Unit 4. Planet Earth

1. Complete the forum posts with the given words. 2. Choose the correct option. 3. Complete the extracts from travel guides with words from the box below. Make the nouns plural if necessary. There are two extra words.4. Find the word which DOES NOT collocate.

1. Read the text and choose the correct options. 2. Cross out “the” where it's not necessary. One sentence is correct. 3. Complete the telephone conversation with a / an, the or Ø.4. Find and correct the mistakes in the sentences.

1. Read the extract from an interview with a student about a project for an eco-school. Choose the correct options to complete the collocations in bold. Then listen and check. 2. Complete the sentences with collocations from Exercise 1. Change the verb forms if necessary.

1. Match the words (1-5) to the words (a–e).2. Choose the words in the box to fill in the blank. 3. Which paragraph has the following information? 4. Match the heading with the suitable paragraph. There are two headings that do not go with any paragraphs.

1. Complete the sentences with the words in the box and relative pronouns. There are two extra words. 2. Read the text and choose the correct options. 3. Write sentences with non-defining relative clauses. Use the correct form of be. 4. Rewrite the sentences using relative clauses for the information in brackets.

1. Fill in the blanks with suitable phrases in the box. 2. Match the verbs with the suitable prepositions.3. Fill in the blanks with the phrasal verbs from Exercise 2. 4. Order the words to make sentences.5. Make questions for the underlined part.

1. Read the essay below about animal testing. Label each paragraph.2. Underlining linkers in the essay in Exercise 1 and complete the table.3. Match some of the sentences in Exercise 1 with their correct functions.

1. Label the phrases D for discussing different options or C for choosing one of the options and justifying the choice. 2. Read the discussion task and then complete the conversation two students had about it. The first letter of each word is given.

1. Complete the words in the sentences. Some letters are given. 2. Match the sentence halves. Then complete the missing words. The last two letters of each word are given. 3. Complete the sentences with the correct form of the verbs in the box. There are two extra verbs.