2021学年Unit 7 Poems评课课件ppt

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1. Language knwledge1) Understand the structure and usage f imperative sentences;2) Understand the structure and usage f exclamatin sentences;2. Language skills1) The psitive and negative frms f imperative sentences and their plite usage.2) Tw kinds f exclamatin sentence structure cmpsed f what and hw
Watch the vide and talk abut it.
Frm the vide, we can knw what we are ging t learn tday?祈使句 Imperative Sentence祈使句是英语中的一个句式，也是用于表达命令、请求、劝告、警告、禁止等的句子。祈使句最常用于表达命令，因此在学校文法中也常称为命令句。在祈使句中，通常省略第二人称主语，以动词原形开头。句末一般用句号；表示较强语气时，则用感叹号。
Imperatives.
Presentatin
We use imperatives t give rders r advice. There are psitive and negative imperatives.Open the dr, Daisy.Dn’t pen the dr, Daisy.Let’s make a millin smiles!
Things t rememberWe can use please in imperatives. It is mre plite.Please turn ff yur phne.Turn ff yur phne, please.
We need t add be befre adjectives when we use them as imperatives.Be quiet, girls.Dn’t be late again.
Lk at the picture. What will the teacher say? Make sentences with the wrds frm the bx n page 95. Sme f them must begin with Dn’t.
bring　clse　eat　sleep　speak luder　turn t
Dn’t eat in class, Bill.
Clse the dr, Rse.
Please say ludly, Jane.
Dn’t sleepp in class, James.
Please lk at page 74, Steven.
Dn’t bring yur pet t schl, Mary.
The structure f imperatives.
肯定的祈使句结构1　Be型(即：Be +表语(名词或形容词)+其它成分)。含有第二人称主语的祈使句，省略主语。Be a gd child! 要做一个好孩子!Be quiet fr a mment.请安静一会。Be careful！小心！
肯定的祈使句结构2　D型(即：动词原形(+宾语)+其它成分)。有时，为了加强语气，可以在动词之前加d。Please have a seat here.请这边坐。有的祈使句在意思明确的情况下，动词可省略。This way, please. = G this way, please. 请这边走。Make yur wn rules.给自己制定规划。
肯定的祈使句结构3　Let型(即：Let + 宾语 + 动词原形 + 其它成分)。Let me help yu. 让我来帮你。Let's run t the plice statin n furth street.我们跑去第四大街上的警察局吧。Let's包括对方，Let us不包括对方。反意疑问句时最明显。Let's g，shall we？咱们去吧，怎么样？Let us g，will yu？让我们去吧，行吗？（征求对方的意见）
否定句的祈使句的结构1　Dn‘t+动词原形：Dn‘t eat in the classrm.不要在教室里吃东西。2　Let‘s+ nt+动词原形：Let‘s nt say anything abut it.这件事咱们什么也不要说。3　用否定副词never构成，以加强否定含义：Never judge a persn by lks.绝不能以貌取人。
祈使句巧记口诀祈使句无主语 ，主语yu常省去；动词原形当谓语，Dn't句首变否定；朗读应当用降调，句末常标感叹号。
Remember this tip!
Lk and say.
G and wash yur hands.
Be quiet, please.
Watch yur steps.
Keep ff the grass.
N littering.
Let’s play a game!
The first student say : “I am hlding my bk. Hld yur bk t, please.” Then, the next student reply: “I hld my bk.” And ask the third student “Take yur pencil ut the bx, please.” In this mdel, every student play this game in turn.
Exclamatins.
Smetimes we use sentences with emphasis and strng feelings. These sentences are called exclamatins.
What + (a/an) + adjective + nun + subject + verb + !Hw + adjective/adverb + subject + verb + !
What an interesting pem it is!What beautiful flwers they are!What bad weather it is!
Hw lucky we are!Hw quickly the time passed!Hw bright the stars are!
We can use a wrd r phrase as an exclamatin, such as Oh n! r Lvely! We can als use a wrd r phrase with what r hw t shw strng feelings.
What an interesting pem!What beautiful flwers!What bad weather!
Hw lucky!Hw fast!Hw bright!
Rewrite the sentences belw using exclamatins with what r hw.
1　Yu are wearing an ld shirt.________________________________________________________2　The bys are very excited.________________________________________________________3　They are friendly peple.________________________________________________________4　She studies very hard.________________________________________________________
What an ld shirt yu are wearing!Hw excited the bys are!What friendly peple they are!Hw hard she studies!
Lisa and Bb are talking abut their friends. Cmplete their cnversatin with the exclamatins frm the bx.
Oh n!　Hw wnderful!　What a lvely baby!
Lisa: Tm wn the first prize in the speech cmpetitin.Bb: _______________ He must be very happy.Lisa: Yes. But Jeff hurt his leg when he played basketball.Bb: _______ Hw is he feeling nw?Lisa: He’s feeling better. By the way, ur Maths teacher had a baby last mnth. Lk, here’s a picture.Bb: Ww! __________________
Hw wnderful!
What a lvely baby!
The structure f exclamatins.
由what引导的感叹句1. ① What+a/an+（形容词）+单数可数名词+主语+谓语！② What+名词词组+主语+谓语！What a fine day it is!2. What+(形容词）+可数名词复数或不可数名词+主语+谓语!What kind wmen they are!What nice music it is!
由Hw引导的感叹句（hw用来修饰形容词、副词或动词。）1. Hw+形容词（副词）+主语+谓语！Hw hard the wrkers are wrking!Hw clever the girl is!Hw quickly the by is writing!2. Hw+主语+谓语！Hw time flies! 时光飞逝!
注意1. 当hw修饰动词时，动词不跟着感叹词提到主语之前。Hw fast the runner runs!赛跑者跑得多快啊！2. hw与what引导的感叹句中的第一种格式(单数名词)一般情况下可以相互转换，转换后意义不变。What an interesting stry it is! = Hw interesting the stry is!What a beautiful building it is! = Hw beautiful the building is!
Chse the crrect answers.
(　) 1 ____ exercise every day. It’s gd fr yur health.A. TalkingB. T takeC. TakeD. Takes(　) 2 ____ here n time next time, r yu’ll be punished.A. BeB. BeingC. T beD. Been(　) 3 The wrk is hard fr yu. ____ me help yu.A. Let’sB. LetC. LettingD. Let t
(　) 4 Sara! ____ talk ludly. The baby is sleeping right nw.A. DB. DesC. Dn’tD. Desn’t(　) 5 – Mm, can I play cmputer games this evening? – ____ yur hmewrk first, and then we’ll talk abut it.A. FinishingB. FinishC. T finishD. Finished
Key pints: 了解祈使句的结构和用法；了解感叹句的结构和用法；礼貌地表达建议和要求，学会合理。