ning.句中price和yield的用法均不常见，可将price …high解释成raise the price，yield little in the bargaining可解释成refuse to give in in the bargining。

句2：what now seems to be in the air is a multilateral deal between the seven countries involved in ocean-mining. 句中in the air是理解的难点，如果解释成uncertain，学生就会觉得既形象又容易理解。

2. 教会学生用多种方式来表达同一个意思，有助于发散思维的培养和提高语言运用能力。例如：

句1：the availability of foreign currency is important in international trade. →whether foreign currency is available or not is important in international trade.

句2：the acceptability of the proposal is still unknown. →whether the proposal is acceptable or not is still unknown.

3. 鼓励学生用自己的语言概括句群、段落、文章的大意，既能帮助他们更好的理解原文，又能强化他们使用英语的能力。

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