Unit2Page 12

1 1 milk 2 sugar 3 supermarket 4 fresh5 healthy 6 fruit 7 vegetables 8 fast9 protein

2 1 renewable4 alternative

2 deforestation 3 global5 electricity 6 environmental

1 dining table 2 home-grown 3 tea bag4 junk food 5 seafood 6 kitchen knife7 beefburger 8 dishwasher

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1 1 True 2 False 3 True 4 False 5 False

2 1 1 - 2 times a week 2 easy 3 very good4 Yes, but it isn't always fresh. 5 Yes, but priceis a factor. The customer isn't sure they would payextra. 6 Yes

3 /e/ fresh, bread, eggs

/ae/ fat, gas, bag

/i:/ meat, cheese, bean

/ai/ pie, rice, fries

/ei/ wave, grain, grape

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1 1 many6 a little

2 little 3 much 4 enough 5 Afew7 enough 8 A lot of

2 1 has created 2 is won 3 has been4 have made 5 has taken 6 has been7 has decorated 8 has crossed

3 1 Have / been waiting 2 've / been reading3 has been serving 4 has / been working5 's been preparing 6 have been saying

4 1 've cleared 2 Have you ever been 3 Have youfinished 4 've been studying 5 's eaten6 's been coming 7 Have you been fighting8 have you been staying 9 haven't seen10 Have you heard

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l i a little 2 a few 3 a few 4 a few 5 a little

2 1 little 2 a few 3 a little 4 few 5 a few

3 1 has grown 2 have become 3 was 4 did5 received 6 produced 7 started 8 began9 has doubled 10 was

4 1 has been running 2 has been mending3 has been painting 4 has been snowing

5 1 have been cooking, have prepared2 has been, has lost 3 have been building,haven't finished 4 has been studying, has read

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1 1 the number of wind turbines at the school2 the amount (in dollars) the district has savedbecause of the little turbine 3 the year the windpower programme began 4 the amount (indollars) the district could save a year from bothturbines 5 the height of the turbines 6 thedepth into the ground 7 the strength of windthey must be strong enough to survive 8 theycan even produce energy ¡n winds of over tenkilometres per hour 9 the amount (¡n dollars) thatCharles Goodman thinks he'll make from his threewind turbines

2 1 D 2 A 3 B 4 D S C

3 A school in the town of Spirit Lake has built twowind turbines. It's a good location because theland is fíat and the wind blows across it a lot of thetime. The project has been successful because thedistrict has saved a lot of money and been able toemploy three new teachers. The turbines provideenough energy for the school and there's alsoextra energy which they sell to a power companv.However, the wind turbines at the school don'tonly make money. They are also useful as a real-lifemodel of the subjects the students are studying atschool.

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1 1 A large square of paper or plástic, a pencil,a long piece of wood and a pin. 2 Wind3 In the garden next to plants and flowers.

2 1 Good morning, everyone. Let's start.

6 The most important thing is the paper or, if youwant to put it outside, you'll need plástic.

11 The last stage ¡s to put the pin through themiddle and fix the wheel to the wood.

3 ... how to make a pinwheel. They are fun foryoung children,

5 They are also quite easy to make.

13 So, did everyone follow that?

10 Then, bend each of the cut corners to themiddle of the square.

12 And now it's ready to test in the wind.

2 Today l'm going to explain ...

7 It needs to be a large square.

4 but they also look nice in your garden next toplants and flowers.

8 Another thing you'll need is a pencil. Draw twodiagonal lines from córner to córner. You will alsoneed a long piece of wood and a pin.

9 First of all, cut along the diagonal lines.

14 Are there any questions?

4 1 What's the 2 I see 3 It's a kind of 4 Youserve it 5 Are you sure 6 Why don't we7 Does it taste 8 It tastes

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