I. Quick check. 1. a) Which structure forms a waterproof layer on the surface of the leaf?

1. a) Which structure forms a waterproof layer on the surface of the leaf?

b) Why is this structure thicker than the upper surface of the leaf than on the lower surface?

2.What is the main function of palisade cells?

3. How does collenchyma differ from sclerenchyma?

II. Use monolingual English dictionary and write down what could the words given below mean:

waterproof, shade, pore, infection, waxy coating, guard cells, root.

III. Fill in the missing words:

IV. Find synonyms among the pool of words:

Pool of words	Synonyms
1)1.amount /2.flat /3.trap /4.quantity /5.even /6.catch
2)1.volume /2.fabric /3.reach /4.bulk /5.gain /6.tissue
3)1.escape /2.produce /3.disappear /4.manufacture
4)1.evolution /2.waterproof /3.impermiable /4.development

V. Give English equivalents to the following word combinations:

N	Russian term	English equivalent
1.	группа цветущих растений
2.	поглощение света и углекислого газа
3.	главная жилка листа
4.	плоская форма листа
5.	физические повреждения листа
6.	пара охранительных (сторожевых) клеток
7.	верхняя поверхность листа
8.	потеря воды
9.	наименее специализированные растительные клетки
10.	плотные зеленые клетки листа
11.	согласно количеству света
12.	наилучшая позиция улавливания света
13.	главный участок газообмена
14.	кончик листа
15.	неровно утолщенные клеточные стенки

VI. Match these words with definitions:

N	Word		Definition
1.	absorption	A	any of the very thin tubes that form the frame of a leaf
2.	stalk	B	the act of protecting s/b or s/th from attack, criticism etc.
3.	terrestrial	C	not allowing a liquid or gas to pass through
4.	cluster	D	the process of a liquid, gas or other substance being taken in
5.	defence	E	living on theland or on the ground rather than in water or in the air
6.	vein	F	a group of things of the same type that grow close together
7.	impermeable	G	thin stem that supports a leaf, flower or fruit and joins it to another part of the plant

VII. Give Russian equivalents to the following English terms:

N	English term	Russian equivalent
1.	absorption of light and carbon dioxide
2.	maintain the flat shape of the leaf
3.	secrete a waxy coating
4.	to gain easy access into the leaf
5.	bulk of a leaf
6.	intercellular air spaces
7.	cells are packed tightly together
8.	regular arrangements
9.	according to the amount of light available
10.	best position to trap light

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