(共27张PPT)
人教新目标版 八年级上册
Unit 2 How often do you exercise
Section A Grammar Focus-3c
Learning objectives
Knowledge objectives:
1. 熟练掌握以下词汇和短语
maybe; least; at least; stay up late; go to bed early; eat a healthy breakfast; play sports.
2. 熟练掌握以下句型
1. —What do you usually do on weekends —I always/sometimes/...
2. —How often do you... —I... once a month/...
3. —Do you... —Yes，I often/usually.../No, I never...
Skill objectives:
1. 询问和回答活动，学习如何谈论活动的频率。
2. 正确、自由地使用诸如“once a week”之类的表达。
3. 学会使用频度副词进行日常交流,能听懂并表达how often等引导词的日常生活习惯话题。
Emotional objectives:
通过相互的调查与讨论,从小就培养学生健康的世界观和积极进取的人生观。
Thinking quality objectives:
通过谈论活动的频率，激发学生对一般现在时与频度副词的运用。
Warm up
Let’s watch a video.
Let’s talk about your weekends!
—What do you usually do on weekends
—I usually watch TV / go to the movies...
—How often do you go to the movies/watch TV/...
—Once a week/...
—Do you...
—Yes, I do. /No, I don’t.
Warm up
Free talk
Review
A: How often do you …
B: …
watch TV exercise shop read help with housework
never
hardly ever
sometimes
often
usually
always
Pair work
Grammar Focus
Grammar focus
Let’s read the sentences and circle adverbs of frequency.
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.
Language points
1. I go to the movies maybe once a month.(教材P11 Grammar Focus)
maybe作副词，意为___________________。
“大概；或许；可能”
【易混辨析】maybe与may be
maybe
may be
maybe是副词，常位于句首作状语，意为”大概;或许;可能”,相当于perhaps。
may是情态动词，may be为“情态动词+动词原形”结构，在句中作谓语，意为“可能是”。
如：或许她是对的。
Maybe she is right.
She may be right.
也许她是个医生。
Maybe she is a doctor.
She may be a doctor.
Grammar
频度副词(frequency adverb)
频度副词表示某一动作或状态出现的______，即在一定时间内某一动作或状态______________，常用来回答___________的提问。
语法定义
频率
重复出现的次数
how often
1、不表示具体次数的频度副词：
never
hardly
sometimes
often
usually
always
seldom
What are the differences
The differences among these words.
我总是六点钟起床。
我经常下班后回家。
我通常和朋友一起过圣诞节。
我有时周末打网球。
我很少去图书馆。
我从不听摇滚乐。
The position of frequency adverbs.
I always wake up at 6:00.
He is often sad.
I sometimes play tennis on the weekend.
My mom is never late for work.
Students should always wear school uniforms.
Sometimes I go skating.
Lucy doesn't usually do her homework.
I go skating sometimes.
实义动词之前
频度副词
be动词、助动词、情态动词之后
有时放句末，为了强调，也可放句首。
我总是六点钟起床。
我有时周末打网球。
露西通常不做家庭作业。
学生应始终穿着校服。
我妈妈上班从不迟到。
他经常伤心。
有时我去滑冰。
有时我去滑冰。
2、表示具体的频率、次数时，通常用once a week（一周一次），twice a month（一月两次），three times a year（一年三次）等。
次数表达法：英语中的“一次”为once；“两次”为 twice；三次或三次以上用“基数词+ times”, 如 three times 三次, many times 许多次。
如：我每周上网两次。
I use the Internet ___________.
李明和他的父母每个月去公园三到四次。
Li Ming and his parents go to the park _________________________.
twice a week
three or four times a month
对频度副词提问
对频率副词及短语提问 使用________.
how often
how often 意为 “__________”，是用于提问表示 ____ 的特殊疑问词组。其答语应为表示 _____ 的副词或副词词组。句子的时态一般是_____________，也可以是一般过去时。
多久一次
频率
频率
一般现在时态
—_________ do you visit your grandparents
—I visit them _____________.
—你多久看望一次你的祖父母？
—我一个月去两次。
How often
twice a month
_______do you go to the gym
____ does your family eat dinner
_________do you go to the beach
Can you tell a difference between “how often” and “when”
When
When
Twice a year
_________ do you see your friends
Every day
How often
How often
On Tuesdays and Fridays.
