选词填充 (1): looking for, look, outside, wings, check, step, controls, missed, skin, external EXTERIOR PREFLIGHT Once the pilot is satisfied that all of the paperwork is in order, he or she will move to the (1) _________ of the airplane and begin a physical (2) ________ of the machine. A pilot usually develops a specific flow, going from one thing to another, to help ensure that nothing is (3) _______. The kinds of things that the pilot will check include (4) ____________ dents, corrosion, dirt, ice or snow, and other things on the (5) ______ of the airplane, plus the operation of the various flight (6) __________ like ailerons, flaps, rudder, horizontal stabilizer, and other elements that may be specific to a particular airplane. The (7) __________ preflight also gives the pilot access to the fuel tanks, which in most cases reside inside the (8) ________. Perhaps most importantly, the pilot will check the propeller or propellers on the airplane. A final (9) _______ in most exterior preflights involves stepping perhaps 10-20m from the airplane to take a long (10) _______ to make sure that everything looks fine.