In a large saucepan, bring 1 cup water to a boil. Add asparagus; cook, covered, until crisp-tender, 3-5 minutes. Drain; place in a large bowl. Add tomatoes; cover and keep warm. , Place vinegar, Worcestershire sauce, sugar, onion, salt and paprika in a blender; cover and process until smooth. While processing, gradually add oil in a steady stream. Toss with asparagus mixture. Top with almonds and, if desired, cheese.