【练习】
1.?You will find the word "psychology" ＿＿＿＿under "P" in your dictionary.
A.have listed?? B.list?? C.listed?? D.listing答案：??C
解析：?单词psychology被列在 "P"之下，有被动关系。
2. Living near the sea, ___________________.
A. we enjoy healthy air and beautiful sight
B. healthy air andbeautiful sight is what we enjoy
答案：A
解析：?living near the sea 分词短语作原因状语，其动作必须由主语来做。
3.?Sandy could do nothing but??__________to his mother that he was wrong.
A.admitting?? B.admits?? C.admit?? D.to admit答案：?C
解析：but表示 "除了"，为介词，当其前面有动词do的各种形式时，but后接不带to的不定式。
4.?__________ since the night before, I felt very hungry.
A. Having not eaten anything B. Not eating anything答案：D
解析：?现在分词完成式的否定式做原因状语,否定须在短语之前.
5.?_____ (consider) his age, the little boy read quite well.?（填空练习）
答案：Considering
解析：considering为介词，作“就……而论，考虑到”解。
6.What did the librarian _____ (forbid; take) out of the library?（填空练习）
答案：?forbid to be taken
解析：forbid sb./sth. to do sth.为固定用法，此句中forbid 的宾语为what。
【小知识】动词不定式的时态形式所表示的时间关系
（1）一般式：动词不定式一般式所表示的动作是和谓语动词所表示的动作同时发生，但在多数情况下，是在谓语动词所表示的动作之后发生，如：We decided to plant more trees this spring.（其后），They often watch us play?table tennis.
（2）完成式：动词不定式完成式所表示的动作发生在谓语动词所表示的动作之前，如：I am sorryto have kept you waiting.（3）进行式：动词不定式进行式所表示的动作正在进行中，而且与谓语动词所表示的动作同时发生，如：She happened to be writing a letter in the room when I came in.?
