【正文】
de of very thin his boat was never built since it was not possible to make spheres of such thin metal and such size in those studying the flight of birds and the movement of the air, a great scientist of the fifteenth century concluded that birds flew because they flapped(擺動)their wings and that it was possible for man to do the a kind of flappingwing flying machine was men tried and failed to fly with flying was not until 1890 that people discovered why this method would never succeedman could not develop sufficient power with his arms and did Daedalus manage to escape to Sicily, according to the passage? killed the guards and got out of the god came to rescue him and took him son came to rescue him and took him made wings of wax and flew away from the 、According to the English legend, King Bladud lost his life flew too flew too fell to the ground, was hit by a 、The first scientific air flight was designed 、The priest failed to build the boat could not raise enough design was not could not find enough spheres could not be made as designed4According to the last paragraph, man could not fly with flappingwing flying machines手機、網(wǎng)頁、(49)Nevertheless, by examining the actual pyramids and various tools Which have been found, archaeologists have formed a fairly clear picture of thing is certain: there must have been months of careful planning before they could begin to (50)You may think this would have been easy with miles and miles of empty desert around, but a pyramid could not be built just rules had to be followed, and certain problems had to be dry climate of Egypt has helped to preserve the pyramids, and their very shape have made them less likely to fall into is practically certain that plans were made for the building of the pyramids because the plans of other large works have fortunately been first thing they had to do was to choose a suitable , we are only able to guess at the methods people were killed while building the have stood for nearly 5,000 years, and it seems likely that they will continue to stand for thousands of years 4________4________4________ 50、________第6部分:完形填空(第5165題,每題1分,共15分)下面的短文有15處空白,請根據(jù)短文內(nèi)容為每處空白確定1個最佳選項?;卮?165題:TransportationFor many years in the desert, camels Used to be the only form of transportation(運輸).Before the(51)of modern trains, camel trains used to carry all the goods for trading between Central Africa and sometimes(52)to put together camel trains with 10,000 to 15,000 animal often carried(53)400 pounds and could travel twenty miles a form of transportation was so important that camels were called the “ships of the(54).”Now modern trains travel across the desert in a very(55) engine can pull as much weight as 135,000(56).In addition, trains use special cars for their cars carry food。boxcars carry heavy goods。stock cars carry animals。and tank cars carry travel has changed, earliest planes were biplanes(雙翼飛機), with(57)sets of top speed of this plane was 60 miles per pilots used to sit or lie on the wings in the open plane(58)sometimes stopped in the middle of a used to be(59)to fly in bad snow or in rain, the wings frequently became the plane might go improvements during the First World War changed (單翼飛機)took the(60)of flew inside of covered , even these planes were small and (61)people were be able to travel in modern jets make air travel possible for all place in the world is more than手機、網(wǎng)頁、 60、 6 6 rid of 6 6 6 更多內(nèi)容請登陸天宇考王官網(wǎng)查看