8B Unit 3 Online tours Revision(Grammar)(共22张PPT)

(共22张PPT)
8B Unit3 Revision
（Grammar）
01 Watch a video
Have you ever been to a music festival
I’ve been to many.
I’ve never been to one.
We use the present perfect to talk about a past experience without saying when it happened.
I went to a few last year.
To say when something happened, use the past simple.
I’ve already been to three.
He hasn’t been to a festival yet.
He’s just bought his ticket.
We also use already, yet, and just with the present perfect.
I haven’t been to any since then.
I’ve wanted to see what they’re like for such a long time.
We can use since and for with the present perfect to talk about a time that started in the past and continues to the present. Since is followed by the beginning of a time period. For is followed by a period of time.
一般过去时
构成：主语+动词过去式
表示过去发生的动作或者存在的状态。
I got up at six this morning.今天早上我6点起床的。
2. 表示过去习惯或者经常发生的动作。
I often went to school by bus last year. 我去年经常乘公交车上学。
3. 表示主语过去的特征或性格。
She was good at English in middle school. 中学时她英语学得很好。
现在完成时
构成：have/has+ 动词的过去分词
过去发生的动作或存在的状态对现在造成的影响或者结果。
I have lost my phone. 我的手机丢了。
2. 过去已经开始，一直持续到现在的动作或者状态。
I have been in Suzhou for 15 years. 我已经在苏州十五年了。
延续性动词与非延续性动词
动作按其动作发生的方式，发生的过程的长短可分为延续性动词与非延续性动词。
延续性动词表示能够延续的动作的动词。
非延续性动词也称为终止性动词或者瞬间动词，这类动词表示不能延续的动作，这种动作发生之后立即结束。
非延续性动词在现在完成时中，不能与一段时间的状语连用，要改为延续性动词。
He has come.（ 他已经来了）
He has come here for two hours.
He has been here for two hours.
The dialogue
begin——be on
leave——be away
See Page 28&Page134
难点解释（difficulties）
一般过去时和现在完成时的区别主要体现在以下几个方面：
时间状语不同
一般过去时
现在完成时
表示过去某时发生的动作或者存在的状态，与现在没有联系。
We visited Beijing last summer.
常与模糊的时间状语或无时间状语（表示从过去开始持续到现在的动作或状态）连用。
The countryside has changed a lot in the past few years.
(last summer为具体的过去时间,因此用一般过去时)
( in the past few years为模糊的时间，因此用现在完成时)
难点解释（difficulties）
一般过去时和现在完成时的区别主要体现在以下几个方面：
与现在的联系不同
一般过去时
现在完成时
表示过去某时发生的动作或存在的状态,与现在没有联系
I read the novel last week. 我上星期看了这部小说。
表示过去发生的动作对现在造成的影响或结果。
I have read the novel.我看过这部小说。
(只说明上星期看过这部小说,不涉及现在的情况)
(强调对现在的影响,即我了解这部小说的内容)
难点解释（difficulties）
一般过去时和现在完成时的区别主要体现在以下几个方面：
与时间段连用的不同
一般过去时
现在完成时
与一段时间状语连用表示动作没有持续到现在
He lived here for 6 years when he was young.
与一段时间状语连用表示动作持续了现在
He has lived here since 1985.
(他现在不住在这里了)
(他现在还住在这里)
难点解释（difficulties）
一般过去时和现在完成时的区别主要体现在以下几个方面：
与相似状语连用的不同
一般过去时
现在完成时
in the past“在过去”可以作一般过去时的时间状语
People lived in small houses in the past.
过去人们住在小房子里。
in/during/over the past/last few years“在过去的几
年里”为现在完成时的时间状语
China has experienced great changes in the past
few years.在过去的几年里,中国经历了巨大的变化。
Differences between these two tenses
时态 结构 定义 标志词
一般过去时 （the simple past tense）
现在完成时 （the present perfect tense）
动词过去式
have/has+动词过去分词)
过去发生的动作，与现在无关。
过去发生的动作，与现在有联系。
yesterday, last year, in May, in+过去某一年，一段时间+ago, just now等
already, yet, just, ever, never, recently,before, these years, so far, up to/till now, in/during/over the past /last few/three years， several times, for +一段时间, since+过去的时间点等连用。
用现在完成时的句型
This is the +最高级+名词+that …结构中的从句部分用现在完成时。
It is the first/second time that…结构中的从句部分，用现在完成时。
Changes to Suzhou
Suzhou is a beautiful city with many places of interest. In recent years, a lot of changes ____________ (take) place in Suzhou. In the past, the roads_________ (be) narrow and dirty, the rubbish ________(be) everywhere. Now the streets are wide and clean. There are many shops and tall buildings on both sides of the trees. People __________ (move) into new flats. Moreover, transport _____________(become)much easier. The light rail ____________ ( be) in service for 10 years.
Suzhou is developing so fast. I am so proud of living in Suzhou.
has become
were
was
have moved
have taken
has been
中考链接
1. （2021 南京）I saw Julia in April and I ________ her since then.
don’t see B. didn’t see C. won’t see D. haven’t seen
2. （2021 连云港）David Attenborough ________ 40 documentaries over the past 67 years. A life on Our Planet is his latest work.
makes B. made C. has made D. is making
3. （2021 扬州）—Have you watched the film Gulliver’s Travels
—Yes. I ________ it during the Spring Festival. What about you
watch B. watched C. will watch D. have watched
4. （2021 苏州）The documentary A Plastic Ocean is so impressive that I ________ it several times so far.
A. watched B. watch C. have watched D. will watch
5. （2021 盐城）During Da Ma’s Last visit, he ________ on 150 patients on the ORBIS plane.
A. operates B. is operating C. will operate D. operated
中考链接
6. （2021 襄阳）—Why are you in such a hurry
—Because the class ________ for ten minutes.
A. has been on B. have began C. is on D. began
7. （2021 贺州）China ________ great achievements in science and technology since 1978.
A. makes B. made C. has made D. is made
8.（2020 苏州）—Wow, you’ve made so much progress in drawing.
—Thanks. I ________ two online courses this winter holiday.
A. took B. will take C. take D. was taking
9. （2020 泰州）Some primary and secondary schools ________ winter sports to their courses since Beijing won the right to host the 2022 Winter Olympic Games.
added B. will add C. have added D. were adding
10. （2019 泰州）—Have you ever been to Shanghai
—Of course. Actually, I ________ there for six years but now I live in Taizhou.
worked B. was working C. would work D. have worked
Summary :一般现在时与现在完成时的区分
1. 判断是否有具体的表示过去的时间状语。
2. 判断是否强调动作对现在造成的影响。
3. 判断动作是否持续到了现在。
一般过去时
现在完成时
现在完成时
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