Earth is the third planet in distance from the sun in the solar system, the only planet known to harbor "}, and the "home" of human beings. From space Earth resembles a big blue marble with switling white louds floating above blue oceans. About 71 percent of Earth's surface is covered by water, which is sential to life. The rest is land, mostly in the form of continents that rise above the oceans. Earth's surface is surrounded by a layer of gases known as the atmosphere., which extends upward rom the surface, slowly thinning out into space.Below the surface is a hot interior of rocky material and wo core layers composed of the metals nickel and iron in solid and liquid form. Unlike the other planets Earth has a unique set of characteristics ideally suited to supporting life as we know it. It is neither too hot, like Mercury, the closest plannet to the Sun, nor too cold, like distant Mars ad the even more distant outer planets -Jupiter, Saturn, Uranus, Neptume,and the tiny dwarf plant Pluto. with's stmosphere includes just the right amount of gases that trap heat from the Sun; resulting in a I soderrite climate for water to exit in liquid from.The atmosphere also helps block radiation from the Sun bat would be harmful to life. Question 38. The work "which" in the first paragraph refers to 11.earth B. surface C. water D. life Juestion 39. Which of the following is Earth compared to? L.A system D. oceans B. Ablue marble C. White clouds Juestion 40. We can infer from the passage that __ b. There is no life on other planets 3. Planets are the "home" of human beings 1. Mercury is never too cold ). the Sun is harmful to life Question 41. According to the passage, all of the statements below are true EXCEPT 1. Mercury is farther from the sun than Earth. B. Most of Earth's surface is covered by water. E. Radiation from the Sun is harmful to life. D. There is a hot interior of rocky material below Earth's surface. Question 42. The layer of gases that surrounds Earth's surface is called __ A. Core layer B, Outer space C. The extension 1). The atmosphere Mark the letter A, B, C or D to indicate the underlined part that needs correction in each of the following questions. Question 43.They have carried out exhausting research into the effects of smartphones on schoolchildren's behaviour and their academic performance. re (A. exhausting B. into C. behavior D. academic performance Question 44. Parents' choices for their children's names is based on names of their relatives or inancestors. vA. choices D. relatives B. their C. is based DreQuestion 45.Opening the letter from his boyfriend,she felt extremely excited. litA. opening D. excited B. from his C. felt d Mark the letter A, B, C, or D to indicate the sentence that is closest in meaning to each of the following at tquestions. Question 46. The detectives will 46. The detectives will record his conversation. A. His conversation will be recorded by the detectives. B. His conversation will recorded His conversation will recorded by the detectives. His conversation recorded by the detectives Question 47. She is the most intelligent woman I have ever met. A. I have never met a more intelligent woman than her. B. She is not as intelligent as the women I have ever met. C. I have ever met such an intelligent woman. D. she is more intelligent than I am. Question 48. She said, "John, I'll show you round my city when you're here." A. She made a trip round her city with John. B. She planned to show John round her city. C. She promised to show John round her city. D. She organized a trip round her city for John.