从以上的课文用法中，我们可以总结出so和neither引导的倒装句的用法：

1、so用于肯定句，neither用于否定句。

2、so和neither在句子中的用法是相同的，其结构为：

so/neither + 情态动词或助动词或系动词be + 主语 + 句号

so/neither + 情态动词或助动词或系动词be + 主语 + 句号

需要注意的是，so和neither引导的倒装句，既可以位于句首开头，也可以也可以由并列连词连接，作为并列句紧跟前句。如：

He reads a lot and so does she.

He doesn't read a lot and neither does she.

He reads a lot and so does she.

He doesn't read a lot and neither does she.

在实际使用过程中，需要注意以下几点：

1、到底使用so还是neither取决于前句话是肯定句还是否定句；

2、无论前句话是肯定句还是否定句，so和neither引导的倒装句都是肯定句，由neither引导的倒装句不能再加not；

3、倒装句中的情态动词或助动词或系动词be如何选择，取决于前句话中是否还有这三类辅助动词，而这些辅助动词中的助动词或系动词be的单复数取决于倒装句句末主语的单复数。

1、到底使用so还是neither取决于前句话是肯定句还是否定句；

2、无论前句话是肯定句还是否定句，so和neither引导的倒装句都是肯定句，由neither引导的倒装句不能再加not；

3、倒装句中的情态动词或助动词或系动词be如何选择，取决于前句话中是否还有这三类辅助动词，而这些辅助动词中的助动词或系动词be的单复数取决于倒装句句末主语的单复数。

接下来我们看一些例句：

1、do/does/did

2、have/has/had

3、will

4、can或must

5、be

以上并未穷尽所有助动词或情态动词或系动词be的用法，但只要掌握基本的方法，就能正确使用了。下面我们就来做个小测试，请大家把下面句子中粗体部分的句子改为由so或neither引导的倒装句：

1. They ran quickly. We ran quickly, too.

2. He was late. We were late, too.

3. He can speak French. She can speak French, too.

4. He doesn't like apples. She doesn't like apples, either.

5. You can't talk loudly in the library. We can't talk loudly in the library, either.

6. We haven't been to London before. She hasn't been to London before, either.

1. They ran quickly. We ran quickly, too.

2. He was late. We were late, too.

3. He can speak French. She can speak French, too.

4. He doesn't like apples. She doesn't like apples, either.

5. You can't talk loudly in the library. We can't talk loudly in the library, either.

6. We haven't been to London before. She hasn't been to London before, either.

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