资源简介

(共28张PPT)
Lead in
Definition
Structure
Adverbs of time
Past Participle
Change Rules
Exercise
ASsessment
Homework
Contents
能准确说出现在完成时的定义：理解其表示“过去动作对现在 的影响/结果”或“过去开始持续到现在的状态”。
能熟练掌握现在完成时的结构，能识别并运用现在完成时的常见 标志词，能掌握过去分词的变化规则。
通过梳理过去分词变化规律、总结时态用法，养成归纳整理知
识的学习习惯，提升自主学习能力。
5
Learningobjectives
By the enzdof thelassomI will beableto
He has lived in Guangzhou for 5 years.
2019-2024(持续状态)
中得
2019-2024
定义1:表示过去发生的或已经完成的动作对现 在 造成
的影响或结果。
或持续到将来
将来
· I have watched it twice.
·我已经看过2遍。(结果)
Definition 现在完成时定义
发生在过去
过去
现在
产生影响
定义2:表 示过去发生的动作或
状态，持续到现 在 ，并还有可 能持续下去
Definition 现在完成时定义
·I have been here for 3 years.
·How long have you been here
》肯定句
》主语+have/has +过去分词
(Past Participle)
》否定句
》主语+
haven't/hasn't+
过去分词
》疑问句
》Have/Has+ 主 语+过去分词
Structure 现在完成时结构
She hasn't finished her drawing.
还没有完成她的绘画作品。
We have visited the zoo twice this year. 今年我们已经参观过动物园两次了
Structure 现在完成时结构
肯定句
一般疑问句
Have you finished this report
你完成这份报告了吗
否定句
肯定回答：Yes, 主语+have/has.
Q:Have you finished your homework
A:Yes,I have.
否定回答：No, 主语+haven't/hasn't.
Q:Has she seen this movie
A:No,she hasn't.
现在完成时一般疑问句的构成
Structure
·They have studied English for 2 years.
· (从过去开始 →现在仍在学英语)
·This factory has been open for 10 years.
· (工厂10年前开业 →现在仍在运营)
for后面接的是时间段，表示某个动作或状态已经持续了一段时间。
Adverbs of time
for: (表示某段时间
现在完成时标志词
定句中，表示某事尚未发生或完成。
·He has already eaten breakfast.
· (他已经吃过早饭了。)
·Has she found her wallet yet
· (她已经找到钱包了吗 )
already:常用于肯定句中.
yet:常用于否定句，疑问句尾.
already: 用于肯定句中，表示某事已经发生或完成。yet: 用于疑问句和否
Adverbs of time
·1.since+ 时间点
·He has played the piano since childhood.(他从小就弹钢琴。)
·2.since+ 时间段+ ago
·They have owned this house since 10 years ago. (他们从10年前就拥有这套
房子了。)
·3.since+ 从句(从句用一般过去时)
since: (自 … 以来)since+ 时间点
· I have loved painting since I was a little kid.(我从小孩子时期就喜欢绘画。 )
Adverbs of time
例词 规律总结
读音规则
walk—walked—walked talk—talked—talked 一般直接加-ed
①清辅音后读/t/,如helped,
laughed②浊辅音、元音后读 /d/,如lived,stayed③/t/和/d/ 后读/1d/,如needed,started
live—lived—lived dance—danced—danced 以不发音的e结尾的加-d worry—worried—worried hurry—hurried—hurried 以辅音字母加y结尾的变y为i 再加-ed plan—planned—planned shop—shopped—shopped mix—mixed—mixed 以一个元音字母加一个辅音字 母(x除外)结尾的重读闭音 节双写结尾字母再加-ed
Past Participle Change Rules
过去分词的变化规则
变化类型 动词原形 过去式
过去分词
A-B-C write wrote
written
A-B-C drink drank
drunk
A-B-C hide hid
hid/hidden
A-A-A cut cut
cut
A-B-B bring brought
brought
A-B-B learn learned/learnt
learned/learnt
A-B-C become became
become
A-B-C forget forgot
forgotten
Past Participle Change Rules
过去分词的不规则变化
My parents have visited (visit)the Great Wall twice.
She has just finished (finish)her homework.
Have you ever been (be)to Japan
I_have_never seen_(see)such a beautiful sunset before. They have lived (live)in this city since 2010.
Excercise 用所给动词的适当形式填空
Excercise 现在完成时 ( Present Perfect Tense)
He has cleaned his room. (改为一般疑问句)
Has he cleaned his room
I have had this book for two weeks. (对划线部分提问)
How long have you had this book
She bought a new bike yesterday. ( 用 “already” 改写为现在完成时)
She has already bought a new bike.
I can share experiences of team activities in real-life contexts.
I can understand and recognize the importance of collaborative cooperation in team activities.
Self-assessment
I can acquire expressions related to team activities
through watching and listening activities.
Basic(基础) 整理10个课堂重点的 不规则动词(原形+过 去分词),填写在表 格中(示例已给出)。
为每个动词造1个现在完
成时句子，需包含至少1 个时间标志词(如ever、 since、for等 ) 。
Extend(拓展)
用3个现在完成时疑问
句采访家人(如父母、
兄弟姐妹),记录他们 的回答(用完整句子)。
Improving(提升)
Thanks for listening

展开更多......

收起↑