21.	all                        all  both    …… not … =  not   both ……      不都…(部分否定)  every                     every

   * 人不都诚实。                   比较：* 人都不诚实。
     All men are not honest.                   　 No man is honest.
= Not all men are honest.                 　= All men are dishonest.

22.	that ….not + V  否定字 +…   but …..+ V         没有…不…               without + O.

   * 没有人不爱自己的孩子。
There is no one but loves his own child.
= There is no one that does not love his own child.
= There is no one without loving his own child.   = Everyone loves his own child.

23.	to + V  not +   Ving         不   (不定词、分词、动名词的否定都是在前面加not)         pp.

   * 他试着不再想她。                 * 没办法帮他忙，我就离开了。
 He tried not to think of her.             Not being able to help him, I just left.

24.	No +	n.	禁止…；反对…；不准…
		Ving

* 非公莫入。                           *禁止停车。　　　　　　　　　　　
No admittance except on business.　　　　　No parking.

25.	There is no + Ving	不可能…；没有人能…
	= It is impossible to + V

* 简直不知道会发生什么事。
 There is no telling what may happen.
= There is no way of telling what may happen.
= It is impossible to tell what may happen.  = No one can tell what may happen.

26.	not only A but (also)B	不但A而且B     ßB才是重点，所以动词与B一致
	= B as well as A

  * 不但怪你，也怪你的朋友。 Not only you but also your friend is to blame.
= Your friend as well as you is to blame.

27.	not A  but B	不是A而是B
	= B  not A

  * 我感兴趣的不是化学，而是物理。
     What I am interested in is not chemistry, but physics.
= What I am interested in is physics, not chemistry.

28.	人 + be above +	Ving	耻于…；不屑…
		n.

  * 她不屑发问。          She is above asking questions.

29.	the last + n.      最不可能的…；再怎么说也不会的…

  *他是最不可能出卖你的人。(他再怎么说也不会出卖你)
    He will be the last person to betray you.

30.	fail to + V	未能…	never fail to + V	一定…；务必…
	= be unable to + V		= V + without fail

* 他未能实时到达。                  *我一定会守信。
  He failed to arrive in time.              I never fail to keep my word.
 = He was unable to arrive in time.       = I keep my word without fail.