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 ____he knows about it is out of date and inaccurate.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
答案及解析：
1.【解释】much more等于still more，意为“更不用说”，用于肯定句;much less也就是still less，意思相同，但用于否定句。故答案为D。
2.【解释】考查名词性从句。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.【解释】would(had) rather, would as soon, would sooner或would prefer所引导的从句中要求使用虚拟语气，另外，对过去事实的虚拟应用过去完成时，所以选A。
4.【解释】在以lest和for fear that引导的状语从句中，谓语动词多用虚拟语气，通常构成是：should +动词原形;本题用should+ have done的形式，表示动作发生在她“担心”这个动作之前并已完成。故答案为B。
5.【解释】but用作连词时，不引导虚拟语气的句子，但可以同前半句是虚拟语气的句子连用。如果前半句是对过去事实的虚拟，but后用一般过去时;如果是对现在事实的虚拟，but后用一般现在时。故答案为A。
