高中英语 Unit 3 A healthy life Section Ⅲ Grammar教学案 新人教版选修6-新人教版高二选修6英语教学案

Section Ⅲ Grammar——it 的用法(一)课前语法感知Ⅰ.教材语法感知教材原句①It seems amazing that at my age I am still fit enough to cycle 20 kilometers in an afternoon.②It's my birthday in two weeks' time and I'll be 82 years old!③Your mother tells me that you started smoking some time ago and now you are finding it difficult to give it up.④I know how easy it is to begin smoking and how tough it is to stop.⑤Get help if you need it!探究发现(1)it 用法广泛，可以是代词，用来表示时间、天气、距离等，如例句②中 it 指时间，例句③中的第二个 it 指代 smoking，例句⑤中 it 指代 help。(2)it 可以作形式主语或宾语，如例句①中 it 作形式主语，真正的主语是后边的 that从句。例句③中第一个 it 作形式宾语，真正的宾语是后边的动词不定式。例句④中的两个it 都作形式主语。Ⅱ.真题语法感知1．(2018·浙江高考)Many westerners who come to China cook much less than in their own countries once they realize how cheap ________ can be to eat out.答案：it2．(2018·江苏高考)Well, ________ is really great to be back at university again.答案：it3．(2017·全国卷Ⅰ)I then made ________ a point to attend those meetings and learn all I could.答案：it4．(2015·北京高考)Once the damage is done, __________will take many years for the farmland to recover.答案：it5．(2015·浙江高考)Close to the school there was a beautiful park with many trees around ________.答案：it课堂合作探究名师点津(1)it 还可在答语中代替指示代词 this 和 that。—Whose dictionary is that?—It's mine.——那是谁的词典？——我的。(2)it 用 于 某 些 表 示 喜 怒 哀 乐 的 动 词 ( 如 like, enjoy, love, prefer, hate, appreciate 等)后作形式宾语，真正的宾语常为 when, that 和 if 等引导的从句。I hate it when people talk with their mouths full of food.我讨厌人们满口食物说话。【即景活用】(1)单句语法填空①Someone is knocking at the door. Who might ...