八年级下册Grammar背景图ppt课件

这是一份八年级下册Grammar背景图ppt课件，共35页。PPT课件主要包含了看图完成句子，how to go，Objectives，how I can，Practice， Summary，Grammar2，must，mustn’t，have to等内容，欢迎下载使用。
handhand inand s nreviewreturnn timerenew
vi. 交；递，给上交，递交……等等n. 评论vt. 归还准时vt. 续借；更新；重新开始
Andy desn't knw _____________.
what t wear
Millie can’t decide _________________.
which bk t buy
They dn’t knw _________ t the statin.
I dn’t knw hw _______________ frm a library.
t brrw bks
T learn t use questin wrds + t-infinitivesT learn t use must and have t
Gulliver didn’t knw what t say.Gulliver didn’t knw hw t get away.
Use a questin wrd with a t-infinitive after a verb.
Using questin wrds + t-infinitives
Millie has decided .(读什么)Daniel didn’t say .(与谁谈话)Simn frgt . (何时与朋友见面)Sandy is wndering .(去哪里寻求帮助)Amy desn’t knw .(如何写报告)
what t read
wh t talk t
when t meet friends
where t ask fr help
hw t write the reprt
She will explain why t recmmend this bk.
She will explain why she recmmends this bk.
Using a verb and an bject befre a questin wrd + t-infinitives
Mr Wu advised us which t chse as after-schl activities.The students asked their teacher when t hand in their wrk.Millie shwed us what t d next.Daniel taught himself hw t use a cmputer t draw.
有些动词，如advise, ask, shw, teach, tell等，其后可以接双宾语。
Using a nun after a questin wrd + t-infinitives
They are discussing which clur t paint the walls.Yu can ask yur parents hw much mney t take with yu.
Suzy was nt sure wh t ask fr help.Are yu clear when t meet at the gate tmrrw?
Using an adjective befre a questin wrd + t-infinitives
The yung wman desn’t knw what t d. 那位年轻女子不知道怎么办。I dn’t knw what t say. 我不知道说什么。 We must knw hw t perate the machine. 我们必须弄懂如何操作这机器。We want t learn hw t write plays. 我们想要学习如何写剧本。
“疑问词 + 动词不定式”结构在句中还可以作主语和表语。Hw t use the machine is a questin. （作主语）The questin is when t g there. （作表语）
“疑问词 + 动词不定式”作宾语时，相当于一个由该疑问词引导的宾语从句。Excuse me. Can yu tell me hw t get t the bkshp? = Excuse me. Can yu tell me __ _ _ get t the bkshp?
He frgt when t meet his friends.He frgt when _____ ______ meet his friends.
he culd
Finish the exercises n P55.
他想知道明天在哪会见他的朋友。昨天她问我们何时上交作业。我们正在商量去参观哪个地方。我不确定明天怎么去上学。她不能决定买哪条裙子。
He wnders/wants t knw where t meet his friends tmrrw.
She asked us when t hand in hmewrk yesterday.
We are discussing which place t visit.
I’m nt sure hw t g t schl tmrrw.
She can’t decide which skirt t buy.
Unit 4 A gd read
Gulliver was tied t the grund. S he must run away.
Study is very imprtant. S we must study hard.
We use must when the speaker feels that smething is necessary.
He mustn’t lie n the grund.
We mustn’t talk in class.
Get the students t make up new sentences using “must”.
Gulliver was tied t the grund. He has t lie n the grund.
Grandma is ill. She has t see the dctr.
We use have t when the situatin makes smething necessary.
She desn’t have t wrry abut herself.
He desn’t have t shut at the tiny men.
Get the students t make up new sentences using “have t”.
Cmplete the fllwing sentences with ‘must, mustn’t, have t, dn’t have t’.Yu keep quiet in the library.Yu keep the bks clean and tidy.Yu draw r write in the bks.Yu eat r drink in the library.Yu return the bks n time, if yu want t keep them lnger, yu renew them.Yu bring yur student card every time yu g t the library, but remember t bring yur library card.
