Heat 3 cups of the peanut oil in a large pot to deep-fry temperature (350 degrees F), and fry the beans in batches until tender but still crisp, 2 to 3 minutes. Use a slotted spoon to transfer beans to paper towels to drain.
Heat the remaining 3 tablespoons oil in a wok or large skillet. Add the scallions and garlic and cook just long enough to release the aromas, about 1 minute. Add the shrimp and green beans and mix well to coat the beans. Stir in the water, soy sauce, sugar, salt and pepper, and cook for another 1 to 2 minutes, tossing to heat through. Serve immediately.
c.1997, M.S. Milliken & S. Feniger, all rights reserved