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托福考試復(fù)習(xí)模擬試題及答案（精選2套）

　　從小學(xué)、初中、高中到大學(xué)乃至工作，我們最熟悉的就是練習(xí)題了，只有多做題，學(xué)習(xí)成績才能提上來。學(xué)習(xí)就是一個反復(fù)反復(fù)再反復(fù)的過程，多做題。一份什么樣的習(xí)題才能稱之為好習(xí)題呢？下面是小編精心整理的托�？荚噺�(fù)習(xí)模擬試題及答案，歡迎大家分享。

托�？荚噺�(fù)習(xí)模擬試題及答案（精選2套）

　　托�？荚噺�(fù)習(xí)模擬試題及答案 1

　　The largest of the giant gas planets, Jupiter, with a volume 1,300 times greater than Earths, contains more than twice the mass of all the other planets combined. It is thought to be a gaseous and fluid planet without solid surfaces, Had it been somewhat more massive, Jupiter might have attained internal temperatures as high as the ignition point for nuclear reactions, and it would have flamed as a star in its own right. Jupiter and the other giant planets are of a low-density type quite distinct from the terrestrial planets: they are composed predominantly of such substances as hydrogen, helium, ammonia, and methane, unlike terrestrial planets. Much of Jupiters interior might be in the form of liquid, metallic hydrogen. Normally, hydrogen is a gas, but under pressures of millions of kilograms per square centimeter, which exist in the deep interior of Jupiter, the hydrogen atoms might lock together to form a liquid with the properties of a metal. Some scientists believe that the innermost core of Jupiter might be rocky, or metallic like the core of Earth.

　　Jupiter rotates very fast, once every 9.8 hours. As a result, its clouds, which are composed largely of frozen and liquid ammonia, have been whipped into alternating dark and bright bands that circle the planet at different speeds in different latitudes. Jupiters puzzling Great Red Spot changes size as it hovers in the Southern Hemisphere. Scientists speculate it might be a gigantic hurricane, which because of its large size (the Earth could easily fit inside it), lasts for hundreds of years.

　　Jupiter gives off twice as much heat as it receives from the Sun. Perhaps this is primeval heat or heat generated by the continued gravitational contraction of the planet. Another starlike characteristic of Jupiter is its sixteen natural satellites, which, like a miniature model of the Solar System, decrease in density with distance — from rocky moons close to Jupiter to icy moons farther away. If Jupiter were about 70 times more massive, it would have become a star, Jupiter is the best-preserved sample of the early solar nebula, and with its satellites, might contain the most important clues about the origin of the Solar System.

　　1. The word "attained獲得，達(dá)到" in line 4 is closest in meaning to

　　(A) attempted

　　(B) changed

　　(D) reached

　　2. The word "flamed" in line 5 is closest in meaning to

　　(A) burned

　　(B) divided

　　(D) grown

　　3. The word "they" in line 7 refers to

　　(A) nuclear reactions

　　(B) giant planets

　　(D) substances

　　4. According to the passage , hydrogen can become a metallic-like liquid when it is

　　(A) extremely hot

　　(B) combined with helium

　　(D) under great pressures

　　5. According to the passage , some scientists believe Jupiter and Earth are similar in that they both have

　　(A) solid surfaces

　　(B) similar masses

　　(D) metallic cores

　　6. The clouds surrounding Jupiter are mostly composed of

　　(A) ammonia

　　(B) helium

　　(D) methane

　　7. It can be inferred from the passage that the appearance of alternating bands circling Jupiter is caused by

　　(A) the Great Red Spot

　　(B) heat from the Sun

　　(D) Storms from the planets Southern Hemisphere

　　8. The author uses the word "puzzling" in line 17 to suggest that the Great Red Spot is

　　(A) the only spot of its kind

　　(B) not well understood

　　(D) a problem for the planets continued existence

　　9. Paragraph 3 supports which of the following conclusions?

　　(A) Jupiter gives off twice as much heat as the Sun.

　　(B) Jupiter has a weaker gravitational force than the other planets.

　　(D) Scientists might learn about the beginning of the Solar System by Studying Jupiter.

　　10. Why does the author mention primeval heat (lines 21)?

　　(A) To provide evidence that Jupiter is older than the Sun

　　(B) To provide evidence that Jupiter is older than the other planets

　　(D) To suggest a possible source of the quantity of heat that Jupiter gives off

　　11. According to the passage , Jupiters most distant moon is

　　(A) the least dense

　　(B) the largest

　　(D) very rocky on the surface

　　12. Which of the following statements is supported by the passage ?

　　(A) If Jupiter had fewer satellites, it would be easier for scientists to study the planet itself.

　　(B) If Jupiter had had more mass, it would have developed internal nuclear reactions.

　　(D) if Jupiter were larger, it would give off much less heat

　　1答案：DABDD ACBDD AB

　　托�？荚噺�(fù)習(xí)模擬試題及答案 2

　　In the last two hundred years there have been great changes in the method of production of goods. This is now also true of the building industry; for mechanization has been introduced. System building can save both time and money. The principle of system building is that the building is made from a set of standard units. These are either made at the building-site or at a factory. Some designers, in fact, are standardizing the dimensions of rooms. They are made in multiples of a single fixed length, usually ten centimeters. This is called a modular (標(biāo)準(zhǔn)件的) system, and it means that manufactures can produce standardized fittings at a lower cost. The most important fact about system building is its speed. A ten-storey flat, for example, can be completed in four months.

　　There are several new methods of system building. One is the panel method. In this case, the construction company sometimes erects a factory on the site. The walls and floors of the building, called panels, are cast in a horizontal or vertical position. Conduits for electrical wires and sleeves for pipes are cast in the panels when they are being made. The moulds for making these castings are situated all around the building.

　　After the concrete panels are cast, they are allowed to set and harden for a week. Next they are lifted by a tower crane on to any section of the building. There the panels are cemented together at their joints and the floor covering is laid.

　　After the panels have been cemented together, the crane lifts a case into the area. It contains all the fittings to be installed, such as wash-basins, radiators and pipes. Finishing tradesmen, such as plumbers, plasterers, painters and electricians, follow behind to complete the work.

　　In some building developments, in some countries, whole flats with internal features like their bathrooms, bedrooms and connecting stairs, and weighing as much as twenty tons, are carried to the building-site ready-made. A giant overhead crane is used to lift them into position. In the future, this method may become more widespread.

　　1. The main difference between panel method and the method discussed in the last paragraph is_______.

　　A. the latter uses ready-made internal features

　　B. panels are cast in a level position

　　C. the former is used to build walls and floors while the latter to construct bathrooms or bedrooms

　　D. the former is more expensive than the latter

　　2. Which of these statements is TRUE of system building?

　　A. It employs more men. B. It is difficult and dangerous.

　　C. It can save both time and money. D. It means less mechanization.

　　3. According to the passage, the principle of system building is that_______.

　　A. construction methods are safer

　　B. buildings are made from a set of standardized units

　　C. similar buildings can be produced