［動詞的時態(tài)］用于現(xiàn)在完成時的句型
1）It is the first / second time that結構中的從句部分，用現(xiàn)在完成時。例如：
It is the first time that I have visited the city. 這是我第一次訪問這城市。
This is the first time （that） Ive heard him sing. 這是我第一次聽他唱歌。
注意：It was the third time that the boy had been late.
2）This is +形容詞最高級+that結構，that 從句要用現(xiàn)在完成時。例如：
This is the best film that Ive （ever） seen. 這是我看過的最好的電影。
典型例題
（1） Do you know our town at all？
No， this is the first time I ___ here.
A. was B. have been C. came D. am coming
答案B. This is the first time 后面所加從句應為現(xiàn)在完成時，故選B.
（2） Have you ____ been to our town before？
No， its the first time I ___ here.
A. even， come B. even， have come C. ever， come D. ever， have come
答案D. ever意為曾經或無論何時，反意詞為never，此兩詞常用于完成時。
注意：非延續(xù)性動詞的否定形式可以與表示延續(xù)時間的狀語連用。即動作不發(fā)生的狀態(tài)是可以持續(xù)的。
（錯）I have received his letter for a month.
（對）I havent received his letter for almost a month.
1）It is the first / second time that結構中的從句部分，用現(xiàn)在完成時。例如：
It is the first time that I have visited the city. 這是我第一次訪問這城市。
This is the first time （that） Ive heard him sing. 這是我第一次聽他唱歌。
注意：It was the third time that the boy had been late.
2）This is +形容詞最高級+that結構，that 從句要用現(xiàn)在完成時。例如：
This is the best film that Ive （ever） seen. 這是我看過的最好的電影。
典型例題
（1） Do you know our town at all？
No， this is the first time I ___ here.
A. was B. have been C. came D. am coming
答案B. This is the first time 后面所加從句應為現(xiàn)在完成時，故選B.
（2） Have you ____ been to our town before？
No， its the first time I ___ here.
A. even， come B. even， have come C. ever， come D. ever， have come
答案D. ever意為曾經或無論何時，反意詞為never，此兩詞常用于完成時。
注意：非延續(xù)性動詞的否定形式可以與表示延續(xù)時間的狀語連用。即動作不發(fā)生的狀態(tài)是可以持續(xù)的。
（錯）I have received his letter for a month.
（對）I havent received his letter for almost a month.
