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课件网) Getting along 2 Unit Grammar In this class, we will master the use of the present perfect tense. use the present perfect tense to talk about your experience of sharing. learn to use for and since in the present perfect tense. Read the sentences from the reading passage and summarise the grammar rules. (a) The Giant has been away for a long time. (b) Since then, he hasn't seen a child there. 5 P23 Now find more sentences with these structures in the reading passage. (c) “I cannot understand why spring has not come since last year,” says the Giant. (d) I haven't heard that beautiful birdsong for a while. 表达某一行为或状态从过去某时间一直持续到现在，可以借助现在完成时。通常要与表示一段时间的时间状语连用，这类状语通常由 for 或 since 引导。 Watch the video and note the usage of present perfect with for and since. 根据时间轴和图片提示，借助since和for完成句子。 Past Hammy Present has had this job Monday Sunday has had this job for a week . Hammy has had this job since Monday . for + 时间段since + 时间点 “since + 时间段 + ago”与“for + 时间段”有时可互换 a week ago since Thursday Hammy Sunday hasn’t sold any popcorn hasn’t sold any popcorn for three days . since Thursday three days ago since Hammy had to eat all the popcorn. Thursday Hammy Sunday has got a stomach ache has got a stomach ache for three days . since Thursday since作连词时，主句通常用现在完成时，从句通常用一般过去时。 three days ago since hasn’t sold any popcorn since he ate all the popcorn three days ago Hammy has got a stomach ache for three days . since Thursday three days ago since since he ate all the popcorn three days ago 在对现在完成时的时间状语进行提问时，我们常用_____ how long Hammy got a stomach ache How long has Hammy has got a stomach ache for three days . since Thursday three days ago since since he ate all the popcorn three days ago Hammy got a stomach ache How long has for + 时间段 since + 时间段 + ago since + 时间点 since + 从句（一般过去时） 提问以上部分时，常用how long Conclusion ① I stayed in the hotel for a week last summer. ② I have stayed in the hotel for a week now. ③ I will stay in the hotel for a week next month. 1. 在表示某一行为或状态持续多长时间时，根据终止时间的不同，选用不同的时态。 去年夏天我在这家酒店住了一周。 (讲去年夏天发生的事情，故用过去时) 迄今我已在这家酒店住了一周了。 (表示到现在为止已经住了一周，故用现在完成时) 下个月我要在这家酒店住一周时间。 (讲下个月的事情，故用一般将来时) 2. 在现在完成时的句子中，表示持续的动作或状态时，动词通常与表示时间段的时间状语连用；而表示动作已经完成时，动词不能与表示时间段的时间状语连用。 ① Tom has been here for two hours. ② Tom has just come. Tom 已经来了两小时了。 Tom 刚到。 3. 除表示经历、持续至今的行为或状态外，现在完成时还表示到目前为止量的累积。 ① I have learnt twenty English songs. ② I have collected 300 stamps. 我已经学会了20首英文歌曲。 我已经收集了300枚邮票。 ① I have seen that movie many times. ② I saw that movie last week. 现在 ... ...
