Lesson 2. Grammar: the Present Indefinite Tense

Grammar: the Present Indefinite Tense

Where to find rocks?

Mostly, rocks are well hidden. We don't see them because they are either covered with earth orwe've built roads and houses all over them. However if you dig deep enough they are there, because the earth's crust is made up of rock.

In some places rocks rise out of the earth to form spectacular mountains, some of which are over 5 miles high. In other places rocks form smaller outcrops pushing through the earth above.

In many parts of the country rock is quarried for building material. Some of these quarries are huge and very deep rocks are exposed.

Where do rocks come from?

Most rocks are formed over hundreds of thousands of years by several different processes some of which involve enormous forces. We'll read more of this later in this book.

Remember the words:

to be made up =to consist of – складатися з … to find (found, found) –знаходити the Earth – Земля to hide (hid, hidden) – ховати(ся) the earth’s crust – земнакора to cover – покривати, вкривати several – декілька to dig (dug, dug) – копати, рити enormous – величезний

Answer the questions:

1. What do we mean, saying that the rocks are well hidden?

2. Why don’t we see the rocks?

3. What should we do to find rocks?

4. How long does it take a rock to form?

5. What is the earth’s crust made up of?

6. What do rocks form rising out of the earth?

7. Where are building materials taken?

Exercise 1. Put in the missing words:

1. We don’t see rocks because they are … with earth.

2. If you … deep enough you’ll see rocks.

3. The … … is made up of rock.

4. Rocks can form … … rising out of the earth.

5. The place where we can see rocks on the surface is called an ….

6. Rocks are … for building materials.

7. In huge quarries very deep rocks are ….

Exercise 2. Put questions beginning with the words in brackets:

1. Rocks hide in the earth. (Where…?)

2. We don’t see rocks. (Why…?)

3. Earth covers the rocks. (What…?)

4. We build roads and houses. (What…?)

5. The earth’s crust consists of rock. (What…of?)

6. Rocks form spectacular mountains. (Where…?)

7. Rocks are quarried for building materials. (What…for?)