语法突破 专题一 第5讲 名词性从句-【创新教程】2024高考英语总复习大一轮教师用书word（新教材，译林版）

第5讲　名词性从句　 ◆[考点一]　连接词　 　当名词性从句主干齐全，又不缺少状语时，用连接词引导。连接词有that，whether和if。 1．that引导的名词性从句that连接名词性从句，只起连接作用，不在从句中作成分。引导宾语从句时有时可以省略，引导主语从句，表语从句和同位语从句时不能省略。 The teacher informed us(that)we would have a test the next day. 老师告知我们第二天进行测试。 His plan is that he is going to buy a new car next year. 他的计划是明年买辆新车。 　(1)that引导宾语从句四种不能省略的情况： ①that从句作介词的宾语时 I don't know exactly where he lives，except that it's somewhere out in the wilds. 他具体住在哪里我不是很清楚，只知道是在郊区。 ②动词后跟有多个that引导的宾语从句时，只有第一个that可以省略，从第二个从句开始that不可省略。 He told me he had to leave and that he would be back soon. 他告诉我他不得不离开，他会马上回来。 ③宾语从句前有插入语时 We hope，on the contrary，that he will stay at home with us. 相反，我们希望他和我们一起待在家里。 ④that引导的从句位于句首时 That you don't like him is none of my business. 你不喜欢他不管我的事。 (2)that引导主语从句时，常用it作形式主语，常见句型有： ①It＋be＋形容词(necessary/right/likely/unlikely/wrong/important/certain等)＋that从句 It is wonderful that all of you have passed the difficult exam! 你们都通过了这次很难的考试真令人高兴！ ②It＋be＋名词(短语)(a pity/a shame/a surprise/no wonder等)＋that从句 It is a pity that you have missed the wonderful lecture. 你错过了这么精彩的演讲真遗憾。 ③It＋be＋过去分词(said/told/reported/decided等)＋that从句 It is suggested that the lab building (should) be built next year. 有人建议实验楼明年修建。 ④It＋特殊动词(seems/appears/happens/matters)＋that从句 It appears that they have made the same mistake. 好像他们犯了同样的错误。 (3)动词find，feel，think，consider，make，believe等后面有宾语补足语时，需用it作形式宾语而将that引导的宾语从句后置。 I think it necessary that we take plenty of boiled water every day. 我认为我们每天喝大量的开水是很有必要的。 2．whether与if引导的名词性从句 (1)whether引导的主语从句既可放在句首也可放在句末，但if引导的主语从句只能放在句末，且前面需用it作形式主语。 Whether it is true remains a question. 这是否是真的依然是个问题。 It is unknown if he will attend the meeting. 他是否会来参加会议还不清楚。 (2)whether与if引导宾语从句时，大多数情况下可以互换，后面直接跟or not时用whether，用于介词后引导宾语从句时也用whether。 We don't know whether or not she was ready. 我们不知道她是否准备好了。 (3)whether可引导表语从句和同位语从句，而if则不可以。 The question is whether it is worth doing. 问题是它是否值得做。 The question whether the work was worth doing had not been decided. 这项工作是否值得做的问题还没有确定。 单句语法填空 1．(2022·全国甲卷 )We c