[转载]疑难解答：This were to be new made 的 this

“This were to be new made”的this 是什么?

SONNET 2 (by William Shakespeare)

When forty winters shall beseige thy brow, 
And dig deep trenches in thy beauty's field,
Thy youth's proud livery, so gazed on now, 
Will be a tatter'd weed, of small worth held: 
Then being ask'd where all thy beauty lies, 
Where all the treasure of thy lusty days; 
To say, within thine own deep-sunken eyes, 
Were an all-eating shame and thriftless praise.
How much more praise deserved thy beauty's use, 
If thou couldst answer 'This fair child of mine 
Shall sum my count and make my old excuse,' 
Proving his beauty by succession thine! 
    This were to be new made when thou art old, 
    And see thy blood warm when thou feel'st it cold.

PARAPHRASE 

When forty years have made your brow wrinkled with age,
And you are showing all the other signs of aging,
The pride and greatness of your youth, so much admired by everyone now,
Will be worth as little as a tattered weed:
Then, when you are asked 'where is your beauty now?',
And, 'where is the treasure from your days of merriment?'
You must say, within your own eyes, now sunk deep in their sockets,
Where lies a shameful confession of greed and self-obsession.
If you would have only put your beauty to a greater use,
If only you could answer 'This fair child of mine
Shall give an account of my life and prove that I made no misuse of my time on earth.'
Proving that his beauty, because he is your son, was once yours!
    This child would be new-made when you are old,
    And you would see your own blood flow warm through him when you are cold. 

Notes:

beseige (1): the beginning of a straightforward military metaphor (dig deep trenches, beauty's field, livery).

proud livery (3): the poet's depiction of his friend proudlywearing his own youthfulness as one would wear a uniform (livery).

tatter'd weed (4): tattered garment (the youth's livery in the above line).

lusty (6): passionate or vigorous. 

all-eating shame (8): all-consuming shame.

thriftless (8): unprofitable.

Shall sum my count (11): Shall settle my accounts.

make my old excuse (11): justify my old age.

Notes from Other Sources:

This were to be new made = this would be as if you were being newly created.

SONNET 2 权威汉译：http://blog.sina.com.cn/s/blog_a795440b0101i27p.html

（英语翻译交流网）