八大时态之一 现在进行时-句子

现在进行时是表示现在、说话瞬间或当前一直正在做着的动作.

Eg: 1、Jenny is watching TV now.

2、 I am writing.

（1）一般句中用到表示“在现在”的时间状语，如：now, right now, at the moment 或It’s 几点钟”句型，常判断用现在进行时。

Eg:Let’s go fast .Mr. Wu is waiting for us now.

It’s six o’clock.The children are playing basketball.

(2)句中用到“Listen！” “Look!” “Keep quiet” “Don’t make noise!”等提示语时，表明说话间另一个动作正在进行，这时，句子也要用现在进行时。

Eg: Keep quiet ! The teachers are talking in the office.

现在进行时的谓语结构为:am/is/are 现在分词

am/is/are 在现在进行时句子谓语结构中作助动词用，无词义。

am/is/are 的选择运用由句子的主语人称或数决定。

A: I am watching TV at home.

B: Dave is cleaning the floor.

C: The students are seeing a movie.

将现在进行的肯定句变为否定句时，在be动词后面加上not.

Eg: Steve is talking to his teacher.

Steve isn’t talking to his teacher.

The children are eating some apples at my home.

The children aren’t eating any apples at my home.

将一个现在进行时的肯定句变为一般疑问句时，将句中的is或are提到句首。

Eg: Steve is talking to his teacher .

Is Steve talking to his teacher?

I am singing.

Are you singing?

Danny ___ ___(watch) TV, when you sang.（was watching）

I ___ ___ ___ ___(play computer game) at this time yesterday.（was playing computer game）

—Alan, it’s late. Why not go to bed?

— Jenny hasn’t come back yet. I _______ for her.

A. waited B. have waited C. am waiting D. was waiting

解析：句意“艾伦，很晚了，为什么还不睡？”“詹妮还没有回来。 我_____她”。语境分析，艾伦现在是正在等詹妮回来。应用现在进行时态。故选C。

Lucy! Would you like to give me a hand?

-- OK. I _______.

A. will come B. come

C. am coming D. would come

答案：C