Двойные формы

older the оldest (о возрасте) He is 2 years older than I am.

old

elder the eldest (только в семье) He is the eldest son in the family.

farther The farthest (о расстоянии)

Far

further The furthest (о времени)

Исключения из правил

good – better – the best well – better – best bad – worse – the worst badly – worse – worst many – more – the most much – more – most little – less – the least little – less - least

Хороший – лучший – наилучший Хорошо – лучше – лучше всего Плохой - хуже – наихудший Плохо – хуже – хуже всего Многие – больше – наибольший Много – больше – больше всего Маленький – меньший – наименьший Мало – меньше – меньше всего

Laboratory work 2

Ex. I. Listen and repeat the following words and word-groups

whether; solid; liquid; gas; molecules; the smallest bit; any further; a miniature solar system; a central part or nucleus; the simplest of atoms; the hydrogen atom; a particle of positive electricity; at a great distance from it; the size of the particle involved; an opposite sign;

however the mass of the hydrogen atom; practically; larger than that; a diameter; heavier than the electron; a compact particle; a microscope; is not good enough to reveal them; the smallest wavelength of visible light; to vary in size; depending upon the number and size; the hydrogen molecule diameter; around the nucleus; 30.naturally.

Ex. III. Answer the following questions:

1. What does all matter consist of? What is heavier: the proton or the electron?

2. What does the size of molecules depend on?

3. Which atom is the simplest and the smallest one?

4. An electron is heavier than the proton, isn't it?

Ex. IV. Give the degrees of comparison of the following adjectives;

1. light; 4. complex; 7. good; 10. far;

2. small; 5. important; 8. many 11. compact;

3. heavy; 6. powerful; 9. simple; 12. common.

Ex. V. Repeat the following sentences after the speaker and translate them into Russian:

1. Atoms are smaller than molecules.

2. The nucleus of the simplest of atoms, the hydrogen atom, consists of a positively charged particle.

3. The proton is heavier than the electron.

4. The uranium atom is the most complex and the largest one.

Ex.VI. Give Russian equivalents to the following sentences:

1. The amount of electricity of the proton is as large as that of the electron.

2. The hydrogen atom proton mass is greater than that of the electron.

3. The hydrogen atom is the simplest and naturally the smallest one

Ex.VII. Repeat the following noun-groups after the speaker and translate them into Russian.

the proton mass; the molecule diameter;

the motion speed; the atom size;

the hydrogen atom; the hydrogen atom proton mass

Ex. VIII. Say if you agree to the following statements or not using correspondingly: you are right — верно; you are not quite right — неверно.

1. The uranium atom is the most complex one and naturally the smallest.

2. The heavier is the molecule, the slower is its speed.

3. The mass of the atom is defined by the electron mass.

4. The central part of the atom is the proton.

5. The size of the molecule depends upon the number and size of all die atoms composing it.

IX. Translate into English:

1. Все вещества состоят из молекул. 2. Атомы, протоны и электроны очень маленькие?

2. Молекулы находятся в постоянном движении. 4. Атом водорода не тяжелее атома урана.