《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
Foam
When air is trapped in liquid, foam is created. Where is the foam found? Is it desirable, or not desirable? Does it last for a long time, or does it disappear quickly?
This week's topic: The foam rises to the top... (90-110 words)

Suggestions:
1) foam is created when a drink is poured
2) plastic foam used to wrap fragile items
3) a foam mattress
4) a foamy bubble bath
5) Instead of writing a scenario, feel free to comment on the story below.

范例1：

Al cleared this throat slightly to make his presence known. The seated man turned around. The view which greeted standing figure was completely unexpected, and he could not help but laugh. Al was rarely surprised; he was trained to expect the unexpected. He, however, was surprised this time. The seated young man had a white foam mustache from his latte. On top of that, his confused expression was just too funny. In his line of work, Al had not laughed wholeheartedly for a long time. “My apologies. I thought you might have dropped this,” Al said while handing back the key card. Latte Mustache gratefully accepted it.

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