●用在have, get, make, keep等使役动词后面。如：

My watch is broken and I'll have it repaired.

Though he spoke loudly, he still couldn't make himself heard.

●用在with复合结构中。如：

She sat with her head bent down.

Mike painted his mother sitting in a chair with her hands folded.

★过去分词作状语

【语境展示】阅读下面句子，并试着归纳过去分词作状语的用法。

1. a. Asked what had happened, the boy lowered his head.

b. Caught in a heavy rain, he was all wet.

c. Given more attention, the trees could have grown better.

d. Much tired, he still kept on working.

e. Her head held high, she went by.

2. a. Praised by the teacher, Judy went red in the face.

→When Judy was praised by the teacher, she went red in the face.

b. Frightened by the story, the girl didn't dare to sleep alone.

→As the girl was frightened by the story, she didn't dare to sleep alone.

c. Grown in rich soil, these seeds can grow fast.

→If these seeds are grown in rich soil, they can grow fast.

d. Defeated for a second time, the player didn't give in.

→Although the player was defeated for a second time, he didn't give in.

3. a. When asked why he came here, the boy kept silent.

b. Although made before the war, the machine is still in perfect order.

c. If left untreated, the illness can result in total blindness.

d. Unless changed, this law will make life difficult for farmers.

【自我归纳】

●过去分词作状语时，可表示时间、原因、条件、让步、方式或伴随等。过去分词所表示的动作与句子主语之间构成逻辑上的动宾关系（第1组例句）。