r tea to water

prefer+名词+to(prep.)+名词

i prefer drinking tea to drinking water

prefer to(不定式的标志)+动词原形：更喜欢新概念英语官网

rather than ：不喜欢

he prefers to drive bus rather than drive a taxi

i prefer to have an apple rather than have an orange

3......

used to(不定式的标志) 过去做现在不做

used to do过去常常做现在不做了

be used to doing sth习惯于

i am(not) used to getting up early我习惯起早

be used to do sth被用来

the knife is used to cut the paper刀被用来切纸

the boy is used to swimming in the river那男孩习惯在河里游泳

the boy used to swim in the river那男孩过去在河里游泳

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(car)因car是主语，所以不能出现

the clothes is too comfortable to ware

special difficulties

so/such如此

such...that.../so...that...如此以致于

so+形容词(副词)+that.../such+(a，an修饰词或形容词)+名词+that

一旦有名词，就认为形容词修饰的是名词，前面的词也修饰的是名词

如果名词是可数名词才要加a和an，反过来如果名词是可数，一定要加a或an

如果形容词是表示数量的(many，much，little，few)，一律用so

there is so little time left that we must hurry

there is such a little(小) bird that i can't see it

he is so lazy a boy/he is such a lazy boy

如果有几个以上的形容词共同修饰一个名词的时候，冠词放在第一位

such+冠词+形容词+名词/so+形容词+冠词+名词