Review: Units 6–10
C 135
Listen. Number the last word or phrase in
each sentence. 1. Mining is an extraction …
coal. copper. dangerous. died. electricity. gases. ground.
1
industry. much safer. over 3,500 deaths.
Speaking
A You are in a meeting. Think of a suitable reply for each question or suggestion.
1. First, let’s discuss ways to improve the safety of the product.
2. Shall I do some research into energy sources? 3. OK. I’ll do some research and give you the results next week.
4. How about increasing the pressure? 5. What about you? What do you think? 6. Has anyone got any other ideas?
B Complete each sentence with a verb, a modal or an auxiliary from the box.
see
1. What does represent?
2. Figure 1
3. As you can quite slow.
4. I
5. Sorry? What 6. 7.
could did do does don’t shows think would the purple line on this graph progress on the new pipework for the last three months. , the progress is
understand this email. you say?
you repeat that please? you like to work in the
energy industry?
8. I worked for a power company last summer and, let me
two years ago. 152 , a generating station
Reading Read a paragraph from an engineering journal.
• Circle the verbs and write Pr (Present), Pa (Past) or F (Future) above each one.
• Underline the subject of each sentence.
• If the subject is a pronoun, join the pronoun to the noun it refers to (if possible).
• If the subject is missing, write it above the verb. Pr
After an accident, engineers try to find the cause. Sometimes, the cause of the accident looks clear, but perhaps the truth is different. For example, in January 1986, the space shuttle Challenger exploded over Florida in the south-east of the United States. It crashed into the sea and the seven members of the crew died. According to the accident report, the shuttle blew up because a tiny component failed. In this article, we are going to look more closely at this cause and discover the true problem.
Writing
Rewrite each sentence. Add the extra information in the correct place. 1. The faulty component was not new to the shuttle.
1. The component was not new.
2. It worked on many launches.
3. It was safe at normal temperatures.
4. On the day, the temperature was low.
5. The component was not safe.
6. The information did not get through to the managers.
7. The cause of the accident was failure.
faulty / to the shuttle well / previous
in fact / completely / in Florida / in January
however / of the launch / at the launch site / very
engineers knew that / at very low temperatures
but / important / launch
true / shuttle / communication / not component failure
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