【分析】
本篇书面表达属于应用文, 要求写一封信。
【详解】第一步：
审题: 建议信
人称：第一、三人称
时态： 一般现在时
结构： 总分法，分三部分，第一部分表示理解John现在的情况并分析原因，第二部分提出具体的建议，第三部分希望建议对John有帮助，并表示祝愿。
要点：
1. 表示理解John现在的情况并分析原因：因为新到一个地方，感到闷闷不乐，文化冲击和语言障碍造成他这种情况
2．提出具体的建议
①多交朋友
②积极参加班级活动
3．希望建议对John有帮助，并表达祝愿
第二步：列提纲（重点词汇、短语  ）
feel depressed；normal；a new comer；feeling；culture shock；language barrier；contribute to；offer some advice；make friends；take an active part in；class activities；be helpful to.
第三步：连词成句
(1)    You feel depressed.
(2)    It’s normal for you to feel that way since you are a new comer here.
(3)    Culture shock and language barrier contribute to your hard situation.
(4)    I’d like to offer you some advice.
(5)    Try to make more friends.
(6)    It’s a good idea to take an active part in the class activities.
(7)    The suggestions will be helpful to you.
根据提示和关键词进行遣词造句,适当地运用句型，注意时态和主谓一致问题。
第四步：连句成篇(衔接词)
表示时间顺序： first of all; to begin/start with , in the beginning
firstly.... secondly .... lastly / finally/in the end
表示并列或补充关系： what is more; besides, moreover, apart from;
in addition, as well as；not only…but(also), meanwhile, in the meantime, some...some…others
表示转折对比关系：but, however, although, though, yet, while
on one hand…on the other hand ...,
表示因果关系：because, as, therefore, as a result, as a consequence, consequently, thus
连句成文，运用恰当的衔接词进行句子之间的衔接与过渡，使句与句之间逻辑性更强、
段与段之间结构清晰。
【点睛】范文要点全面，结构清晰，层次分明，上下文连贯，在表达时用到了很多高级词汇，如 feel depressed感到郁闷；normal 正常的；a new comer新来者；feeling感受；culture shock文化冲击；language barrier语言障碍；contribute to有助于；offer some advice提出一些建议；make friends交朋友；take an active part in积极参加；be helpful to对…有帮助等；复杂句式的运用提升了文章层次，如it作形式主语的句式It’s normal for you to feel that way；宾语从句的运用I think culture shock and language barrier contribute to your hard situation；非限制性定语从句的运用. In addition,it’s a good idea to take an active part in the class activities,which can help them know you better.等。