5. 其后不能直接跟if引导的从句，遇此情况需借助it，即说成I’d prefer it if…（我希望……）。如：
I would prefer it if you didn’t tell anyone. 我希望你别告诉任何人。
I would prefer that you did not mention my name. 我倒希望你不要提及我的名字。
比较以下同义表达：
我倒希望你不要一个人去那里。
正：I should prefer that you did not go there alone.
正：I should prefer it if you did not go there alone.
正：I should prefer you not to go there alone.
6. 若加强语气，可在其前使用much, very much, far等修饰语。如：
I far prefer swimming to cycling. 我喜欢游泳远胜于骑自行车。
We much prefer the country to the town. 我们喜欢乡下，不怎么喜欢城里。