人教版高一英语必修三unit1FestivalsaroundtheWorldgrammar学案

学科 英语 年级/册 必修三 教材版本 人教版 课题名称 Unit 1 Festivals around the World 难点名称 "be+adj.+to do"主动形式表被动意义 难点分析 从知识角度分析为 什么难 哪些句型中可以用主动形式表达被动的意义 忽略不及物动词后介词 从学生角度分析为 什么难 习惯于用被动的形式来表达被动的意义 分析用于这个句型中的形容词 难点教学方法 通过更多例句的反复练习，及旧知识点的迁移，判断哪些形容词可 以用于这个句型中。 通过观察，归纳，练习来改变学生的习惯性思维，知道可以用不定 式主动形式来表达被动的意义。 教学环节 教学过程 导入 之前我们学习过被动语态的结构，be+done(动词的过去分词)，那 我们能否不用被动的形式而用主动的形式来表达被动的意义呢，今 天让我们一起来探讨一下这个句型：主语+be+形容词+to do 知识讲解 （难点突破） Step 1 翻译这些句子，体会动词和句子主语之间的关系. ①The qestion is easy to answer. ②The task will be impossible to complete. ③Beijin is pleasant to visit. ④School rules are important to observe. Step 2 如果动词为不及物动词，介词不能省略。 ⑤The babies are difficult to take care of.. ⑥The armchair was comfortable to sit in. ⑦The speech contest is exciting to take part in. 小结：用动词的不定式的主动形式表达被动的意义，可以用 it is+adj+to do sth 来检测。 Step 3 能用于此种句型中的形容词具有什么特点。 ①The qestion is easy to answer. ②The task will be impossible to complete. ③Beijin is pleasant to visit. ④School rules are important to observe. ⑤The babies are difficult to take care of.. ⑥The armchair was comfortable to sit in. ⑦The speech contest is exciting to take part in. 小结：描述事物的特征或性质 Step 4 判断下面的形容词能否用于这种句型中。 ⑧He is pleased to attend her party. ⑨I am sorry to hear that. ⑩The boy is satisfied to be admitted into a key university. The patients were angry to be treated badly in the hospital. 小结：像 pleased, delighted, glad, sorry, satisfied, disappointed 等表示 心理状态的形容词不适用于这个句型 Step 5 如何判断哪些句型可以用主动形式来表达被动的意义。 Beijing is pleasant to visit. It is pleasant to visit Beijing. The armchair was comfortable to sit in. It is comfortable to sit in the armchair. The speech contest is exciting to take part in. It is exciting to take part in the speech contest. 课堂练习 （难点巩固） 语法填空 1. The cake is easy ________(make). 2. I am glad ________(invite) to your birthday party. 3. The apple is hard _________(reach). 4. The boss was hard to get along ________. 5. He is grateful to be taken care_____. 小结 我们今天学习了主语+be+形容词+to do 的句型，用主动形式表达被 动的意义，那么必须满足的条件是动词和主语之间是动宾关系，形 容词是 easy, hard, difficult, impossible 等表示事物特征或性质的形 容词，也可以用 it is +adj +to do sth 来检测是否符合这个句型。