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首页>托福考试备考专区>TPO阅读>托福TPO60阅读Passage 3题目+完整原文(已收藏)

托福TPO60阅读Passage 3题目+完整原文(已收藏)

2021-01-26 11:36来源:互联网作者:上海管理员

摘要:托福TPO试题基本所有参加托福考生必做试题,为更好服务于广大考生,上海新航道小编会及时的更新托福TPO试题信息,包括TPO试题、答案及解析等内容。在下文中小编整理了托福TPO60阅读Passage 3题目+完整原文(已收藏),希望对大家有所帮助,如在学习过程中有问题,可以加新航道上海学校专业老师微信(微信号shnc_2018)进行咨询。

托福TPO试题基本所有参加托福考生必做试题,在下文中上海新航道托福培训小编整理了托福TPO60阅读Passage 3题目+完整原文(已收藏),希望对大家有所帮助!

前面咱们阅读了托福TPO60阅读Passage 3完整原文,下面一起来做一下托福TPO60阅读Passage 2题目吧!


托福TPO60阅读Passage 3题目

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

A. inaccurate

B. Intense

C. Inaccessible

D. informative

2. According to paragraph 1, which of the following findings provides the basis for Earth' s division into three parts?

A. All seismic waves pass deep within Earth.

B. There are no significant differences in the behavior of P-waves and S-waves.

C. Discontinuities occur at different depths within Earth

D. Earth' s crust is too thin to account for the size of the planet.

3. The word "drastically" in the passage is closest in meaning to

A. gradually

B. severely

C. typically

D. permanently

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

A. suddenly

B. eventually

C. smoothly

D. normally

5. According to paragraph 2, entering the outer core affects seismic waves in each of the following ways EXCEPT:

A. S-waves do not continue traveling.

B. waves are absorbed by the outer core.

C. P-waves are slowed down

D. P-waves do not change direction

6. Paragraph 3 supports which of the following statements about the inner core?

A. It is smaller in volume than the Moon.

B. It consists of materials different from those found in the outer core

C. It is subject to more pressure than the outer core

D. It is not solid even though it behaves seismically as if it were.

7. According to paragraph 4, why do scientists believe that Earth' score consists of materials of very high density?

A. Under the extreme pressure conditions near the center of Earth, any materials would become very dense.

B. Without a very dense core, Earth's overall density would not be as high as it is found to be

C. Earth' s deep interior is known to be solid, and solids are always denser than liquids.

D. Earth' score is known to contain the same high-density rocks that are formed on Earth' s surface.

8. According to paragraph 4, why do scientists believe that Earth' s core contains materials other than iron mixed with nickel?

A. In the absence of such materials, the core might be too dense

B. Iron and nickel do not mix evenly without the presence of lighter elements.

C. Laboratory experiments showed that minor amounts of silicon, sulfur, carbon, and oxygen are present in samples

D. Iron-nickel alloys always contain minor amounts of elements such as silicon, sulfur, carbon, or oxygen.

9. According to paragraph 5, why does the presence of iron meteorites in our solar system suggest that an iron-nickel core for Earth is plausible?

A. Iron meteorites indicate that our solar system contains large quantities of iron alloyed with nickel.

B. Some scientists think that the iron meteorites were originally part of Earth and broke off long ago

C. Some scientists think that iron meteorites may be pieces from the core of a planet that broke apart

D. Iron meteorites in our solar system were formed at about the same time that Earth was formed.

10. The word "embedded" in the passage is closest in meaning to

A . active

B. Revolving

C. Formed

D. enclosed

11 . Which of the sentences below best expresses the essential information in the highlighted sentence in the passage? Incorrect choices change the meaning in important ways or leave out essential information [ Paragraph 6] There is further evidence that Earth may have a metallic core. Anyone who understands the functioning of a compass is aware that Earth has a magnetic field. The planet itself behaves as if there was a great bar magnet embedded within it. A magnetic field is developed by the flow of electric charges and requires good electrical conductors. Silicate rocks, such as those in the mantle and crust, do not conduct electricity very well, whereas metals such as iron and nickel are good conductors. Heat-driven movements in the outer core, coupled with movements induced by Earth' s spin, are thought to provide the necessary flow of electrons (very small particles that carry a negative charge) around the inner core that produces the magnetic field. Without a metallic core, Earth' s magnetic field would not be possible.

A. A combination of different motions produces Earth's magnetic field, and the magnetic field is thought to cause a flow of electrons around the planet' s inner and outer core.

B. The flow of electrons around the planet that produces Earth' s magnetic field is the combined effect of motions that are thought to occur in the planet' s inner core

C. The flow of electrons around the inner core that produces Earth' s magnetic field is thought to be the joint result of motions in the outer core and motions caused by Earth's spin

D. Heat-driven motions in the outer core interact with motions caused by the spin of the inner core to produce a flow of electrons that is thought to result in Earth' s magnetic field

12. In paragraph 6, why does the author discuss Earth' s magnetic field?

A. To cast doubt on its existence, given what scientists now know about Earth' s composition

B. To provide additional support for the theory of an iron-nickel core for Earth

C. To present a puzzling feature of Earth that has not yet been explained satisfactorily

D. To explain why so many iron meteorites are found near Earth

13. Look at the four squares [] that indicate where the following sentence could be added to the passage Several of these have been named after their discoverers.

Where would the sentence best fit? Click on a square [ ] to add the sentence to the passage.

[ Paragraph 1] Knowledge of Earth' s deep interior is derived from the study of the waves produced by earthquakes, called seismic waves Among the various kinds of seismic waves are primary waves (P-waves) and secondary waves (S- waves). [ A ] Primary and secondary waves pass deep within Earth and therefore are the most instructive. [ B] Study of abrupt changes in the characteristics of seismic waves at different depths provides the basis for a threefold division of Earth into a central core; a thick, overlying mantle: and a thin, enveloping crust. [ C] Sudden changes in seismic wave velocities and angles of transmission are termed discontinuities. [ D]

14. Our knowledge of Earth' s interior is based on the study of the transmission of seismic waves within the planet.

Answer Choices

A. Study of marked changes in the transmission of seismic waves at different depths has led scientists to divide Earth into the crust, the mantle, and the core.

B. Studies of the transmission of seismic waves show that Earth's core is less dense then the solid crust, which explains why the core exists mostly as a liquid

C. Changes in the characteristics of seismic waves at the Gutenberg discontinuity support the conclusion that the outer part of Earth' score is liquid.

D. Silicate rocks, which are found in Earth' s mantle and crust, are not good conductors of electricity.

E. Scientists believe that most of the iron and nickel found in Earth's core came from iron meteorites scattered into space when the interior of an ancient planet broke apart.

F. A variety of evidence leads to the conclusion that Earth' s inner core is solid and composed primarily of metals, which fits well with the fact that Earth has a magnetic field.

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