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TEXT 1. LARGE NUMBERS

Vocabulary

million миллион

figure цифра

nought ноль

Earth Земля

milliard миллиард

planet планета

Pluto Плутон

average среднее

1. A million is a thousand times a thousand. It has seven figures-one followed by six noughts. 2. The distance from the Earth to the planet Pluto is about 6 milliard kilometres. 3. The average distance from the Earth to the Moon is three hundred eighty-four thousand four hundred kilometres. 4. A milliard is a number written with ten figures. 5, The Earth is an average of 149 million five hundred thousand kilometres away from the Sun.

TEXT 2. A STRAIGHT LINE

Vocabulary

straight line прямая

to mark отметить '

point точка

to intersect пересекаться

to draw начертить

segment отрезок

locate расположить

equal равен

to one another между собой

twice the length of вдвое длиннее, чем

In the straight line ВС mark point A. The straight lines AB and CD intersect in point 0. Draw a segment the length of which equals 3.1 (three point one) cm. The segments AB, ВС and DE, located in one straight line, are equal to one another, but the segment CD is twice the length of the segment DE.

Fig. Geometrical figures

Выполните следующие действия?

Draw: a straight line, a curve, a circumference with a radius of 1 cm, a right angle, a triangle and a square.

Divide: a straight line into several segments.

Connect: any two points of the circumference with a chord.

Put some points: within a circle and on the surface of a sheet of paper outside the circle.

TEXT 3. ACUTE AND OBTUSE ANGLES