Years ago, I lived in a building in a large city．The building next door was only a few feet away from mine．There was a woman who lived there and whom I had never met，yet I could see her sitting by her window each afternoon，sewing（缝纫）and reading．

After several months had gone by，I began to notice that her window was dirty．Everything was unclear through the dirty window．I would say to myself，"Why doesn’t that woman clean her window? It really looks terrible．"

One bright morning I decided to clean my flat，including cleaning the window

Late in the afternoon after I finished the cleaning．I sat down by the window with a cup of coffee for a rest．What a surprise! Across the way，the woman sitting by her window was clearly seen．Her window was clean!

Then it dawned on me．I had been criticizing（批评）her dirty window，but all the time I was watching hers through my own dirty window．

That was quite an important lesson for me．How often had I looked at and criticized others through the dirty window of my heart，through my own shortcomings（缺点）?

From then on，whenever l want to judge（判断）someone，I ask myself first，"Am I looking at him through my own dirty window? "．Then I try to clean the window of my own world so that I can see others’ world more clearly．

1．The writer couldn't see anything clearly through the window because______．

A．the woman's window was dirty

B．the writer's window was dirty

C．the woman lived far away

D．the writer was near-sighted（近视的）

2．After the writer finished the cleaning，he was surprised to find that______．

A．the woman was sitting by her window

B．the woman's window was still terrible

C．the woman was cleaning her window

D．the woman's window was clean

3．The underlined part "it dawned on me" probably means______．

A．I began to understand it

B．it cheered me up

C．I could see myself through the window

D．it began to get light

4．From the passage we know that______．

A．both the woman and the writer lived in a small town

B．the writer often cleaned the window

C．both the woman and the writer worked as cleaners

D．the writer never met the woman