Question

4．汉语是世界上最难的语言之一，学习这种语言的人就会很快发现自己遇到了挑战．（challenge）Chinese is one of the most difficult languages in the world，and people （who are） learning it quickly find themselves challenged．．

Answer 1

分析 Chinese is one of the most difficult languages in the world，and people （who are） learning it quickly find themselves challenged．

解答 Chinese is one of the most difficult languages in the world，and people （who are） learning it quickly find themselves challenged．
这是对事物的一种评价，所以用一般现在时．
本句可使用并列句，其中who引导一个定语从句，修饰先行词people，one of+名词的复数表达…之一；find sb done发现某人被…．

点评 灵活运用复合句，恰当选用非谓语动词决定着一个句子的优劣．