Unit 5. English and world discovery

1. Match the words with photos 1-5. 2. Match the verbs in the box with the definitions. Then write the noun form of each verb. 3. Complete the questions with discovery and invention nouns. Then choose the correct answers.

1. Complete the table with the gerund or infinitive form of the verbs. 2. Complete the sentences with the gerund or infinitive form of the verbs. 3. Complete the product review with the gerund or infinitive form of the verbs in brackets.

1. Choose the odd word out. 2. Complete the article with the words. 3. Listen to a radio programme about a science lesson. When astronaut Tim Peake was on the International Space Station (ISS), he gave a science lesson to students on Earth. Predict the answers to 1-5. Then listen to check your ideas.

1. Choose the correct words. 2. Complete the zero conditional sentences with the correct form of the verbs in the box. 3. Complete the sentences with the first or second conditional form of the verbs in brackets.

1. Read and listen to the online article. What do you think these words mean? Choose the correct answers. 2. Read the article again. Write true, false or don't know if the article doesn't mention it.

1. Complete the phrases with the correct form of the verbs in brackets. Then match 1-4 with a-e. 2. Order the words to complete the sentences about factory farming.