当遇到老师的不公平对待时，作为学生，应该（    ）

①有意疏远老师，避免再次发生误会     ②选择恰当的机会，主动解释清楚

③铭记在心，借机批驳老师                  ④学会从老师的角度想一想

扪参历井仰胁息，____。李白《蜀道难》

已知直线方程：$l_1$：2x-4y+7=0,  $l_2$:x-2y+5=0,则与$l_2$的关系（ ）

词形转换
There are some ____ at school. (boy)
 Is this ____ classroom? (we)
There are five____ in the room. (child)
 Are there ____ boats in the river? (some)
There are three____ and four __________ in the picture. (man, woman)
Mary, is this ____  bottle of coke? (you)
Daming ____ (be not) in Class Three.
I have two ____ (pencil-box)
Bill is from ____ . (American)
What are____ .(that)
Are you in ____  One? (grade)
There are two ____ on the wall. (picture)
Look! These____ are good. (cake)
Are these ____  apples? (you)
Lingling is from ____ . (Chinese)

下列有关《红楼梦》的说明，不正确的两项是（    ）