is的特殊詞是什麼

is being done：現在進⾏時的被動語態，就是某物正被怎麼樣，這強調的是正在進⾏的

The building is being built now.這座建築物正在被修

The door is being repaired now.門正在維修中。/門正在被修

被動形式動名詞

1，做主語（少見）

Being unemployed entitles you to free medical treatment.失業可以享受免費醫療。

Being compared to Abba is a great compliment.被與Abba樂隊相比（對我）是一種謬讚。

2，做某些及物動詞或介詞的賓語（多見）

He can't bear being laughed at.他受不了別人的嘲笑。

I'm fed up with being put upon by my boss all the time.我受夠了老闆老是欺負我。

There is no longer any stigma to being divorced.離婚不再是種恥辱。

is

不及物動詞 vi.

1、(用於第三人稱單數現在時)是[L]

The picture on the wall is beautiful.牆上的畫很美.

Mr. Smith is a very good English teacher.

史密斯先生是個很好的英語教師.

助詞 .

1、(與v-ing連用構成現在進行時與v-ed連用構成被動語態)

Mr. Ward is known as a great painter.

沃德先生是一位遐邇聞名的大畫家.

What is she doing over there?

她在那兒做什麼?