语法填空专题训练课标全国IIIn 1863 the first underground passenger railway in the world opened in London. It ran for just under seven kilometers and allowed people to avoid terrible 61 (crowd) on the roads above as they travelled to and 62 work. It took three years to complete and was built using an interesting method. This included digging up the road, 63 (lay) the track and then building a strong roof over 64 top. When all those had been done, the road surface was replaced.Steam engines 65 (use) to pull the carriages and it must have been 66 (fair) unpleasant for the passengers, with all the smoke and noise. However, the railway quickly proved to be a great success and within six months, more than 25,000 people were using 67 every day.Later, engineers 68 (manage) to construct railways in a system of deep tunnels (隧道), which became known to the tube. This development was only possible with the 69 (introduce) of electric-powered engines and lifts. The central London Railway was one of the most 70 (success) of these new lines, and was opened in 1900. It had white-painted tunnels and bright red carriages, and proved extremely popular with the public.答案：61. 62.. 63.. 64.. 65.. 66.. 67.. 68.. 69.. 70.. 课标全国IThere has been a recent trend in the food service industry toward lower fat content and less salt. This trend, which was started by the medical community（医学界） 61 method of fighting heart disease, has had some unintended side 62 (effect) such as overweight and heart disease—the very thing the medical community was trying to fight.Fat and salt are very important parts of a diet. They are required 63 (process) the food that we eat, to recover from injury and for several o...
