题目内容
There are two faces of nature. One is good while the 48 is bad. It all depends on 49 you look at it. I believe that nature is man’s friend and we should treat it 50 a great deal of respect. 51 trip to the mountains on the weekend will give you a glimpse at how beautiful nature is and can be.
Unfortunately, due to our busy lives, many of us take this beauty for granted. We keep spoiling our environment instead of protecting 52 . Polluting the air, cutting down trees, and building more and more factories are just a few examples showing how much damage we have done to our health. Because of the harm 53 was caused by humans, nature has turn on (attacked suddenly) us. 54 a result, storms and landslides are taking place more than ever before. If we don’t take the time to protect our environment, nature will no longer be our friend, 55 our biggest enemy.
48.other 49.how 50. with 51.A 52.it 53.which/that 54.As 55.but