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广州版8年级英语上册U5语法现在完成时态

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发表于 2020-7-7 11:16:08 | 显示全部楼层 |阅读模式

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广州,版,8年级,英语,上册,语法,现在,完成,
初二英语 八上U5专题学案
现在完成时态
Warm-up: Reading
I have learnt a bit of t’ai chi, and I really enjoy it. We’ve already learnt a lot about Chinese culture and history. The teachers have introduced us to Chinese painting as well. We’ve also tried to paint some pictures ourselves。 I haven’t had much success yet, but I’ll keep trying.”




1.掌握现在完成时态的用法
2.掌握时态的辨别
3.掌握常考动词过去分词的不规则变化
命题规律
一、重 难 点
1)现在完成时态的概念
2)重点:现在完成时态的结构与定义
3)现在完成时态中常见时间状语
4)难点:时态的辨别; already, yet, ever, never的区分
二、精讲点拨
1. 现在完成时定义和结构
基本结构
定义
(适用情况)
例句
常用提示词汇或时间状语


have/has +P.P
(动词过去分词)
1. 表示过去发生或完成的动作对现在的影响
A. She has already
finished her work.
B. My sister and I have just seen Avatar.(阿凡达).

already, yet, never, ever, just, for, since, these days, so far, up to now, in the past 2 years等
2. 表示动作从过去已经开始,一直持续到现在。
A. We have been here for six years.
B. Janet has worked for this factory since 1996.
PS: 1)当主语是第三人称单数时用has,其余人称用have.
2)过去分词:规则动词的过去分词构成与动词过去式相同, 不规则动词需要特殊记忆。

【Ex1】1.参照列子写出下列动词的四种形式
e.g. come- came- come- comes- coming
1. rain -     -     -     -     
2. try -     -     -     -     
3. destroy -     -     -     -     
4. fly -     -     -     -     
5. begin -     -     -     -     
6. carry -     -     -     -     
7. shop -     -     -     -     
8. drop -     -     -     -     
2.选用have或has填空。
1. I      visited the museum.
2.      you ever been to Beijing?
3. My mother      made a lot of apple juice.
4.      he watched the film?
5. Mrs Brown      bought some read and milk.
2. 句式——肯定句、否定句、疑问句形式
句式
结构
例句
肯定陈述句
主语+have/has+p.p
have visited Guangzhou.
has visited Guangzhou.
否定陈述句
主语+haven’t/hasn’t+p.p
haven’t visited Guangzhou.
hasn’t visited Guangzhou.
一般疑问句
Have/Has+主语+p.p
1. Have they visited Guangzhou?
2. Has he visited Guangzhou?
回答
Yes, 主语+have/has.
No, 主语+haven’t/hasn’t.
, they have. No, they haven’t.
, he has.  No, he hasn’t.
特殊疑问句
疑问词+have/has+主语+p.p?
have they visited?
has he visited?
PS: 缩略形式:
I have = I’ve       you have = you’ve     we have = we’ve   
they have = they’ve    he has = he’s       She has = she’s   
it has = it’s       have not = haven’t     has not = hasn’t

【Ex2】按要求改写下列句子
1. Peter has told me the news. (改为否定句)
_________________________________________________________________
2. Edwin and Alex have watched the football game. (改为一般疑问句并做肯定和否定回答)
_________________________________________________________________
_________________________________________________________________
3. Timmy hasn’t come here yet. (改为肯定句)
_________________________________________________________________
3.用法注意
1) 表示动作已完成、结束,但对现在有影响。

We have finished the work. 我们已经完成了工作。
He has returned from abroad. 他已从国外回来。
2) 表示发生在过去某一时刻并持续到现在的情况,常与“for+一段时间”,since+ 过去某个时间点” 等时间状语连用。
Mary has been ill for three days. 玛丽病了三天了。

I have lived here since 1998. 从1998年起我就一直住在这里。
3) 表示“已经” 等意思,常与already, yet, just, before等时间状语连用。
He has already got two film tickets. 他已经弄到两张电影票了。

We have seen that film before. 我们以前看过这部电影。
4) 表示“曾经”、 “(做过多少)次”,与ever, never, twice等表示频率的时间状语连用。

Have you ever been to Zhongshan? 你去过中山吗。

I have never seen such s tall building. 我从未见过那么高的建筑物。
5) 与包括现在时间在内的时间状语连用,如now, these days/ weeks/ months, so far等。
It has been very cold these days. 这些天天气很冷。

4. already, yet, ever, never
副词already(已经), yet(仍未,已经), ever(曾经), never(从不)常用于现在完成时句中。
1) already(已经), 一般用于肯定句,位于句中或句末;可放在助动词 与过去分词之间,也可放在句末。

2) yet 一般用于否定句和疑问句,位于句末。
在疑问句中意为“已经”,否定句的意为“仍未
3) ever 表示“曾经”。用于陈述句或疑问句。
4) never 表示“永不,从不”,是一个否定词。
用于陈述句,翻译疑问句(后半部分用肯定)

【Ex3】 单项选择
1) The boy over there has ________ finished his homework.
A. yet      B. ever     C. never    D. already
2) We have ________ seen the film UP(飞屋环游记),have we?
A. already    B. never    C. ever     D. yet
3) The boss will arrive in an hour, but the clerks haven’t got everything ready________.
A. ever     B. already    C. yet      D. never
4)—Have you ________ been to Berlin?
—No, not________.
A. never; already  B. yet; never  C. already; ever  D. ever; yet
5)It’s twelve o’clock at night, but he is ________ working.
A. still      B. ever    C. already    D. yet

中考聚焦】has been to & have been to区别
1. /has been to 去过某地(现在已回来)
例如:I have been to Haiwaii.
2. /has gone to 去了某地(还没回来)
例如:She has gone to Hawaii.
除了上述两个短语,我们还常见到“has been in+ 地点+ for + 一段时间”的句式,意为“待在某地多长时间了”,请看例句:
This lady has been in Germany for seven years.

【Ex4】根据中文上下文,选用has been to, has gone to 或 has been in 填空。。                     《广州版8年级英语上册U5语法现在完成时态.电脑版点击下载文档可以下载此文章》

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