Question

閱讀理解 　　Mary Masterman hasn't decided where she will attend college, but when she does, she'll have plenty of money to pay for it．The 17-year-old took home a ＄100,000 scholarship Tuesday as the top winner of the 2007 Intel Science Talent Search． 　　"It was a complete surprise," said the senior at Westmoore High School in Oklahoma City, Oklahoma．"I wasn't expecting it．" Masterman earned first place at this year's competition by building a low-budget spectrograph(攝譜儀)－ an instrument that identifies the unique characteristics, or "fingerprints," of different molecules．Spectrographs are used in a variety of fields, including astronomy, medicine, and law enforcement．They can sense the presence of explosives or drugs, and they can also help determine the age of a piece of artwork． 　　Normally, the cost of a spectrograph can run as high as ＄100,000．Mary, however, built her device－which she crafted from lenses, a laser, aluminum(鋁)tubing, and a camera－for just ＄300．"I wanted to build one that was lower-costing so it would be more available to anyone interested in spectrography," she said． 　　Sticking to a budget was only half the battle．Getting the machine to work was another challenge．"I had to keep coming up with creative ways to adjust or change something," Mary admitted．"It took three months to build and another three months before it actually functioned properly．" 　　Mary competed with more than 1,700 other high school seniors in this year's science challenge．Forty finalists were invited to Washington, D．C．, where they presented their projects at the National Institute of Science．In all, 10 students took home awards for their innovative projects． (1) What’s the best title of the passage? [　　] A． Oklahoma teen comes to a great invention B． Science competition for high school students C． The 2007 Intel Science Talent Search D． Oklahoma teen wins science scholarship (2) _________ is the biggest difference between Mary’s spectrograph and the normal one? [　　] A． Use fields B． Function C． The cost D． The size (3) How long did it take Mary to put his spectrograph into use? [　　] A． Three months． B． Half a year． C． About a year． D． Several years． (4) It can be inferred that the Intel Science Talent Search is _________． [　　] A． a high-tech research institute of fine instruments B． an institute of science based in Washington, D．C． C． a most highly regarded science competition for high school students D． the nation's oldest award for the top scientists with great achievements

Answer 1

答案：1．D;2．C;3．B;4．C;
解析：

(1)	主旨題。短文第一段提到：這位十七歲的高中學生獲得2007年英特爾科學發明獎，領回了十萬美元的獎學金。下文介紹了她的發明的基本情況。由此可知D項最能概括全文的中心。
(2)	細節題。短文第三段提到，一般的攝譜儀的費用在十萬美元，而她的花費卻只有三百美元，因此最大的區別是在成本上的不同。
(3)	細節題。由第四段最后一句可知，制作她的攝譜儀花了三個月時間，然后又花了三個月進行調試，共花了半年的時間才制作成功。
(4)	推測題。通讀全文可知，英特爾科學發明獎的獎金高達十萬美元，參加此項競賽的參加者全是高中學生，由此推斷可知，英特爾科學發明獎是一項專門為高中學生設立的一項關注度極高的科學競賽。