現(xiàn)在完成進(jìn)行時(shí)基本句型
肯定式第一人稱(chēng)have been doing sth.
疑問(wèn)式：Have+第一人稱(chēng)+been doing sth.
簡(jiǎn)略回答：Yes，第一人稱(chēng) have.No，第一人稱(chēng) haven't.
肯定式：第三人稱(chēng)+has been doing sth.
疑問(wèn)式：Has+第三人稱(chēng)been doing sth.
簡(jiǎn)略回答：Yes，第三人稱(chēng)has.No，第三人稱(chēng)hasn't.
1）表示一個(gè)在過(guò)去開(kāi)始而在最近剛剛結(jié)束的行動(dòng)，如：
Ann is very tired. She has been working hard.
Why are your clothes so dirty? What have you been doing?
2)表示一個(gè)從過(guò)去開(kāi)始但仍在進(jìn)行的行動(dòng)，如：
It has been raining for two hours.(現(xiàn)在還在下)
Jack has been feeling very well recently.
3)表示一個(gè)從過(guò)去開(kāi)始延續(xù)到現(xiàn)在，可以包括現(xiàn)在在內(nèi)的一個(gè)階段內(nèi)，重復(fù)發(fā)生的行動(dòng)，如：
She has been playing tennis since she was eight.
4)現(xiàn)在完成時(shí)強(qiáng)調(diào)動(dòng)作行為的結(jié)果、影響，而現(xiàn)在完成進(jìn)行時(shí)只強(qiáng)調(diào)動(dòng)作行為本身，如：
Tom’s hands are very dirty. He has been repairing the car.
The car is going again now. Tom has repaired it.
標(biāo)志：1.句中常有延續(xù)性動(dòng)詞，2.時(shí)間點(diǎn)前有since。