(共44张PPT)
Unit 2 How often do you exercise
人教版八年级上册
SectionA SectionA2d
Grammar Focus-3c同步课件
Learning objectives
1. 掌握频率副词及频度词组的用法。
2. 能够使用以how often引导的特殊疑问句询问活动频度，并进行回答。
3. 加深对一般现在时的了解与掌握，尤其第三人称单数的谓语动词和助动词的运用。
4. 通过调查与讨论，了解更多闲暇活动，丰富课余生活。
Look at the picture and answer:
dancing
What are they doing
They are .
swing dance
(摇摆舞)
Warming-up
Claire
摇摆舞属于爵士乐的一个分支，又称“摇摆爵士舞”，初现于20世纪早期的美国，并于20至50年代逐步发展成为一个独立的舞蹈分支，其音乐由爵士（Jazz）和蓝调(Blues)音乐演变而来，有摆荡的感觉，故而得名。
在美国，摇摆舞在不同地域有多种不同的形式，其中最为著名的是一种名为“林迪舞”（Lindy Hop）的男女双人舞。除此之外，摇摆舞还有吉特巴(Jitterbug)，查尔斯顿(Charleston)、巴布阿(Balboa)、东岸摇摆舞(East Coast Swing)和西岸摇摆舞(West Coast Swing)等形式。
swing dance
piano lesson
dance lesson
play tennis
Wednesday and Friday
Tuesday
Monday
Claire and Jack are talking about weekend activities.Listen and match.
How often does Claire have dance lessons
2. How often does Claire have piano lessons
3. What kind of dance is Clair learning
4. Who will Claire play tennis with
She has dance lessons once a week,every Monday.
She has piano lessons twice a week, on Wednesday and Friday.
She is learning swing dance.
Her friends and Jack.
摇摆舞
Read again and answer the questions.
Jack: Hi, Claire, are you free next week
Claire: Hmm…next week is quite full for me, Jack.
Jack: Really How come
Claire: I have dance and piano lessons.
Jack: What kind of dance are you learning
Claire: Oh, swing dance. It’s fun! I have class once a week, every Monday.
adj. 空闲的
adj. 忙的；满的；充满的
为什么呢？/怎么会呢？，用来询问
事情的缘由或状况
哪种类型的……
摇摆舞
Role-play the conversation.
2d
Jack: How often do you have piano lessons
Claire: Twice a week, on Wednesday and Friday.
Jack: Well, how about Tuesday
Claire: Oh, I have to play tennis with my friends.
But do you want to come
Jack: Sure.
……怎么样？
不得不
Hmm … next week is quite full for me, Jack.
full adj.
① 忙的 = busy 反义词：free 空闲的
His life is too full to find time for hobbies.
他的生活太忙碌了，没有业余爱好的时间。
② 吃饱了的 反义词：hungry
③ 满的，充满的 反义词：empty 空的
be full of... = be filled with... 充满...，装满...
The classroom is full of students. 教室里满是学生。
= The classroom is filled with students.
How come you like this picture
你为什么喜欢这幅画？
How come you don’t like her
你为什么不喜欢她？
Why don’t you like her
后接疑问语序的句子
后接陈述语序的句子
How come 为什么？ / 怎么会？
I have dance and piano lessons.
have lessons 上课
have a / an ... lesson 上……课
We have four lessons in the morning.
我们上午有四堂课。
teach sb. a lesson 给某人一个教训
The accident taught me a lesson I’ll never forget.
那次事故给我的教训我永远都不会忘记。
sure ① adv. 当然 = of course / certainly
—Can I use your pen —Sure.
② adj. 确定的
确信 be sure of
be sure to do
be sure + that 从句
弄清楚 make sure of
make sure about
make sure +that 从句
Sure.
You may be sure of his honesty. 你可以确信他的诚实。
= You may be sure that he is honest.
He is sure to be back soon. 他一定会很快回来。
She made sure that she turned off the light. 她确定她关灯了。
主语是人，主语感到有把握、确信
—Excuse me, can I ask you some questions
—_____
A. Sure, go ahead. B. Congratulations!
C. That’s right. D. It doesn’t matter.
开始
一分钟倒计时
50
40
60
30
20
10
Read the conversation loudly.Then role play in pairs.
Jack: Hi, Claire, are ..
Claire: Hmm…....
Jack: Really How come
Claire: I have ....
Jack: What ...
Claire: Oh, .... It’s ...! I ....
Jack: How often...
Claire: Twice a week, ....
Jack: Well, ...
Claire: Oh, I .... But ...
Jack: Sure!
