翻译句子（共5小题，每小题4分，满分20分）
小题1:如果你的朋友们厌倦学校的生活并常感到沮丧，你应该多给予他们指导和必要的帮助。
小题2:众所周知，对于高中学生们来说，定期参加一些社团活动和充当志愿者是非常有意义的。
小题3:作为生活重要一部分的旅游，既可以帮助我们释放来自工作和学习的压力，也可以回报给我们难忘的回忆。
小题4:四年前，Lewis没有达到要求的水平。但是他并没有灰心。终于，在伦敦奥运会上他被接纳为选手。
小题5:保护这些文化遗产是我们的责任，所以，任何游客都不被允许在博物馆内拍照、大声喧哗和触摸展品。(展品：exhibits)
小题1:If your friends get tired of school life and feel upset, you should offer them guidance and help when necessary.
小题2:As we all know, it is worthwhile for high school students to take part in club/society actities and serve as volunteers regularly.
小题3:Travel, an important part of life, can not only help us release pressure from work and study but also reward us with unforgettable memories.
小题4:Four years ago， Lewis failed to reach the required standard. However, he didn’t lose heart. Finally, he was admitted as one competitor in London Olympics.
小题5:It is our responsibility to protect these cultural relics. Therefore, no tourists are allowed to take photos, speak loudly or touch the exhibits.
题目分析：
小题1:这句话使用了条件状语从句，时间状语从句的省略：when necessary，词组“厌倦于” get tired of
小题2:这句话用了非限制性定语从句：As we all know,还有句型： it is worthwhile for sb. to do sth“某人做…是值得的”，还有词组“参加”take part in ，“担当”：serve as
小题3:这句话用了插入语an important part of life,和not only…. but also….“不但…而且”， reward sb with “给某人回报”
小题4:这句话里面用了词组：fail to do“没能做…”，lose heart“灰心”. be admitted as被录取为
小题5:这句话用了句型：It is our responsibility to do“做…是某人的职责”。
