2.15 Grammar 2笔记答案
【现在完成时的用法】
1、表示过去已完成的动作对现在有影响。

2、表示动作从过去开始，持续到现在，并且仍有可能继续下去。

3、表示动作从过去开始，到现在发生了多少次。

【现在完成时的时间状语】
1.①He’s already come back, ________ he? 答案：hasn’t
②He’s already late,_______ he? 答案：isn’t
2.He hasn’t finished his homework _________. 答案：yet
→ Has he finished his homework _________? 答案：yet
→ Yes, he has. / No, he hasn’t. =★____________. / No, __________.还没。

答案：Not yet./ No, not yet.
★表格里填“否定句”、“疑问句”
【例题精讲】①already ②yet ③yet ④yet ⑤C
3.never They have never _______ to the USA, _______ they? 答案：been; have
★___________从没。

答案：No, never.
5.表格第一行现在完成时；第二行一般过去时
e.g. I have had breakfast. 否定：I _____________ breakfast. 答案：haven’t had
I had breakfast. 否定：I_____________ breakfast. 答案：didn’t have
6. I haven’t seen them ____________ (recent). 答案：recently
★There _____________ (be) many changes in recent years. 答案：have been
8.表格第一行一般过去时；第二行现在完成时
★在过去的三年里，在近三年里in / during / over the past / last three years
13.★e.g. I have watched TV for an hour. ___________ have you watched TV?答案：How long ★Simon is in Grade 8. He__________(study) in Sunshine Primary School for six years.
答案：studied
14.e.g. Simon ________(study) in Sunshine Middle School since two years ago / since 2018.
答案：has studied
★He __________ (leave) the village 18 years ago and I __________ (not see) him since then.
答案：left; haven’t seen
【例题精讲】答案：A
用for和since填空：①for ②since ③for ④since ⑤for ⑥since
17.答案：D
现在完成时使用注意点：
★1. I _____________(go) to the USA twice last year. 答案：went
★2. -When _________ you __________(watch) it? 答案：did; watch
★3. Yang liwei ______________(be) a pilot for ten years. 答案：was
4. I ______________(read) three books these days. 已经看了答案：have read
I ______________(read) the book these days. 一直在看答案：am reading
【习题】随堂检测
1.recently
2.haven’t finished
3.have been
4.have finished 5-10.BADDBD。