Unit 10 class 7: Sources of Energy – A Closer Look 1

1. Vocabulary

1.1. Task 1 Unit 10 grade 7

Put the words below into the table to describe the types of energy. (Put the words below in the table to describe the types of energy.)

Guide to answer

1.2. Task 2 Unit 10 grade 7

Compare your answers with a partner. (Compare the answers with your neighbor.)

Example:

A: I think biogas is renewable.

B: Me too. I also think it is abundant and cheap.

Translated:

A: I think gas can be recovered.

B: I think so too. I also think it’s plentiful and cheap.)

1.3. Task 3 Unit 10 grade 7

Look at the pictures and complete these sentences, using the words in 1.1. (Look at the pictures and complete these sentences, using the words in section 1.1)

Guide to answer

1. Solar; safe

2. non-renewable

3. Wind; clean

4. dangerous; expensive

Translated:

1. Solar energy is renewable. Moreover, this energy is clean and safe.

2. Coal use pollutes, and coal cannot be recovered.

3. Wind energy is abundant. And the wind is clean and safe too.

4. Renewable and clean nuclear energy. But this energy is dangerous and expensive.

2. Pronunciation

2.1. Task 4 Unit 10 grade 7

Listen and repeat. Which words are stressed on the first syllable and which ones are stressed on the second syllable? Put them in the appropriate columns. (Listen and repeat. Which word is stressed on the first syllable and the word stressed on the second? Put them in the appropriate columns)

Click to listen

Guide to answer

2.2. Task 5 Unit 10 grade 7

Read the following sentences and mark (‘) the stressed syllable in the underlined words. Then listen, check and repeat. (Read the following sentences and mark (‘) the underlined words. Then listen, check and repeat)

Click to listen

Guide to answer

1. a’nother, re’newable

2. con’venient, a’bundant

3. ‘limited, en’vironment’

4. ‘plentiful’, ‘easily

5. ex’pensive, ‘dangerous

Translated:

1. Coal will be replaced by a renewable source.

2. Wind energy is convenient and abundant.

3. Natural gas is limited and harmful to the environment.

4. Solar energy is abundant and can be replaced easily.

5. Nuclear power is expensive and dangerous.

3. Practice

Find the word which has a different stress pattern from the other.

Question 1: A. chemical B. footprint C. sustain D. necessary

Question 2: A. reduce B. battery C. hydrogen D. station

Question 3: A. adsorb B. efficient C. building D. pollute

Question 4: A. damage B. balance C. replace D. greenhouse

Question 5: A. generate B. landscape C. layer D. machine

Question 6: A. natural B. prevention C. habitat D. pressure

Question 7: A. scientist B. recycle C. survive D. resource

Question 8: A. solar B. violation C. temperature D. generator

Question 9: A. transportation B. conservation C. emission D. devastation

Question 10: A. useful B. alternate C. atmosphere D. communication

4. Conclusion

At the end of the lesson, you need to practice stressing sounds in three-syllable words, do all the exercises and memorize the words in the lesson:

• limited (adj): limited >< unlimited (adj): infinite
• renewable (adj): refreshable >< non-renewable (adj); non-renewable
• dangerous (adj): dangerous >< safe (adj); safe
• available (adj): available
• polluting (adj): polluting
• abundant (adj) = abundant (adj): enough, abundant
• exhaustible (adj): possibly exhausting
• harmful (adj): harmful