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听力原文：Sugar is found naturally in foods such as fruit. Sugar is also added to many processed foods and drinks. Now an international report warns people to limit the sugar they eat.
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Why does the author speak of giant pants？

Cutting budget for science research and development further smothers incentives for American students to ______.

Previously, young generations were ______ to make sacrifices.

SECTION A CHINESE TO ENGLISH
Directions: Translate the following text into English.
在十二世纪及随后的几个世纪中，练金术在欧洲得到广泛的研究，并引起许多有学问的人的注意 .虽然他们制造金子的种种尝试注定了是要失败的，但是他们的工作却使许多新的化学知识和实验方法得以发展。然而后来欧洲的许多炼金术士却是十足的骗子,他们施展各种诡计诈骗那些信以主真的人因而练金术也就场名扫地。到了十六世纪前半期，炼金术士的目标已经由制造黄金为制造药物了。他们特别是要寻求一种名为“长生不老”的奇异物质。一种能治百病的灵丹妙药。而且有些人认为事实将证明这种灵丹妙药和"哲人之石"是同一物质。化学的这个阶段差不多一直延续到1700年。