Language Practice

I. Change singular into plural and plural into singular.

1. This is a tire.

2. Those are pipes.

3. That is a wheel.

4. These are acute angles.

5. This is a straight line.

6. Those are matches.

II. A) Study this picture and learn the names of different tools.

b) Close the book and try to name as many tools as possible.

III. Make up sentences with the following expressions: a pair of, a set of, a box of, a packet of.

EXAMPLE: a) pliers

These are pliers.

This is a pair of pliers.

a) pliers	e) glasses	i) rulers	m) nails
b) pincers	f) spanners	j) tools	n) screws
c) scissors	g) screwdrivers	k) matches	o) nuts
d) goggles	h) chisels	l) drills	p) bolts

IV. Look at the chart below. Choose the right tool for each profession.

EXAMPLE: A screwdriver is for electricians.

Screwdrivers are for electricians.

pliers	is are	for	Electricians
spanner			Carpenters
screwdriver			Mechanics
chisel			Joiners
ruler
nails
screws
nuts
bolts

V. Find and correct mistakes in the following sentences.

1. – What is it?	3. This chisels are new.
– This is curves.	4. We are two-year students.
2. – Are these containers full of water?	5. These are a set of screwdrivers.
– Yes, them are.	6. Is this a pair of spanneres?

VI. Translate the following sentences.

1. Це квадрат.

2. Ті труби довгі.

3. – Що це? – Це шина. Вона вузька.

4. Це колеса. Вони великі.

5. Іншими словами, цей кут прямий.

6. Це лінія? – Вірно. Ця лінія пряма.

7. Це теж кут, Але він гострий.

8. Що це? – Це площини. Вони паралельні.

9. Це криві, чи не так?

10. Ці ємкості повні.

Reading and Speaking

I. Read the texts and answer the questions.

1.

Number 1 is an angle.

This is an angle.

It is acute.

In other words, this angle is acute.

1. What is this?

2. Is it an acute angle?

2.

Number 2 is also an angle.

That is also an angle.

But it is not acute.

It is right.

In other words that angle is a right angle.

1. What is that?

2. Is it also an acute angle?

3. It is a right angle, isn't it?

3.

Number 3 is an angle as well.

T hat is also an angle.

But it is neither acute nor right.

It is obtuse.

Thus that angle is an obtuse angle.

1. What is that?

2. Is it a right angle?

3. It is an obtuse angle, isn't it?

4.

All these are curves.

These are simple curves.

They are simple open and closed curves.

In other words, these curves are simple open and closed.

1. What are all these?

2. Are they simple curves?

3. These curves are simple open and closed, aren't they?

5.

T hose are planes.

Those are parallel planes.

They are parallel.

So those planes are parallel.

1. What are these?

2. Are they parallel planes?

3. Those planes are parallel, aren't they?