职称英语阅读理解练习题(4)

　　Space-age Archeology 　　the traditional tools of archeologists are shovels and picks.but high technology is making the archeologists work and time far more productive. 　　archeologists dug pits along the old river banks and found clues to the past: stream-rounded pebbles,stone-age axes,broken ostrich eggshells,and the shells of land snails.the archeologists were quite pleased with these findings.for years,theyd been finding stone axes scattered through the desert,and couldnt understand why.now we know that early humans were living on the banks of old rivers,and left their beautiful tools behind.some are so sharp that you could shave with them. 　　by the end of the second day,the team found a stretch of walled fields that expedition members said look like old new england fences.they just go on,non-stop,for 40 miles.later in the week,an ancient village was pinpointed,as was the lost city of oxpemul,once found in the early 1930s but quickly reclaimed by the jungle.the findings made them able to map the extent of the mayan civilization in about five days.working on foot,it would have taken at least 100 years. 　　1.with the help of the space-shuttle-carrieD.radar, archeologists found 　　B.traces of ancient riverbeds under the saharA.desert. 　　D.A.mountain beneath the saharA.desert. 　　A.it was an olD.avenue, 　　C.it was shapeD.by flowing water. 　　3.the stream-roundeD.pebbles anD.stone-age axes which were founD.along the ancient river banks show that 　　B.ancient people didnt know how to make weapons. 　　D.early humans were gooD.at fighting with sharp weapons. 　　A.olD.new englanD.fences. 　　C.the expedition members. 　　5.which of the following best summarizes the main information of the passage? 　　B.without high-tech, the archeologists work woulD.come to A.stop 　　D.high-tech makes the archeologists work more fruitful.