ght language in different situations.然而,学习如何在不同的场合使用正确的语言很重要。Рit作形式主语【梳理】在英语中, 如果主语是较长的动词不定式或一个句子, 为了保持句子结构的平衡, 避免头重脚轻, 通常用it作形式主语放在句首, 而把真正的主语放在句尾。常见的句型有:Р1) It is + adj. (for sb.) + to do sth.常用于此句型的形容词有important, difficult, dangerous, necessary, useful, possible等, 用来对to do sth. 进行说明。РIt’s difficult for us to finish the work in an hour. 在一小时内完成这项工作对我们来说有困难。Р2) It is + adj. of sb. + to do sth. Р常用于此句型的形容词有good, kind, nice, clever, wise等, 用来对sb.的性格、品质等进行说明。РIt’s kind of you to say so.你这样说真是太好了。Р7)Read the text again and recite the expressions.РStep III:PracticeР 1.对他来说,回答那个问题是十分困难的。Р It’s very hard ____ him ____ _______ that question.Р 2.你这样说真是太好了。РIt’s very kind ____ you ____ ____ so.РStep IV:Summary Р How to make polite requests.РStep V:HomeworkР Finish the exercises in Self Check.Р 教后感悟
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