2014托福考试阅读模拟试题训练（17）

　　28. Which of the following can be inferred from　the passage about a soil sample with little or　no clay in it?
　　(A) It is not very heavy.
　　(B) It may not hold its shape when molded.
　　(C) Its shape is durable
　　(D) Its texture cannot be classified

　　29. The word "they" in line 23 refers to
　　(A) categories
　　(B) sieves
　　(C) larger particles
　　(D) clay particles

　　30. It can be inferred from the passage that the sediment sieve has an advantage over the hand test in determining soil texture because
　　(A) using the sieve takes less time
　　(B) the sieve can measure clay
　　(C) less training is required to use the sieve
　　(D) the sieve allows for a more exact measure

　　31. During the procedure described in paragraph 3, when clay particles are placed into water　they
　　(A) stick to the sides of the water container
　　(B) take some time to sink to the bottom
　　(C) separate into different sizes
　　(D) dissolve quickly

　　32. The word "fine" in line 24 is closest in　meaning to
　　(A) tiny
　　(B) many
　　(C) excellent
　　(D) various

　　33. All of the following words are defined in the　passage EXCEPT
　　(A) texture (line 3)
　　(B) ribbon (line 11)
　　(C) sediment sieves (line 19)
　　(D) evaporated (line 27)

　　参考答案： DAD BCBBD BA