人教新目标 (Go for it) 版八年级下册Section A一等奖ppt课件

这是一份人教新目标 (Go for it) 版八年级下册Section A一等奖ppt课件，共26页。PPT课件主要包含了Revision ，助动词，for，since，ever，just，already，yet，句中动词的特点，have had等内容，欢迎下载使用。
现在完成时： 表示过去发生或已经完成的某一动作对现在造成的影响或结果，或从过去开始一直延续到现在的动作或保存的状态。
结构： 主语+ have / has + 动词的过去分词
一般疑问句： have / has … ? Yes, I have. N, I haven’t. Yes, she has. N, she hasn’t.
1. 现在完成时动词构成have /has + v 过去分词
haven’thasn’t
Have yu…?Has he…?
常与下列时间状语连用：just , already, yet,ever, never, befre, several times
1.过去发生的动作对现在造成的影响或结果。和already，never,ever,just,befre,yet等状语连用。
2.过去已经开始，持续到现在的动作或状态，常与fr或since引起的一段时间状语连用。
动词构成：have/has+v过去分词
have breakfast
I have just had my breakfast.
I’m nt hungry nw
mved herein 2004
I still live here
I have lived here fr three years.
I have lived here since 2004/three years ag.
( 1).fr+表示一段时间的短语 ( 2).since+表示过去时间点的词语 ( 3).since+表示过去时间的时间状语从句
eg.I have been a teacher ______ a year. He has been at this schl _______ 1992. We have learned 1,000 English wrds _______ we came t this schl.
现在完成时句中常见的时间状语A.表示从过去一直持续到现在, 不能是具体 的过去时间。
e.g. Have yu _____been t Japan? I have _____ finished my hmewrk. I have finished my hmewrk ______. I haven’t finished my hmewrk ____.
B. just, already, yet, befre/ ever, never有此类副词时,常强调动作完成,不强调动作的持续.
have been in, have been t have gne t    
(1). Have (has) been in 意为“已经在某地呆了多长时间”，常与表示一段时间的状语连用。Mr. Brwn has been in Shanghai fr three days. 布朗先生来上海已经有三天了。   They have been in Canada fr five years. 他们到加拿大有五年了。   
(2). Have (has) been t 意为“曾经去过某地”，表示现在已经不在那里了。可与 just, ever, never 等连用。如：I’ve just been t the pst ffice.  我刚才去邮局了。    Have yu ever been t Hangzhu?  你曾经去过杭州吗？ Mary has never been t the Great Wall.  玛丽从未去过长城。   
(3). Have (has) been t 后面可接次数， 表示去过某地几次。如：I've been t Beijing three times.  我去过北京三次。    They have been t that village several times.  他们去过那个村庄好几次了。(4). Have (has) gne t 意为“到某地去了”，表示到了某地或正在去某地的途中。总之，说话时该人不在现场，一般不用第一、二人称代词作主语。如: —Where is Tm? 汤姆在哪里？   —He has gne t the bkshp. 他到书店去了。
Grammar Fcus
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
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.　　
4c 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?
选择fr或since填空：I have been here _____five mnths ag.2. He has been a sldier ____ abut tw mnths.3. Great changes have taken place _____ yu left.4. His grandpa has been dead ____ ten years.5. I have studied English ______ I was 12 years ld.6. It is tw years _________ I became a pstgraduate student.
练习题: It's a lng time since we ____ (meet) last, isn’t it?            2. --I knw yu ___________ (chse) a picture bk amng these.   --Yes, Have a lk at it, please.                3. S far, spaceships withut peple ___________ (reach) the mn and sme ther parts f the universe.               4. My father____ hme fr nearly three weeks. A. has gne away frm   B. has left C. has been away frm   D. went away                5. Mr. and Mrs. Green have_____ in China fr a week. A. been   B. gt   C. arrived   D. reached
have reached