G9GRAMMAR现在完成时I
现在完成时的概念
①表示过去发生的动作对现在造成的影响或结果Shehasbeenillforthreedays
(她病了三天了
)②表示从过去某一时间开始一直持续到现在的动作或状态
We'veknowneachothersincewewerechildren
(我们从小就认识
)IhavebeenamemberofthePartyfor10years
构成:”助动词have,has+过去分词”现在完成时态的肯定句、否定句和疑问句形式(以work为例):人称肯定否定疑问回答第一人称IhaveseentheUFO
Wehavetravelledaroundtheworld
Ihaven’tseentheUFO
Wehaven’ttravelledaroundtheworld
HaveyouseentheUFO
Haveyoutravelledaroundtheworld
Yes,Ihave
/No,Ihaven’t
Yes,wehave
/No,wehaven’t
第二人称YouhavebeentoEngland
Youhaven’tbeentoEngland
HaveyoubeentoEngland
Yes,I/wehave
No,I/wehaven’t
第三人称He/ShehasbeentoBeijing
Theyhavegivenconcertsallovertheworld
He/Shehasn’tbeentoBeijing
Theyhaven’tgivenconcertsallovertheworld
Hashe/shebeentoBeijing
Havetheygivenconcertsallovertheworld
Yes,he/shehas
No,he/shehasn’t
Yes,theyhave
No,theyh