新概念英语第二册42-03

Special Difficulties

so/such，It's easy to recognize.

The apple is sweet enough to eat.

如果一个不定式的前面是一个形容词，如果主句的结局是系表结构＋to,不定式当中常常用主动表被动

在不定式的表达方式当中，动词的宾语如果刚好是这句话的主语，这个宾语一定不能出现

The apple is too sour to eat.

to answer the question

The question is easy enough to answer.

easy to recognize

在不定式当中，也许有可能用主动表达被动含义，及物动词后面一般加宾语（这个宾语就是这句话的主语就不加）

The clothes are comfortable to wear.

so/such：如此

so/such...that...如此以致于

so+形容词或副词

such＋（a/an或形容词）名词

如果有名词用such，如果没有名词用so

如果名词是可数名词单数，才会在名词前面出现a/an，发过来如果是可数名词单数，前面一定要加a/an

1...so...

2...such a...

4...such...

5...so...

6...such a...

7...such an...

8...such a...

3....

such mistakes

如果形容词是表达数量的（many/much/few/little)，一律用so

There is so little time left that we must hurry.

There is such a little bird that I can't see it.