Reading Test

PART 1 Smart Energy

The next few decades will see great changes in the way energy is supplied and used. In some major oil producing nations, 'peak oil' has already been reached, and there are increasing fears of global warming. Consequently, many countries are focusing on the switch to a low carbon economy. This transition will lead to major changes in the supply and use of electricity.
[A] Firstly, there will be an increase in overall demand, as consumers switch from oil and gas to electricity to power their homes and vehicles.
[B] Secondly, there will be an increase in power generation, not only in terms of how much is generated, but also how it is generated, as there is growing electricity generation from renewable sources.
[C] To meet these challenges, countries are investing in Smart Grid technology. [D] This system aims to provide the electricity industry with a better understanding of power generation and demand, and to use this information to create a more efficient power network.

Smart Grid technology basically involves the application of a computer system to the electricity network. The computer system can be used to collect information about supply and demand and improve engineer's ability to manage the system. With better information about electricity demand, the network will be able to increase the amount of electricity delivered per unit generated, leading to potential reductions in fuel needs and carbon emissions. Moreover, the computer system will assist in reducing operational and maintenance costs.

Smart Grid technology offers benefits to the consumer too. They will be able to collect real-time information on their energy use for each appliance. Varying tariffs throughout the day will give customers the incentive to use appliances at times when supply greatly exceeds demand, leading to great reductions in bills. For example, they may use their washing machines at night. Smart meters can also be connected to the internet or telephone system, allowing customers to switch appliances on or off remotely. Furthermore, if houses are fitted with the apparatus to generate their own power, appliances can be set to run directly from the on-site power source, and any excess can be sold to the grid.

With these changes comes a range of challenges. The first involves managing the supply and demand. Sources of renewable energy, such as wind, wave and solar, are notoriously unpredictable, and nuclear power, which is also set to increase as nations switch to alternative energy sources, is inflexible. With oil and gas, it is relatively simple to increase the supply of energy to match the increasing demand during peak times of the day or year. With alternative sources, this is far more difficult, and may lead to blackouts or system collapse. Potential solutions include investigating new and efficient ways to store energy and encouraging consumers to use electricity at off-peak times.

A second problem is the fact that many renewable power generation sources are located in remote areas, such as windy uplands and coastal regions, where there is currently a lack of electrical infrastructure. New infrastructures therefore must be built. Thankfully, with improved smart technology, this can be done more efficiently by reducing the reinforcement or construction costs.

Although Smart Technology is still in its infancy, pilot schemes to promote and test it are already underway. Consumers are currently testing the new smart meters which can be used in their homes to manage electricity use. There are also a number of demonstrations being planned to show how the smart technology could practically work, and trials are in place to test the new electrical infrastructure. It is likely that technology will be added in 'layers', starting with 'quick win' methods which will provide initial carbon savings, to be followed by more advanced systems at a later date. Cities are prime candidates for investment into smart energy, due to the high population density and high energy use. It is here where Smart Technology is likely to be promoted first, utilising a range of sustainable power sources, transport solutions and an infrastructure for charging electrically powered vehicles. The infrastructure is already changing fast. By the year 2050, changes in the energy supply will have transformed our homes, our roads and our behaviour.

1 According to paragraph 1, what has happened in some oil producing countries?

A They are unwilling to sell their oil any more.
B They are not producing as much oil as they used to.
C The supply of oil is unpredictable.
D Global warming is more sever here than in other countries.

2 Where in paragraph 1 can the following sentence be placed?
There is also likely more electricity generation centres, as households and communities take up the opportunity to install photovoltaic cells and small scale wind turbines.

A
B
C
D

3 Which of the following is NOT a benefit of Smart Grid technology to consumers?

A It can reduce their electricity bills.
B It can tell them how much energy each appliance is using.
C It can allow them to turn appliances on and off when they are not at home.
D It can reduce the amount of energy needed to power appliances.

4 According to paragraph 4, what is the problem with using renewable sources of power?

A They do not provide much energy.
B They often cause system failure and blackouts.
C They do not supply a continuous flow of energy.
D They can't be used at off-peak times.

5 In paragraph 5, what can be inferred about cities in the future?

A More people will be living in cities in the future than nowadays.
B People in cities will be using cars and buses powered by electricity.
C All buildings will generate their own electricity.
D Smart Grid technology will only be available in cities.