Library rules
dn’t have t
must与have t是情态动词，接动词原形。。must 表示主语“有义务” “必须”，强调说话人的主观看法，主要用于肯定句和疑问句；must be+n/adjmust +V原 (现在肯定推测, “一定”。)现否 can’t+be/V eg. He is sleeping. He ____ ____sleepy.There is smene kncking n the dr. It ____ ____ Jim.
Must I finish the hmewrk tday?Yes, yu _______.N, yu _________/____________/______________. must 的疑问句，肯定回答must, 否定回答needn’t/dn’t have t/dn’t need t.
dn’t have t
dn’t need t
mustn’t “禁止” eg. Yu _______play ftball/smke in the classrm.have t 强调的是客观需要，意思是“不得不”。have t 有人称和数的变化。否:dn’t have t He ___ ___ wear light clthes because it’s s ht. He was ill. I ________ stay at hme t lk after him.
mustn’t 用于对may 的否定回答。
I must wrk hard at my lessns.      我必须努力学习功课。(主观意愿）I have t lk after mther at hme.  Fr she is ill. 我得在家照看妈妈，因为她病了。(客观需要）It is getting dark. He has t g hme nw.天快黑了。他现在得回家了。(客观需要）
1. I’m ging n a field trip but I haven’t decided ______. (2007河南) 　A. what t d B. t d what 　C. where t g D. t g where2. Excuse me. Wuld yu please tell me ______ buy a digital camera? (2007安徽) 　A. what t B. where t 　C. what I can D. where can I
3. — This physics prblem is t difficult. Can yu shw me ______, Wang Lin? 　— Sure. (2008陕西) 　A. what t wrk it ut 　B. what t wrk ut it 　C. hw t wrk it ut 　D. hw t wrk ut it
4. — We need a new leader fr ur Helping Hands Club, but I dn’t knw ______. — Why nt Mary? She is always willing t help thers. (2011江苏南通) A. what t chse B. hw t chse C. when t chse D. wh t chse
5. The math prblem is s hard. I really dn’t knw ______. (2012甘肃鸡西) A. hw t d it B. hw t d C. what t d it6. — Excuse me. Culd yu tell me ______ get t the nearest pst ffice? — Srry, I am new here. (2013山东威海) A. hw can I B. hw I culd C. hw t D. what I can
7. — Excuse me. Culd yu please tell me ______ my car? — Sure. Park it right here. I’ll help yu. (2013山东青岛) A. hw t stp B. where t park C. where t stp D. when t park8. — ______ I swim here? — I’m srry. Children ______ swim alne here. (2012广东) A. Must; can’t B. May; must C. Can; mustn’t D. Can’t; can
9. — Dad, must we wait until the light becmes green? — Yes, I'm afraid we ______. That's the traffic rule. (2013河南) A. can B. may C. have t D. need10. Students in ur schl ______ knw shuting is nt allwed in the library. (2013山东莱芜) A. can B. may C. must D. need
When I g int the clthes shp, I always can’t decide ______ ne t buy.2. My grandfather desn’t knw ______ t use a cmputer.3. --- Will yu please shw me _____ t drive a car? --- Yes, f curse. Nw let me tell yu _____ t d first.4. I will tell Lucy ______ and _______ t meet.
II. 选用hw, which, what, when, where填空。
IV. 翻译下列句子。
1. Have yu decided _____________ ____________ (怎样度假)?2. I dn’t knw ______________________ (在会上说什么).3. Can yu tell me ___________________ (在哪里能买到这本书)?
what t say at the meeting
where t buy this bk
4. Drivers ___________________ (必须系 安全带) while their cars are running n the rad.5. — _____ (必须) I finish my hmewrk nw? — N, ________________ (你没必要). Yur wrk is ver tday.
yu dn't have t
must wear seat belts