如下：

I"m doing my homework.

You"re washing your coat.He"s watching TV.They"re waiting for the train.What"s going on there?She"s watering the flower.I"m playing the piano.You"re having breakfast.He"s working on a project.They"re running.He"s swimming.She"s fishing.He"s talking to her.We"re argueing some problems.They"re drawing pictures.Are you helping your friends?The trees are being planted.He"s listening to the radio.

(1)Is there anyone singing?——No,there isn"t.

(2)Is there a teacher walking along the street?——Yes,there is.(3)There is a girl reading a book.——Oh,yes!She is so hard.(4)There is a little boy crying.——What"s happende?(5)There is some bread on the table.——Well,I like bread.(6)There are many people in the street,What are they doing?——I don"t know.(7)There are many trees over there!——Yes,I see.They are so beautiful!(8)There are lots of things need us to learn.——So we should work hard.

1、一般現在進行時的肯定形式：

句子：主語 + am/is/are + verb-ing.

例句：The phone"s ringing - can you answer it?

2、一般現在進行時的否定形式：

句子：主語 + am/is/are not + verb-ing.

例句：I"m not wearing a coat.

舉例：They are playing basketball now.現在他們正在打籃球.

Listen!She is singing an English song.聽！她正在唱英語歌.

Look at the picture.The children are flying kites in the park.看這幅圖.那些孩子正在公園放風箏.

We are making model planes these days.這些天我們正在做飛機模型.

It"s 6:30 now.I am getting up.現在是6：30.我正在起床.

They"re drawing pictures.他們正在畫畫.The trees are being planted.這些樹木正在被種植.He"s listening to the radio.他正在聽收音機.