5 Read the text quickly. Does it describe the production stages for metal, plastic or paper? Iron and steel
We don't often use materials in their raw state. We change the raw materials to make the things we
use every day. The plastic in our water bottles and mobile phones comes from oil. The paper in books
comes from trees, and the metal we use comes from a rock called an ore.
How do we get the metal for the girl's bike? We find iron in a rock called iron ore. We put the iron ore
in a very big oven called a blast furnace. When the furnace is very hot, the metal in the ore changes
into a liquid and comes out of the rock. The melted iron then goes into a different oven called a steel
furnace. In this oven we make a metal called steel. It is stronger than iron. Next we put the liquid steel
into a mould. A mould gives the steel a shape. For the bike we need a mould that makes tube shapes
When it is cold, we have the frame for the bike. This is the finished product.​

А an  the zero article

C.

1. Fill in the gaps using *a", an", "the" or "X (for the zero article).

a. Are you going to the beach this afternoon?

b. Susan is eating an apple. The apple is red.

c. Elephants are very big animals.

d. I am at home now.

e. Mary is a nice girl.

f. My father is a policeman.

g. That is an Interesting book.

h. I'm going to bed.

1. My mum has a headache.

j. This is the most interesting book I've ever read.

k Today is the third day of our holidays.

| What time is it? It's (a) quarter past ten.

m. He came home.

n Where is the Nile? It's in Africa.

0. My cousin is from New York.

p. My aunt is staying at a hotel in Paris.

q. My aunt is staying at the Hilton hotel in Paris.

r. This ship sank in the Atlantic Ocean an hour ago​.

s. Rabbits are faster than tortoises.

a) You have to wear a jacket. → You don't have to wear a jacket.

d) They don't have to wear a uniform. - They have to wear a uniform.

c) Aijan has to iron the clothes. - Aijan doesn't have to iron the clothes.

a) We don't have to take the bus to school. - We have to take the bus to school.  

e) Sanjar has to feed farm animals. - Sanjar doesn't have to feed farm animals.

f) I don't have to mop the floor. - I have to mop the floor.  

g) Aliya and Feruza have to clean the windows.​ - Aliya and Feruza don't have to clean the windows.​