英语：Unit4《Astronomythescienceofthestars》单元同步测试(1)

1、Unit4 Astronomy： the science of the Stars一：用适当的连词填空；1. The fact is _ I have lost his address.2. Go and get your coat. It's _ you left it.3. I wonder _ you are getting on with your studies.4. The question is _ can complete the difficult task.5. He got caught in the heavy traffic. That was _ he wa

2、s late.6. _ leaves the room last ought to turn off the light.7. _ you have done might do harm to others.二、完形Exploring the autumn skyThe cool nights of autumn are here to_1_ us the chill of winter is not far off. Along with the cool air, the brilliant _2_ of the summer triangle fall in the west to be

3、 replaced with a rather bland-looking region of sky. But don't_3_ initial appearances deceive you._4_ in the fall sky are gems equal to summertime.The Big Dipper swings low this _5_, and for parts of the southern United States it _6_sets. Cassiopeia the Queen, a _7_ of five bright stars in the _

4、8_ of a "W" or "M," reaches its _9_ point overhead, the same spot the Big Dipper reached 6 months _10_. To the east of Cassiopeia, Perseus the Hero rises high. Nestled between these two groups is the wondrousDouble Cluster NGCs 869 and 884 a fantastic sight in binoculars or a low

5、-power telescope.1.A. recallB. retellC. remindD. advise2.A. starsB. planetsC. satellitesD. subjects3.A. makeB. haveC. forceD. let4.A. HiddenB. To hideC. HidingD. Appearing5.A. yearB. monthC. dayD. season6.A . trulyB. exactlyC. actuallyD. possibly7.A. teamB. classC. kindD. group8.A. formB. shapeC. fi

6、gureD. formation9.A. highestB. lowestC. higherD. deepest10.A. beforeB. agoC. sinceD. later三、阅读理解In July 1994 Jupiter, the largest planet in our solar system, was struck by 21 pieces ofcomet( 彗星).When the fragments( 碎片 )landed in the southern part of the giant planet, the explosions were watched by s

7、cientist here on earth. But what if our own planet was hit by a comet?The year is 2094. It has been announced that a comet is heading towards the earth. Most of itwill miss our planet, but two fragments will probably hit the southern part of the earth. The news has caused panic.On 17 July, a fragmen

8、t four kilo meters wide enters the earth atmosphere with a hugeexplosion. About half of the fragment is destroyed. But the major part survives and hits the South Atlantic at 200 times the speed of sound. The sea boils and an enormous wave is created and spreads. The wall of water rushes towards sout

9、hern Africa at 800 kilometers an hour. Cities on theAfrican coast are totally destroyed and millions of people are drowned. The waves moves into the Indian Ocean and heads towards Asia.Millions of people are already dead in the southern part of the earth, but the north won t escape for long. Tons of

10、 broken pieces are thrown into the atmosphere by the explosions. As the sun is hidden by clouds of dust, temperatures around the world fall to almost zero. Crops areruined. Wars break out as countries fight for food. A year later civilization has collapsed. No more than 10 million people have surviv

11、ed.Could it really happen? In fact, it has already happened more than once in the history of theearth. The dinosaurs(恐龙 )were on the earth for over 160 million years. Then 65 million years agothey suddenly disappeared. Many scientists believed that the earth was hit by a space fragment.The dinosaurs

12、 couldn t survive in the cold climate that followed and they became extinct. Willwemeet the same end?1. Which of the following in NOT true according to the author2094?A. The whole world becomes extremely cold.B. All the coastal cities in Africa are destroyed.C. The whole mankind becomes extinct.D. T

13、he visit of the comet results in war. s description of the disaster in2. Why does the author mention dinosaur at the end of the passage?A. Because they could only live in the warm climate.B. Because they once dominated the earth.C. Because their extinction indicates future disasters.D. Because dinos

14、aurs and humans never live in the same age3. In writing the passage, the author intends to _.A. give an accurate description of the possible disaster in the futureB. prove that humans will sooner or later be destroyedC. tell the historical development of the earthD. warn of a possible disaster in th

15、e future4. It can be concluded that the passage is most probably part of a(n) _.A. horror storyB. news reportC. research paperD. article of popular scienceBEdmund Halley was an English scientist who lived over 200 years ago. He studied the observations of comets( 彗星 )which other scientists had made.

16、 The orbit of one particular comet was a very difficult mathematical problem. He could not figure it out. Neither could other scientists who dealt with such problems.However, Halley had a friend named Isaac Newton, who was a brilliantmathematician.Newton thought he had already worked out that proble

17、m, but he could not find the papers onwhich he had done it. He told Halley that the orbit of a comet had the shape of an ellipse(椭圆形 ).Now Halley set to work. He figured out( 解决，计算出 )the orbits of some of the comets that had been observed by scientists. He made a surprising discovery. The comets tha

18、t had appeared in the years 1531, 1607, and 1682 all had the same orbit. Yet their appearance had been 75 to 76years apart.This seemed very strange to Halley. Three different comets followed the same orbit. The more Halley thought about it, the ore his thought that there had been three different com

19、ets as people thought. He decided that they had simply seen the same comet three times. The comet hadgone away and had come back again.It was an astonishing idea! Halley felt certain though to make a prediction( 预言 )of whatwould happen in the future. He decided that this would appear in the year 175

20、8. There were 53years to go before Halleypredictions could be tested. In 1758 the comet appeared in the sky.Halley did not see it, for he had died some years before. Ever since then that comet had beencalled Halley s comet, in his honor.5 Edmund Halley figured out the orbit of _.A. some different co

21、mets appearing several timesB. the same comet appearing at different timesC. three different comets appearing at the same timeD. several comets appearing at the same time6. Halley made his discovery _.A. by doing experimentsB. by means of his own careful observationC. by using the working of other s

22、cientistsD. by chance7. Halley made a surprising, but correct prediction in the year_.8. This passage in general is about _.A. Halley and other scientistsB. the orbit of a cometC. Newton and HalleyD. Halley and his discovery9. Which of the following is TRUE?A. Edmund Halley was an American scientist

23、.B. Halley made his discovery by doing experiments.C. Isaac Newton was a famous mathematician.D. The orbit of a comet had the shape of an around.参考答案用适当的连词填空：1. that2. where3. how4. who5. why6. whoeve7. what完形 (Keys: 1. C2.A3. D4. A5. D6. C7. D8. B9. A10.B)1. 选【 C】。这是一道正误判断题。在倒数第二段中作者写道“A year later civilization hascollapsed. No more than 10 million people have survived.”说明人类文明灭绝了，而不是人类灭绝了。2. 选【 C】。这是一道主旨推断题。为了证明这种灾难发生的可能性，作者列举了恐龙的例子。曾经