高中英语单词要掌握多少个呀？

要三千五百个单词左右，也就是新概念一，二的水平 ， 考纲上也要的 要提高英语，考个好点的大学，见意你学了除了课本外的东西以外 最好学报个英语培训班，如新概念二，学后最后再学个新概念三，就差不多了。

高中英语那些单词无被动语态(北师大版)

可以明确的告诉你没有。英语里面只有后面可以直接跟宾语的动词，也就是及物动词才有被动语态。
1) 不及物动词或动词短语无被动语态：
appear, die disappear, end (vi. 结束), fail, happen, last, lie, remain, sit, spread, stand
break out, come true, fall asleep, keep silence, lose heart, take place.
After the fire, very little remained of my house.

比较： rise, fall, happen是不及物动词；raise, seat是及物动词。

(错) The price has been risen.
(对) The price has risen.
(错) The accident was happened last week.
(对) The accident happened last week.
(错) The price has raised.
(对) The price has been raised.
(错) Please seat.
(对) Please be seated.
要想正确地使用被动语态，就须注意哪些动词是及物的，哪些是不及物的。特别是一词多义的动词往往有两种用法。解决这一问题唯有在学习过程中多留意积累。

2) 不能用于被动语态的及物动词或动词短语：
fit, have, hold, marry, own, wish, cost, notice, watch agree with, arrive at / in, shake hands with, succeed in, suffer from, happen to, take part in, walk into, belong to

This key just fits the lock.
Your story agrees with what had already been heard.

3) 系动词无被动语态：
appear, be become, fall, feel, get, grow, keep, look, remain, seem, smell, sound, stay, taste, turn
It sounds good.

4) 带同源宾语的及物动词，反身代词，相互代词，不能用于被动语态：
die, death, dream, live, life
She dreamed a bad dream last night.

5) 当宾语是不定式时，很少用于被动语态。
(对) She likes to swim.
(错) To swim is liked by her.