[填空题]In November 1965, New York was blacked out by an electricity failure. The{{U}} (36) {{/U}}promised that it would not happen again. Pessimists were certain that it would occur again within five years at the latest. In July 1977, there was a repeat performance which, produced varying degrees of{{U}} (37) {{/U}} throughout the city of eight million people. In 1965, the failure occurred in the cool autumn and at a time of {{U}} (38) {{/U}}. In 1977, the disaster was much more serious because it came when un-employment was high and the city was suffering from one of its worst heat waves. In 1965, there was little crime or looting during the darkness, and fewer than a hundred people{{U}} (39) {{/U}}.In 1977, hundreds of stores were broken into and looted. Looters{{U}} (40) {{/U}}shop windows and helped themselves to{{U}} (41) {{/U}}, clothes or television sets. Nearly 4,000 people were arrested but far more disappeared into the darkness of the night. The number of policemen{{U}