UNIT 3 Section Ⅱ Learning About Language（教师用书Word）-【状元桥·优质课堂】2023-2024学年新教材高中英语选择性必修第一册（人教

Section Ⅱ　Learning About Language 动词-ing形式作主语 ①(教材P26)Getting here is quite difficult, so apart from the Sam very few people have ever seen Sarek. ②(教材P26)For hundreds of years, looking after reindeer was a way of life for the Sam. ③To lie to your teacher was foolish. ④It was foolish of you to lie to your teacher. ⑤It's no use trying to persuade him to change his mind. [自我感知] 1．句　①②③④⑤　中黑体部分在句中均作　主语　。 2．根据句④⑤可知，动词不定式和动词-ing形式作主语时，可以用　it　作形式主语。 一、动词-ing的时态和语态(以do为例) 　　语态 时态　　　 主动语态 被动语态 一般式 doing being done 完成式 having done having been done ►Sometimes being punished may be a good thing. 有时被惩罚可能是一件好事。 ►Having been given a toy car as a gift made the boy laugh. 那男孩收到一辆玩具汽车作为礼物后笑了。 [即时训练1]——补全句子 (1)　Being exposed in the sun　(暴露在阳光下) for a long time does great harm to your skin. (2)　Having been bitten　(已经被咬了) by my dog made Linda refuse to play with me again. 二、句法功能 (一)动词-ing形式作主语 1．动词-ing形式作主语的功能及基本用法 动词-ing形式是动词的一种非谓语形式，包括现在分词和动名词两种。动名词在句中作主语、宾语、表语和定语，本单元重点讲解动名词(短语)作主语的情况。动名词作主语时，多表示经常性、习惯性的动作，通常置于句首，可以有自己的宾语、逻辑主语等。 ►Using cocaine increases the user's heart rate and blood pressure.使用可卡因会加快使用者的心率并使血压升高。 ►Wasting a person's time is the same as killing him for his property. 浪费别人的时间无异于谋财害命。 [易错精点] ①单个动名词(短语)作主语时，谓语动词用单数。②两个或两个以上动名词(短语)作主语时，表达相同意义的，谓语动词用单数；表达不同意义的，谓语动词用复数。 ►Going to bed early and getting up early is a good habit.早睡早起是一个好习惯。 ►Listening to the English tapes and watching English films are good ways to learn English. 听英文磁带和看英文电影是学英语的好方法。 2．形式主语it代替动名词作主语 此类句型常见的有： (1)It is＋adj.＋doing sth It is useless doing sth　做某事无用 It is worthwhile doing sth 做某事是值得的 (2)It is a waste of＋n.＋doing sth It's a waste of time doing sth 做某事是浪费时间 (3)It is no＋n.＋doing sth It's no good/no use/no fun doing sth 做某事没好处/没用/没意思 ►It is no use talking to him—he won't listen. 跟他谈没有用——他不会听的。 ►It is a waste of time talking about such useless things. 谈论这些没用的事情是在浪费时间。 [名师指津] 动名词作主语用it充当形式主语的情况很少，上述是最常见的句式结构。不定式作主语时，常用it充当形式主语。 [即时训练2]——单句语法填空 (1)　Learning　(learn) to think critically is