![]()
![]()
1. According to paragraphs 1 and 2, what evidence leads astronomers to believe that all the planets formed at approximately the same time?
A. Samples of rocks from all the planets are the same age.B. All the planets orbit the Sun in the same direction and in about the same planet.C. All planets have the same igneous and metamorphic processes.D. The gravitational field of each planet is about the same strength.
2. Which of the following is NOT mentioned in paragraph 2 as a cause of constant change to Earth's crust?3. Which of the following can be inferred from paragraph 3 about meteorites?A. Their composition can help determine the part of the larger body from which they broke off.B. They are difficult to distinguish from rocks in Earth's mantle.C. Their collisions with Earth have become more frequent than in the past.D. They are older than the rest of the solar system.4. According to paragraph 3, which of the following is a characteristic of asteroids?A. They are the largest meteors.B. They are made mostly of iron and other metals.C. They often collide with Earth.D. They are the oldest meteors.5. Which of the following can be inferred from paragraph 4 about the radiometric dating of meteorites?A. Scientists tried several different radiometric systems before finding one that worked.B. The radiometric dating of different meteorites produced similar results.C. Many meteorites were damaged by the radiometric dating.D. Radiometric dating was not as accurate as scientists expected.6. According to paragraph 4, why are scientists confident that the age of the oldest meteorites they studied is also the age of the solar system?A. Radiometric dating has been proven to be reliable.B. The oldest rocks found on the surface of the Moon are the same age as the meteorites.C. No meteorites have been found that are younger than 4.6 billion years old.D. Meteorites on the Moon are the same age as those on other planets.7. Why does the author refer to "inflating a balloon with small coins attached to its surface"?A. To help explain how the universe can expand while the galaxies remain the same sizeB. To imply that the universe must eventually stop expandingC. To support the statement that most stars are found in disk-shaped galaxiesD. To help explain how the universe began as a single point of dense matter8. According to paragraph 6, how did astronomers learn that the universe is expanding?A. By measuring the distance between galaxiesB. By observing the movement of stars within galaxiesC. By studying the wavelengths of light from distant galaxiesD. By comparing the sizes of different galaxies
9. Look at the four squares █ that indicate where the following sentence could be added to the passage.Several varieties of meteorites have been observed.
Where would the sentence best fit? Click on a square (█) to add the sentence to the passage.
10. Directions: An introductory sentence for a brief summary of the passage is provided below. Complete the summary by selecting the 3 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.There is strong evidence that all the planets of our solar system were formed from the same disk of matter at the same time.A. Determining the age of the planets by examining rocks on Earth is difficult because Earth's crust is constantly changing.
B. Meteorites found on Earth and rocks from the Moon's surface are the best evidence for estimating the age of the planets.
C. The expansion of the universe makes it possible to estimate its age by measuring the amount of the red shift of light coming from distant galaxies.
D. All three kinds of meteorites are similar in composition to Earth in that they have an inner core, a rocky mantle, and an outer crust.
E. Radiometric dating of meteorites recovered from the Moon shows that they are older than those that are found on Earth.
F. The redshift phenomenon measures the rate at which the stars in a galaxy are moving away from each other. 1-5：BDAAB
6-10：BACA(ABC)
相信大家读完后会发现真题和TPO出题思路还是有不少区别，并且也更集中于常规的重要考点（例子、逻辑、定位等等）。如果对于题目有更多疑问，欢迎在留言区留言和Chris讨论。后续我们也会持续更新更多考场真题，欢迎继续关注哦！
![]()
