内容正文:
高一语法填空每日一练(一)
Day 1
In today’s world, it it not ____41____(usual) for people to board a plane, and be halfway around the world within hours. The large jetliners(喷气客机)in use today ___42___(be) commonplace in most developed countries, but there was a time, not long ago, before air travel was even possible. That was before Orville and Wilbur Wright built and flew their first aircraft in ___43__ early 20 th century.
On December 17, 1903, the brothers made their historic flight in Kitty Hawk, North Carolina, officially opening a new age in travel. What separated the Wright brothers_ 44 other aviation pioneers was that the brothers developed an effective mechanism (机械装置) 45 ( control) their airplane. The control system is still in use today, more than 100 years after 46 (it) development.
The first flight was not a very long one. Wilbur flew the plane or 59 47 (second) over a distance of 852 feet. There were only five eyewitnesses(目击者) to the flight,but 48 (luck), one phot