Unit 5. Global warming

1. Read the sentences and underline the stressed words. Then practise saying them with a natural rhythm.

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1. Complete the sentences using the correct forms of the words in the box. 2. Choose the correct word or phrase to complete each sentence. 3. Choose the best answers to complete the sentences.

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1. Choose the correct forms of the verbs to complete the sentences. 2. Rewrite the sentences using present or past participle clauses. 3. There is a mistake in each sentence. Find the mistake and correct it.

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1. Read the text. Match the headings (A-F) below with the paragraphs (1-4). There are TWO extra headings. 2. Read the text and choose the best answers.

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1. Complete the conversations by circling the best answers. Then practise reading them. 2. Talk about why we should use renewable energy. Use the suggested ideas in the box to help you. You can start your talk with the sentence below.

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1 Rewrite the sentences without changing their meanings. 2. Use the words and phrases below, and add some words where necessary to make meaningful sentences. You may need to change the forms of some verbs. 3. Look at the incomplete leaflet. Write two paragraphs of 60-75 words each to complete it. Use the suggested ideas in 1 and 2 to help you.

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