1. Discuss when they take place, what they celebrate and one thing that people do at that time. 讨论一下它们何时举行，庆祝什么事件，以及节日时人们所做的一件事。

[自主学习] take place "发生，举行"，相当于vi. 没有被动语态。指事先计划或预想到的事情的发生。

按计划会议在8点召开了。____________________________________ as planned.

在最近十年里，中国发生了巨大变化。

[问题探究] happen, break out, come about 的用法？

happen没有被动语态，指一切客观事物或情况的偶然或未能预见的发生。

例如：The accident happened yesterday. 事故发生在昨天。

美国发生了大地震。______________________________________________

break out仅用于负面场合，多指灾难、战争、疾病等现象突然发生。

例如：A fire broke out during the night. 火灾发生于夜间。

SARS broke out all over China in the spring of 2003. 2003年春中国各地爆发了非典。

come about属中性词语。可表达正面或负面事物的发生。

例如：Tell me how the accident came about, will you? 请告诉我事故发生的经过好吗？

The event came about as we had predicted it. 这事按我们预言的发生了。

2. They would starve if food was difficult to find, so they celebrated when they had food. 如果找不到食物，他们就会饿死，因此当他们找到食物时就会庆贺。

[自主学习] starve （1）vi.饿死 （2）vt.使饿死

①Many people starved to death because of the famine.

那次饥荒中有许多人饿死。

②____________________________________.他们在沙漠中因迷路而饿死。

③starve a man to death 使人饿死

④Boxers sometimes______________________________________________.

拳击手有时为了控制体重而绝食数日之久。

[短语拓展]

starve to death 饿死 starve to do 渴望干......

starve for 渴望...... starvation cure 断食疗法

3. They lit fires and made music because they thought these festivals would bring a year of plenty. 他们点燃篝火，奏起音乐，因为他们认为这些节日活动会带来丰收的一年。

[自主学习] plenty n 充足，大量，富裕 例如：