5. They need a lot of / exercise /food / …… /attention.
6. You can feed them tinned food / leftovers /…… /mice.
7. You have to clean them /……/ the cage regularly.
8. They grow big / to about a metre / to an enormous ……
9. They often scratch /jump on /……you.
10. They can make an awful noise /…….
5.25. Work in pairs. Which animal do you think makes the best pet? Choose one of the alternatives, compare and contrast. Use as much of the language from activity 5.24 as you can.
1. Cat or Dog?
2. Snake or Hamster?
5.26. Read the dialogue and decide if the statements below are true or false. Then explain the meaning of the words and phrases in bold.
1. Al is going to keep the puppies.
2. Suzie prefers cats to dogs.
3. Suzie’s previous pet died.
4. The snake is not dangerous.
5. Al wants to have his picture taken with the snake.
S=Suzie, A = Al
S: Oh wow! They’re so cute!
A: I know. They are great! They’re only three weeks old.
S: What breed are they?
A: Siberian Huskies.
S: Really? So what are you going to do with them?
A: Well, I wish I could keep them, but it’s too much. The grow so big. I guess we’ll sell them or give them away. Do you want one?
S: Er … no! I’m actually more of a cat person.
A: Really? And I can’t stand cats!
A: I just find them annoying. They’re only interested in people when they are hungry. You know what I mean? Most of the time, they’re out of the house. They only come back when they want to be fed.
S: Oh, come on! They’re not so bad. They like to be stroked! And people like to stroke them. And cats are so independent. Don’t get me wrong – I do like dogs, but they are so demanding! They always expect you to play with them or take them to walks. And they are always jumping on top of you and licking you! I could do without it.
A: So, have you got a cat, then?
S: No, we had one when I was younger. In fact, my parents still have him, but it’s not fair to have a cat in my flat. Cats need some freedom. And the litter tray is so smelly!
A: I can imagine. So you don’t have any pets?
S: Well, actually I have a snake.
A: A snake! You’re joking! I’m terrified of snakes.
S: My snake isn’t poisonous.
A: How big is it?
S: About a metre.
A: That’s big enough. Do you ever take it out?
S: Yeah, of course! I’ve taken it to the university to show people. People like to have their photo taken with a snake around their neck.
A: Not me!
S: It’s fun!
A: Forget it.
5.27. Work in pairs. What reason do Al and Suzie give for NOT having a cat / a dog / a snake? Do you agree with their reasons?
5.28. Put the words in the correct order to make questions about pets.
1. poisonous / is / it
2. it / breed / what / is
3. it / do / where / keep / you
4. I / him / stroke / can
5. it /if /is / pick him up / I /OK
6. it / long / you / have /had / how
7. you / do / it / what / feed
5.29. Work in pairs. Describe a pet you have. Show a picture if you have one. Then talk about your pet using the questions from activity 5.28.
5.30. Work in pairs. Discuss these questions.
● Have you heard any stories about animals escaping from anywhere?
● Would you ever save or kill an animal? In what situation?
● Do you like the idea of going trekking through the jungle? Why? / Why not?
UNIT 6 BIODIVERSITY
Encyclopedia Britannica defines biodiversity as the variety of life found in a place on Earth or, often, the total variety of life on Earth. A common measure of this variety, called species richness, is the count of species in an area. Columbia and Kenya, for example, each have more than 1,000 breeding species of birds, whereas the forests of Great Britain and of eastern North America are home to fewer than 200. A coral reef off northern Australia may have 500 species of fish, while the rocky shoreline of Japan may be home to only 100 species. Such numbers capture some of the differences between places; the tropics, for example, have more biodiversity than temperate regions. Furthermore, biodiversity encompasses the genetic variety within each species and the variety of ecosystems that species create. So, the term biodiversity is commonly used to describe the numbers, variety and variability of living organisms at the species level. Actually it is synonym of “Life on Earth”. It is estimated that there are about 50 million species of plants, animals and microorganisms.
6.1. Match the words with their definitions.
1. diversity, n
a) a word used for describing something
2. count, n
b) the amount of something
3. capture, v
4. temperate, adj.
d) to make something new
5. encompass, v
e) to show
6. create, v
f) the fact that very different things exist within a group or place
7. commonly, adv.
g) never extremely hot or cold
8. estimate, v
h) to include
9. term, n
i) to determine amount of
10. actually, adv.
6.2. Fill in the words in bold from the Introduction.
1. Theó word ... is a contraction of the term “natural biological diversity”.
2. Species diversity is the … of species in a given area.
3. Communities of plants and animals interlink together as an … .
4. The first level of biodiversity is … diversity.
5. Biology is a natural science concerned with the study of life and … ... .
6. … occur everywhere on the planet.
7. Captive breeding programmes play an important role in the conservation of … … .
8. The variety of living species in different geographical areas means …. ... .
6.3. Read the text Losses of Biodiversity and do the exercises after it.