英语八年级上册Unit 2 How often do you exercise?Section A授课课件ppt

这是一份英语八年级上册Unit 2 How often do you exercise?Section A授课课件ppt，文件包含人教版初中英语8上Unit2HowoftendoyouexerciseSectionAGrammarFocus－3c课件pptx、人教版初中英语8上Unit2HowoftendoyouexerciseSectionAGrammarFocus－3c课件docx、WordsandExpressonsU2-2-mp3等3份课件配套教学资源，其中PPT共30页， 欢迎下载使用。

Learning aims
1.学习本课新词汇和短语：maybe，least，at least，nce a mnth，stay up，twice a week，eat a healthy breakfast，g t bed，play sprts，after schl掌握句型：1.What d yu usually d n weekends？I always yu g shpping？N，I never g ften d yu read English bks？I read English bks abut twice a week. 2.正确使用hw ften引导的特殊疑问句询问从事活动的频率并能正确使用频度副词描述从事活动的频率。3.能够熟练运用一般现在时态，能够正确使用一般现在时的助动词 d, des。4.通过阅读Grammar Fcus表格，自主学习和小组合作探究,总结归纳频率副词的用法及Hw ften...引导的一般现在时特殊疑问句的用法。
maybeleastat least
adv.大概；或许；可能adv. 最小；最少；adj.& prn 最小的；最少的至少；不少于；起码
Rle-play the cnversatin in 2d.
Hi, Claire, …
1. D hmewrk
2. exercise
3. G t the mvies
4. Play ftball
5. Watch TV
6. reading
—What d\des they\he\she usually d n weekends? —They\He\She usually des sme reading...
_____________d yu g t the mvies?
I g t the mvies …
nce a week.
d yu g skatebarding?
I g skatebarding …
twice a week.
d yu exercise?
I exercise…
three times a week.
Let’s talk abut yur weekends !
—Hw ften d\des they\he\ —Every day\...
surfs the Internet
listen t music
play cmputer games
Read the sentences and translate them.
Grammar Fcus
1. 你通常在周未做什么？____ ____ yu______ d n weekends?2. 我总是去运动。 I _______ _______.3. 他们在周未做什么事情？_____ _____ they_____ n weekends？4. 他们经常帮助做家务。They _____ _____ with husewrk. 5. 她在周未做什么？What ______ she _____ n weekends?6. 她有时候去购物。She _________ _____ _________.7. 你多久去看电影一次？____ _____ d yu g t the ______? 8. 我可能一个月去看一次。I g t mvies ____ ____ a _______.9. 他多久看一次电视?____ ______ des he watch TV? 10. 他几乎不看电视。He ______ _____ watches TV. 11. 你去购物吗？ ___ ____ g shpping?12. 不，我从不去购物。N, I _____ ____ shpping.
always exercise
ften help
smetimes ges shpping
maybe nce mnth
hardly ever
What did yu find ut?
探究一：频度副词与一般现在时的用法
频率副词always(总是), usually(通常), ften(经常), smetimes(有时候), 还有hardly ever(几乎不), never(从不),谈论习惯性、经常性的动作或状态，常常与一般现在时连用。
例如：他总是上课迟到。He always arrives late fr class.她通常晚上做家庭作业。She usually des her hmewrk at night.他们几乎不看电视。 They hardly ever watch TV.
1.频度副词的概念及构成
在一般现在时态的句子中，常出现always, usually，ften，smetimes，never等表示频率的副词。这些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这些词在英语中被称为频度副词。一般来说可按频率大小排列为：always（总是100%）>usually（通常≥ 80%）>ften（常常；经常≥ 60%）>smetimes（有时≥ 20%）>hardly ever（几乎从不＜ 5%）>never（从不0%）等。
频度副词放在系动词be、助动词或情态动词之后，行为动词之前。eg：He is always asking fr mney.他总是要钱。 We ften have lunch at schl.我们经常在学校吃午饭。 They hardly ever make dinner. I can never frget the day!
有些频度副词可放在句首或句尾，用来表示强调。eg：Smetimes I walk hme，and smetimes I g hme by bus. 我有时步行回家，有时乘公共汽车回家。
Smetimes, Lily is late fr class.
never 位于句首，句子要倒装。eg：Never have I learnt this wrd. 我从未学过这个单词。
Never 　　　　 （我能见到） this girl again.
探究二：助动词d 和des与一般现在时的用法
当主语为第三人称单数时，则助动词用des;
当主语不是第三人称单数时，则助动词用d。
他们通常在周未锻炼吗？ ___ they ften _______ n weekends?
D exercise
她每天上网吗？ ____ she ____ the Internet every day?
Des use
(否定句用到助动词d或des)
当主语是第三人称单数时：
She des nt d his hmewrk after dinner.(此处des助动词，构成否定句)
He des nt play basketball in the afternn.(此处play为动词原形)
当主语不是第三人称单数时，则助动词用d;
主语+助动词d + nt+动词原形+其他.
I d nt g t the mvies n Sunday evening.
They d nt d sme reading in the mrning.
(肯定句中不用助动词d或des)
She always des his hmewrk after dinner.(此处des为实义动词，“做”)
He ften plays basketball in the afternn.(此处plays为动词三单形式，加s)
一般现在时特殊疑问句的构成
特殊疑问词+（一般疑问句）？
des+主语(分为第三人称单数和非第三人称单数)+动词原形+其他
What time des she get t schl?
