2017托福100篇阅读理解试题（四十四）_第2页

　　6. According to the passage , 30 percent of the Sun's incoming energy

　　(A) is stored in clouds in the lower latitudes

　　(B) is transported by ocean currents

　　(C) never leaves the upper atmosphere

　　(D) gets stored as latent heat

　　7. The word "it" in line 18 refers to

　　(A) square meter

　　(B) the Sun's energy

　　(C) latent heat

　　(D) the atmosphere

　　8. The word "primarily" in the line 19 is closest in meaning to

　　(A) chiefly

　　(B) originally

　　(C) basically

　　(D) clearly

　　9. The word "prevailing" in line 19 is closest in meaning to

　　(A) essential

　　(B) dominant

　　(C) circular

　　(D) closest

　　10. All of the following words are defined in the passage EXCEPT

　　(A) low latitudes(line 1)

　　(B) latent heat (line 5)

　　(C) evaporate (line 7)

　　(D) atmosphere (line 14)

　　答案解析：ABBDB DCABD