IV. Speaking

1. Work with a partner. Here are his answers. Ask him questions. Then, switch the roles.

—?

— Plants are constantly metabolising, both breaking down preformed molecules and building new ones at the same time.

—?

— Besides their own essential principles, the so-called primary plant products, plants produce other principles, which apparently do not have any definite biological function.

—?

— The biological function of secondary products is often discussed but the fact is that many of them have a special importance out­side the plant because of their pharmacological action.

—?

— Plants that give drugs have both active and inactive substances.

—?

— The inactive substances include cellular structures and pharmaco­logical inactive compounds.

2. In pairs, act out a dialogue. Then switch the roles.

Student A: What is phytopharmacy?

Student B: Phytopharmacy is the study of plants.

A: Are drugs isolated from plants?

B: Yes, they are.

A: Why are medicinal plants important?

B: They are important for many reasons: they provide us with natural drugs, active constituents and intermediates for semi-synthetic drugs.

A: What does the nature produce?

B: The nature produces an astonishing variety of complex phytoconstituents which embrace all fields of pharmacological action.

3. Give as much information as you can about:

— phytopharmacy foundation;

— phytopharmacy'importance;

— plants living under a variety of conditions;

— pharmacological action;

— metabolism and its role.

VII тема: Хімія.

VII. тема: Хімія.

24. Chemistry. The subject and its study. Sections of chemistry.
Хімія. Предмет і її вивчення. Розділи хімії.

I. Active vocabulary

property – властивість;

alteration – зміна;

identity – ідентичність;

quantity – кількість;

equilibrium – рівновага;

reaction rate - теми реакції;

solid - тверда речовина;

fluorescencc – світіння;

artificially – штучно;

destruction – руйнування.

II. Chemical compounds

III. Lead in. Work with the text.

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