插入语起的主要作用就是对句中的某一部分解释、补充说明、总结;表明说话者的态度;强调。下面是SAT语法中插入语的灵活用法。SAT语法改进句子中插入语最大的解题原则就是，插入语删掉之后，整个句子结构仍然是完整的!
1.常用做插入语的介词短语：
in addition，in one’s opinion, in general, in a word，for example， as a result，on the contrary, on the other hand，as a matter of fact
His wife is my daughter, in other words, I am his mother-in-law.
2.动词V-ing用做插入语
Strictly speaking, considering, talking of, judging by, judging from
Judging by her clothes, she may comes from the Northern part.
3.常用做插入语的短句
I’m afraid, I think , I believe, this is to say, as we know , believe it or not，it seems,what’s more
Some animals are half-hibernate, that’s to say their sleep is not so deep.
4.常用做插入语的不定式
To be frank, to tell you the truth, to sum up, to start with
To sum up, because of various favorable conditions that we enjoy, there is no doubt that we will be able to catch up with the advanced countries.
5.常用做插入语的形容词或短语：
true，wonderful，excellent，strange to say，most important of all, sure等
Strange to say, he doesn’t receive my birthday gift.
6.常用做插入语的副词或短语：
indeed，or rather，frankly，personally, surely，fortunately，otherwise，honestly, probably
You'd better give me my book, otherwise I'll fail my test.
注意：插入语独立性比较强，基本上都会用标点符号隔开。(通常插入语前后都有逗号)
以上就是SAT语法中插入语的灵活用法，希望对大家有所帮助。更多SAT语法考试信息，尽在前程百利SAT考试站。
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