1、Unit 4 Earthquakes 同步练习(九)阅读理解(共30分，每小题2分) (A) At 5：13 on the morning of Apr1 18th，1906，the city of San Francisco was shaken by a terrible earthquake A great part。f the city was destroyed and a large number of buildings were burnt The number of people who lost homes reached as many as 250000 About 7
2、00 people died in the earthquake and the fires Another earthquake shook San Francisco on October 17th1989It was Americans second strongest earthquake and about 100 people were killedIt happened in the evening as people were traveling homeA wide and busy road which was built like a bridge over anothe
3、r road fell onto the one belowMany people were killed in their cars，but a few lucky ones will not hurt Luckily the l 989 earthquake did not happen in the centre of town but about 50 kilometers away In one part of the town a great many buildings were destroyed These buildings were over 50 years old，s
4、o they were not strong enough There were a lot of fires all over the city The electricity was cut off for several days too1Whats the main idea of the passage? AThe deaths caused by earthquakes in San Francisco BThe earthquake in San Francisco in 1906 CThe earthquake in San Francisco in 1989 DThe two
5、 earthquakes in San Francisco2HOW many people were homeless in the earthquake in 1906? A250，000 B700 C100 D503When did 1989 earthquake happen? AIn the morning BIn the afternoon C111 the evening DAt night4Why were many buildings destroyed in the 1989 earthquake? AIt happened in the centre of the town
6、 B The houses were made of wood C The buildings were old and not strong enough DThe buildings were too tall5Which of the following statements is NOT TRUE? AThe 1906 earthquake was terrible BThe 1 989 earthquake was the strongest one CThe 1989 earthquake didnt happen in the centre of the town DThe 19
7、06 earthquake happened in the morning(B) Some countries have a large number of earthquakes，Japan is one of the them ,while others do not have many，for example， there are few earthquakes in Britain There is often a great noise during an earthquakeThe groundvibratesHouses fall downRailways are broken，
8、 which causes trains to run off Sometimes thousands of people are killed in different waysAbout 60，000 were killed in 1783 in the south of Italy Some people say that earthquakes often happen near Volcanoes， but this is not true The centers of some earthquakes are under the sea The bottom of the sea
9、Suddenly moves The powerful forces inside the earth break the rocksThe coast is shaken and great waves appearThese waves travel long distances and rush over the land when they reach it，breaking down houses and other buildings， even more than the earthquake itself What kind of building stays up best
10、in an earthquake? The Americans carefully studied the results of the earthquake in San Francisco (1906)and believed it best for buildings to be made with concrete walls held together by steel framesSuch are the buildings that cant burn or fall easily6What would make more damage than the earthquake i
11、tself? ANoises during an earthquake BBuildings with concrete walls CGreat waves caused by an earthquake DBroken railway7What does the underlined word“vibratemean? ADamage BShake CBreak DFall8Which of the following statements is true? AEarthquakes often happen in Britain BEarthquakes often happen nea
12、r Volcanoes CThe centers of all earthquakes are under the sea DIn 1906an earthquake happened in San Francisco9 According to the passage， what kind of building stays up best in an earthquake? ABuildings near Volcanoes B Buildings with concrete walls held together by steel frames CBuildings near coast
13、 DBuildings in Japan10Whats the best title of the passage? AEarthquakes BEarthquakes in Japan CThe Damage Caused by Earthquakes DThe Centre of an Earthquake(C) Very high waves are destructive when they strike the landFortunately，this seldom happens One reason is that out at sea， waves moving in one
14、direction almost run into waves moving in a different directionThe two sets of waves tend to cancel each other outAnother reason is that water is shallower near the shore As a wave gets closer to land， the shallow bottom helps reduce its strength But the power of waves striking the shore can still b
15、e very greatDuring a winner gale，waves can strike the shore with the force of 6000 pounds for each square footThat means a wave，25 feet high and 500 feet along its face，may strike the shore with a force of 75 million pounds Yet the waves，no matter how big or how violent，affect only the surface Of th
16、e seaDuring the most raging storms，the water a hundred fathoms(600 feet)beneath the surface is just as calm as on a day without a breath of wind11What is the passage about? AStorms on the sea BDestructive waves CThe powerful waves DSea waves12According t0 the passage，the wave at the shallow bottom i
17、s_ Agreat in strength Bvery high Cgrowing quickly Dweak in strength13What does the sea waves influence? AThe shore and the sea water BThe surface of the sea CEvery part of the sea DThe deep part of the sea14What can we learn from the passage? AThe depth of the sea water is the only factor that influ
18、ences the strength of waves BThe depth of the sea water has n0 influence on the strength of waves CThe depth of the sea water has influence on the strength of high waves DThe depth of the sea water has nothing to do with sea waves15Which of the following statements is NOT TRUE? AThe two sets of waves moving in different directions tend to cancel each other out BAt the depth of 700 feet，there will be no waves during a violent storm CHigh waves are seldom destructive when they strike the land D The waves affects not only the surface but also the bottom of the seaKey:
