試比較:

　　They are moving their bed.他們正在搬床。 (are moving是謂語，表示主體的動作)

　　The story is very moving.這個故事很感人。 (moving是表語，表示主體的特征)

　　Her homework was done by her sister.她的作業是她姐姐做的。 (was done是謂語動詞被動語態)

　　Her homework is well done.她的作業做得很好。( done是表語)

　　(6)generally speaking(一般地說)，roughly speaking(粗略地說)，strictly speaking(嚴格地說)等現在分詞結構都是習慣用語，在句子中作插入語。

　　例如：

　　Generally speaking，a footballer of 20 is better than one of 40。

　　一般地說，二十歲的足球隊員比四十歲的強。

　　(7)分詞短語的邏輯主語就是句子的主語，而獨立結構的邏輯主語和句子的主語是不同的。

　　例如:

　　The last bus having gone，we had to walk home.

　　末班公共汽車已開走了，我們只好走路回家。

　　(三)分詞的時態和語態

　　上面已經談到，過去分詞可以表示“被動”和“完成”等意義，因此沒有時態和

　　語態方面的形式變化。下面談一下現在分詞的時態和語態。

　　1.現在分詞的完成式(having+過去分詞)表示的動作發生在謂語動詞所表示的動作之前或兩個動作在時間上有一定的間隔。

　　例如:

　　Having written the letter，John went to the post office.

　　(=After he had written the letter，John went to the post office.

　　約翰寫完信后，就去郵局了。

　　Having lived in Beijing for years，Lao Wang knows the city quite well.

　　(=As he has lived in Beijing for years，Lao Wang knows the city quite well.)

　　老王在北京住了多年，所以對這個城市很熟悉。

　　Having drunk two glasses of water, Xiao Ma felt a little better.

　　(=After he had drunk two glasses of water Xiao Ma felt a little better.)

　　小馬喝了兩杯水，感覺好一些了

　　一般式和完成式現在分詞都可以表示先后接連發生的動作。在可能引起誤解的場合應該用完成式現在分詞表示先發生的動作。

　　例如:

　　Opening the drawer，he took out his wallet.

　　(=He opened the drawer and took out his wallet.)

　　他打開抽屜，拿出錢包。

　　Coming into the room，he put down his bag.

　　(=he came into the room and put down his bag.)

　　他走進房間，放下提包。

　　Having brushed his teeth，Mr. Brown came downstairs for breakfast.

　　布朗先生刷過牙，就下樓來吃早飯。

　　(此句如寫成:Brushing his teeth, Mr. Brown came downstairs for breakfast.可能指“邊刷牙，邊下樓’。)