神马作文网Unit2(理解题)
来源：学生作业帮 编辑：神马作文网作业帮 分类：英语作业 时间：2024/11/18 04:13:37
The reason that i plan to go is that she will be disappointed if i don,t that为何不用why代替
解题思路： 理解题
解题过程：
准确判断先行词在定语从句中的成分（主、谓、宾、定、状），也能正确选择出关系代词/关系副词。
并不是遇到所有reason做先行词的情况后面的引导词都是选择why，而是应该判断定语从句部分所缺的成分，如从句缺少主语，宾语，表语，定语则引导词选择关系代词，如果缺少地点状语，时间状语和原因状语则引导词选择关系副词，如：
①Do you know the reason why he was late?
该句子定语从句部分he做主语，is 为系动词，late做了表语，所以从句部分缺少状语，先行词reason是表原因的名词，所以从句用关系副词why引导
②This is the reason why he didn’t come to the meeting.
该句子定语从句部分he 做主语，come to 动词短语做谓语，the meeting做宾语，所以从句部分缺少状语，先行词reason是表原因的名词，所以从句用关系副词why引导
③The reason which he gave is acceptable.
该句子定语从句部分he做主语，gave做谓语，缺少宾语，所以引导词选择关系代词which，此处还可以用that来替换which，又因为在从句中做宾语还可以省略that或which.
另外：
(1) the reason why…is/ was that……是一个惯用句型，意为“…的原因是…”
why引导的是定语从句，修饰先行词the reason。that引导的是表语从句。
eg. The reason why I was late for school is that I forgot to set the clock last night.
我上学迟到的原因是我昨晚忘记了设置闹钟。
(2)
The reason why he could not go there was that his grades were too low.
他不能去那里的原因是他的成绩太低了。
原题干中I做主语，plan 做谓语， to go 是宾语，先行词the reason做从句的状语.所以应该用关系副词why,而不是that.
最终答案：略
解题过程：
准确判断先行词在定语从句中的成分（主、谓、宾、定、状），也能正确选择出关系代词/关系副词。
并不是遇到所有reason做先行词的情况后面的引导词都是选择why，而是应该判断定语从句部分所缺的成分，如从句缺少主语，宾语，表语，定语则引导词选择关系代词，如果缺少地点状语，时间状语和原因状语则引导词选择关系副词，如：
①Do you know the reason why he was late?
该句子定语从句部分he做主语，is 为系动词，late做了表语，所以从句部分缺少状语，先行词reason是表原因的名词，所以从句用关系副词why引导
②This is the reason why he didn’t come to the meeting.
该句子定语从句部分he 做主语，come to 动词短语做谓语，the meeting做宾语，所以从句部分缺少状语，先行词reason是表原因的名词，所以从句用关系副词why引导
③The reason which he gave is acceptable.
该句子定语从句部分he做主语，gave做谓语，缺少宾语，所以引导词选择关系代词which，此处还可以用that来替换which，又因为在从句中做宾语还可以省略that或which.
另外：
(1) the reason why…is/ was that……是一个惯用句型，意为“…的原因是…”
why引导的是定语从句，修饰先行词the reason。that引导的是表语从句。
eg. The reason why I was late for school is that I forgot to set the clock last night.
我上学迟到的原因是我昨晚忘记了设置闹钟。
(2)
The reason why he could not go there was that his grades were too low.
他不能去那里的原因是他的成绩太低了。
原题干中I做主语，plan 做谓语， to go 是宾语，先行词the reason做从句的状语.所以应该用关系副词why,而不是that.
最终答案：略