专题06 It易错点解题方法-2020年高考英语词汇语法易错点解题方法（上）

专题06 It易错点解题方法 It在英语中用法很广。It 可以用作人称代词，也可以用作非人称代词，可作主语也可作宾语。表示时间，地点，日期，天气，距离，温度等。 It的主要用法有3：1)代词; 2)形式主语；形式宾语。3)强调句It. 看下列句子中的It的用法，你能辨别吗？ 1. It is Friday today. 2. It was very cold last Monday. 3. It is about 8:30 now. 4. It is 25km from my home to our school. 5. It lies in the south of Xi'an city. 6. It is 40°C ! You got a high fever! 7. It is 5 yuan. Question: What does “it” in these sentences refer to? It refers to the following: 1 date；2 weather；3 time；4 distance； 5 place； 6 temperature；7 price 看懂啦吗？ It 可以用作非人称代词，作主语。表示1 date；2 weather；3 time；4 distance； 5 place； 6 temperature；7 price 等。 Read and analyze the following sentences.What does “it” in these sentences refer to? 1. It is obvious that the water was to blame. 2. It is true that he will treat me for breakfast tomorrow. [答案]:it是形式主语。 [解析]：it是形式主语, 句子真正的主语是that引导的主语从句. 牢记以下常用于该句型的形容词: It is clear /obvious /true /possible /certain /amazing /ridiculous /necessary /important /strange /natural /impossible /urgent等+ that从句. 思考：为什么要用it做形式主语而把真正主语放到后面去？ 遵循英语语言的平衡原则，避免句子头重脚轻。 It’s necessary/strange/natural/ important/a pity/no wonder/impossible + that Clause 从句中的动词要用虚拟, 即(should)+动词原形 Read and analyze the following sentences. What is the use of “it” in each sentence? S1. A mouse barked like a dog and drove a cat away , so he said to his son “ I think it important to learn a foreign language.” S2. We think it our duty to clean our classroom every day. [答案]:S1与S2句型中的it是形式宾语。 [解析]：.真正宾语是不定式短语to learn a foreign language/to clean our classroom every day.真正宾语的三种形式：不定式短语；动名词短语；that引导的宾语从句。 It用于强调句型中: It + be + 被强调部分 + that/who(a person)+ 原句剩余部分。 例：原句 I met Tom in the park yesterday. 强调句：1) It was I who met Tom in the park yesterday. 2) It was Tom who I met in the park yesterday.3) It was in the park that I met Tom yesterday.4) It was yesterday that I met Tom in the park. 看下列例题： 1. Everyone knows that _______ is dangerous to play with fire, but _______ is difficult is to prevent children from playing with fire.