At 6 p.m. every evening
Can you tell a difference among how often/how long/how far/how soon
用How often，How soon，How far或How long填空。
1. —__________ do you play basketball
—I usually play basketball after school.
2. —__________ will you be back
—In 2 days.
3. —__________ were you away last year
—About one weck.
4. —__________ is it
—An hour by bus.
5.—__________ does Mary go to the cinema
—She goes to it once a week.
How often
How often
How soon
How far
How long
how often 多久一次 用来提问动作发生的频率。
how long 1、时间多长 2、物体多长 用来询问时间的长短；也可询问某物的长度。
how far 多远 用来询问距离，指路程的远近。
how soon 多久以后 常用来提问“in+一段时间”
一般现在时
一般现在时
表示通常性、规律性、习惯性、真理性（即事实）的动作或状态。
“主系结构”
“主谓结构”
肯定句：主语+ be (am/ is/ are) +其他.
否定句：主语+ be (am/ is/ are)n't +其他.
一般疑问句：be (am/ is/ are) +主语+其他
特殊疑问句：疑问词+be (am/ is/ are)+主语+其他？
肯定句：主语+动词原形+其他.
否定句：主语+ don't +动词原形+其他.
一般疑问句：Do +主语+动词原形+其他？
特殊疑问句：疑问词+do +主语+动词原形+其他
主+be
主+动
主语(单三)+动词变单三
主语(单三)+借助doesn’t
主语(单三)+借助does
主语(单三)+借助does
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等结尾的词 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 have-has; be-is
3a
Presentation
Complete the questions with do or does. Then match the questions and answers.
1. How often ______ he play soccer a. Yes. She usually does.
2. ______ you drink milk b. Hardly ever. I don’t like them.
3. How often ______ they stay up late c. He plays at least twice a week.
4. ______ Sue eat a healthy breakfast d. No, they don’t. They’re too busy.
5. How often ______ you eat apples e. Never. They always go to bed early.
6. ______ your parents play sports f. Yes, I do. Every day.
does
Do
do
Does
do
Do
熬夜
做运动
上床睡觉
Presentation
3b
Use the words given to write questions. Then ask and answer them with a partner.
Questions My partner's answers
1. ____________________________________ ___________________________
(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
Three times a week.
What do you usually do on weekends
How often does your best friend exercise
What do you usually do after school
I usually visit my grandparents.
He exercises almost every day.
I usually help with cooking.
Presentation
3c
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.
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
three times a week
every day
twice a month
write to a pen pal
watch English movies
go to the English club
keep an English diary
Sample
Report
Give a report like this:
Lin Ying reads English books twice a week. Hu Tao goes to the English club three times 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.
1.— do you usually exercise
—I usually exercise every morning.
A. How far B. How long C. How often
2.Everyone in our neighborhood loves my grandma because she is kind to others.
A.never B.always C.seldom D.sometimes
3. —How often do you go to the cinema
— . I only watch movies at home.
A. Always B.Usually C.Sometimes D.Never
4.Sally's home is far from Fun Times Park. so she __ walks there.
A.seldom B.usually C.often D.always
5. —How often does your sister exercise
—About _______.
A. three time a day B. three times everyday
C. three time every day D. three times a day
Exercises
一 、单项选择
C
B
D
A
D
二 、汉译英。
1. 至于作业，大多数学生每天都做。
2. 没有学生一周做一次或两次作业。
3. 他几乎从未逛过商店。
4. 你多久锻炼一次？
5. 她通常9点钟上床睡觉。
He hardly ever goes shopping.
How often do you exercise
As for homework, most students do homework every day.
No students do homework once or twice a week.
She usually goes to bed at 9 o’clock.
三 、句型转换。
1. She goes to the movies three times a month.（对画线部分提问）
____ _____ _____ she go to the movies
2. My mother wants me to play the guitar. (同义句转换)
My mother______ _____ me to play the guitar.
3. We eat meat twice a week. (同义句)
We ________ meat two _________ a week.
4. I always exercise after school. (变成完全否定句)
I _________ exercise after school.
5. I practice the piano every day. (对划线部分提问)
______ ______ do you practice the piano
How often does
would like
have
times
never
How often
Homework
1. Do the exercises in students’ book.
2. Review the frequency adverb.
3. Preview (Section B 1a-1e).
谢谢
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