His writing is so confusing that it is difficult to make out ___it is he is trying to express.是不是强调句型运用到宾语从句的情况这是一个强调句型运用到宾语从句中的省略题型，在it is 后省略了that.

His writing is so confusing that it is difficult to make out ___it is he is trying to express.是不是强调句型运用到宾语从句的情况这是一个强调句型运用到宾语从句中的省略题型，在it is 后省略了that.
His writing is so confusing that it is difficult to make out ___it is he is trying to express.
是不是强调句型运用到宾语从句的情况
这是一个强调句型运用到宾语从句中的省略题型，在it is 后省略了that.

His writing is so confusing that it is difficult to make out ___it is he is trying to express.是不是强调句型运用到宾语从句的情况这是一个强调句型运用到宾语从句中的省略题型，在it is 后省略了that.
这里有三重句式,第一重：so...that...引导的结果状语从句,第二重：It is +形容词+to do sth 句型；第三重：___it is he is trying to express.不是强调句,应该是表语从句,作make out的宾语

这不是强调句型啊
so....that 引导的结果状语从句
他的书写很混乱，以至于很难分辨他想表达什么

这句话中有几种句式合用，第一种：“如此。。。。。。以至于。。。。”so...that...引导的结果状语从句，第二种：“做某事是怎么样的”It is +形容词+to do sth 句型；第三种：___it is he is trying to express.不是强调句，应该是表语从句，作make out的宾语

选什么 His writing is so confusing that it’s difficult to make out (what) he is trying to express.

33.His writing is so confusing that it’s difficult to make out _____it is he is trying to express.
A. that\x09 B. how\x09 C. who\x09 D. what
答案：D. what
句子结...

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33.His writing is so confusing that it’s difficult to make out _____it is he is trying to express.
A. that\x09 B. how\x09 C. who\x09 D. what
答案：D. what
句子结构分析：
第一层：这是一个含有由that引导的结果状语从句的主从复合句。
His writing is so confusing that it’s difficult to make out what it is he is trying to express.
S L P A Cl.（结果）
第二层：结果状语从句的结构是：
that it ’ s difficult to make out what it is he is trying to express
引导词 S(f) L P S(r)
第三层：在真正的主语中，有一个由what引导的宾语从句。其结构式是：
to make out what it is he is trying to express
to do O Cl.
第四层：在what引导的宾语从句中，有一个强调句式it is ... that...，只是that被省略了。
what it is he is trying to express
= what it is that he is trying to express
= it is what that he is trying to express(被强调部分是宾语what)
分析成分时，我们把强调句式it is ... that...这三个字拿掉，就成了：
what he is trying to express
what 是因为起引导作用而被提前了，还原其位置应该是：he is trying to express what
分析： he is trying to express what
S V O
在宾语中， to express what
中心词 O
这里关键是：强调句式中的that能不能省略的问题。我说可以省略的依据是：
《大学英语语法 第四版》(徐广联主编；华东理工大学出版社)PP. 903-904上有讲解和例句，现摘录几个共享：
1. It is me (that / whom) she gave the book to.
2. It is fame (that) he is seeking.
3. Who is it (that) you want to see?
4. Where was it (that) you saw the man?
整句译文：他写的东西很乱，很难弄明白想表达啥。
好了，就回答到这里，不知能不能让你满意，有疑惑我们可以继续探讨。另外，由于百度这里的文字格式输入的限制，我没有办法给你画出整个句子的结构图，望谅解。

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