三特殊句式
1. 强调
1)助动词(do/does/did)+动词原形
I do like you. / she does hate me.
2) 强调句型
It is/was/+强调内容+that/who +其它成分
判断强调句型：去掉It is/was和that/who，句子成分完整。
Eg: She bought a book yesterday in my store.
(强调句1)It was she who /that bought a book yesterday in my store.
(强调句2)It was a book that she bought yesterday in my store.
2. 倒装： 完全倒装/部分倒装
完全倒装
1)强调宾语或者表语时
正常语序：she is beautiful.
Beautiful is she./ As beautiful is she, she can have more choices than others.
总结：完全倒装的识别：谓语动词完全放在主语前面。
部分倒装：
1)否定词放句首时： Never had I been to your hometown.
2) Only引导的状语或者状语从句放句首时: Only in this way, can I study english well.
总结：部分倒装的识别：助动词(do/does/did)情态动词(can/could/would/should/may/might/must/will)放主语前+剩余的动词部分+其他成分
3. 形式主语
It is+形容词+that从句/to do短语(真正的主语)
4. 形式宾语(it/them…)
5. 指代： it/ that/these/those/ such +名词
