If you are studying as part of a class, your teacher will direct you on how to use each activity. Some activities can be treated as discussions, in which case they can be a useful opportunity to share ideas and techniques with other learners. | unit 2 The importance of the past a Practice Test 2 Task 1 You should spend about 20 minutes on this task. The graph below shows the contribution of three sectors - agriculture manufacturing and business and financial services - to the UK economy in the twentieth century. Summarize the information by selecting and reporting the main features and make comparisons where relevant. Write at least 150 words. Task 2 You should spend about 40 minutes on this task. Write about the following topic To some people studying the past has little value in the modern world. Why do you think it is important to do so What will be the effect if children are not taught history Give reasons for your answer and include any relevant examples from your own knowledge or experience. Write at least 250 words. 21 UNIT B Si When describing processes show that you can use active and passive forms where appropriate. I 3i I Machines cycles and processes Task 1 The passive Look at the five objects a-e and answer the questions. a Which materials are used to make these objects b Which of the materials in your list are natural and which are manufactured 2 Natural processes are often described using the active form whereas manufacturing processes are usually described using the passive. Read the examples. Then complete 1-6 with the correct forms of the verbs in brackets. Examples A river flows from its source to the ocean active Many electronic goods are manufactured in Japan passive be past participle Limestone is the main ingredient of cement. Firstly it 1. extract from the ground. Then at the factory it2. heat to a high temperature with other ingredients. After this it 3. cool with blasts of cold air. When warm air 4. reach high ground it is forced to rise and as a result it5. cool . Moisture in the air 6. condense to form rain. 3 When describing processes make sure the subject and verb agree. Read the example then complete 1-8 with the correct forms of the verbs in brackets. Example The sun shines
