Ⅴ.短文填空。
can, help, ground, rather than, encourage, by, plant, we, off, unless
There are many ways to save the environment if you would like. In this passage, you can find some ways.
Plant more trees. Choose a right 46. near your house or workplace. 47. there’s any rule stopping you growing trees in that area, go ahead and grow trees.Plant a tree every month and 48. your friends and classmates to join you. Have more and more trees 49. and there will be a day when you have green land thanks to your hard work.
Walk more and drive less. Choose to walk 50. drive your car. Walk or ride a bicycle to work if it’s not very far.Not only cycling but walking is good exer-cise.And each time you avoid using your car, you’re doing something 51. to cut down air pollution. You are saving fuel, saving money and keeping fit as well.
Save water. Water is very important for living things.It’s 52. who use and pollute it.The simplest way to save water is turning 53. water taps after use. When you visit a beach, make sure that you don’t throw waste around.Do not pollute rivers 54. dropping garbage or other waste. Water is so precious(宝贵的), so we 55. waste or pollute it.

46.ground 47.Unless 48.encourage 49.planted 50.rather than 51.helpful 52.we 53.off 54.by 55.can't