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课件网) Period 2 Learning About Language 1. To learn about the subject clauses. 2. To use the subject clauses properly. Learning aims Leading-in 观察它们的共同点: That you are coming to London is the best news I have heard this long time. 你将要来伦敦是这么久以来我听到的最好的消息。 Whether it will do us harm remains to be seen. 它是否对我们有害还要看一看。 (2021·山东卷)What he said in the speech showed an interesting opinion. 他在演讲中所说的展现了一个有趣的观点。 Whoever breaks this law deserves a fine. 触犯本法者应予以罚款。 Whichever (of you) comes in first will receive a prize. (你们中)谁先进来谁得奖。 一、主语从句的基本用法 1.主语从句的引导词 Grammar Subject clause 类别 例词 说明 从属连词 that, whether 两者在从句中均不作成分,只起连接作用;that无实义,whether表示“是否”。 连接代词 who, what, which, whoever, whatever等 在从句中作主语、宾语、表语、定语等成分。 连接副词 when, where, how, why等 在从句中作时间、地点、方式、原因状语等成分。 【用法归纳】 主语从句中连接词的选择技巧: (1)根据连接词在从句中所作的语法成分。 (2)根据连接词在从句中的意义。 eg. ① _____ struck me most in the movie was the father’s deep love for his son. ② It doesn’t matter _____ you pay by cash or credit card in this store. What whether 【即学即练】用whether, that, whoever填空 ①_____she became an artist may have been due to her father's influence. ②_____we will hold a party in the open air tomorrow depends on the weather. ③Every year,_____makes the most beautiful kite will win a prize in the Kite Festival. ④It remains to be seen _____ the newly formed committee’s policy can be put into practice. That Whether whoever whether 2.it作形式主语 【观察例句】 It's possible that he has been to Beijing. 他有可能去过北京。 It's a pity that you didn't attend the meeting. 你没参加这次会议太可惜了。 It seems that it is going to rain. 看起来好像要下雨。 It is important that he should know about this. 他应该知道此事是重要的。 It is suggested that the meeting be put off. 有人建议会议延期召开。 【用法归纳】 为保持句子平衡,常把主语从句后置,而用形式主语it代替。it作形式主语时常用于以下句型: 句型 说明 It+系动词+形容词+主语从句 常用于此句型的形容词有important, (un)likely,possible, necessary, natural, wrong等。 It+系动词+名词+主语从句 常用于此句型的名词有fact,idea,honour,question,pity等。 It+系动词+过去分词+主语从句 常用于此句型的过去分词,有known,proved,said,decided,suggested,thought等。 It+不及物动词+主语从句 常用于此句型的动词有appear,happen,seem,occur,matter等。 [名师点津] (1)在“It+be+过去分词+主语从句”结构中,过去分词若为suggested/ordered/required/advised等,主语从句中的谓语用“(should)do”。 (2)在“It+be+形容词+主语从句”结构中,若形容词为important/necessary/strange等,主语从句中的谓语用“(should)do”。 【即学即练】完成句子 ①很可惜你不能来参加我的生日聚会。 _____that you can't attend my birthday party. ②有人建议这位老人到乡村休息一下。 _____that the old man should go to the countrysi ... ...