HOMEWORK

Ex. 1 page 31

1. Chemistry
2. Archaeology
3. Ecology
4. Geology
5. Marine biology
6. Physics

Ex. 2 page 31

1. Photo C
2. Photo D

Ex. 4 page 31

1. Speaker 1: B
2. Speaker 2: F
3. Speaker 3: E
4. Speaker 4: D
5. Speaker 5: C

Ex. 5 page 31

1. Collect evidence
2. Make discoveries – find cures
3. Doing experiments
4. Spent hours
5. Doing research

Ex. 6 page 31

1. Archaeology – archaeologist
2. Biology – biologist
3. Chemistry – chemist
4. Ecology – ecologist
5. Geology – geologist
6. Mathematics – mathematician
7. Physics – physicist
8. Science – scientist

Ex. 3 page 34

1. He used to have five or six good friends.
2. He used to phone people from the phone in the sitting room.
3. His parents bought him a camera for his sixteenth birthday.

Ex. 1 page 34

1. People don’t drive Fiat 500 now – they drive a Ferrari.
2. People don’t use phone now – they use smartphones.
3. People don’t use typewriter now – they use computers.
4. People don’t take polaroid now – they take digital photos.

Ex. 2 page 34

1. T
2. T
3. F
4. T
5. F
6. T

Ex. 4 page 34

2. People didn’t use their cars much, but now they drive everywhere.
3. People update their online profiles now, but they used to write letters.
4. Children play inside now, but in the past, they used to play outside.
5. Teachers used to suggest books, but now they give out website addresses.
6. Families used to watch TV together, but now they watch it individually.
7. Students use Google now, but they used to look up things in encyclopedias.
8. Parents didn’t use to worry so much, but now they give children less freedom.

Ex. 5 page 34

When I was at primary school:

1. I used to take me to school every day.
2. I didn’t use to go online much.
3. –
4. –
5. –
6. I used to want to be an astronaut.