5.(2009年高考天津卷)________ by the advances in technology，many farmers have set up wind farms on their land.

　　A.Being encouraged B.Encouraging

　　C.Encouraged D.Having encouraged

　　解析：选C。考查非谓语动词。由于主语many farmers和作状语的encourage之间是被动关系，排除表示主动意义的B项和D项。而being encouraged除表示被动外，还表示进行。农民们显然不是正在受到科技进步的鼓舞，故排除A项。

　　6.(2011年汕头高二检测)________ in 1636，Harvard is one of the most famous universities in the United States.

　　A.Being founded B.It was founded

　　C.Founded D.Founding

　　解析：选C。分析句子结构可知应选考查非谓语动词形式作状语的，排除B项，另外found与Harvard之间为被动关系，应用过去分词形式作状语，故选C。

　　7.(2011年晋中高二检测)________ as the “First Lady of Speech”，Dr Lillian Glass is recognized as one of the world’s leading experts on communication skills.

　　A.Knowing B.Having known

　　C.Known D.To bee known

　　解析：选C。 be known as被称为……。Dr Lillian Glass与know之间为被动关系，应用过去分词形式作状语。A、B表主动，应排除;D项表将来，也可排除。

　　8.________ more attention，the trees could have grown better.

　　A.Given B.To give

　　C.Giving D.Having given

　　解析：选A。考查分词作状语。句子主语the trees与give之间是被动关系，而四个选项中只有A项表示被动意义，故答案选A。Given more attention相当于一个条件状语从句If the trees were given more attention。

　　9.________ in thought，he almost ran into the car in front of him.

　　A.Losing B.Having lost

　　C.Lost D.To lose

　　解析：选C。考查分词作状语。句意：由于陷入沉思，他差一点撞到前面的车上。be lost in thought为固定搭配，意为“陷入沉思”。过去分词短语lost in thought在句中作原因状语。