资源简介

(共33张PPT)
课型：语法课
课时：Grammar Focus
Unit 8
Making a Difference
Section A What can we do to help
行业PPT模板http:///hangye/
1
能够梳理和归纳包含for 和since的现在完成时的功能和意义，并在语境中准确理解和使用；能够了解现在完成时中与持续性时间状语连用的典型动词的特点（延续性动词）。（学习理解）
2
能够在较复杂的语篇语境中理解一般过去时和现在完成时的表意区别；实现语法知识向语言运用能力的转化，提升语言表达的准确性与规范性。（应用实践）
3
学生能够将所学语法知识迁移至多元真实生活场景中，结合自身经历与话题情境创造性地运用目标语法进行交流与表达，能自主设计并完成相关语言任务，提升语言综合运用与跨情境迁移的能力。（迁移创新）
教学目标
Lead-in
还记得现在完成时的主要用法吗？
Let’s listen and think!
Presentation
Have you been to our animal shelter before No, I haven’t. But one of my friends has volunteered here for a long time.
Has she ever done volunteer work Yes, she has. She has been a volunteer at a nursing home since last August.
How long have you been a volunteer I have been a volunteer here for a few months.
How long has he worked as a volunteer at the museum He has volunteered here since his summer holidays started.
Read the sentences. How are for and since used differently
4a
Let’s learn.
We have been here
for fifty years.
We have been here
since 1970.
for + 一段时间
since + 过去时间
50 years
past
now
50 years
past
now
时
间
状
语
Let’s learn.
Since he left school, he has worked as an English teacher.
since + 从句（一般过去时）
has worked
left school
now
时
间
状
语
Let’s learn.
现在完成时时间状语总结：
for + 一段时间
since + 过去时间点 / 时间段 + ago / 从句
already / just / never / yet / ever
最近：recently / in recent …
迄今为止：so far / up to now
over / in the past / last + 一段时间
Let’s learn.
你知道这些结构有什么区别吗？
1. I have been to the beautiful city twice.
2. He has gone to his hometown alone now.
3. She has been in China for five years.
Let’s learn.
have gone to
have been to
去了
到过
已经去了某地，还没回来
曾经到过某地，已经回来
have been in
已经在
在某地一段时间
Have you seen the movie yet
Yes, I have.
When did you watch it
I watched it yesterday.
Let’s learn.
Let’s learn.
一般过去时 现在完成时
与现在没联系 与现在有联系
只表示过去发生的 动作或状态 表示过去发生的事情对
现在造成的影响或结果
Sorry, Jenny.
I’m late.
When did the film begin
The film has been on for 30 minutes.
OK, where’s Bob
He has been away for 20 minutes.
He left 20 minutes ago. Why
He got a call from his mom.
What a pity!
It’s a great film.
Let’s learn.
-Sorry, Jenny. I’m late. When did the film begin
-The film has been on for 30 minutes.
-OK, where’s Bob
-He has been away for 20 minutes.
-He left 20 minutes ago. Why
-He got a call from his mom.
-What a pity! It’s a great film.
Let’s learn.
延续动词
瞬间动词
The film has begun for 30 minutes.
The film has been on for 30 minutes.
Let’s learn.
延续动词
瞬间动词
He has left for 20 minutes.
He has been away for 20 minutes.
Let’s learn.
瞬间动词
延续性动词
动作不能延续，动作一旦发生就立即结束，并产生某种结果。
这类动词可以用于现在完成时，不能和for和since表示一段时间的状语连用。常见的有： buy, join, become, begin, come, go, die, leave, borrow
动作不但可以延续，而且可以产生持久的影响。
这类动词常用于表示一段时间的状语连用。常见的有： live, work, teach, study, stay, wait, sleep
Let’s learn.
瞬间动词转延续动词
leave → be away borrow → keep
buy → have begin → be on
die → be dead finish → be over
join → be in become → be
get to → be in leave → be away
fall asleep → be asleep
get married → be married
Practice
B. have; had
A. will; buy
C. were; having
D. did; buy
1. —What a nice watch! How long ____ you ____it
—For two weeks.
2. -Did you borrow the comic book from the library？
-Yes, I ____ it for three days. I’ll return it this afternoon.
C. have kept
B. kept
A. borrowed
D. have borrowed
Complete the sentences with the correct forms of the verbs in brackets and for or since.
4b
This college student enjoys volunteering for the army. She _________________________ (teach) English to the soldiers ____ three years.
I __________ (be) a member of the Red Cross for six years. I have made a lot of friends ______ I joined the organization.
Mr Wu has taught in a primary school as a volunteer _____ two years now. ______ he started working there, he __________ (help) many students.
The organization ___________ (train) over 6,000 volunteers ______ it began to offer classes three years ago.
has taught / has been teaching
for
have been
since
for
Since
has helped
has trained
since
Complete the passage with the correct forms of the verbs in brackets.
4c
I love being a volunteer! I _____________ (work) with a sports organization for almost three years now. Since I started, I ____________ (help) out at over ten different sports events. I __________ (make) many new friends and I even _________ (meet) many famous athletes. For example, I ______ (meet) two national football players from Argentina last month. They were at a stadium for a charity match. The stadium ______ (be) so big that they _____ (get) lost. I gave them directions and they _______ (smile) and ________ (thank) me warmly. I am proud to be a volunteer.
have worked
have helped
have made
have met
met
was
got
smiled
thanked
Let’s watch and learn!
Production
Work in groups. Interview your groupmates using the questions below. Share the answers with the class.
4d
How long have you known your best friend / ...
had your favourite toy / ...
lived in your neighbourhood / ...
How long have you known your best friend
I've known him for ten years! How long have you known your best friend
Exercises
— Have you been to our museum before
— No, I haven’t. But I have volunteered here ________ a long time.
A．since B．for C．in D．at
2
My cousin has known her best friend ________ she was ten years old.
A．since B．for C．in D．on
3
I ________ many other terrible moments since then.
A．experienced B．has experience C．experiences D．have experienced
1
Multiple choice.
1. My little brother __________ (fall) over many times since he started learning to ride a bike.
2. We have not ______ (see) each other for a long time.
3. She spends her free time _____________ (volunteer) for public activities.
4. When you are kind to others, they will also treat you ________ (warm) in return.
5. The organization ___________ (train) over 6,000 volunteers since it began to offer classes three years ago.
6. The wind __________ (blow) for three hours, and it is still strong.
has fallen
用单词的适当形式填空。
seen
volunteering
warmly
has trained
has blown
Homework
1. Memorize the new words and phrases.
2. Practice the conversations with your partner using the
grammar we have learned .
3. Finish the exercises.
Homework
Thanks!

展开更多......

收起↑