阅读下面的短文，根据要求回答相关问题。（请将答案直接写在答题卷上）
[1] Hurt may occur at any time in our daily life, and forgiving someone who has hurt you or let you down is never an easy thing．Several new studies, however, say that it could have a lot of health benefits．When you think of forgiveness, you probably don’t think of it as being a health or medical problem．Studies from Stanford University, on the other hand, show that something like anger can ________.
[2] When cartoon book characters like the Incredible Hulk get angry, they change colors and often gain special power．In the real world, anger is less obvious and may be more dangerous. That’s why Professor Fred Luskin, founder of the Stanford Forgiveness for Good, says being angry can harm your physical and mental health. Two new studies seem to show the same idea.
[3] The studies find that people who are able to forgive feel less stress, less back pain, and less depression. They also have fewer headache, lower blood pressure, and fewer problems on sleeping.
[4] So it doesn’t matter if your anger is caused by the traffic or other things．Learning to let it go is important. Techniques such as deep breath or thought can help. Or just ask yourself if it’s worth hurting yourself by staying angry with someone else.
[5] Forgiveness does not mean that you simply accept what happened and say it’s OK. Instead, it’s a way of making peace with yourself about what happened in the past.
小题1:What does the underlined word “it” (paragraph 1) probably refer to?( no more than 4 words )
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小题2:Fill in the blank in Paragraph 1 with proper words．( no more than 4 words )
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小题3:Complete the following statement with proper words．( no more than 4 words )
It is proved that people who _______________________________ are more relaxed and healthy.
小题4:Why doesn’t it matter if your anger is caused by the traffic or other things? ( no more than 15 words )
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小题5:What is the main idea of the passage? ( no more than 10 words )
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