6 The word 'remote' in paragraph 5 could be best replace by:

A isolated
B crowded
C attractive
D alone


PART 2:Risk-Taking and the Monkey Economy

Humans are uniquely smart among all the other species on the planet. We are capable of outstanding feats of technology and engineering. Then why are we so prone to making mistakes? And why do we tend to make the same ones time and time again? When Primate Psychologist Laurie Santos from the Comparative Cognition Lab at Yale University posed this question to her team, they were thinking in particular of the errors of judgement which led to the recent collapse of the financial markets. Santos came to two possible answers to this question. Either humans have designed environments which are too complex for us to fully understand, or we are biologically prone to making bad decisions.

In order to test these theories, the team selected a group of Brown Capuchin monkeys. Monkeys were selected for the test because, as distant relatives of humans, they are intelligent and have the capacity to learn. However, they are not influenced by any of the technological or cultural environments which affect human decision-making. The team wanted to test whether the capuchin monkeys, when put into similar situations as humans, would make the same mistakes.

[A] Of particular interest to the scientists was whether monkeys would make the same mistakes when making financial decisions. [B] In order to find out, they had to introduce the monkeys to money. [C] The monkeys soon cottoned on, and as well as learning simple exchange techniques, were soon able to distinguish 'bargains' – If one team-member offered two grapes in exchange for a metal disc and another team-member offered one grape, the monkeys chose the two-grape option. [D] Interestingly, when the data about the monkey's purchasing strategies was compared with economist's data on human behaviour, there was a perfect match.

So, after establishing that the monkey market was operating effectively, the team decided to introduce some problems which humans generally get wrong. One of these issues is risk-taking. Imagine that someone gave you $1000. In addition to this $1000, you can receive either A) an additional $500 or B) someone tosses a coin and if it lands 'heads' you receive an additional $1000, but if it lands 'tails' you receive no more money. Of these options, most people tend to choose option A. They prefer guaranteed earnings, rather than running the risk of receiving nothing. Now imagine a second situation in which you are given $2000. Now, you can choose to either A) lose $500, leaving you with a total of $1500, or B) toss a coin; if it lands 'heads' you lose nothing, but if it lands 'tails' you lose $1000, leaving you with only $1000. Interestingly, when we stand to lose money, we tend to choose the more risky choice, option B. And as we know from the experience of financial investors and gamblers, it is unwise to take risks when we are on a losing streak.

So would the monkeys make the same basic error of judgement? The team put them to the test by giving them similar options. In the first test, monkeys had the option of exchanging their disc for one grape and receiving one bonus grape, or exchanging the grape for one grape and sometimes receiving two bonus grapes and sometimes receiving no bonus. It turned out that monkeys, like humans, chose the less risky option in times of plenty. Then the experiment was reversed. Monkeys were offered three grapes, but in option A were only actually given two grapes. In option B, they had a fifty-fifty chance of receiving all three grapes or one grape only. The results were that monkeys, like humans, take more risks in times of loss.

The implications of this experiment are that because monkeys make the same irrational judgements that humans do, maybe human error is not a result of the complexity of our financial institutions, but is imbedded in our evolutionary history. If this is the case, our errors of judgement will be very difficult to overcome. On a more optimistic note however, humans are fully capable of overcoming limitations once we have identified them. By recognising them, we can design technologies which will help us to make better choices in future.

1 What was the aim of the experiment outlined above?

A To investigate whether monkeys could learn to use money
B To investigate where human mistakes come from
C To find out whether it is better to take risks in times of loss
D To determine whether monkeys make more mistakes than humans

2 Where in paragraph 3 could the sentence below be best placed?
The team distributed metal discs to the monkeys, and taught them that the discs could be exchanged with team-members for food.

A
B
C
D

3 Which of the following statements is the best paraphrase of the highlighted sentence?
On a more optimistic note however, humans are fully capable of overcoming limitations once we have identified them.

A Hopefully, humans will soon be able to solve these problems.
B Fortunately, humans can solve problems that we know about.
C Luckily, humans do not have many limitations which have been identified.
D We are happy to note that we can solve the problem which we have identified.

4 The words 'cottoned on' are closest in meaning to:

A learnt
B knew
C completed
D concluded

5 Which paragraph addresses why monkeys were chosen for the experiment?

A Paragraph 2
B Paragraph 3
C Paragraph 4
D Paragraph 5

6 What can be inferred about Laurie Santos?

A She thinks that both humans and monkeys are greedy.
B Her job frequently involves working with monkeys.
C She believes that humans should never take risks.
D She prefers monkeys to humans.