2022-2023年考博英语-上海交通大学模拟考试题（含答案解析）第42期

1、2022-2023年考博英语-上海交通大学模拟考试题（含答案解析）1. 单选题How many things can you see in the night sky? A lot! On a clear night you might see the Moon, some planets, and thousands of sparkling stars,You can see even more with a telescope. You might see stars where before you only saw dark space. You might see that many stars look larger than others. You might see that some stars that look white are really red or blue. With bigger and bigger telescopes you can see more and more objects in the sky. And you can see t

2、hose objects in more and more details.But scientists believe there are some things in the sky that we will never see. We wont see them with the biggest telescope in the world, on the clearest night of the year. Thats because theyre invisible. Theyre the mysterious dead stars called black holes.You might find it hard to imagine that stars die. After all, our Sun is a star. Year after year we see it up in the sky burning brightly, giving us heat and light. The Sun certainly doesnt seem to be getti

3、ng old or weak. But stars do burn out and die after billions of years.As a stars gases burn, they give off light and heat. But when the gas runs out, the star stops burning and begins to die.As the star cools, the outer layers of the star pull in toward the center. The star squashes into a smaller and smaller ball. If the star was very small, the star ends up as a cold, dark ball called a black dwarf. If the star was very big, it keeps squashing inward until its packed together tighter than anyt

4、hing in the universe.Imagine if the Earth were crushed until it was the size of a tiny marble. Thats how tightly this dead star, a black hole is packeD.What pulls the star in toward its center with such power? Its the same force that pulls you down when you jumpthe force called gravity. A black hole is so tightly packed that its gravity sucks in everythingeven light. The light from black hole can never come back to your eyes. Thats why you see nothing but blackness.So the next time you stare up

5、at the night sky, remember： theres more in the sky than meets the eyes! Scattered in the silent darkness are black holesthe great mystery of space.1.According to the article, what causes a star to die?2.Which of the following statements is NOT a fact?3.What happens AFTER a star dies?4.Why cant you see light when you look at a black hole?5.What is the main idea of the article?问题1选项A.As its gases run out, it cools down.B.It collides with other stars.C.It can only live for about a million years.D.A

6、s it gets hotter and hotter, it explodes.问题2选项A.Black holes are dead stars.B.Black holes have gravity.C.Black holes are invisible.D.There is nothing as mysterious as a black hole.问题3选项A.It becomes invisible.B.It falls to Earth.C.It burns up all of its gases.D.It becomes brighter and easier to see.问题4选项A.Because most black holes are so far away.B.Because the gravity of a black hole is so strong that it sucks the light inward.C.Because as the stars gases burn, it stops giving off heat and light.D.

7、Because as a star cools, its outer layers pull in toward its center.问题5选项A.The future of our Sun billions of years from now.B.The difference between our Sun and a dead star.C.The mystery of black holes in the universe.D.The sparkling and dying stars in the sky.【答案】第1题:A第2题:D第3题:A第4题:B第5题:C【解析】1.细节事实题。根据笫五段的第二句when the gas runs out, the star stops burning and begins to die.当气体耗尽时, 恒星停止燃烧并开始死亡。选项A符合原文。2.细节事实题。根据倒数第二段的内容可知, 选项A, B, C均是对黑洞正确的描述;选项D描述太绝对, 所以不正确。3.判断推理题。根据六七段的内容可知, 当恒星死亡后, 重力使其向内挤压, 最

8、后可能形成黑洞。而黑洞是看不见的, 所以选项A正确。4.判断推理题。根据倒数策二段的倒数二三句A black hole is so tightly packed that its gravity sucks in everythingeven light. The light from black hole can never come back to your eyes.黑洞是如此的紧凑以至于它的重力吸收一切甚至光。黑洞发出的光永远不会回到你的眼睛里。选项B符合原文。5.主旨大意题。结合全文内容, 本文主要是讲黑洞的形成与影响, 所以选项C正确。2. 单选题In the （ ） chapters, the professor has traced the redefinition of Britains global position in recent decades.问题1选项A.obsoleteB.abidingC.precedingD.wielding【答案】C【解析】形容词辨析题。obsolete废弃的，老旧的；abiding永久的，持久的，不变的；preceding在前的

9、，前述的； wielding运用。句意：在前几章中，这位教授追溯了近几十年来英国全球地位的重新定义。选项C符合句意。3. 单选题According to （ ） sources, the Leaning Tower of Pisa is to be up righted under a restoration plan by the Italian Government.问题1选项A.conformedB.confirmedC.informedD.transformed【答案】B【解析】形容词词义辨析。 conformed一致的,顺从的; confirmed确定的,坚定的; informed消息灵通的,见多识广的; transformed转变的。句意：据可靠消息, 在意大利政府的一项恢复计划中, 比萨斜塔将得到修复。选项B符合原文。4. 单选题The first few months of the year I had dreaded the ringing of the telephone, because I knew it meant another （ ） decision to be made.问题1选项A.criticalB.plentifulC.decentD.massive【答案】A【解析】形容词辨析题。critical决定性的, 关键性的; plentiful丰富的, 大量的;decent 得体的,令人满意的; massive可观的, 巨大的。

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