B. 有些动词的现在分词和过去分词都具有形容词特征，但是它们的意思有区别。它们的-ing形式往往用来说明事物的特征；他们的-ed形式表示被动的意思，用来说明人的情况。
I am interested in this interesting story. 我对这个有趣的故事感兴趣。
I am moved at the moving sight. 我被这动人的情景感动了。
They were amazed at the amazing facts. 他们对那些令人惊异的事实感到惊奇。
下面是一些常见的固定表达，请同学们牢记：
和to do 连用的固定搭配
ask sb. to do sth. 请求某人做某事
be pleased /be glad to do sth。很高兴做某事
can't wait to do sth. 迫不及待地做某事
can't afford to do sth. 不能担负起干某事
decide to do sth. 决定做某事
do/try one's best to do sth。尽全力做某事
do nothing to do sth. 对……无能为力
deserve to do sth. 值得干某事
形容词/副词+enough to do sth. 足以做某事
encourage sb. to do sth. 鼓励某人做某事
find + it + 形容词 +to do sth. 发现做某事……
get ready to do sth. 准备做某事
go on to do sth. 继续做某事
hope to do sth. 希望做某事
improve sth. to do sth. 改善/提高某物来干某事
invite sb. to do sth. 邀请某人干某事
It's better to do sth. 干某事比较好
It's time to do sth. 到该做某事的时间了。
like to do sth. 喜欢做某事……
like sb. to do sth. 喜欢某人做某事
love to do sth. 爱做某事
learn to do sth. 学会做某事
make one's mind to do sth. 下决心做某事
make a list of five ways to do sth. 列出干某事的五种方式的清单