【正文】 the highlighted sentence im plies that he refused to do this because he wanted ex hibitors to buy several Kinetoscope machines at a time instead of a single projector. Choice 4 says that Edison refuse d to develop projection technology unless exhibitors agreed to purchase m ore that one pr ojector from him. The highlighted se ntence actually says that Edison had already reasoned or conclude d that exhibitor s would not buy m ore than one, so choice 4 is a change in e sse ntial meaning.4. ○2This is a V ocabulary que stion. The word bei ng tested is readily. It is highlighted in the passage. Readily meanseasily, so choice 2 is the correct answer. The other choices do not fit in the cont ext of the sentence.5. ○3This is a Vocabulary que stion. The word being tested is assistance。 that design had bee n succe ssful for him in the pa st. The paragraph doe s not mention the phonograph parlor s to explain E dison39。 the passage suggests that the author believes Desertification will continue to increase. The last paragraph of the passage says that slowing or rever sing the erosion proce ss will be very difficult, but that it may occur in those areas that are not too affected already if rigorously enforce d anti erosion processe s are implemented. Taken together, this suggests that the author is not confident this until happe n。 means without, so the correct answer is choice 4, lacking in. If you lack something that means you are without that thing.8. ○4This is a Factual Information question a sking for specific information that can be found in paragraph 9. The correct answer is choice 4, bring salts to the surface. The paragraph says that the final human cause of desertification is salinization resu lting from overirrigation. The paragraph goes on to say that the overirrigation causes the water table to rise, bringing salts to the surface. There is no mention of the proce ss interfering with or limiting irrigation, or of the amount of air the soi l is required to absor b, so choices1,2, and 3 are all incorrect.9. ○3This is a Negative Factual Information que stion asking for specific information that can be found in the passage. Choice 3, insuffic ient irrigation, is the correct answer. Choice 1, soil erosion, is explicitly mentioned in paragraph 2 as one of the primary causes of desertification, so it is not the correct answer. Choice 2, global warning, is mentioned as a cause of de sertification in paragraph 4, so it is inc orrect. Choice4, raising of live stock, is de scribe d in paragraph 7 a s another cause of de sertification, so it is inc orrect. Thepassage include s excessive irrigation as a cause of desertification, but not its opposite, insufficient irrigation, so that is the correct answer.10. ○1This is a Sentence Sim plification question. As with all of the se items, a single sentence in the passage is highlighted:The extreme seriousness of desertification result s from the va st areas of land and the tremendous numbers of pe ople affected, as well as from the great difficulty of re versing or even slow ing the pr ocess.The correct answer is choice 1. That choice contains all of the e sse ntial information in the highlighted sentence and does not change it s meaning. The only substantive diffe re nce between choice 1 and the tested sentence is the order in whic h he information is pre sented. Two clauses in the highlighted sentence, The great difficulty of reversing the process and the numbers of pe ople affected, have simply bee n reverse d。ANSWER KEY for T OEFL READINGTPO (119 ), OG, Official M odel Te st, Online Test huangxiaoh ongTPO 1 ............................................................................................................................................. 4Groundwater ............................................................................................................................ 4The Origins Of Theater ............................................................................................................... 4Timberline Vegetation On Mountains .......................................................................................... 5TPO 2 ............................................................................................................................................. 6The Origins Of Cetaceans............................................................................................................ 6Desert Formation ...................................................................................................................... 9Early Cinema ........................................................................................................................... 12TPO 3 ........................................................................................................................................... 15Architecture............................................................................................................................ 15Depletion of the Ogallala Aquifer ............................................................................................... 15The LongTerm Stability of Ecosystem s ...................................................................................... 16TPO 4 ........................................................................................................................................... 17Deer Populations of the Puget Sound ......................................................................................... 17Cave Art in Europe ................................................................................................................... 17Petroleum Resources ............................................................................................................... 18TPO 5 ......................