托福听力荟萃 83（在线收听）

I'd like to begin by thanking Dr. Kane for inviting me to be here today. Although I'm not a geologist, I have been collecting minerals for years. My collection is really ______ because I've traveled all over the world to find them. Today I've brought a few specimens for you to see. After I discuss each one, I'll pass it around so that you can look at it more closely. As you know, ______ are the most ______ minerals and are divided into a number of types. These first samples are ______. Notice that they vary in color from white to pink to red. This glassy one is found in volcanic rock. In fact, I found it in New Mexico on a collecting trip. This next sample that I'll pass around is a ______ mineral, also called amazon stone. You can identify it by its bright green color. It's often used in jewelry and really is quite attractive. These final samples are all ______ feldspars. Many plagioclases are very rare, so I'm particularly proud of the variety in my collection. I've also brought a few ______ of some larger mineral samples, and if you'll turn out the light now, I'd like to show them to you.

【填空答案】

diverse: adj. 多种多样的

feldspar: n. ［C］[矿]长石

abundant: adj. 丰富的，充裕的

orthoclase: n.［C］[矿]正长石

microcline: n. [矿]微斜长石

plagioclase: n. [矿]斜长岩

slide: n. ［C］幻灯片

【听力原文】

I'd like to begin by thanking Dr. Kane for inviting me to be here today. Although I'm not a geologist, I have been collecting minerals for years. My collection is really diverse because I've traveled all over the world to find them. Today I've brought a few specimens for you to see. After I discuss each one, I'll pass it around so that you can look at it more closely. As you know, feldspars are the most abundant minerals and are divided into a number of types. These first samples are orthoclases. Notice that they vary in color from white to pink to red. This glassy one is found in volcanic rock. In fact, I found it in New Mexico on a collecting trip. This next sample that I'll pass around is a microcline mineral, also called amazon stone. You can identify it by its bright green color. It's often used in jewelry and really is quite attractive. These final samples are all plagioclase feldspars. Many plagioclases are very rare, so I'm particularly proud of the variety in my collection. I've also brought a few slides of some larger mineral samples, and if you'll turn out the light now, I'd like to show them to you.

【参考译文】

首先要感谢凯恩博士的邀请。我虽然不是地质学家，但是收集矿石标本已经有很多年了。这些标本是我从世界各地收集而来的，因而形状各异，彼此差别很大。今天我带来了部分标本，我会先告你你们每一块矿石标本的信息，之后会给大家仔细观察一番。通常来讲，长石是最常见的矿石，而且种类繁多。第一批样本就是正长石。在这里可以看到，它的颜色分布很广，从纯白色到粉红色，再到赤红色，几乎都有。这块有玻璃光泽的正长石是从火山岩的碎屑中找到的，当时我在墨西哥进行矿石样本采集的活动。接下来我要向你们展示的样本是叫做天河石的微斜长石。这种矿石最显著的特征就是它通体的翠绿色。这种矿石可以用来做珠宝，价值相当大。最后的这些样本是斜长石。斜长石是很少见的矿石种类，因为在我所收藏的样本中，这些斜长石样本是我最得意的藏品。此外还有一些个头较大的矿石样本不便携带，因此我做了几张它们的幻灯片。现在请关上灯，我将向你们展示这些可爱的石头。