托福考试易错题（2019/2/20）

第1题：Questions 22-31:The first peoples to inhabit what today is the southeastern United States sustained themselves as hunters and gathers. Sometimes early in the first millennium A、D、, however, they began to cultivate corn and other crops. Gradually, as they became more skilled at gardening, they settled into permanent villages and developed a rich culture, characterized by the great earthen mounds they erected as monuments to their gods and as tombs for their distinguished deaD、Most of these early mound builders were part of theAdena-Hopewell culture, which had its beginnings near the Ohio River and takes its name from sites in Ohio. The culture spread southward into the present-day states of Louisiana,Alabama, Georgia, and Florid A、Its peoples became great traders, bartering jewellery, pottery, animal pelts, tools, and other goods along extensive trading networks that stretched up and down eastern NorthAmerica and as far west as the Rocky Mountains.About A、D、400, the Hopewell culture fell into decay. Over the next centuries, it was supplanted by another culture, the Mississippian, named after the river along which many of its earliest villages were locateD、This complex civilization dominated the Southeast from about A、D、700 until shortly before theEuropeans began arriving in the sixteenth century.At the peak of its strength, about the year 1200, it was the most advanced culture in NorthAmeric A、Like their Hopewell predecessors, the Mississippians became highly skilled at growing food, although on a grander scale. They developed an improved strain of corn, which could survive in wet soil and a relatively cool climate, and also learned to cultivate beans. Indeed, agriculture became so important to the Mississippians that it became closely associated with the Sun --- the guarantor of good crops. Many tribes called themselves "children of the Sun" and believed their omnipotent priest-chiefs were descendants of the great sun goD、Although most Mississippians lived in small villages, many others inhabited large towns. Most of these towns boasted at least one major flat-topped mound on which stood a temple that contained a sacred flame. Only priests and those charged with guarding the flame could enter the temples. The mounds also served as ceremonial and trading sites, and at times they were used as burial grounds. According to the passage, when did the Mississippian culture reach its highest point of development A、About A、D、400 Between A、D、400AND、 A、D、700 C．About A、D、1200 D．In the sixteenth century

【单选题】： A     B     C     D

第2题：Lumber (production) was the (main industry) in Michigan until (the early) 1900’’s, (which) the automobile industry was established inDetroit. A、production B．main industry C．the early D．which

【单选题】： A     B     C     D

第3题： Energy from Natural Gas 1. Much of the world gets its energy from fossil fuel sources, including coal, oil, and natural gas, all of which were created millions of years ago.The process began with dead plant and animal matter that collected and over time was buried deep within the earth. There, exposed to extreme pressure and temperatures, the carbon-based material underwent various chemical and physical changes. Some of it became coal, some oil, and some natural gas, depending on the exact conditions it was subjected to. 2. Natural gas is both invisible and odorless.During the first century of the fossil fuel era, it was disregarded as a worthless byproduct of coal and oil. However, people later discovered that it could also be a useful source of energy, and they set about trying to realize its potential. Its use began to grow in the twentieth century and has increased rapidly within the last 40 years. Nowadays, natural gas is employed all over the world to heat homes, generate electricity, power factories, and even fuel vehicles. 3.Because it was created through the same process as other fossil fuels, natural gas can often be retrieved from oil fields, something known as an associated source.Coal beds have similarly been known to yield natural gas. In addition, there are isolated deposits containing only gas that are referred to as non-associated sources. To access a subterranean natural gas pocket, a hole is drilled down into it, just as in oil extraction. However, due to the gas’s lightness, it will rise to the surface on its own instead of having to be pumped out. 4. The compound we know as natural gas is actually a composite of several different substances, the primary one being methane gas.Each deposit has a unique makeup, but other common components of natural gas include propane, butane, and sulfur.Borrowing terms used in the description of oil, natural gas with a high sulfur content is called "sour" while that with a low content is referred to as "sweet" Regardless of the exact composition, natural gas must be refined to remove its impurities; when ready for use, it is nearly pure methane. 5. Natural gas offers many advantages as a fuel source, the first and most important being that it is extremely clean burning. While oil and coal both have complex molecular structures, methane’s is simple: one carbon atom surrounded by four atoms of hydrogen. The lack of excess particles translates into fewer waste byproducts during combustion. For example, all fossil fuels produce carbon dioxide when burned, but natural gas releases substantially less carbon dioxide than other fuels. Given the major role of carbon dioxide in the acceleration of global warming, this is an important attribute. In addition, natural gas emits far less nitrogen and sulfur, which are key contributors to the smog that pollutes the air in metropolitan areas, as well as acid rain. 6. The benefits of natural gas extend far beyond its cleanliness. Since it contains fewer waste particles, its energy can be acquired with much more efficiency than that of the other fossil fuels, meaning a lower overall cost for the consumer. Another advantage is that natural gas is transported via underground pipelines instead of by ships and trucks. Finally, natural gas is relatively plentiful and widespreaD、 Geologists have identified extensive stores inCanada, the United States, Russia, the MiddleEast, andAustralia, among other locations. With the world’s oil supplies quickly dwindling, it is becoming more important than ever to utilize alternative energy resources such as natural gas. 7. Of

【单选题】： A     B     C     D

第4题： Es-tu mieux aujoud'hui -Non, ___________ je vais téléphoner au médecin. A． a ne fait rien B．a ne vaut rien C． a n'en vaut pas la peine D．a ne va pas

【单选题】： A     B     C     D

第5题：The importance of the hand, and more generally of the body, in children’s acquisition of arithmetic_____. A、can hardly be exaggerated B．hardly exaggerated can be C．can be exaggerate hardly D． exaggerated can be hardly

【单选题】： A     B     C     D