题目内容：

Ice Bucket Challenge

Have you every heard of ALS Ice Bucket Challenge? Certainly you do. It is an activity held by an American charity. It not only helps the ALS patient to get the money to treat their disease, but also makes more and more people know about the disease, so that they can give more care to the patients.

Ice Bucket Challenge became popular on social media during July-August, 2014, in the US. The organizer holds the activity to make people experience ALS patients’ pain. In the activity, people need to pour the ice water down from their heads, and then nominate another three people to take part in the challenge. Within 24 hours, they can choose to accept the challenge, or donate 100 dollars, or do the both.

ALS make people’s muscle become hard. So it is hard for the patients to move. Stephen Hocking, a famous British physicist, is one of the patients. This activity makes people know about the illness and the pain that the patients suffer. Ice Bucket Challenge is a great success, until now, a big donation has been received. I hope more and more people can take part in charity activities like ALS Bucket Challenge and do what we can to help those patients recover soon.

Note: ALS-肌萎缩侧索硬化，也叫运动神经元病

回答西面5个问题，每题答案不超过7个词。

1.What is ALS Ice Bucket Challenge?

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2.When did ALS Ice Bucket Challenge become popular?

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3.How much will the person donate if he or she does not accept the challenge?

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4.Why is it hard for ALS patients to move?

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5.Why does the organizer hold Ice Bucket Challenge?

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