3． When he entered the room, he found the window broken.

补充说明宾语window 的情况 window被打碎了， 过去分词做宾语补足语，表示被动

4. I'll have my bike fixed while you are cooking.

补充说明宾语my bike 的情况, bike是被修， 过去分词做宾语bike补足语，表示被动.

5. The street is lined with small shops.

这条街有许多小店铺。

过去分词做表语，表状态。

6 The cup is broken.

茶杯碎了。

这个句子不表示茶杯被打碎了的动作， 而表示茶杯碎了的状态。

In written English, past participle clauses can be used to link two parts of a sentence. Clauses like these can be used as alternatives to:

Reason clauses

1. He soon fell asleep, exhausted by the journey.

=He soon fell asleep, because he was exhausted by the journey.

2. Influenced by Gandhi's ideas about peaceful protests, he organized a bus protest in 1965.

=Because he was influenced by Gandhi's ideas about peaceful protests, he organized a bus protest in 1965.

Time clauses

1. Seen from the hill, the town looks magnificent.

= When the town is seen from the hill, the town looks magnificent.

2．Tried in some countries in Shandong Province, the new method of farming resulted in a marked rise in grain production.

=After the new method of farming was tried in some countries in Shandong Province, the new method of farming resulted in a marked rise in grain production

Conditional clauses

Given more time and attention, you can do it much better next time.

=If you are given more time and attention, you can do it much better next time.

Compared to the other group, we are quite quick.

=If we are compared to the other group, we are quite quick.