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初英考点精讲 101 特殊句式 it句型【知识点微课课件】

日期:2024-05-16 科目:英语 类型:初中课件 查看:93次 大小:787472Byte 来源:二一课件通
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初英,考点,精讲,特殊,句式,it
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句法 (特殊句式———It句型) 激趣导入 It is an equal failing to trust everybody and trust nobody. 考点聚焦 1. 对于it的认识; 2. It的基本用法。 考点一 对于it的认识 知识梳理 It是个非常简单的单词,但其用法却很灵活。 It it还可以用于强调句型中,同时考查不同的类型的句子中it的用法。 在一些固定的it句型中还可以做形式主语和形式宾语等。 作为代词it本身有指代作用,在句中可以代指前面提到的时间,季节,以及提到的人或事物等。 知识梳理 考点二 It的基本用法 例1 :指代作用,It作句子的主语 It指前面已经提到过的人或事物,例如: What’s this? — It’s a chair. Who is it? — It’s me. 提示:it代替上文提及的原物(复数用they); It指时间、日期、季节、气候等,虚义。 It’s time to go to school. Let’s go. What is the date today? — It is Oct. 1st. It often snows in winter in Harbin. It指距离、情况等。虚义。例如: It is five kilometers from my home to the school. 从我家到学校有五千米。 It is very near from this shop to that. 从这个商店到那个商店很近。 It is a long way to the sea. 这离海很远。 Is it well with you? 你身体好吗? It is difficult to climb a mountain. 爬山是很艰难的。 It’s important to study English. 学习英语很重要。 知识梳理 考点二 It的基本用法 例2 :It 作形式主语,动词不定式,其结构为: It + 谓语 + 动词不定式,例如: It + 谓语 + 名词性从句 ,例如: It + 谓语 + 动名词短语,例如: It is dangerous playing with fire. 玩火是危险的。 It is no use learning without thinking. 学而不思则罔。 It is pity that you didn’t see that good film. 你没看到那部好电影真可惜。 It is said that he will be late today. 据说他今天会来晚。 整理:It is / was difficult (easy, hard, important, useful, possible, a pity, a pleasure…) to do sth. It took thousands of people many years to build the Great Wall. It takes sb. ... to do sth. 该句型中的不定式是真正的主语,it是形式主语,句型中的直接宾语是时间,常译为“做…要花费某人…“。例如: It is kind (adj)( of sb. ) to do sth. 该句型中的不定式短语是真正主语,如果不定式的逻辑主语是由 of引起,主句中的形容词必须是能表示逻辑主语特征的形容词。常见的有: bad , brave , careless, clever 等。例如: It is kind of you to say so. = You are kind to say so. It is necessary ( for sb. ) to do sth. 该句型与上一个同属一个句型, 如果不定式的逻辑主语是由for引起,主句中常见的形容词有:important, necessary,difficult 等。例如: It is important for her to come to the party. = It is important that she (should ) come to the party. 考点二 It的基本用法 知识梳理 例3 : It作形式宾语 It作形式宾语,代表其后所说的真正的宾语。例如: I find it not so difficult to learn a foreign language. 我发现学习一门外语并不难。 . 例4 : it 用于表示强调的句型中 it 用于表示强调的句型中。例如: It was here that I first met him. 我初次与他见面就在这儿。 It is English that Jim teaches us every Monday. Jim每个周一教我们学习英语。 仿照示例完成句子: To run in the morning is very good. → It is good to run in the morning. 1. To play basketball must be fun. → . ???? 4. To read a long word is difficult. → . 典例剖析 It must be fun to play basketball 方法点拨 同样这个句子,也应该把这句话句子中的主语to ... ...

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