【正确答案】Arising in recent years, microblog is a social networking service. To put it simply, you send several sentences of no more than 140 words or pictures to the microblog via computer or cell phone, sharing what you see, hear and think in your lives with your friends anytime and anywhere. As a communication tool and platform to obtain information, this new means of communication has been popular among people of different ages. The international best-known microblogging website is Twitter, on which a great many renowned individuals and organizations communicate. The Sina microblog is the most visited microblogging website in China. At present, microblog has become one of the major online activities of Chinese netizens.

【答案解析】 1.“近几年开始兴起的”可处理为现在分词短语放在句首，作伴随状语，即Arising in recent years。
   2.第2句很长且没有明显的主语，可将“你”作句子的主语。“就是将……通过……发到微博上”可采用send sth. to...via...的结构。“所见、所闻、所想”通常译为以what引导的名词性从句，即what you see，hear and think。由于整句过长，可将“随时随地和朋友分享……”处理为伴随状语(sharing what you see...)，使得句子结构更加清晰。
   3.“……知名人士和组织在这里进行交流”中的“这里”指代Twitter，可译为which引导的非限制性定语从句，介词on提前。