Among the most basic forms of the technology is body power. When certain materials are squeezed or stretched, the movement of their atoms creates an electrical charge. Automatic watches have employed the concept for decades, for example, by winding themselves when their user moves their arm. Now, the concept is being considered for a number of other devices.

In a contest seeking visionary ideas for wearable technologies, Intel awarded $5,000 for a concept to change the temperature difference between a person’s body and a special piece of clothing they’d wear into electricity for mobile devices.

Using sound to power devices is another energy-harvesting variation. Stanford University engineers are testing smart microchips that create electricity from ultrasound to power implantable devices that can analyze a person’s nervous system or treat their diseases.

A textile research association in Spain is proposing to obtain electricity from radio waves that flow around everyone to power sensors sewn into clothes, which can monitor a person's heartbeat or other vital signs. Research firm lDTechEx has estimated that annual global sales of energy-harvesting products could hit $2.6 billion by 2024, while WinterGreen Research predicts sales of $4.2 billion by 2019.

Obtaining stable energy from devices can be complex, however. For one thing, the motion that generates the electricity has to be constant to be useful. Moreover, the amount of power the devices produce depends on the person using them，according to a Columbia University study. It determined that taller people on average provide about 20 percent more power than shorter ones when walking, running or cycling.

It’s also unclear how eagerly consumers might welcome energy-harvesting products. While such devices are expected to cost less than battery-powered alternatives when compared over many years, experts say, people may continue buying ones with batteries merely because those would be cheaper in the short term.

62. Which “explode” in the following sentences has the most similar meaning to the word “explode” in Paragraph 2?

A. They were clearing up when the second bomb exploded.

B. The continued tension could explode into more violence.

C. The population exploded to 40,000 during the last tourist season.

D. The boss exploded when he heard of the resignation of the secretary.

63. What makes “energy harvesting” necessary according to the passage?

A. The waste of lithium in the world.

B. The increasing number of electronic devices.

C. The development of technology.

D. The pollution caused by batteries.

64. It can be learned from the passage that .

A. energy-harvesting products save money in the long run

B. taller people can surely produce a larger amount of power

C.automatic watches harvest energy from the users’ body heat

D.two ways of harvesting energy are mentioned in the passage

65. Which of the following might be the best title for the passage?

A. Energy harvesting: a low-risk technology

B. Energy harvesting: a high-profit technology

C. Energy harvesting: a problem-free technology

D. Energy harvesting: an environment-friendly technology

D

He fascinated Victorian England with his unequalled skill at brilliant cases, based on logical reasoning and grasp of forensic(法医的)science, not to mention a mastery of disguises(伪装)and an encyclopedic knowledge of the criminal underclass.

But this detective was not Sherlock Holmes but a real life investigator, Jerome Caminada, who, new research suggests, helped inspire Sir Arthur Conan Doyle’s celebrated hero.

A biography of Caminada written by Angela Buckley reveals a series of striking similarities between him and the fictional character, in terms of their unusual methods and character. It also establishes strong echoes between the real detective’s cases and plot lines used by Doyle.

The son of an Italian father and Irish mother, Caminada was based in Manchester, but was involved in cases which took him across the country, and he enjoyed a nationwide profile in the press, where accounts of his legend were widely reported.

Most of his career was spent with Manchester City Police Force although he later operated, like Holmes, as a “consulting detective”.

He became well-known in the mid 1880s, shortly before Sherlock Holmes made his first appearance in A Study in Scarlet and parallels soon emerged between the two.

As the fictional character relied on a network of underworld contacts~the Baker Street Irregulars~so Caminada was known for his extensive web of informers, whom he would often meet in the back seat of a church. •

These characters helped him build up an encyclopedic knowledge of the Criminal fratemity(兄弟会)， among whom he would often move in disguise—another method in coptnQn with Holmes.

His skill with disguises was so renowned that on one occasion, while tracking a group of thieves at the Grand National dressed as a laborer, his own chief police officer was unable to recognise him.

. However, he also posed as white collar professionals, once while bringing a bogus(假的)doctor to justice.

Over the course of his career, he was reportedly responsible for the imprisonment of 1,225 criminals. His most famous case—and perhaps the one which most closely resembles a Holmes story—was “Mystery of the Four-Wheeled Cab”.

Mrs Buckley identifies Caminada’s “Moriaty” figure as Bob Horridge, a violent, intelligent career criminal, with whom he had a 20-year fight, which began when Caminada arrested him for stealing a watch, landing him with a sentence of seven years’ penal servitude because of his previous crimes.

This harsh sentence for a relatively small crime angered Horridge so much that, as he was sent down, he swore revenge(报复)on the detective.