老师好，有以下问题想请教一下。
15. The island, joined tothe mainland by a bridge, is easy to go to.
这里为何to go to 不是to go?
16. More highways have beenbuilt in China, making it much easier for people to travel from one place toanother.
这里it是形式宾语吗?
17. More TV programs will beproduced to raise people's concern over food safety.
其中to raise的逻辑主语是什么呢？是more tv program还是us？to raise作什么成分呢?
18. Michael put up a pictureof Yaoming beside the bed to keep himself reminded of his own dreams.
其中to keep的逻辑主语是michael还是 picture ofYaoming? Reminded是himself的宾补吗? Of his owndreams修饰reminded?
19. Do you wake up everymorning feeling energetic and ready to start a new day?
Feeling是状语修饰wake，副词up修饰wake。Ready和energetic并列吗? To start的逻辑主语是哪个，干什么成分呢。还是构成ready+不定式形容词短语？
网友的问题逐个解答如下：
15. The island,joined to the mainland by a bridge, is easy to go to.
这里为何to go to 不是to go?
——to go to 是“反射不定式”，其逻辑宾语就是句子主语 The island。注意：反射不定式需要是及物动词或及物的短语动词，若是不及物动词，则需要有介词，如go to。
这种格式的句子结构与形容词的性质有关。如：easy, difficult, hard, great,pleasant等。又如：
Thequestion is difficult to anwser.
He iseasy to satisfy.
He isdifficult to get along with.
16. More highwayshave been built in China, making it much easier for people to travel from oneplace to another.
这里it是形式宾语吗?
——是的。
17. More TVprograms will be produced to raise people's concern over food safety.
其中to raise的逻辑主语是什么呢？是moretv program还是us？to raise作什么成分呢?
——to raise的逻辑主语是省略了的people或we，即网友所说的by us 中已经暗示。toraise...作目的状语，类似问题之前解答过：
14.More work needs to be done to achieve the final success.
toachieve的逻辑主语是什么呢，作什么成分修饰什么呢，more work needs to be done to achieve the final success.逻辑主语是us吗?
——to achieve the final success 作目的状语，其逻辑不是句子的主语，被省略了，应为“人”（we，people）。从被动语态bysb. 也可以看出逻辑主语是哪个。
18. Michael put upa picture of Yaoming beside the bed to keep himself reminded of his own dreams.
其中to keep的逻辑主语是michael还是 picture of Yaoming? Reminded是himself的宾补吗? Ofhis own dreams修饰reminded?
——to keep的逻辑主语自然是句子的主语Michael。to keep himself reminded of his own dreams 作目的状语。假如逻辑主语是a picture of Yaoming，就不是目的状语，而是定语或宾补了。但，句意不允许作定语和宾补，需要排除。
19. Do you wake upevery morning feeling energetic and ready to start a new day?
Feeling是状语修饰wake，副词up修饰wake。Ready和energetic并列吗? Tostart的逻辑主语是哪个，干什么成分呢。还是构成ready+不定式形容词短语？
——剖析成分注意意群，不要拆开。feeling energetic and ready tostart a new day 整个目前分词作随着状语，其中energetic and ready 作并列表语，to start a new day是目的状语，其逻辑主语自然是句子主语you。