Role play
1. 你通常在周末做什么？
______ ___ you ______ do on weekends
2. 我总是去运动。 I ______ _______.
3. 他们在周末做什么？
______ ___ they ___ on weekends
4. 他们经常帮助做家务。
They _____ help with __________.
5. 她在周末做什么？
What _____ she ___ on weekends
usually
What do
always exercise
What do
do
often
does
do
housework
Practice
6. 她有时候去购物。She _________ _____ ________.
7. 你多久去看电影一次？
_____ _____ do you go to the ______
8. 我可能一个月去看一次。
I go to movies maybe ____ ___ _____.
9. 他多久看一次电视
____ ______ does he watch TV
10. 他几乎不看电视。He ______ _____ watches TV.
11. 你去购物吗？ ___ ____ go shopping
12. 不，我从不去购物。
No, I _____ ____ shopping.
sometimes goes shopping
How often
movies
once a month
hardly ever
How often
adv. 大概；或许；可能
Do you
never go
What do you usually do on weekends I always exercise.
What do they do on weekends They often help with housework.
What does she do on weekends She sometimes goes shopping.
How often do you go to the movies I go to the movies maybe once a month.
How often does he watch TV He hardly ever watches TV.
Do you go shopping No, I never go shopping.
齐读左边的问句，划出助动词和主语。
一般现在时中什么时候用do或does
在一般现在时疑问句中，当主语为第二人称或第三人称复数时，则助动词用do.
当主语为第三人称单数时，则助动词用does.
Grammar Focus
经常性：经常发生的动作，如每天起床、吃饭、上学，一个星期去几次超市或新华书店等。
规律性：在生活中，有的事情是有规律的，有的是偶尔做几次。
习惯性：这个动作经常发生，是一般情况而不是具体的某一次。
真理性：有些动作或状态是永恒的，比如长江向东流、地球绕着太阳转，比如谚语中举的事例、文学作品中描绘的事例，像“好马不吃回头草”等等。
什么时候用一般现在时？
当主语是第三人称单数时
疑问句中人称主语与助动词的搭配
一般疑问句： Do+主语+动词原形+其它？
特殊疑问句：特殊疑问词+一般疑问句.
一般疑问句：Does+主语+动词原形+其它
Does he often watch TV
What does he often do in the evening
当主语不是第三人称单数时
特殊疑问句：特殊疑问词+一般疑问句.
Do you play basketball
What do you do on weekends
一般现在时
What do you usually do on weekends I always exercise.
What do they do on weekends They often help with housework.
What does she do on weekends She sometimes goes shopping.
How often do you go to the movies I go to the movies maybe once a month.
How often does he watch TV He hardly ever watches TV.
Do you go shopping No, I never go shopping.
齐读右边的答句，划出动词。
Grammar Focus
当主语是第三人称单数时
肯定句中不同人称对应的动词变化
主语+动词原形+其它.
主语+动词第三人称单数形式+其它.
She sometimes plays soccer.
当主语不是第三人称单数时
I always go to the movies on Sunday evening.
一般现在时
三单形式构成
情况 构成方法 例词
一般情况 加 -s clean-cleans;
jump-jumps
以辅音字母+o结尾的词 加 -es go-goes; do-does
以s，sh，ch，x等结尾 加 -es watch-watches; wash-washes
以辅音字母+y结尾的词 变y为i再加es study-studies; fly-flies
不规则变化 背记 have-has; be-is
What do you usually do on weekends I always exercise.
What do they do on weekends They often help with housework.
What does she do on weekends She sometimes goes shopping.
How often do you go to the movies I go to the movies maybe once a month.
How often does he watch TV He hardly ever watches TV.
Do you go shopping No, I never go shopping.
齐读右边的答句，划出表示频率的词或词组。
Grammar Focus
频度副词表示某一动作或状态出现的频率，即在一定时间内某一动作或状态重复出现的次数，常用来回答how often的提问。
I always do exercise.
I often go to the movies.
I never cry.
always
usually
often
sometimes
hardly ever
never
0 %
100 %
频度副词(frequency adverb)
I always exercise.
They often help with housework.
She sometimes goes shopping.
He hardly ever watches TV.
I never go shopping.
仔细观察频率副词的位置，你发现了什么？
频率副词通常在实义动词之前
频度副词的位置Ⅰ
I’m always happy to see her.
She is sometimes very busy.
I will never forget it.
