Practice mode Reading Comprehension

Which of the following is the most appropriate title for the passage about wind turbines?

Read the passage: A modern wind turbine works rather like an electric fan in reverse. Instead of using electricity to turn blades, it uses moving air to turn blades and produce electricity. The wind pushes against the long, carefully shaped blades, making them rotate around a central hub. This motion turns a shaft connected to a generator inside the housing at the top of the tower. Because winds are usually stronger and steadier higher above the ground, turbines are built on tall towers, and many of the largest stand in open seas where few obstacles slow the air. Turbines produce no smoke while running, but they generate power only when the wind blows, so they are usually combined with other sources of electricity.

Correct answer B. Turning Moving Air into Electricity

Explanation

The passage explains how wind turbines use moving air to produce electricity and why they are placed on tall towers and at sea, so this title captures its main subject.

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Question 01 Reading Comprehension

What can be inferred from the passage about why medical trials include a placebo group?

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Correct answer B. Without one, improvement caused by patients' expectations could be mistaken for the drug's effect.

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Question 02 Reading Comprehension

According to the passage about Mr Aslam’s solar panels in Gujranwala, why does he clean them every two weeks?

Read the passage: Mr Aslam, a retired teacher in Gujranwala, installed six solar panels on his roof last year after growing tired of power cuts during the summer. The panels are connected to a set of batteries, so the fans and lights keep running even when the electricity supply fails. On sunny days the system produces more power than his household needs, and the spare energy charges the batteries for the evening. He cleans the dust off the panels every two weeks with a soft cloth and water, because he noticed that dirty panels produced noticeably less power. His only regret, he says, is that he did not install the system years earlier, when his children were still living at home.

Correct answer A. Dirty panels produce noticeably less power.

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Question 03 Reading Comprehension

What is the passage about microplastics mainly about?

Read the passage: Microplastics are pieces of plastic smaller than five millimetres across. Some are made deliberately small, but most form when larger items such as bottles and bags break into fragments under sunlight and waves. Washing clothes made from synthetic fabrics releases tiny fibres, and car tyres shed particles as they wear down on roads. Rain and rivers carry these particles into the sea. Scientists have now found microplastics almost everywhere they have looked, from deep ocean trenches to Arctic sea ice. Small sea creatures often mistake them for food, and the particles can pass up the food chain. Researchers are still studying what effects this may have on wildlife and on the people who eat seafood.

Correct answer D. Where tiny plastic particles come from and how widely they have spread

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Question 04 Reading Comprehension

What can be inferred from the passage about the dodo of Mauritius?

Read the passage: The dodo was a large, flightless bird that lived only on the island of Mauritius in the Indian Ocean. For thousands of years it had no natural predators there, so it nested on the ground and showed little fear of other animals. Dutch sailors arrived on the island in 1598. They hunted the birds for food, but the greater threat came from the animals they brought with them. Rats, pigs and monkeys raided the dodos' ground nests and ate their eggs. Within less than a century of the sailors' arrival, the dodo had disappeared completely. Its fate is now often used as an example of how quickly human activity can wipe out a species.

Correct answer D. Its lack of fear left it poorly prepared for the dangers that arrived with humans.

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Which of the following is the most appropriate title for the passage about wind turbines?

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