2 tablespoons vegetable oil
  3 garlic cloves, minced
  1/2 pound large shrimp-shelled, deveined and cut into 1-inch pieces
  Salt
  1/2 pound green beans, thinly sliced 1/4 inch thick on an extreme diagonal
  1/4 cup chicken stock or low-sodium broth
  1 tablespoon Asian fish sauce
  Freshly ground pepper

Heat a wok until very hot. Add the vegetable oil and heat until shimmering. Add the garlic and stir-fry for 10 seconds. Add the shrimp and a pinch of salt and stir-fry until the shrimp are just beginning to turn pink, about 30 seconds. Add the green beans and 2 tablespoons of the stock and stir-fry until the beans soften slightly, about 3 minutes. Add the remaining 2 tablespoons of stock along with the fish sauce and a generous pinch of pepper and stir-fry until the shrimp are cooked through and the beans are crisp-tender, about 3 minutes longer. Serve right away.

recommended: defer adding shrimp until last minute or two

from http://www.foodandwine.com/recipes/december-2007-stir-fried-green-beans-with-shrimp-and-garlic