第五讲名词性从句从属连词 that, whether 与 if 引导的名词性从句[全析考法] 单句语法填空/单句改错1.(2018·11 月浙江高考)It is possible ________ caffeine may cause birth defects (缺陷) in humans, too.解析:that 分析句子结构可知,该句是一个主从复合句,it 作形式主语,that 从句为真正的主语。2.(2017·天津高考改编)She asked me________ I had returned the books to the library, and I admitted that I hadn't.解析:whether/if 句意:她问我是否已经把书还给图书馆了,我承认说我还没有还。分析句子结构可知,空格处引导宾语从句,且在从句中不作任何成分,只起连接作用;又根据句意可知此处表示“是否”,故用 whether 或 if 引导宾语从句。3 . (2016· 北 京 高 考 改 编 )The most pleasant thing of the rainy season is________ one can be entirely free from dust.解析:that 句意:雨季最令人高兴的事情就是人们可以完全远离灰尘。分析句子结构可知,本句包含一个表语从句,且表语从句中句子结构完整,故使用 that 引导表语从句,that 在表语从句中不作句子成分,只起连接作用。4.(2016·天津高考改编)The manager put forward a suggestion ________ we should have an assistant. There is too much work to do.解析:that 句意:经理提出了一个建议,我们应该有一个助手。工作太多了。分析句子结构可知,空处引导同位语从句,解释说明 suggestion 的具体内容,故填 that。5.(2016·江苏高考改编)It is often the case________ anything is possible for those who hang on to hope.解析:that 句意:通常情况下,对于那些坚持希望的人来说,一切皆有可能。空处引导主语从句,从句中不缺少任何成分且意思完整,故使用 that 引导。6.(2015·全国卷Ⅱ)After looking at the toy for some time, he turned around and found where his parents were missing.________________解析:where→that 或去掉 where found 后是一个宾语从句,不缺少句子成分且句意完整,所以不能用 where,应该用 that 引导,that 也可省略。[谨记规则](一)that 引导的名词性从句that 引导名词性从句时本身无意义,只起连接作用,也不在句中作任何成分。它引导的名词性从句结构和意义都完整,...