2023年托福听力模拟试题及答案(卷十).docx
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1、-赵德林作品2023 年托福听力模拟试题及答案卷十In July of 1994, an astounding series of events took place. The world anxiously watched as, every few hours, a hurtling chunk of comet plunged into the atmosphere of Jupiter. All of the twenty-odd fragments, collectively called comet Shoemaker-Levy 9 after its discoverers, w
2、ere once part of the same object, now dismembered and strung out along the same orbit. This cometary train, glistening like a string of pearls, had been first glimpsed only a few months before its fateful impact with Jupiter, and rather quickly scientists had predicted that the fragments were on a c
3、ollision course with the giant planet. The impact caused an explosion clearly visible from Earth, a bright flaming fire that quickly expanded as each icy mass incinerated itself. When each fragment slammed at 60 kilometers per second into the dense atmosphere, its immensekineticenergywastransformedi
4、ntoheat,producinga superheated fireball that was ejected back through the tunnel the fragment had made a few seconds earlier. The residues from these explosions left huge black marks on the face of Jupiter, some of which have stretched out to form dark ribbons.Although this impact event was of consi
5、derable scientific import, itespecially piqued public curiosity and interest. Photographs of each collision made the evening television newscast and were posted on the Internet. This was possibly the most open scientific endeavor in history.-赵德林作品The face of the largest planet in the solar system wa
6、s changed before our very eyes. And for the very first time, most of humanity came to fully appreciate the fact that we ourselves live on a similar target, a world subject to catastrophe by random assaults from celestial bodies. That realization was a surprise to many, but it should not have been. O
7、ne of thegreattruthsrevealedbythelastfewdecadesofplanetary exploration is that collisions between bodies of all sizes are relatively commonplace, at least in geologic terms, and were even more frequent in the early solar system.1. The passage mentions which of the following with respect to thefragme
8、nts of comet Shoemaker-Levy 9?(A) They were once combine in a larger body.(B) Some of them burned up before entering the atmosphere of Jupiter.(C) Some of them are still orbiting Jupiter.(D) They have an unusual orbit.2. The word “collectively“ in line 3 is closest in meaning to(A) respectively(B) p
9、opularly(C) also(D) together3. The author compares the fragments of comet Shoemaker-Levy 9to all of the following EXCEPT(A) a dismembered body(B) a train(C) a pearl necklace(D) a giant planet4. Before comet Shoemaker-Levy 9 hit Jupiter in July 1994, scientists(A) had been unaware of its existence(B)
10、 had been tracking it for only a few months(C) had observed its breakup into twenty-odd fragments(D) had decided it would not collide with the planet5. Before the comet fragments entered the atmosphere of Jupiter, they were most likely(A) invisible(B) black(C) frozen(D) exploding6. Superheated fireb
11、alls were produced as soon as the fragments of comet Shoemaker- Levy 9(A) hit the surface of Jupiter(B) were pulled into Jupiter”s orbit(C) were ejected back through the tunnel(D) entered the atmosphere of Jupiter7. The phrase “incinerated 把。烧成灰 itself“ in line 9 is closest in meaning to(A) burned u
12、p(B) broke into smaller pieces(C) increased its speed(D) grew in size8. Whichofthefollowingismentionedasevidenceofthe explosions that is still visible on Jupiter?(A) fireballs(B) ice masses(C) black marks(D) tunnels9. Paragraph 2 discusses the impact of the comet Shoemaker-Levy 9 primarily in terms
13、of(A) its importance as an event of great scientific significance(B) its effect on public awareness of the possibility of damage to Earth(C) the changes it made to the surface of Jupiter(D) the effect it had on television broadcasting10. The “target“ in line 20 most probably referred to(A) Earth(B)
14、Jupiter(C) the solar system(D) a comet ADDBC DACBA 词汇补充: cacia 金合花accordion 手风琴acquamarine 海蓝宝石acre 英亩acronym 首字母缩拼词acute 敏锐的adobe 土墙adorn 装饰adrenaline 肾上腺素affiliate 使隶属于affinity 亲热关系afloat 漂移着aide 副官airborne 在空中alchemist 炼丹家aldosterone 醛固酮alga 水藻allegory 寓言all-star 由明星演员组成的allusive 含示意的;含典故的aloof 远
15、离的;孤零的aluminum 铝alumni 男校友amateur 外行的Perhaps one of the most dramatic and important changes that took place in the Mesozoic era occurred late in that era, among the small organisms that populate the uppermost, sunlit portion of the oceans the plankton. The term “plankton“ is a broad one, designating
16、 all of the small plants and animals that float about or weakly propel themselves through the sea. In the late stages of the Mesozoic era, during the Cretaceousperiod,therewasagreatexpansionofplanktonthat precipitated skeletons or shells composed of two types of mineral: silica and calcium carbonate
17、.This development radically changed the types of sediments that accumulated on the seafloor, because, while the organic parts of the plankton decayed after the organisms died, their mineralized skeletons often survived and sank to the bottom. For the first time in the Earth”s longhistory, verylarge
18、quantities ofsilicaskeletons, whichwould eventually harden into rock, began to pile up in parts of the deep sea.Thick deposits of calcareous ooze made up of the tiny remains of thecalcium carbonate-secreting plankton also accumulated as never before. The famous white chalk cliffs of Dover, in the so
19、utheast of England, are just one example of the huge quantities of such material that amassed during the Cretaceous period; there are many more. Just why the calcareous planktonweresoprolificduringthelatter partofthe Cretaceous period is not fully understood. Such massive amounts of chalky sediments
20、 have never since been deposited over a comparable period of time.The high biological productivity of the Cretaceous oceans also led toideal conditions for oil accumulation. Oil is formed when organic material trapped in sediments is slowly buried and subjected to increased temperatures and pressure
21、s, transforming it into petroleum. Sediments rich in organic material accumulated along the margins of the Tethys Seaway, the tropical east-west ocean that formed when Earth”s single landmass (known as Pangaea) split apart during the Mesozoic era. Many of today”s important oil fields are found in th
22、ose sediments in Russia, the Middle East, the Gulf of Mexico, and in the states of Texas and Louisiana in the United States.1. What does the passage mainly discuss?(A) How sediments were built up in oceans during the Cretaceous period(B) How petroleum was formed in the Mesozoic era(C) The impact of
23、changes in oceanic animal and plant life in the Mesozoic era(D) The differences between plankton found in the present era and Cretaceous plankton2. The passage indicates that the Cretaceous period occurred(A) in the early part of the Mesozoic era(B) in the middle part of the Mesozoic era(C) in the l
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