雅思阅读真题+题目+答案：LOOKING IN THE TELESCOPE

雅思阅读真题+题目+答案：LOOKING IN THE TELESCOPE

雅思阅读真题原文如下：

A story is told that around 400 years ago some children were fooling around in an eye glass shop. They noticed that when they placed lenses one on top of the other, they were able to see a considerable distance. They played around with the concept for a while, experimenting with what happened when they varied the distance between the lenses. Hans Lippershey, the Dutch lens maker who eventually applied for the first telescope patent, credits children as having been his motivation for the invention of the first telescope.

The first telescopes built in the early 1600s were very primitive inventions allowing the user to see around 3-times further than the naked eye. It was not too long however, until Italian astronomer Galileo heard about the invention ‘that through use of correctly-positioned lenses, allowed people to see things a long way away’. The tools used in the manufacturing of the first refracting telescope was all Galileo needed to know and within 24 hours he had developed a better one. In fact, the process of improvements Galileo made on Lippershey’s telescope were quite dramatic. Whereas the original version had a magnification of 3, the new telescope had a magnification of around 30. Galileo achieved these extraordinary results by figuring out the combination of the positions of the lenses and also by making his own lenses which were of better quality. Although he originally thought they were stars, the better quality lenses – and some scientific analysis – enabled him to eventually use his telescopes to see the moons of Jupiter. Galileo’s refracting telescopes – so-called due to the way they handled the light that passed through them – were the standard at that time.

Some 70 years later, British scientist Isaac Newton, explored the way a prism refracts 1 white light into an array of colors. He recognised that a lens was a circular prism and that the separation of colors limited the effectiveness of the telescopes in use at the time. Newton created a Reflective Telescope, one that used a dish-shaped or parabolic mirror to collect light and concentrate the image before it was visible in the eyepiece. Thus, lenses used for magnification in telescopes were replaced by mirrors. Mirrors have since been the standard for telescopes. In fact, according to telescope researcher Dr. Carl Addams, the basic designs of telescopes have not changed much in the last 100 years. What has changed however, is the way technology has been used to improve them. For example, the larger telescopes in the world today are around 10 metres in diameter and the mirrors placed within them are so finely polished that even at the microscopic level there are no scratches or bumps on them at all. To achieve such a flawless surface requires a very expensive process that operates with the utmost precision.

。。。。。余下雅思阅读真题原文省略！

Questions 1–5

Choose the correct letter, A, B, C or D.

Write the correct letter in boxes 1-5 on your answer sheet.

1 According to the writer, the first telescope was

A invented by children.

B made by a lens maker.

C a reflective telescope.

D quite a complex piece of equipment.

2 The writer states that Galileo

A improved on the design of the first telescope.

B created the first reflective telescope.

C took 24 hours to make a reflective telescope.

D allowed people to see 3 times further than the first telescope.

3 The Galileo telescope was better than the first telescope because it

A used mirrors rather than glass.

B was longer than the first telescope.

C used better lens positioning and quality.

D used better quality lenses and glass.

4 The writer states that today large telescopes are

A20 or 30 metres in size.

Bas big as 100 metres.

Cvery costly items.

Das good as will ever be built.

5 Large, powerful telescopes are difficult to build because

A designs have not changed in nearly 100 years.

B it is difficult to locate the flint glass needed for them.

C the area needed to house the telescope is simply too large.

D the lenses must be extremely reflective.

。。。。。余下雅思阅读真题题目及答案省略！

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