3 Part One. The Predicate

Section III
Ex. 1. Think of thesituations when the following expressions may be used: I 'd like to ...; what about yo u ; th e sam e to you Examples: 1. I'd like to go to the cinema today, and what about you? 2.1 wish you the best of everything.—The same to you.
Ex. 2. Translate the following into English. Let your fellowvstudents respond to your statements or questions. Use the expressions from exercise 1.

1. Men hali ham kelgusi hafta uchun jadvalni bilmayman, siz ham-mi?

2. Men bugun ishlashni xohlayman, ertaga uchrashamiz. 3. Ertaga dam olish kuni, sizga yaxshi dam olishni tilayman. 4. Men sutda kremniy borligini hech qachon bilmagan edim, siz ham-mi? 5. U ertaga imtihon topshirishni xohlaydi, 6. Petrov allaqachon barcha imtihonlarni topshirgan va sizchi? 7. Professor Nikolaevning ma'ruzalari juda qiziq, men ularning hammasini yozmoqchiman, lekin sekin yozaman. 8. Men nima uchun kvarts juda qattiq ekanligini tushunmoqchiman.

9. Barcha imtihonlarni yaxshi topshirishingizni tilayman.

Ex. 3. Make up sentences or short stories with the following words:1)

dioxide, nature, three, crystal, silicon, occur, different, form; 2) be, widespread, silicon, quartz, most, mineral; 3) quartz, structure, hardness, mineral, account for; 4) play, important, silicon, vital, role, animal, men, process; 5) be present, silicon, appreciable, food-staff, amount

Ex. 4. Give detailed answers to the following questions:1. In what form does

silicon occur in nature? 2. What is the structure of quartz; what are the properties of this mineral? 3. What is the structure of silicic acid; what are the properties of this acid? 4. In what living processes in animals or men does silicon take part?

Ex. 5. Discuss the following topics:

1. An Abundance of Silicon.

2. The Structure of Si02 Molecule.

3. Properties and Structure of Quartz, Cristobalitc and Tridymitc.

4. The Role of Silicon in Living Processes.

DO YOU KNOW THAT...

Although the compounds of silicon have been used for many centuries, the element was prepared only at the beginning of the 19th ccntuiy. At present, there are several methods of obtaining silicon. One of them is to heat silicon dioxide with magnesium:

SiO₂ + 2Mg = Si + 2MgO.

One way of preparing silicon commercially is by reducing SiO₂ with carbon in an electric furnace.