仔细观察频率副词的位置，你发现了什么？
频率副词用在be动词，助动词或情态动词之后。
频度副词的位置Ⅱ
次数的表达
一周一次
一周两次
一周三次
一次 once
两次 twice
三次及以上:
基数词+times
如：four times
once
twice
three times
four times
five times
1 2 3 4 5
1 2 3 4 5
1 2 3 4 5
1 2 3 4 5
1 2 3 4 5
一周一次
一周两次
一周三次
一个月一次
一个月两次
一年五次
twice a month
twice a week
three times a week
once a month
once a week
five times a year
练习
每天
每周
每年
每月
每个早上
每周末
every morning
every week
every year
every month
every day
every weekend
其他时间短语
I exercise three times a week..
We play chess once a week.
I ride my bike every day.
Once a month, she goes shopping.
仔细观察频率副词短语的位置，你发现了什么？
频率副词短语通常在句末，有时也在句首。
频率短语的位置
1. 与how相关的疑问词组的用法
how often 多久一次，询问频率。答：twice a week 等
far 多远，询问距离。答：ten minutes’ walk 等
much ①多少，与n[U].连用询问数量； ②询问价格
many 多少，后接n[C].复数
long 多久，询问时间多长。答：for / about+ 一段时间
soon 过多久以后，询问时间多久。答：in+ 一段时间
拓展
2. sometimes adv. 有时
sometimes 有时 adv. 表示事情发生的频率，提问用how often
some times 几次 / 倍 名词短语 表示次/ 倍数，提问用how many times
sometime 某个时候 adv. 指将来或过去不确定的时间，提问用when
some time 一段时间 名词短语 提问用 how long
I sometimes have to work late. 我有时得工作到很晚。
Tom has been to Nanjing some times. 汤姆去过南京几次。
I saw him sometime last summer. 我去年夏天某个时候见过他。
I’ll stay here for some time. 我将在这里待一段时间。
巧记 sometimes, some times, sometime与some time
“有时”相聚加s（sometimes）,
“几次”分开带s（some times）。
相聚为“某时（sometime）”，
分开“一段时间（some time）”。
3. hardly ever 几乎从不
hardly adv. 几乎不 = seldom / almost never
She hardly (ever) calls me. 她几乎从不给我打电话。
I can hardly think of her. 我几乎想不起来她。
注意：
① hardly本身表否定含义，不能再与否定词连用；
② 表示频率，常位于实义动词之前，系动词、助动词、情态动词之后。
拓展：hardly 表示否定意义，用于反意疑问句时，附加疑问部分用肯定形式。
Mary hardly knows about you, does she
玛丽几乎不了解你，是吗？
They can hardly do housework, _____ _____
他们几乎不会做家务，是吗？
can they
hardly adv. 几乎不，简直不（表否定意义）
hard ① adv. 努力地；大量地
work hard 努力学习、工作
rain hard / heavily 下大雨
② adj. 困难的；硬的
It’s hard to work out the problem.
辨析：hardly 与hard
How often _____ he play soccer
_____ you drink milk
How often ____ they stay up late
_____ Sue eat a healthy breakfast
How often ____ you eat apples
____ your parents play cards
does
do
Do
Does
Do
do
Complete the questions with do or does. Then match the questions and answers.
3a
a. Yes. She usually does.
b. Hardly ever. I don’t like them.
c. He plays at least twice a week.
d. No, they don’t. They’re too busy.
e. Never. They always go to bed early.
f. Yes, I do. Every day.
至少；不少于；起码
答案：1. c 2. f 3. e 4. a 5. b 6. d
at least “至少，不少于；起码”，副词词组，指在数量或程度上。
Questions:
__________________________________
(how often / help with housework)
2. __________________________________
(what / usually / do / weekends)
3. ___________________________________
(how often / best friend / exercise)
4. ___________________________________
(what/ usually / do /after school )
How often do you help with housework
What do you usually do on weekends
How often does your best friend exercise
What do you usually do after school
Use the words given to write questions. Then ask and answer them with a partner.
3b
How often do you… Names Frequency
read English books Lin Ying twice a week
What can you do to improve your English Add more things to the chart. Then ask your classmates the questions and find the best English student.
3c
How often do you… Names Frequency
read English books Lin Ying twice a week
Su Lei
Hu Tao
once a week
Hu Tao
Ma Li
twice a week
every day
twice a month
write to a pen pal
watch English movies
go to English club
keep an English diary
Sample
Give a report like this:
Lin Ying reads English books twice a week. Hu Tao goes to English Club twice a week. Su Lei watches English movies once a week. Ma Li writes to a pen pal twice a month. Hu Tao keeps an English diary every day. I think Hu Tao is the best English student.
Then give your own report on your group.
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