The Battle of Chancellorsville, one of the most famous battles of the Civil War, took place in Virginia in the spring of 1863. For months, the two armies had been staying on opposite banks of a narrow river. The Confederate（南方联盟） troops were led by perhaps (21) _______ (honored) military tactician（战略家） in American history, General Robert E. Lee. The Union （北方联盟）soldiers were led by "Fighting" Joe Hooker.

　　In appearance, personality, and lifestyle, these men were nearly perfect opposites. Lee, an older man in poor health with a gray beard, had a solemn, measured character. Hooker was a blond, broad-shouldered young man (22) _______ pride over his appearance was but one aspect of his self-centeredness. Whereas Lee was loyal and principled, Hooker was known for his rollicking enjoyment of both women and whiskey.

　　Despite the fact that the Confederacy (23) _______ (win) the last four major battles and the Union soldiers were starving, (24) _______ (exhaust), and demoralized, Hooker proclaimed, "My plans are perfect. And when I start to carry them out, (25) _______ God have mercy on Bobby Lee, for I shall have none." Why was Hooker so confident?

　　Hooker had used spies, analysts, and even hot air balloons to compile a vast amount of intelligence about Lee's army. He had already been aware, for example, (26) _______ Lee had only 61,000 men to Hooker's own 134,000. Supported by his superior numbers, Hooker secretly moved 70,000 of his men fifteen miles up and across the river, and then ordered them to sneak back down to position themselves (27) _______ Lee's army. In effect, Hooker had cut off the Confederate soldiers in front and behind. They were trapped. Satisfied with his advantage, Hooker became convinced that Lee's only option was to retreat to Richmond, thus (28) _______ (assure) a Union victory.

Yet Lee, despite his disadvantages of both numbers and position, did not retreat. Instead, he moved his troops into position to attack. Union soldiers who tried to warn Hooker that Lee was on the offensive (29) _______ (dismiss) as cowards. Having become convinced that Lee had no choice but (30) _______ (retreat), Hooker began to ignore reality. When Lee's army attacked the Union soldiers at 5:00 p.m., they were eating supper, completely unprepared for battle. They abandoned their rifles and fled as Lee's troops came shrieking out of the brush, bayonets drawn. Against all odds, Lee won the Battle of Chancellorsville, and Hooker's forces withdrew in defeat.