Question

A ground-based system that uses much stronger signals than GPS can find your location in cities and indoors. It is a new positioning system that could compete with GPS to make sure you never lose your directions again.

Instead of satellites, Locata uses ground-based equipment to launch a radio signal over a localized area that is a million times stronger on arrival than GPS. It can work indoors as well as outdoors, and the makers claim the receivers can be shrunk to fit inside a regular cell phone. Even the US military, which invented GPS technology, signed a contract last month agreeing to a large-scale test of Locata at the White Sands Missile Range in New Mexico.

“This is one of the most important technology developments for the future of the positioning industry,” says Nunzio Gambale, CEO and co-founder of the firm Locata, based in Griffith, Australia.

As for the Locata’s accuracy, Christopher Morin of the US Air Force tested it recently at White Sands, and it worked to within 18 centimeters along any axis(軸). Morin says it should be possible to get the resolution down to 5 centimeters.

Admittedly, the tests were performed in an open desert where GPS also works beautifully, but its signals are weak— like a car headlight from 20,000 kilometers away— and easily blocked by solid objects. “Locata’s signal is far stronger, though not guaranteed to work in a complex urban environment,” says David Last, consultant to the UK’s General Lighthouse Authorities.

“Locata’s technology will face competition in the race to transform indoor navigation. But it could shine in specific areas,” Gambale says. “Robots with Locata could easily navigate inside buildings without the complex optical systems they need at the moment. And process that handle precise location data could not only guide you around a mall, railway station or airport, but also take you to the exact shelf in a shop for the product you want. The units small and cheap enough for smart phones should be available within five years— a similar path to the one GPS took on its way towards world domination.”

1.The passage is written mainly to .

A. encourage people to buy the Locata

B. tell us the disadvantage of the GPS

C. introduce a new positioning system Locata

D. tell us that Locata will replace GPS one day

2.Which of the following is not true about Locata according to Paragraph 2?

A. Without the help of the satellites, Locata can tell you where you are.

B. The US military has to test it before using it.

C. Locata has a better signal than GPS.

D. Locata can be fixed into smart phones only.

3.Which of the following words can be used to replace the underlined word in Paragraph 4?

A. accuracy B. speed

C. determination D. length

4.According to the passage, what can we know about Gambale?

A. He did the experiment at White Sands.

B. He is confident in Locata and think highly of it.

C. He said that Locata could not work in a complex urban environment.

D. He is worried about the competition that Locata faces.

Answer 1

1.C

2.D

3.A

4.B

【解析】

試題分析：本文介紹了一款以地面設(shè)備為基礎(chǔ)來發(fā)射信號確定你在城市或室內(nèi)位置的定位體系Locata，可以與GPS.相媲美，信號比GPS.更強(qiáng)，能確保你永遠(yuǎn)不會(huì)迷失方位。

1.小題1】主旨大意題。從第一段得知本文寫作目的是要介紹一款定位系統(tǒng)Locata。選C。

2.小題2】細(xì)節(jié)理解題。根據(jù)第二段提供的信息得知，A ；Locata不是以衛(wèi)星而是以地面設(shè)備為基礎(chǔ)來發(fā)射信號確定你的方位的。C ；Locata信號比GPS.更強(qiáng)。B ；發(fā)明GPS科技的美國軍方也同意測試Locata 后使用它。ABC三項(xiàng)是正確的，而D項(xiàng)Locata可以安裝在普通手機(jī)上，但不是只能安裝在智能手機(jī)上，故選D。

3.小題3】猜測詞義題。第四段講述了Locata定位的精確度， A. accuracy精確度；B. speed速度；C. determination 決心； D. length長度。因此選A。

4.小題4】細(xì)節(jié)理解題。根據(jù)最后一段Gambale 的話語得知他認(rèn)為“Locata’科技雖然面臨著競爭壓力，但是在特定領(lǐng)域一定會(huì)閃閃發(fā)光的。對Locata 很自信在五年內(nèi)會(huì)統(tǒng)治世界，評價(jià)高度。選B。

考點(diǎn)：科技發(fā)明類文章