2020-2021学年Section A图片ppt课件

这是一份2020-2021学年Section A图片ppt课件，共20页。PPT课件主要包含了现在完成时，句中动词的特点，Exercises，have had，bought，miss，has been等内容，欢迎下载使用。

Sectin A 3Grammar fcus – 4c
1. Hw lng have yu had that bike ver there? I’ve had it fr three years.2. Hw lng has his sn wned the train and railway set? He’s wned it since his furth birthday.3. Have yu ever played ftball? Yes, I did when I was little, but I haven’t played fr a while nw.
表示从过去已经开始持续到现在的动作或状态，可以和表示“从过去某一时刻延续到现在的一段时间状语”连用，如“fr+时间段”、“since+过去时间点”、“since+过去时的从句”、“since+一段时间+ag”。且fr与since引导的时间状语可以相互转换。
Present Perfect Tense
e.g. My uncle has wrked at this factry fr ten years.= My uncle has wrked at this factry since ten year ag. I’ve lived here since 1990． 自从1990年以来我就住在这里。   I haven’t seen him fr three years. 我三年没有看见他了。  
含有fr，since的现在完成时的用法歌诀: 过去的动作或状态，一直持续到现在，fr、since 把时间带。
She’s been at this schl since five years ag.   自从五年前以来她就在这个学校。  
此种用法中表示持续性的动作或状态的 动词必须是延续性动词(否定句除外)。1. 这本书我买了5年了。 I have bught the bk fr five years. ( ) I’ve had the bk fr five years. ( )
2. 你哥哥参军多长时间了？ Hw lng has yur brther jined the army? ( ) Hw lng has yur brther been in the army/been a sldier? ( )
1. 转换为相应的延续性动词，用于现在完成时。 brrw — keep buy — have put n — wear catch a cld — have a cld get t knw — knw get t sleep — sleep
非延续性动词和延续性动词之间的转换
2. 转化为“be + 形容词/副词/介词/名词”begin / start — be n g ut — be ut clse — be clsed pen — be pen get t/arrive/reach — be (in)die — be dead leave — be away
finish — be verfall sleep — be asleep jin — be in/be a member f becme — be make friends — be friendscme/g/ — be + 相应的介词短语
1. She _______ this bk fr nearly three weeks. A. has brrwed B. has lent C. has bught D. has kept 2. Ten years has passed ____ the CCTV event Peple Wh Mved China tk place in 2002.A. when B. while C. befre D. since
Rewrite the sentences using fr r since.
Jim is in Japan. He arrived there three days ag.2. They are very hungry. Their last meal was ten hurs ag.
They have been hungry fr ten hurs/since ten hurs ag.
Jim has been in Japan fr three years.
3. I have a camera. I bught it in 2009.4. I knw Anna. I first met her three years ag.5. Linda is ill. She became ill n Mnday.
I have had a camera since 2009.
I have knwn Ann fr three years/since three years ag.
Linda has been ill since Mnday.
Fill in the blanks with the crrect frms f the verbs in brackets.
I _______________ (never be) t the water park befre. I want t _____ (g) next mnth befre the weather gets t cld.2. They _________________ (never wn) any pets, but they ___________ (always want) t have a dg.
have never been
have never wned
always want
3. We _________ (have) a pian since last Nvember. We _______ (buy) it frm the Li family when they mved t the US last year.4. Cathy and Amy ____________ (nt be) back t their hmetwn fr tw years. They ______ (miss) their hmetwn a lt and hpe t visit the place next year.
haven’t been
5. This museum _________ (be) here fr ver 20 years. It _____ (be) ne f the ldest buildings in this small twn.　　
Fill in the questins and ask tw students. Then cmplete the chart.
1. D yu have a(n) _______? Hw lng have yu had it?2. D yu wn a(n)_______? Hw lng have yu wned it?