托福TPO61阅读Passage 1题目+完整原文（已收藏）

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托福TPO61阅读Passage 1题目

1. The word "apparatus' in the passage is closest in meaning to

A. equipment

B. procedures

C. experiments

D. laboratories

2. According to paragraph 2, which of the following is a mistaken belief that people have about crystals?

A. Crystals always have a well-formed shape

B. Minerals are generally composed of crystals.

C. The atoms of a crystal have an orderly arrangement.

D. Crystals are always solid and inorganic.

3. Why is the color of a mineral an "an unreliable diagnostic property"?

A. Different minerals can have the same color

B. The color is often not a result of the chemical makeup that determines the identity of the mineral.

C. The color of a mineral cannot be predicted from knowing what foreign ions it contains.

D. No two pieces of the same mineral have exactly the same color.

4. The word "inherent" in the passage is closest in meaning to

A. bright

B. essential

C. superficial

D. transparent

5. According to paragraph 3, how do different samples of the same mineral come to exhibit a variety of colors?

A. The samples have different crystalline structures.

B. The samples contain different varieties of quartz.

C. The samples differ in the impurities they contain

D. The samples were formed in different exotic conditions.

6. Which of the following can be inferred about streak from paragraph 4?

A. When a sample of a mineral is rubbed on unglazed porcelain, the color of the streak is usually the same as the color of the sample.

B. In most cases, different samples of a mineral produce streaks that are all of the same color even though the samples themselves are of different colors.

C. When a streak is made, the impurities in the mineral are removed and the true color of the mineral is revealed

D. Streak color is reliable for identifying minerals because a given mineral sample always yields the same color of streak each time it is rubbed

7. The discussion of Mohs' scale in paragraph 6 answers which of the following questions?

A. How was it determined that Mohs' scale would have ten minerals?

B. Is quartz one of the ten minerals that determine Mohs' scale?

C. Does Mohs' scale apply to materials other than minerals?

D. What mineral is harder than quartz and softer than diamond?

8. It can be inferred from paragraph 6 that the mineral quartz

A. has no fixed degree of hardness

B. might scratch the surface of a diamond

C. is harder than calcite

D. has atoms that are weakly bonded to each other

9. The word "configuration" in the passage is closest in meaning to

A. Effect

B. Range

C. Transformation

D. Form

10. According to paragraph 7, which of the following is true of the cleavage of micas?

A. Micas are the only minerals to break along planes of weak bonding

B. Micas exhibit poor cleavage because they tend to break unevenly.

C. Micas break in one direction, forming thin sheets with smooth surfaces

D. Micas break in several directions, forming a number of angles and planes.

11. According to paragraph 7, minerals that exhibit no cleavage

A. break evenly in more than one direction

B. have no crystalline form

C. shatter in pieces of various shapes and sizes

D. have surfaces that resemble broken glass

12. Why does the author warn Cleavage should not be confused with crystal form?

A. Because most people have the mistaken belief that the surfaces of crystals are planes of crystal cleavage

B. Because the author's characterization of cleavage in terms of smooth planes and the angles between them could easily be mistaken for a description of crystal form

C. To make the point that crystal form and cleavage are the same property only in the simplest cases of cleavage, such as mica

D. To introduce a discussion of minerals the have cleavage but not crystal form

13. Look at the four squares【】that indicate where the following sentence could be added to the passage

Each mineral has an orderly arrangement of atoms (crystalline structure) and a definite chemical composition that give it a unique set of physical properties.

Where would the sentence best fit? Click on a square【】to add the sentence to the passage.

A mineral is a naturally occurring solid formed by inorganic processes. 【A】Since the internal structure and chemical composition of a mineral are difficult to determine without the aid of sophisticated tests and apparatus., the more easily recognized physical properties are used in identification【B】Most people think of a crystal as a rare commodity, when in fact most inorganic solid objects are composed of crystals【C】The reason for this misconception is that most crystals do not exhibit their crystal form: the external form of a mineral that reflects the orderly internal arrangement of its atoms【D】 whenever a mineral forms without space restrictions, individual crystals with well-formed crystal faces will develop. Some crystals, such as those of the mineral quartz, have a very distinctive crystal form that can be helpful in identification. However, most of the time, crystal growth is interrupted because of competition for space, resulting in an intergrown mass of crystals, none of which exhibits crystal form.

14. Directions: An introductory sentence for a brief summary of the passage is provided below Complete the summary by selecting the THREE answer choices that express the most important ideas in the passage Some sentences do not belong in the summary because they express ideas that are not presented in the passage or are minor ideas in the passage.

This question is worth 2 points.

Drag your answer choices to the spaces where they belong. To remove an answer choice, click on it.

Minerals have a number of physical properties, some of which are useful for mineral identification.

Answer Choices

A. Most minerals show a characteristic crystal form that results from the way their atoms are arranged in the crystal structure

B. Luster is a good guide to the identity of glassy and metallic minerals, but not those that have dull or earthy appearance

C. Some minerals characteristically split along one or more smooth planes of cleavage while others typically fracture unevenly

D. For many minerals, the streak formed by a rubbing a mineral sample on unglazed porcelain is a more reliable guide for identification that the color of the sample

E. The relative hardness of a mineral as determined by Mohs' scale is very useful for identifying a mineral sample

F. Quartz has a characteristic crystal form, but no cleavage and its color varies widely from sample to sample, all of which make it a typical mineral

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