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课件网) Period 2 Learning About Language The infinitive of the verb as the predicative Unit 1 Art 1.Enable the Students to master the usage of the infinitive of the verb as the predicative. 2.Enable the Students to use the relevant grammar flexibly and authentically in the real situation. Learning Aims 观察课文例句，总结to do sth. 的用法。 1. Perhaps the best way to understand Western art is to look at the development of Western painting over the centuries. 2.During the Middle Ages, the purpose of Western art was to teach people about Christianity. 3. In this work, Monet's aim was to convey the light and movement in the scene. 动词不定式在句子中作表语。 Lead in 基本构成 定义 To do sth 不定式 相当于名词、形容词、副词。充当主语、宾语、定语、表语、宾语补足语、状语。 二 Infinitives as the predicative 动词不定式作表语 What is a predicative 表语常由名词、形容词、副词、介词短语、动名词、不定式、从句来充当，是指说明主语的身份、性质、品性、特征和状态的词或从句，常位于系动词之后 example sentences: She looks much younger in her red dress. They seem to have misunderstood me. The meat will stay fresh for several days in the fridge. He never keeps angry for a long time. What is a copula 系动词，只称系动词，是用来辅助主语的动词。它本身有词义，但不能单独用作谓语，其后必须跟表语，构成系表结构说明主语的状况、性质、特征等情况。在英语中，系动词的功能主要是把表语(名词、形容词、某些副词、非谓词、介词短语、从句)和它的主语联系在一起，说明主语的性质、特征、品性或状态。它有自己的但不完全的词义，不能在句中独立作谓语，必须和后面的表语一起构成句子的谓语。 系动词分为五种 1、状态系动词 用来表示主语状态,只有be一词,而且主语不同，be的形式也不同，且有时态的变化。这是我们最常见的系动词。 She is very beautiful. 她非常漂亮。 2、持续系动词 用来表示主语继续或保持一种状况或态度,主要有keep, rest, remain, stay, lie, stand等 He always kept silent at meeting. 他开会时总保持沉默。 3、感官动词 感官动词主要有feel,sound,seem, smell, sound, taste,appear, look等 He looks tired. 他看起来很累。 It sounds to me as though there’s a tap running somewhere. 我好像听到某处水龙头流水的声音。 She felt as if her head were splitting. 她仿佛觉得她的头要裂开了。 The river appeared as if enveloped in smog. 那条河好像笼罩在烟雾之中。 4、变化系动词 这些系动词表示主语变成什么样,变化系动词主要有become, grow, turn, fall, get, go, come, run. He became mad after that. 自那之后,他疯了。 She grew rich within a short time. 她没多长时间就富了。 5、终止系动词 表示主语已终止动作,主要有prove, trun out, 表达"证实","变成"之意. The rumor proved false. 这谣言证实有假。 The search proved difficult. 搜查证实很难。 His plan turned out a success. 他的计划终于成功了。 动词不定式(短语)作表语的用法 1.主语是以aim, suggestion, duty, hope, idea, intention, plan, purpose, the way 等为中心的名词词组时,或者以what引导的名词性分句表示,一般用动词不定 式作表语说明主语的内容。 Our plan is to make better use of these materials. 我们的计划是更好地利用这些材料。 (2024·九省联考)Her job was to ... ...
