假设题如何取非

lawyer_1

取非意思就是假如某个选项是错的。

大体有三种情况：

1. all----not all/some---none/always----not always/sometimes----never/everywhere---not everywhere/somewhere---nowhere/only one, exactly one---none, more than one/at least one, some---none

2. 对于选项为条件句，将必要条件取非。

3. 直接将谓语肯定变否定，或否定变肯定。

[此贴子已经被作者于2004-11-4 4:32:38编辑过]

lawyer_1

if you  get a high score of GMAT, you will be accepted by Harvard University.

取非为：if you  get a high score of GMAT, you will NOT be accepted by Harvard University