答案解析:
1.答案:he should let his parents down//he should disappoint his parents
详解:
考查虚拟语气:当for fear that表示“生怕,唯恐”时,在其引导的目的状语从句中,谓语动词常用“(should)+动词原形”。
考查短语:let…down“令…某人失望”,相当于disappoint。
2.答案:she presented the lecturer with flowers on behalf of all the students
详解:
考查时态:“献花”是过去发生的事情,故用一般过去时。
考查短语:“献花”译为present sb.with flowers;“代表”译为on behalf of。