51.	A之于B犹如C之于D。
	A is to B	as	C is to D
		what

  * 阅读之于心灵，犹如食物之于身体。
Reading is to the mind as food is to the body.
   =Readingis to the mind what food is to the body.
   (= As food is to the body so is reading to the mind.)

52.	… no more … than …  和…一样不…(两者皆非…)  … no less … than …   和…一样…(两者皆一样…)

  * 她跟你一样不用功。                  * 你跟你母亲一样漂亮。
     She is no more diligent than you.          You are no less beautiful thanyour mother.
   = She is not diligent, nor are you.            = You are as beautiful as your mother.
   = Neither she nor you are diligent.           = Both you and your mother are beautiful.

53.	宁愿...也不愿...
	would    rather   had      sooner		+ V + than + V
	= prefer +	n.	to	n.
		Ving		Ving
	= prefer + to V + rather than + V

  * 我宁愿站也不愿坐。
  I would rather stand than sit.
= I would sooner stand than sit
= I had sooner stand than sit.
= I had rather stand than sit
= I prefer standing to sitting.
= I prefer to stand rather than sit.

54.	not so much  A  as  B   与其说是A不如说是B

  * 人生的成功与其说是在于天才，不如说是在于勤奋。
Success in life depends not so much on talent as on diligence.

55.	(是...的) 几倍...                   as + adj. ( + as B )              ß看动词决定用adj.或adv.  A + V + 倍数 +   adj.比较级 ( + than B )                           the 名词  ( + of B )

  * 这条河是那条河的两倍长。
     This river is twice as long as that.
= This river is twice longer than that.
= This river is twice the length of that.

56.	know better + than to V   不会那么傻到去做...

  * 我不会蠢到去做那样的事。
     I know better than to do such a thing. (= I am not so foolish as to do such a thing.)

57.	(Al)though  S + V ,  S + V.   虽然...但是...

  * 虽然他穷，但是很快乐。
 Although(Though) he is poor, (yet) he is very happy.
= Although poor, he is very happy.            ß有although就不要有but
= He is poor, but he is very happy.            ß有but就不要有although

58.	虽然...；尽管...  Although + S + V ,  ～～.
	For all  　With all ＝ In spite of 　 Despite  　Notwithstanding	+	n.   Ving.　， 　    .

  * 尽管她有钱，但是并不快乐。
     Although she is wealthy, she is unhappy.
= In spite of her wealth, she is unhappy.

59.	A  + 名词  形容词  副词          + as[though]  S + V , ...........       虽然...；尽管...  分词  动词原形

  * 她虽是女流之辈，却很有信心。
Although she is a woman, she has much confidence.
  = Woman as she is, she has much confidence.           ß冠词要去掉
看来难以置信，但却是真的。
Although it seems impossible, it is true.
  = Impossible though it seems, it is true.
即使他去试，他也不可能成功。
Although he may try, he can not succeed.
  = Try as he may, he can not succeed.               ß甚至连动词也可以移前

60.	Wh-ever ......, S + V.	无论...(何时、何地、谁、什么...)，　　　。
	=No matter wh- ......, S + V.

  * 无论什么时候去看他，都会发现他埋首书桌。
Whenever[=No matter when] we call on him, we will find him at his desk.
不管做什么，都要把它做好。
Whatever[=No matter what] you may do, do it well.
不管你是谁的儿子，我一视同仁。
Whosever[=No matter whose] son you are, I can’t make an exception of you.