可以调换题型的作文【一】
主题句：Without hesitation, I dialed "120". It wasn't long before an ambulance arrived.
扩展句：1、One roommate brought a blanket for him.
2、Another supported him in the ambulance.
3、Our teacher insisted on giving him some money.
可以调换题型的作文【二】
【例句】
13.Don’t forget to bring your book！
to bring your book！
14.My mother is not in/at home.
My mother is.
【正确答案】13.Remember14.out
【规律分析】这部分要求掌握一些基本的反义词，然后通过否定反义词的方法达到肯定的目的。
可以调换题型的作文【三】
【例句】
11.We’re always busy with our work.
We seldom have 。
12.The boy is very young. The boy can’t understand it.
The boy isyoung understand it.
【正确答案】11.free/spare time12.too.。.to
【规律分析】这部分要求掌握一些惯用词组的用法，同时注意句子和词组间的互换往往会使得句子结构改变。
