N个英语方面的小问题1.a)Do you notice the boy _____the street now?(cro

N个英语方面的小问题
1.a)Do you notice the boy _____the street now?(cross)
b)Did you notice the boy_____the street just now?(cross)
a填crossing,b填cross,我想知道为啥.
2.a)The doctor advised each of us_____more exercise.(take)
b)The doctor advised/suggested we_____more exercise.(take)
a填to take,b填take,我想知道为啥b填take,a和b两个句子有什么区别吗?
3.a)She was the only girl_____to go to the party yesterday.(invite)
b)One of the girls _____to the next party will be an American.(invite)
a填invited,b填to be invited,我想知道这个不定式和过去分词作定语有什么区别,我觉得a和b填哪种形式都可以.
4.就是我想知道过去分词作宾补的时候可不可以用不定式代替,比如We saw a cow tied to a big tree.可否改成We saw a cow to be tied to a big tree.又比如She found her handbag stolen.可否改成She found her handbag to be stolen.如果可以的话,那有没有特殊的情况不可以改?

1.a)Do you notice the boy _____the street now?(cross)
b)Did you notice the boy_____the street just now?(cross)
a填crossing,表示现在正在发生的情况（此刻说话的人叫另一人看正在发生的事情）
b填cross,过去时,此动作已经结束,不可能正在发生,所以用cross表示发生的状态.
2.a)The doctor advised each of us_____more exercise.(take)
b)The doctor advised/suggested we_____more exercise.(take)
a填to take,注意到each of us此时的宾语是us而不是we,us是we的宾格,表示前面的动词是直接接宾语的,所以是一个没有从句的句子,意思是医生建议我们干什么,而advise sb to do sth这个句型是应该知道的
b填take,这个句子可以看到是we,we不是advise的直接宾语,而是接了个从句,这个句子完整的是：
The doctor advised/suggested we should take more exercise.
把should省略了,而should后肯定是动词的原型了.
3.a)She was the only girl_____to go to the party yesterday.(invite)
b)One of the girls _____to the next party will be an American.(invite)
a填invited,invited表示状态,修饰girl,表示被邀请的女孩,这时候是已经是被邀请的状态了,如果是
She was the only girl to be invited to go to the party yesterday.
也是被邀请,可是这个状态可能是还没有发生,将要发生,而这里是昨天的事情,所以就不说to be invited
b填to be invited,这个可以是将要发生的,所以可以用,如果是invited,invited修饰的是girls,而不是one of the girls,意思就不一样了.
4.就是我想知道过去分词作宾补的时候可不可以用不定式代替,比如We saw a cow tied to a big tree.可否改成We saw a cow to be tied to a big tree.又比如She found her handbag stolen.可否改成She found her handbag to be stolen.如果可以的话,那有没有特殊的情况不可以改?
还是同样道理,用to do修饰的话有表将要干什么的意思,而直接用过去分词表示状态
We saw a cow tied to a big tree.我们看到牛被绑在树上
We saw a cow to be tied to a big tree.将要绑在树上.
特殊情况也许有,要看语境合不合适了