题目内容：

    At some point in life， many people suffer a mental problem． While most people get over it， for others it doesn't go away easily．

The World Health Organization （WHO） says that about 20 percent of children and teenagers across the globe suffer from mental illness． It's thought that the number of children and teenagers with mental illness around the world will increase by half by 2020． It will become one of the main causes of disease， disabilities and even death．

The reason for mental problems among young people may be the increasing pressure in life． Study and relationships have always caused huge stresses for school children． For instance， they experience school bullying（欺凌）and academic pressure．

In China， the picture isn't bright， either． About 30 million Chinese children and teenagers under the age of 17， or 10 percent of children and teenagers in China， have a mental health challenge， reported China Daily．

Also， according to China Daily， Chinese people don't seek help with their mental problems． They fear that others will think less of them if they admit that they are in trouble． Many Chinese people are ashamed of their mental problems and mental illness is taboo（禁忌）in any Chinese families．

In the UK， over three-quarters of young people believe their mental health problems have a social shame and a quarter of young UK people wouldn't ask for help if they developed a mental problem．

Young people who don't seek help for their condition may be creating problems for themselves in the future． If you feel something is wrong within you - seek help．

Feeling down？ Here are three things to try if you feel low．

●Go to a psychology teacher． The teacher will listen to you and offer help - for free!

●Call 800-800-1100． It's the number of a hotline run by the Mental Health Research and Prevention Center． The line is open 24 hours a day．

● Tell your parents and visit the hospital if the situation gets out of control．

1.According to the WHO， about ______ of children and teenagers worldwide experience mental illness．

A. 10 percent    B. one fifth

C. 30 percent    D. three quarters

2.Chinese people don't ask for help with their mental health probably because ______ ．

A. they think less of their mental problems

B. they fear that they may get into trouble

C. they are ashamed to admit having mental problems

D. they are unwilling to avoid their mental illness

3.School children with mental health should try the following three things EXCEPT ______ ．

A. consulting their teacher

B. calling a hotline for advice

C. communicating with their parents

D. hiding their mental illness from others

4.What is the purpose in writing this article？ ______

A. To analyze the major causes of young people's mental illness．

B. To describe the current situation of young people's mental health．

C. To encourage young people to deal with their mental problems properly．

D. To introduce mental problems to Chinese young people．