大学英语六级改错指导：从句关系代词误用

考点例析：

例1：Doctor Brundtland says leprosy is no longer a disease that
requires life-long treatments by medical experts. Instead,
patients can take that is called a multi-drug therapy. S7._______

解析：本句中take后面的部分应该是做take的宾语，that不能既做take的宾语又连接宾语从句，所以应该把that改为what.

例2：There’s also convincing evidence which dyslexia is largely S5._______
inherited. It is now considered a chronic problem for some kids,
not just a “phase”. Scientists have also discarded another old
stereotype that almost all dyslexics are boys

解析：evidence后面是同谓语从句，解释说明evidence，所以应该将which改为that。

例3：Tobacco companies had encountered the reports, that purported 4.________
to show links between smoking and cancer and other serious diseases.

解析：这里是非限定性定语从句，又因为从句缺少主语，所以只能使用引导词which，故将that改为which。

例4：Which is new is the wholesale interest in reusing the past, 2._______
in recycling, in adaptive rehabilitation（复原）.

解析：此处是主语从句，从句中缺主语，应该使用what，所以将Which改为What。