艾尚托福阅读，我们一起背单词第17期：TPO22-3(1-6)

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今天我们讲解托福TPO22-3 (1-6) The Allende Meteorite 的第1题到第6题需要重点记忆的单词

1. The word “location” in the passage is closest in meaning to

定位原文：
Altogether, roughly two tons of meteorite fragments were recovered, all of which bear the name Allende for the location of the first discovery.

重点单词：
roughly adv. 粗糙地；大概地 （CET4）
meteorite n. 陨星 （托福）
fragment n. 碎片；片段 （CET4）
recover v. 恢复；重新获得 （高中）
bear v. 忍受；承受；具有 （高中）
location n. 地点；位置 （高中）
discovery n. 发现；发觉 （高中）

定位原文：
Altogether, roughly two tons of meteorite fragments were recovered, ［all of which bear the name Allende for the location of the first discovery］. 总共大约找到了2吨的陨星碎片，所有的碎片的名词都是以首次发现的所在地Allende命名的。

选项单词：
A选项：sight n. 视力 （初中）
B选项：sake n. 缘故 （CET4）
C选项：success n. 成功 （初中）
D选项：place n. 地点；位置 （初中）

2. Which of the following can be inferred from paragraph 1 about the large meteor [that entered Earth atmosphere on February 8, 1969]?关于1969年2月8日进入地球大气层的陨石能推断出什么？

题干重点单词：
meteor n. 陨石 （托福）
atmosphere n. 大气层；氛围 （高中）

定位原文：
Altogether, roughly two tons of meteorite fragments were recovered, ［all of which bear the name Allende for the location of the first discovery］. 总共大约找到了2吨的陨星碎片，所有的碎片的名词都是以首次发现的所在地Allende命名的。

正确选项：It weighed more than two tons
weigh v. 称…重量；权衡；考虑

3. Which of the following sentences below best expresses the essential information in the highlighted sentence in the passage?
the highlighted sentence:
When broken open, Allende stones are revealed to contain an assortment of small, distinctive objects, spherical or irregular in shape and embedded in a dark gray matrix (binding material), which were once constituents of the solar nebula—the interstellar cloud of gas and dust out of which our solar system was formed.

重点单词：
reveal v. 揭露；解释；显示 （高中）
contain v. 包含；含有 （高中）
assortment n. 分类；混合物 （托福）
distinctive adj. 有特色的；与众不同的 （CET6）
spherical adj. 球形的；球面的；天体的 （托福）
irregular adj. 不规则的；无规律的 （CET6）
embed v. 嵌入 （CET6）
matrix n. 模型；母体 (托福)
constituent n. 成分；选民 （CET6）
nebular adj. 星云的；星云状的 （托福）
interstellar adj. 星际的；恒星间的 （托福）

the highlighted sentence:
<When broken open>, Allende stones are revealed to contain an assortment <of small, distinctive objects>, <spherical or irregular in shape> and <embedded in a dark gray matrix (binding material)>, [which were once constituents of the solar nebula]—the interstellar cloud of gas and dust [out of which our solar system was formed].把Allende陨石破开，会发现里面会包含很多小的，与众不同的物体，这些物体呈球状或者不规则的形状，嵌入在一个深灰色的基质中（结合的物质），这些物质是太阳星云，我们的太阳系就是由这些星云的气体和尘埃构成的。

正确选项：Inside Allende meteorite is a dark gray matrix [that binds together small spherical or irregular objects]<formed from the interstellar cloud of gas and dust> [out of which the solar system was made].

4. The word “allusion” in the passage is closest in meaning to

定位原文：
Chondrites take their name from the Greek word Chondros—meaning “seed”—an allusion to their appearance as rocks containing tiny seed.

重点单词：
allusion n. 暗示；提及；所指（托福）allude
tiny adj. 微小的；很少的（初中）

定位原文：
Chondrites take their name from the Greek word Chondros—meaning “seed”—an allusion to their appearance as rocks <containing tiny seed>. Chondrite名字源于希腊中的单词chondros,意思是种子，这里是指他们的外形看起来像包含了细小种子的岩石。

选项单词：
A选项：addition n. 添加；补充 （高中）
B选项：modification n. 修改；改变 （CET4）
C选项：resemblance n. 相似；相像 （CET6）
D选项：reference n. 引用；所指对象

5. The word “enigmatic” in the passage is closest in meaning to

定位原文：
A few chondrules contain grains [that survived the melting event], so these enigmatic chondrules must have formed [when compact masses of nebular dust were fused at high temperature].

重点单词：
grain n. 谷物；粮食；颗粒 （CET4）
enigmatic adj. 神秘的；谜一样的 （托福）
compact adj. 紧凑的；紧密的；简洁的 （CET6）
mass n. 团；块；质量 （高中）
fuse v. 融合；熔化 （CET6）

定位原文：
A few chondrules contain grains [that survived the melting event], so these enigmatic chondrules must have formed [when compact masses of nebular dust were fused at high temperature].少数chondrules含有未遭融化的颗粒，所以这些神秘的chondrules肯定是在高温熔化下的星云紧致密团中形成的。

选项单词：
A选项： dangerous adj. 危险的 （初中）
B选项：mysterious adj. 神秘的 （高中）
C选项：interesting adj. 有趣的 （初中）
D选项：surprising adj. 令人惊讶的 （初中）

6. According to paragraph 3, what does the presence of grains inside some of the chondrules indicate? Chondrules的内部颗粒存在说明了什么？

定位原文：
A few chondrules contain grains [that survived the melting event], so these enigmatic chondrules must have formed [when compact masses of nebular dust were fused at high temperature]—approaching temperature 1,700 degrees celsius—and then cooled before there serving grains could melt.

重点单词：
approach v. 接近； n. 方法；途径；接近 （CET4）
celsius adj./n. 摄氏度
melt v. 熔化；融化 （CET4）

定位原文：
A few chondrules contain grains [that survived the melting event], so these enigmatic chondrules must have formed [when compact masses of nebular dust were fused at high temperature]—approaching temperature 1,700 degrees celsius—and then cooled before there serving grains could melt.少数chondrules含有未遭融化的颗粒，所以这些神秘的chondrules肯定是在高温熔化下的星云紧致密团中形成的,这个高温接近1700摄氏度，然后又在这些颗粒可能被融化前快速冷却下来。

正确选项：The chondrules were formed at high temperatures and then cooled rapidly.

非常开心能跟大家一起分享背单词，我是艾芳如，我们下次再见！