在英语越来越普及的21世纪，学好英语成了大学生的首要目标。为帮助大学生掌握好英语知识，特提供以下文章：
1. Everyone has a right to enjoy his liberty, and____his life.
A. indeed
B. so
C. much less
D. much more
2.He claims to be an expert in astronomy, but in actual fact he is quite ignorant on the subject.
____he knows about it is out of date and inaccurate.
A. What little
B. So much
C. How much
D. So little
3. I would just as soon you ____the book yesterday.
A. had returned
B. returned
C. would have returned
D. would return
4. She began to be worried lest he____with some accident.
A. had not
B. should have met
C. would meet
D. met
5. “Has he gained weight?”
“He would gain weight, but he____much.”
A. doesn’t eat
B. didn’t eat
C. hadn’t eaten
D. couldn’t eat
谜底及解析：
1.much more等于still more，意为“更不用说”，用于必定句;much less也就是still less，意思不异，但用于否认句。故谜底为D。
2.考绩名词性从句。第二句话中what little he knows about it作整句话的主语，其中what用做little的定语，意思是“所……的一点点”。
3.would(had) rather, would as soon, would sooner或would prefer所指导的从句中要求使用虚拟语气，此外，对曩昔事实的虚拟应用曩昔完成时，所以选A。
4.在以lest和for fear that指导的状语从句中，谓语动词多用虚拟语气，凡是组成是：should +动词真相;本题用should+ have done的形式，暗示动作发生在她“担忧”这个动作之前并已完成。故谜底为B。
5.but用作连词时，不指导虚拟语气的句子，但可以同前半句是虚拟语气的句子连用。如不美观前半句是对曩昔事实的虚拟，but后用一般曩昔时;如不美观是对此刻事实的虚拟，but后用一般此刻时。故谜底为A。