《英文天天写》是沪江部落一档写作类节目，其目的在于提升大家的英语写作能力。每期节目主持人都会给出一个话题，积极参加的童鞋还会得到主持人的专业点评哦！想提高英语写作的童鞋千万不要错过哦！去沪江部落订阅本节目！

话题：

Writing: imagine a scenario or express your opinion
Color Change
When the color changes, it can be a warning for danger ahead, or an indication for safety. What is the purpose of the color change? Who or what is affected? What will be the outcome?
This week's topic: The color gradually changed... (90-110 words)

Suggestions:
1) a reptile changes color to camouflage itself from predators
2) the light changes from red to green, or green to red, at a traffic intersection
3) the silver needle turned black when the food was tested for poison
4) fun accessories change color due to temperature fluctuation
5) Instead of writing a scenario, feel free to comment on the story below. What will happen next?

范例1：

The beep rang in his ears as the light on the security pad changed from red to green, a sound he normally did not pay much attention to. He reached out and opened the door. The office area was completely still. Because the surrounding was so quiet, he could hear the printer hard at work in a room nearby. 'Toxicology Laboratory' read the sign on the door. Spitting out one last page, the printer came to a stop just when Sean walked in. He picked up the pile of paper, turning it over and started to scan through the first few pages when suddenly, his phone rang.

想要得到专业主持人的点评和意见吗？快来节目现场一试身手吧>>