考点5.         by all means与by no means
by all means: used to give permission, 当然可以 
"May I borrow this book?" "By all means." 
by no means ( also not by any means ) not at all,决不 
It is by no means certain that we'll finish the project by June. 
This isn't the last we'll hear of it by any means. 
9.      【2010江苏】----Do you think their table tennis team will win the first place at the coming Asian Games?
----_________.Ours is much stronger than theirs.
A. Of course        B. It depends       
C. Don’t mention it   D. By no means
10.   【2011浙江】—Can I come and have a look at your new house?
—Yes, ______!
A. with pleasure         B. I like it             
C. I quite agree              D. by all means
考点6.         Why not? 和isn’t it?
“Why not ”is used to express agreement.用来表示同意,并不是问“为什么不可以?”
 
 
 
