word which best fits each space. Use only one word in each space.

Contrary to popular belief, it is not true (0) that we use only 10 percent of our brain power; it is (1)..... of the myths of modern times. The brain controls all of our bodily functions as (2)..... as carrying out the most complicated processes (3)..... thought and imagination.

There must (4)..... be some spare capacity built into the system because brain cells – unlike most of the body's other cells - are not (5)...... to divide and therefore are incapable (6)..... replacing themselves (7)...... they die.

It is possible to increase the abilities of our brain. We do (8)..... when we learn to read, (9)..... example. Current research shows that the learning process creates new connections (10)..... brain cells (11)...... increases our mental powers.

But scientists are unable to say exactly how (12)....... of our brains we don't use. Despite a lot of research, the brain is still the (13)....... mysterious organ in the body and it will be many years (14).... enough information can be gathered to explain all (15)...... functions.

Time clauses

● Time clauses are introduced with: after, as, as long as, as soon as, just as, since, before, by the time, when, while, until/till, the moment (that), whenever etc. As soon as he (had) finished studying / he turned on the TV. (Time clause) (Main clause) ● Time clauses follow the rule of the sequence of tenses. This means that when the verb of the main sentence is in a present or future form, the verb of the time clause is in a present form. When the verb of the main sentence is in a past form, the verb of the time clause is in a past form too. She'll come when she is ready, (not: when she will be ready) You can wait here until she comes. (not: until she will come) She did the cleaning after she had done the washing- up. (not: after she does) ● We never use will/would (future forms) in time clauses; we normally use a present form. He'll go out after he has finished his job. (not: after he will finish or will have finished) He'll be a lawyer when he grows up. (not: when he will grow up) Note: when (time conjunction) + present I'll take you out to dinner when I get paid. when (question word) + future or present Do you know when she will arrive/ is arriving?