阅读理解：阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项．

Hard to Miss This Elephant

　　The film starts out as a normal day at a typical American high school. Friends chat in the dining room and boys play football. But there's a big surprise when the movie ends with two students going crazy in the school-shooting and killing people.

　　This is “Elephant”.Filmed in just 2D days, it stars real high school kids. American director Gus Van Sant had no ready made lines (台词). The student actors made up their own dialogue, with Van Sant asking them to base their characters on their own lives.

　　Although it may not sound very high quality, the film won the Palmed' Or(金棕榈奖) for Best Film and the award for Best Director at the Cannes film festival in France on May 25.

　　The film is based on the shootings at a high school in the US, where two boys killed 13 people and then them-selves in 1999.

　　The title of the movie refers to the old expression about a problem that's as hard to ignore (忽略) as an elephant in the house.

　　The film takes a close look at a few hours in the lives of the victims (受害者) and the killers. It shows how high school is a different experience for everyone－fun and friendly, or hard and lonely.

　　In many ways, the two boys, who carry out the shooting, act like ordinary kids. They joke around with one boy's mother as she serves them cakes and play the piano. But, there are hints (暗示) of the anger they feel inside. One of the boys is bullied (欺负) at school. The other plays violent video games. But Van Sant isn't blaming their killings on either bullying or violent games. In fact, the film doesn't offer any reason for why school violence happens.

　　“I didn't want to explain anything. It's up to the audience to draw its own conclusions,” said the 51-year-old director.

1．The description of a normal day at an American high school in the first paragraph ________.

[　　]

A．shows what life is like in American high schools

B．shows that the film was set in an American high school

C．serves to introduce the unexpected, dramatic ending of the film

D．suggests that some kind of danger is hidden in the setting

2．The lines of the film were________.

[　　]

A．created by student actors

B．given by the director

C．carefully designed by professional people

D．thought out while acting

3．The film doesn't tell why the school shootings happen________.

[　　]

A．because the mental problems of the high school students are hard to present

B．but there are some hints of the reasons

C．because life itself is the maker of problems

D．because this leaves much food for thought

4．The headline of the story “Hard to Miss This Elephant” ________.

[　　]

A．cleverly includes the title of the film

B．makes one want to find out what this elephant is

C．suggests that this award-winning film has caught people's attention

D．does all the above