Question

16．Teenagers shouldbe allowed to choose their own clothes（被允许选择自己的衣服）（own）．

Answer 1

分析 be allowed to choose their own clothes．

解答 答案：be allowed to choose their own clothes．前面有情态动词should，主语是teenagers是谓语allow允许的承受者，构成被动关系，故用情态动词的被动语态--情态动词+be+过去分词，允许某人去做某事allow sb to do sth，故be allowed to，选择choose，结合own自己的，故加上宾语their own clothes，故答案是be allowed to choose their own clothes．

点评 1．allow sth允许某事  I can't allow such a thing．我不允许发生这样的事． 2．allow doing sth允许做某事  We don't allow eating in the classrooms．（我们）不允许在教室吃饭． We don't allow smoking here．我们不允许在此抽烟． 3．allow sb to do sth允许某人做某事  Her father would not allow her to eat sweets．她父亲不允许她吃糖果．  They don't allow students to smoke in the class-room．他们不允许学生在教室抽烟． My parents don't allow me to stay out late．我父母不允许我深夜还留在外头． 4．allow sb sth 给予某人某物（尤指钱或时间）；让某人有（拥用或带有）某物 He allows his son too much money．他给他儿子的钱太多．