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CLIL Biology

Disease and medicine
25
1 Work in pairs. Circle the correct answers. Then listen and check.
CD2
Quiz

1 What causes diseases? a dirt b bacteria c cold weather d pain
2 How are infectious diseases, such as colds, usually spread?
a eating contaminated food b hand-to-face contact c breathing viruses in the air
d drinking infected water
3 How can we help to prevent disease?
a wash our hands b stay in bed c don’t drink from the same glass as other people
d have a bath every day
4 Which of these will help keep your immune system strong?
a exercise b lots of sleep c a proper diet d a, b and c

2 Read the text and answer the questions.

Microbes live all around you, on you and inside you. Viruses are the smallest type of microbe. Diseases
They are not visible. Some microbes make you ill, but caused by viruses usually spread easily from one
most of them keep you healthy and help you to fight person to another.
disease. Microbes are divided into four main groups –
bacteria, viruses, fungi (or mould) and parasites. Fungi and mould are types of micro-organisms
that sometimes grow on decaying food. They
Bacteria are really important microbes – life on earth sometimes make you ill if you eat them.
couldn’t exist without them! Bacteria have only one
cell, shaped like a sphere, rod or spiral. A single one, Parasites are plants or animals that live on or
called a bacterium, is very, very small. Most bacteria inside a host. They need another living thing to live
aren’t harmful to you. In fact, they keep you healthy. and grow and they get all their food from the host.
But if you eat food that is not cooked properly, the Parasites usually aren’t very good for their host and
bacteria may survive and make you feel very ill. can make you very sick.

1 What is a microbe? 4 Where can you find fungi or mould?
2 How can bacteria make you ill? 5 What does a parasite live on?
3 What does a virus cause?

WEBQUEST

Find:
How are these diseases transmitted?
How can they be prevented?
Disease Method of transmission How can it be prevented?
Infuenza [flu] contact with people
Cholera dirty water
Salmonella
Malaria
Tetanus

102 UNIT 10 ❯ Go to www.cambridge.org/elt/more for extra CLIL