What des he ften d in the evening?
当主语不是第三人称单数时：
Hw d they get t schl?
What d yu d n weekends?
探究三：Hw ften 问句与一般现在时的用法和答语
Hw ften + 助动词 d (des ) + 主语 + d sth.? 疑问词 hw ften 是问频率 (多久一次),（这里助动词 d (des) 是起帮助构成疑问的作用）多与一般现在时连用,有时也和一般过去时连用。回答一般是用表示频率的副词。
(1)频度副词 alway， usually，ften，smetimes，hardly ever，never
(2)every+名词单数 everymrning/afternn/evening/day/Sunday/weekend/ week/mnth/term/year/…
(3)次数+一段时间 nce a week/mnth/year twice a week /mnth/year three times a week/mnth/year fur times a week/mnth/year
(4)nce every fur years 每四年一次　 seven times every tw minutes 每两分钟七次
eg:Li Ming and his parents g t the park three r fur times a mnth.
探究四：hw ften与hw lng/far/sn的用法区别
hw ften 多久一次，用来询问在某一段时间内进行某个动作的次数。hw many times 多少次，它不问动作发生的频率，只询问次数，即“多少次”。其答语为nce，twice，three times等。eg：—Hw many times have yu been t Beijing？ 你去过北京几次？ —Only twice.仅两次。 —Hw ften d yu g t Beijing？ 你多久去一次北京？ —Twice a mnth.每个月两次。
【辨析】hw ften与hw many times
Cmplete the questins with d r des. Then match the questins and answers.
1. Hw ften _____ he play sccer？2. ______ yu drink milk? 3. Hw ften ______ they stay up late? 4. ______ Sue eat a healthy breakfast? 5. Hw ften ______ yu eat apples？6. ______ yur parents play sprts?
a. Yes. She usually des.b. Hardly ever. I dn’t like them.c. He plays at least twice a week.d. N, they dn’t. They’re t busy.e. Never. They always g t bed early.f. Yes, I d. Every day.
思路指导： 首先，读句子理解大意。然后，分析句子结构，看句子的主语是否第三人称单数形式。其次，通读所有答语句子理解大意。然后，判断问句是一般疑问句还是特殊问句，来先确定答案的范围。最后，根据问答句在主语及句意上的联系来确定答案。
Use the wrds given t write questins. Then ask and answer them with a partner.
Questins My partner's answers1. ____________________________________? ___________________________ (hw ften / help with husewrk)2. ___________________________________? ___________________________ (what / usually / d / weekends)3. ___________________________________? ___________________________ (hw ften / best friend / exercise)4. ___________________________________? ___________________________ (what / usually / d / after schl)
Hw ften d yu help with husewrk
Three times a week.
What d yu usually d n weekends
Hw ften des yur best friend exercise
What d yu usually d after schl
I usually visit my grandparents.
He exercises almst every day.
I usually help with cking.
What can yu d t imprve yur English?
read English bks
sing English sngs
talk with freigners
jin the summer camp
watch English mvies
read English newspapers
d sme English exercise
read English magazines
What can yu d t imprve yur English? Add mre things t the chart. Then ask yur classmates the questins and find the best English student.
twice a week
twice a mnth
watch English prgrams
write English diaries
Lin Ying reads English twice a week. Hu Ta ges t English Club twice a week. Su Lei watches English mvies nce a mnth. Ma Li writes t a pen friend nce a mnth. Hu Ta keeps an English diary. I think Hu Ta is the best English student.
Wh’s the best English student?
read English bkssing English sngswatch English prgramslisten t English tapesjin the English crner　(参加英语角)chat with freigners（与外国人聊天）write English diariesread English striesplay English games
A: Hw ften d yu …?B: Once a week／Every day/Twice a mnth /Hardly ever/Never/Smetimes/…
I think …is the best English student.…’s English is pretty very active in class. After class, …His/her gd habits help him/her get gd grades. As fr me, I read English …
你可以通过以下方法提高英语
maybe & may be maybe adv. ，意为“可能; 也许”。可以在句中的任何位置，通常位于句首，相当于perhaps。maybe是副词，在句子做状语。 may be mdal v.，情态动词may 与动词原形be 一起构成句子的谓语动词意为“可能是”,只能用在句中。它们有时也可互换。 Maybe yu are right. =Yu may be right. Maybe he likes running. = He may like running. Maybe I’m nt very healthy =I may be nt very healthy.注：副词maybe可以单独做答语，而may be 不能。---Des he like playing basketball? ---Maybe. (Maybe nt)练习：1. 或许他们将去海滩度假。 ______ they are ging t the beach fr vacatin. 2. 许它们在你的书包里。 They _____ ___ in yur schlbag.
1. She ges t the mvies three times a mnth.（对划线部分提问） ____ _____ _____ she g t the mvies?2. I always exercise after schl. (变成完全否定句) I _____ exercise after schl.3. I practice the pian every day. (对划线部分提问) _____ ____ d yu practice the pian?
Hw ften des
用所给词的适当形式填空。
1. Hw ften des she ( have) pian lessns?2. What kind f dance are yu(learn)?3. D yu want (cme) and jin me?4. What (d) she d n weekends?5. What (d) she d last weekend?
1. Remember the wrds and phrases yu have learnt in this lessn.2．D the exercises n Page 9 in students' bk.