VI. Speaking

a. Answer the questions.

1. When should you clarify all the unclear details about the procedure of any experiment?

2. Why is it so important to check safety equipment from time to time?

3. What kind of clothes should you wear to the lab?

4. Why do you have to keep your hair up in the lab?

5. What does basic protective gear include?

6. Why shouldn’t you keep food and drinks in the lab refrigerator?

7. Is there any rule how to sniff chemicals?

8. Why can’t you combine the chemicals at random?

b. Imagine you are asked to show your chemical laboratory to the first year students. Prepare a short presentation. Include the following information: the equipment, its functions and safety precautions.

VII. Grammar: will/going to

a. Complete the sentences below by putting the verb in brackets into the most suitable form of the future simple or be going to.

1. Why are you turning on the television? – I… (watch) the news.

2. I am afraid I can`t give you a lift tomorrow I … (repair) my car.

3. I doubt if we …(have) time to speak to you.

4. If she continues working like this, I am afraid she … (get) ill.

5. Why is he filling that bucket with water? – He … (wash) his car.

6. Don`t worry about the car! We… (call) a taxi.

7. I have got a headache. – Have you? Wait here and I … (bring) an aspirin for you.

8. I can give it back to him because we … (meet) at 3p.m. tomorrow.

b. Complete the sentences below by putting the verb in brackets into the most suitable form of the future continuous or future perfect.

1. By Friday I … (finish) this new book by Marquez.

2. It is strange that when we get to Sydney, we … (fly) half way around the world.

3. This time tomorrow, Maria … (sunbathe) on a beach on Majorca.

4. Can we meet tomorrow? – Not tomorrow. I … (work).

5. I …(be) in London for ten years by next June.

6. When I come back to Australia, I … (probably/have) a party because it is my birthday on January 5th.

7. This time next week, we… (buy) Christmas presents for our families and friends.

8. Phone me after 8 o`clock.. We… (finish) dinner by then.

c. Open the brackets and put the verbs into the correct future tense.

1. My grandmother is very old. She … (be) ninety next month.

2. This time next week, they … (lie) on a sandy beach.

3. The team … (leave) the office by 9 o`clock tomorrow.

4. By 10 o`clock, Sue … (drive) for twenty hours.

5. The film … (start) by the time they get to the cinema unless they take a taxi.

6. Tom thinks he …(get) a pay rise soon.

7. Julia …(find) the note I am leaving for her now.

8. Tomorrow I … (have) a party. I hope you …(come).

UNIT 4

Mendeleev and the periodic table of elements I. Lead-in Before reading the text discuss these questions with your partner.

1. Which chemical elements can you say in English? Name as many as you can.

2. Why do people call Mendeleev ``the greatest chemist of the world``?

3. Can you explain what the periodic table is used for?

4. What is the importance of the periodic system of the elements?