【題目】There are purple clothes, purple handbags, purple bicycles, purple furniture, even purple computers! So purple is one of the most______colors today. But in the past, purple was a very expensive and unusual color. Let’s take a look at the rich______of the color purple.

Some scientists believe that the first plants to appear on Earth over 500 million years ago______looked purple, not green. Plants today are green because______use green chlorophyll (葉綠素) to produce energy.______these early plants probably used something called retinal, which is a dark purple color.

During the time of the roman Empire (37 BC-476 AD), it was very______to make purple dye (染料). The dye came from sea snails (海螺) .But10.000 dead sea snails______you just one gram (克)of purple dye… as well as a very bad smell! This______purple dye was called Tyrian purple, and it was the preferred______of emperors.

In 16th--century England, purple was______for the kings family members. Queen Elizabeth Is clothes were purple, but ordinary people were not allowed to______the color.

In 1856. William Perkin, an 18-year-old______student, noticed something strange while doing an experiment (實(shí)驗(yàn)). The chemicals (化學(xué)藥品) he used to clean his instruments______with the chemicals he used in his experiment and produced a bright purple color. This______Perkin to start a company using this chemical mixture to make purple dye. The dye was much______than sea snail dye. Thanks to Perkin, now anyone can afford to wear purple clothes.

【1】A. peaceful B. popular C. exciting D. serious

【2】A. history B. style C. research D. product

【3】A. gradually B. especially C. exactly D. probably

【4】A. others B. they C. we D. some

【5】A. And B. So C. But D. Until

【6】A. dangerous B. common C. difficult D. strange

【7】A. got B. passed C. wasted D. cost

【8】A. basic B. harmful C. special D. perfect

【9】A. color B. smell C. plant D. animal

【10】A. even B. never C. seldom D. only

【11】A. wear B. sell C. change D. make

【12】A. geography B. science C. art D. math

【13】A. compared B. mixed C. collected D. kept

【14】A. survey B. suggestion C. discovery D. exam

【15】A. healthier B. thicker C. cheaper D. darker

【答案】

【1】B

【2】A

【3】D

【4】B

【5】C

【6】C

【7】A

【8】C

【9】A

【10】D

【11】A

【12】B

【13】B

【14】C

【15】C

【解析】試題這篇說明文通過對(duì)比和舉例，介紹了紫色的來歷和發(fā)展，說明紫色曾經(jīng)是是一種非常昂貴和不尋常的顏色，但在科學(xué)家Perkin的努力下，用兩種化學(xué)混合物制造紫色染料，終于使紫色成為當(dāng)今最流行的顏色之一。

【1】句意：所以紫色是當(dāng)今最流行的顏色之一。考查形容詞辨析題。根據(jù)開頭There are purple clothes, purple handbags, purple bicycles, purple furniture, even purple computers!，可知紫色很流行，故選B。

【2】句意：讓我們來看看紫色的豐富歷史�？疾槊~辨析題。根據(jù)下一段開頭Some scientists believe that the first plants to appear on Earth over 500 million years ago probably looked purple, not green.，可知談的是紫色的歷史，故選A。

【3】句意：5億多年前出現(xiàn)在地球上的第一批植物可能看起來是紫色的，而不是綠色的�？疾楦痹~辨析題。A. gradually漸漸地；B. especially尤其；C. exactly真地；D. probably可能。本句表推測(cè)，需用probably；根據(jù)句意語(yǔ)境，可知選D。

【4】句意：今天的植物是綠色的，因?yàn)樗鼈冇镁G色的葉綠素產(chǎn)生能量�？疾榇~辨析題�？崭裰复衔牡�plants，復(fù)數(shù)形式，需用they；根據(jù)句意語(yǔ)境，可知選B。

【5】句意：但是這些早期的植物可能使用了一種叫做視網(wǎng)膜的東西，它是一種深紫色�？疾檫B詞辨析題�？崭袂昂笫乾F(xiàn)在的和早期的對(duì)比，屬于轉(zhuǎn)折關(guān)系，需用but連接；根據(jù)句意語(yǔ)境，可知選C。

【6】句意：在羅馬帝國(guó)時(shí)期，很難制造紫色染料�？疾樾稳菰~辨析題。根據(jù)下文The dye came from sea snails. But 10.000 dead sea snails got you just one gram of purple dye…10只死海蝸牛只得到一克紫色染料，可知很難得，故選C。

【7】句意：染料來自海螺。但是10000只死海蝸牛只給了你一克紫色染料。考查動(dòng)詞辨析題。A. got得到；B. passed通過；C. wasted浪費(fèi)；D. cost價(jià)值。根據(jù)句意語(yǔ)境，可知后面三項(xiàng)意思都與句意不合，故選A。

【8】句意：這種特殊的紫色染料被稱為提利紫色，它是皇帝的首選顏色�？疾樾稳菰~辨析題。根據(jù)前文The dye came from sea snails. 染料來自海蝸牛，可知很特別，故選C。

【9】句意：它是皇帝的首選顏色�？疾槊~辨析題。根據(jù)上文was called Tyrian purple，可知是顏色，A. basic基礎(chǔ)的；B. harmful有害的；D. perfect完美的，均不合句意，可排除。故選A。

【10】句意：在第十六世紀(jì)的英國(guó)，紫色只是為國(guó)王的家庭成員�？疾楦痹~辨析題。根據(jù)下文but ordinary people were not allowed to wear the color.普通人不允許穿這種顏色，可知是“只為王室”，故選D。

【11】句意：但是普通人是不允許穿這種顏色的�？疾閯�(dòng)詞辨析題。根據(jù)句意語(yǔ)境，可知wear符合句意，故選A。

【12】句意：1856年，18歲的理科學(xué)生William Perkin在做實(shí)驗(yàn)時(shí)注意到一些奇怪的東西�？疾槊~辨析題。根據(jù)下文The chemicals he used to clean his instruments mixed with the chemicals he used in his experiment and produced a bright purple color.，兩種化學(xué)藥品混合產(chǎn)生了反應(yīng)（產(chǎn)生紫色），可知做的是科學(xué)實(shí)驗(yàn)，故選B。

【13】句意：他用來清洗儀器的化學(xué)藥品與他在實(shí)驗(yàn)中使用的化學(xué)藥品混合，產(chǎn)生了明亮的紫色�？疾閯�(dòng)詞辨析題。mix with（使）與……混合；根據(jù)句意語(yǔ)境，可知選B。

【14】句意：這一發(fā)現(xiàn)使Perkin創(chuàng)辦了一家用這種化學(xué)混合物生產(chǎn)紫色染料的公司�？疾槊~辨析題。根據(jù)上文William Perkin, noticed something strange while doing an experiment. Perkin可知是在做實(shí)驗(yàn)時(shí)注意到的，所以是他的發(fā)現(xiàn)，故選C。

【15】句意：這種染料比海螺染料便宜得多�？疾樾稳菰~比較級(jí)。根據(jù)下文Thanks to Perkin, now anyone can afford to wear purple clothes. 任何人都買得起紫色衣服，可知更便宜，故選C。

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