托福考试2017阅读模拟冲刺题（十六）_第2页

　　6. The word "it" in line 13 refers to

　　(A) iron

　　(B) feldspar

　　(C) granite

　　(D) clay

　　7. Based on the information in the passage , it can be inferred that low-fire clays are MOST appropriate for making objects that

　　(A) must be strong

　　(B) can be porous

　　(C) have a smooth texture

　　(D) are highly decorated

　　8. The phrase "account for" in line 22 is closest in meaning to

　　(A) reduce

　　(B) explain

　　(C) combine with

　　(D) list all of

　　9. The passage supports which of the following conclusions?

　　(A) Clay deposits are only found deep in the Earth.

　　(B) If clay contains too much iron it will melt when fired.

　　(C) Only certain types of clay are appropriate for making china teacups.

　　(D) If sufficient heat is applied, all clay will become nonporous.

　　参考试题：BACCD BBBC