英语句型分类：五大基本句型(6)

　　【解析】

　　两个意义相关的简单句合并为一个简单句。常见的方式有三类：①用both...and, not only...but also, either...or, neither...nor, not...but等连接词合并。由not only...but also, either...or, neither...nor等连接的并列主语，通常遵循就近原则，即谓语需根据后面的名词(词组)的单复数而定；②用too...to, enough to等含不定式结构合并；③用分词短语合并。

　　IV. 二合并一成复合句

　　由两个简单句合并成一个复合句，多把一个分句转换成一个从句。如：

　　19. "Did you sleep well last night?" David asked her. → David asked her if / whether she slept well last night.

　　20. I won't go with my brother, he thinks. → He doesn't think I will go with my brother.

　　21. Where does he live? I don't know. →I don't know where he lives.

　　【解析】构成宾语从句应注意三点：

　　①宾语从句的引导词是否缺少或用错；

　　②宾语从句语序是否是陈述句的语序；

　　③宾语从句的时态是否与主句谓语动词的时态相呼应。

　　【测试】按要求改写下列句子。每空限填一词。

　　1. There is a strong wind today.

　　It's very ________ today.

　　2. What's the weather like in America?

　　________ ________ the weather in America?

　　3. We must keep the noise under 50 dbs (分贝) here.

　　The noise must ________ ________ under 50 dbs here.

　　4. Wu Dong joined the League three years ago.

　　Wu Dong has ________ in the League ________ three years.

　　5. I didn't know what I should say.