【題目】 When it comes to long-distance space travel, the biggest problem is that spaceships can only get as far as the fuel onboard allows. In 1964, a British writer Clarke came up with the idea of “solar sailing” in his science fiction. He wrote of large, mirror-like sails that collect power from the sun and free spaceships from the limitation of fuel.

This sci-fi idea was first successful brought to reality in 2010 by Japan’s IKAROS satellite. Ever since then, the technology has improved mission by mission, with the latest being NASA’s Advanced Composite Solar Sail 3(ACS3). NASA has recently announced that it’s going to team up with Lithuania’s satellite-building company NanoAvionics to test its new sail in Low-Earth Orbit.

To many, a solar sail may look like a giant solar panel, but it actually works very differently. While solar panels take in energy from the sun and change it into power, solar sails use Photons given off by the sun to create direct power. Besides, solar panels are big and heavy to carry, while solar sails are just the opposite.

According to Abbott, the CEO of NanoAvionics, the upcoming Low-Earth Orbit trial with NASA, if successful, will be followed with deep-space missions that involve larger solar sails. These are ideal for low-cost and long-distance space travel because fuel will no longer be a problem.

“It started as a sci-fi dream,” Popular Mechanics reporter Jennifer Leman wrote. “Now it could be the future of space flight.”

【1】What can we say about solar sailing according to the first two paragraphs?

A.It was widely used in space travel.

B.It was tried by IKAROS satellite.

C.It was from the creative idea by Clarke.

【2】Which of the following words best describe solar sails compared with solar panels?

A.Big and heavy.B.Small and light.C.Powerful and large.

【3】What does the underlined word These in paragraph 4 refer to?

A.Larger solar sails.B.Deep-space missions.C.Long-distance space flights.

【4】What is the best title for the text?

A.Solar Sail: the Latest Technology

B.Solar Sail: from Dream to Reality

C.Solar Sail: a New Kind of Spaceship

【答案】

【1】C

【2】B

【3】A

【4】B

【解析】

本文是一篇說明文，介紹了“太陽風(fēng)帆”由一種概念變?yōu)楝F(xiàn)實(shí)的過程。

【1】

題意：根據(jù)前兩段內(nèi)容，對于“太陽風(fēng)帆”我們能知道什么？

細(xì)節(jié)理解題。根據(jù)原文In 1964, a British writer Clarke came up with the idea of “solar sailing” in his science fiction可知，“太陽風(fēng)帆”概念是由小說家英國作家克拉克提出來的。C選項(xiàng)It was from the creative idea by Clarke“這是來自克拉克的創(chuàng)意”符合題意，故選C。

【2】

題意：與太陽能電池板相比，下列哪一項(xiàng)的單詞能最好地描述太陽風(fēng)帆？

細(xì)節(jié)理解題。根據(jù)原文Besides, solar panels are big and heavy to carry, while solar sails are just the opposite可知，與太陽能電池板相比，太陽風(fēng)帆又小又輕。B選項(xiàng)Small and light“又小又輕”符合題意，故選B。

【3】

題意：第4段中畫線單詞“These”指的是什么？

詞句猜測題。根據(jù)原文if successful, will be followed with deep-space missions that involve larger solar sails. These are ideal for low-cost and long-distance space travel because fuel will no longer be a problem可知，此處These指的是前面提到的更大的太陽風(fēng)帆。A選項(xiàng)Larger solar sails“更大的太陽風(fēng)帆”符合題意，故選A。

【4】

題意：本文的最佳標(biāo)題是什么？

最佳標(biāo)題。通讀本文最后一段內(nèi)容It started as a sci-fi dream和Now it could be the future of space flight可知，本文主要說的是“太陽風(fēng)帆”從概念走向現(xiàn)實(shí)的過程。B選項(xiàng)Solar Sail: from Dream to Reality“太陽風(fēng)帆：從夢想到現(xiàn)實(shí)”符合題意，故選B。

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