的过去分词

Ap in the accepted sense of the word was drawn about 3,800BC,and represents the river Euphrates flowing through northern Mesopotamia,Irag.

本句中的known是过去分词做形容词用，意思是"已知的"，在某些语境中，known意为"着名的"。如

The oldest known map in the accepted sense of the word was drawn about 3,800BC, and represents the river Euphrates flowing through northern Mesopotamia, Irag.

本句中的known是过去分词做形容词用，意思是"已知的"，在某些语境中，known意为"著名的"。如：自考报名

The oldest known map in the accepted sense of the word was drawn about 3,800BC,and represents the river Euphrates flowing through northern Mesopotamia,Irag.

本句中的known是过去分词做形容词用，意思是"已知的"，在某些语境中，known意为"著名的"。如

Which 引导定语从句,修饰 light 6.Some people think that the Star of Bethlehem could have been a supernova.

有人认为圣诞星可能是一颗超新星。could have +过去分词表示对以前发生的行为或动作的推测。

Once published, his work became famous for the absence of rhyme at the end of each line.

过去分词一般表示完成的和被动的动作，在句子中可以用作定语、表语、宾语补足语和状语，但不能单独构成谓语。

We all want to make the world a better place but,given finite resources,we should look for the most costeffective ways of doing so.

本句是由用逗号和&but&连接的两个分句组成的并列句。在第二个分句中，过去分词短语&given finite resources&用做状语。

After the verbs and phrases mentioned above, you can also use "being"followed by a past participle.

在上面提到的动词或动词短语后面，还可以接&being +过去分词&。

A list of some of the most common infinitives, along with a sample variation, as well as their past participle forms, appears in the table below.

希望这篇意大利语不规则过去分词能对你的外语学习有所帮助。

Ask students to finish the exercises of how the past participles are used.

过去分词是非谓语动词的一种形式，表示完成和被动的动作。

What were you doing when the UFO arrived ?（2）I was sitting in the barber's chair.

动词be的过去式was /were＋动词的现在分词构成。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。