题目内容：

Movies are a great means of entertainment for many. There are some advantages of watching movies. Comedies, for example, help reduce your blood pressure. Laughter for 15 minutes during a film makes your blood vessels (血管) Wilder. Besides, when you watch a sad movie, you’re more likely to come away from it thinking about loved ones and feeling happy about what you have.

Watching movies can make you creative. A study shows that young children, who watched the use of magic in Harry Potter, score significantly higher in a creative thinking test than children who watched something else.

Moreover, movies are very useful for strengthening peopled mental health. They enable people to take time to really relax and temporarily forget about their daily concerns and problems.

However, watching movies aren’t always beneficial. Studies have shown that some people get real pleasure out of being scared by horror movies, but in various ways they may be risking their physical and mental health without even knowing it. When you watch a tense scene in a movie, your heart rate and blood pressure increase. Meanwhile this change in your brain chemistry reminds you of times when you were in a similar state, even if you have no idea you even had those memories. So if something horrible happens to you, being scared again by a movie can unintentionally make you experience it once more.

Scientists, politicians and parents have debated for decades if being exposed to movie violence leads to actual real-life violence. Overall the answer to that is probably still up in the air, but a new study seems to prove that watching aggression on screen can contribute to being a bully (土霸) in mil life, even if it is just in the short term.

In conclusion, certain movies play a positive role, but not all movies do. It depends completely on the subject of the movie. So it’s always advisable to choose the movies concerning something positive.

1.How docs watching sad movies benefit us according to the text?

A. It makes us content with our lives.

B. It rides us of unhappy memories.

C. It reduces our risk of illness.

D. It develops our creativity.

2.What does the underlined part “up in the air” in Paragraph 4 mean?

A. Meaningless.    B. Attractive.

C. Uncertain.    D. Obvious.

3.What does the author advise us to do to reduce the passive effect of movies?

A. Enjoy movies with more companions.

B. Make a wise choice of what to watch.

C. Try our best to watch movies less often.

D. Raise our ability to tell right from wrong.