B
In the process of growing up, we have many troubles, but they are not terrible at all.
Many teenagers argue with their parents from time to time. We may think our parents don't understand our dreams, our hobbies, or the way we think. We want more freedom to make our own choices, while parents always worry about whether we are making the right decisions. However, most parents love us deeply and just want us to be safe, healthy and happy. They help us avoid unnecessary troubles. Learning to communicate with them patiently, listening to their words and sharing our feelings with them can bring us warmth and peace, and make the relationship between parents and children better.
Besides, we may feel stressed when comparing with classmates. Some are good at study and always get high grades; some are popular in school and have many friends; some are talented in sports, music or art. It's easy for us to feel not good enough when we look at others' advantages. This pressure is common among teenagers, but it's not good for our mind. Instead of feeling worried or upset about others' success, we should focus on our own progress. Everyone is different and has his own strong points. Every small step we take, every little progress we make. We just need to be the best of ourselves.
What's more, failure is part of life. Growing up is not always smooth. When we fail an exam, lose a competition, or can't finish a task well, we naturally feel upset, disappointed or even hopeless. But we shouldn't be afraid of failure. If we calm down, think carefully and find out why we failed, we can learn a lot from mistakes. The hard time is painful and difficult, but it also teaches us courage, patience and how to solve problems. Every failure we get over makes us braver and stronger.
In fact, growing up has both pains and gains. The arguments with parents, the stress from study and comparison, the difficulties and failures, these are all growing pains. The "pains" make us learn, grow and understand the world better. The "gains" make us thankful for the love, warmth and progress we get. As long as we face them bravely, keep a positive mind and learn from every experience, we will grow into a better, stronger and more excellent person.
()1. What does the writer think of growing up?
A. It is only full of happiness.
B. It is difficult but meaningful.
C. It is boring and tiring.
D. It is always full of pressure.
()2. Why do teenagers often argue with parents?
A. Because their parents never love them.
B. Because they think parents don't understand them.
C. Because their parents always make mistakes.
D. Because they don't want to communicate with parents.
()3. What can we learn from failure according to the passage?
A. We should give up easily.
B. We can learn a lot from mistakes.
C. We should compare with others.
D. We must feel upset all the time.
()4. The underlined word "gains" probably means .
A. 收获 B. 负担
C. 烦恼 D. 压力
()5. What is the main idea of the passage?
A. How to make friends with parents.
B. How to get away from pressure.
C. Growing pains and gains help us grow.
D. Teenagers always have problems.

1.B 2.B 3.B 4.A 5.C

1. 通读全文可知，成长过程中会有和父母争吵、同辈比较带来的压力、遭遇失败等困难，但这些经历也能让我们学习、成长，最终成为更优秀的人，因此作者认为成长是困难却有意义的，对应选项B。
2. 根据文章第二段第二句"We may think our parents don't understand our dreams, our hobbies, or the way we think."可知青少年和父母争吵是因为他们觉得父母不理解自己，对应选项B。
3. 根据文章第四段"If we calm down, think carefully and find out why we failed, we can learn a lot from mistakes."可知我们可以从错误中学到很多东西，对应选项B。
4. 划线词"gains"在最后一段，前文提到成长有"pains（痛苦）"，后文解释"The 'gains' make us thankful for the love, warmth and progress we get."，这些都是成长中得到的正向回报，因此"gains"意为“收获”，对应选项A。
5. 全文围绕成长过程中的痛苦与收获展开，说明这些经历都能帮助我们成为更好的人，核心主旨是成长的苦与收获都助力我们成长，对应选项C。