四川省2015高考英语人教版一轮讲义：必修4 Unit 2（2）
Dr Yuan grows what is called super hybrid rice.
袁博士种植的是被称为“超级杂交水稻”的稻种。
what is called super hybrid rice用做grows的宾语从句。名词性从句中缺少主语、宾语、表语成分时，用关系代词what连接。
①After a hard time，they came to what_is_called America today.
艰难的努力后他们来到了现在称作美洲的地方。
②We now live in what is called the Information Age.
我们现在生活在一个信息时
