By Elizabeth Dilts Marshall NEW YORK (Reuters) – Global shares rose on Friday as Wall Street rallied to end a volatile week of trading, while oil jumped 4% on the back of record-high U.S. gas prices. Global markets and U.S. stocks were down sharply most of this week as investors grew anxious about the possibility of recession. The S&P 500 index is off nearly 20% from its all-time high in January and was close to a bear market on Thursday. [.N] But investors’ fears over whether U.S. Federal Reserve Chair Jerome Powell can accomplish a “soft landing” – bringing inflation down while keeping the U…