8.3 Extending skills


passives in dependent clauses • essay plans


A Find the words in the blue box in the text in Lesson 8.2. 1 What part of speech is each word?


2 Think of another word which could be used in place of the word in the text. Use your dictionary if necessary.


B Study sentences A–D which relate to the text in Lesson 8.2. 1 Identify the dependent clause.


2 Copy the table under the sentences and write the parts of each dependent clause in the table.


3 Rewrite the sentence using an active construction. Example:


Here is a list of questions which systems designers have to consider.


C Read the essay plans and extracts on the opposite page. 1 Match each plan with an essay title in Lesson 8.2.


2 Which essay is each extract from? 3 Which part of the plan is each extract from?


D Work with a partner. 1 Write another paragraph for one of the plans.


A B C D


component reliability scale up key environment


transactions widespread


impact chillers appropriate initiative motherboard


Here is a list of questions which have to be considered by systems designers.


Google has designed innovative systems in which power consumption is reduced.


Energy costs are high when data centres are cooled by chillers.


Amazon uses thousands of servers which are provided by a number of different manufacturers.


Subject


(questions) which


Verb


have to be considered


2 Exchange paragraphs with another pair. Can they identify where it comes from? 8.4 Extending skills


suggested - virtualization - answer – all key questions – systems designers – ask – systems hardware


writing complex sentences • writing essay plans • writing essays


A Make complete sentences from these notes. Add words as necessary. A


B


virtualization – provide answer - many – not all – questions- ask – systems designers


D


addressing question – key task – determine – questions


virtualization answers – whether questions – doesn’t answer


E


virtualization - process – physical hardware components – clustered – combined – create – virtual machine


By whom/what


systems designers


C


ease – maintenance – ability – system – respond – change – among – questions – answered - virtualization


F


questions – virtualization not answer – concern specification – components – reliability – issues relating – energy consumption


B The sentences in Exercise A are topic sentences for paragraphs in essay B in Lesson 8.2. Put them in the best order for the essay. What is the main topic for each paragraph?


C Look at the essay question on the right. 1 What kind of essay is this?


2 Do some research and make a plan. 3 Write the essay. See Skills bank


66 Essay question


Yahoo aims to overtake Google in energy efficiency in its data centres. Describe the steps that Yahoo will need to take in order to make this happen.


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