Unit 9Have you ever been to a museum?,注意: ( 1 )当have been to/have gone to/have been in/at后接地点副词,如here,there,home时,to要省略。 ( 2 )have been in+组织,表示“加入某组织”。例如: He has been in the army for three years.他参军三年了。 ( 3 )have been+adj./n.表示“呈现状态”。例如: The shop has been open for 10 years.这家店营业十年了。 2.ever,never常与现在完成时连用,是现在完成时的标志词。 ( 1 )ever意为“曾经”,表肯定,可用于肯定句、否定句和疑问句。 ( 2 )never意为“从不”,表否定,常用来回答含有ever的一般疑问句。例如: Have you ever been there?你曾去过那里吗? No,I have never been there before.不,我以前从未去过那里。,.用have/has been to或ha
