2017托福100篇阅读理解试题（六）_第2页

　　5. Granite that has been found above ground has been

　　(A) pushed up from below the crust by magma

　　(B) produced during a volcanic explosion

　　(C) gradually exposed due to erosion

　　(D) pushed up by the natural shifting of the Earth

　　6. Which of the following is produced when magma cools rapidly?

　　(A) granite

　　(B) plutonic rock

　　(C) rhyolite

　　(D) mineral crystals

　　7. The word "finely" in line 22 is closest in meaning to

　　(A) minutely

　　(B) loosely

　　(C) sensitively

　　(D) purely

　　8. Which of the following is another name for volcanic glass?

　　(A) Plutonic rock

　　(B) Crystal

　　(C) Lava

　　(D) Obsidian

　　参考答案： AACAC CAD