初中英语人教版（2024）八年级下册（2024）Section B教学课件ppt

这是一份初中英语人教版（2024）八年级下册（2024）Section B教学课件ppt，共48页。PPT课件主要包含了Warm-up，Lead-in，Practice，Production，Show Time ，Summary ，Exercise ，Homework 等内容，欢迎下载使用。
Let’s play a game!
It’s yur turn t make sentences like these.
热身游戏：动作指令·T d接龙- 游戏规则
（1）教师先示范“动作+目的”的句式：I stand up t stretch my legs. （站起来是动作，拉伸腿是目的），强调句中的t d结构表目的。（2）让学生依次用“I + 动词原形 + t + 动词原形”的句式接龙，动作需和“休闲/课堂”相关。（这里会再举两个例子：I pen the bk t read English. /I take ut my pen t write dwn ntes.）教师在黑板上快速记录学生接龙的句子。
What did we find in the game?
I stand up t stretch my legs.
I pen the bk t read English.
I take ut my pen t write dwn ntes.
本环节继续呈现热身环节的例句，并将不定式结构高亮显示。将黑板上的学生的句子中的不定式结构依次标记出来，问学生上面的问题。
We made s many sentences with “t + infinitives”(不定式)
Grammar Tips
)为什么叫“不定式”？英语里的infinitive这个名称，源于语法中“形式不受限定”的特点。动词的不定式形式，不会随着主语的人称、数、时态变化而改变形式。比如t read 不管是主语是I、Yu还是They，形式始终不变；而限定动词（如read、reads、read/red/）会根据主语或时态变化。中文翻译“不定式”，就是这节对应这个“形式不受限定”的核心特征。2)不定式的形式：两种：原形动词和带t的不定式，即t +原形动词
Presentatin
Answer the questins accrding t the sentences.
-What d yu d in yur free time? - I play the flute t relax.Q: Why d “I” play the flute?A:T relax.( It's “my” purpse t play the flute.)- Hw did yu spend yur weekend?- I went t the sprts centre t ice skate.Q: Why did “I” g t the sprts centre? A:T ice skate.(It’s “my” purpse t g t the sprts centre.)
- Hw did yu get int painting? - I saw my mther paint. I decided t give it a g.Q: I saw my mther paint. At that time, wh painted?A:“My mther” painted.(my mther作saw的宾语，而paint的动作是my mther发出的，所以paint是在补充说明my mther)
- What did yur instructr say?- She tld me nt t give up s easily.Q: What wuld “I” d after “my instructr” say that t “me”?A:Nt t give up s easily.She tld me nt t give up s easily.(me作tld的宾语，nt t give up是“我”接下来会做的事，是对me的补充说明。)
bject cmpletement
Q: When d we use infinitives with r withut “t”?什么时候用带“t”的不定式，什么时候用不带“t”的不定式呢？（1）带t的不定式（t +动词原形）的常见用法①She wants t buy a new bike.作宾语，放在及物动词后，如want, hpe, decide, plan, learn, wish 等②The teacher asks us t finish hmewrk n time.作宾语补足语，放在 ask, tell, want, allw, teach 等动词 + 宾语后
Q: When d we use infinitives with r withut “t”?什么时候用带“t”的不定式，什么时候用不带“t”的不定式呢？（1）带t的不定式（t +动词原形）的常见用法③He gets up early t catch the bus.作状语（表目的、结果等），表目的时最常用④It’s imprtant t keep healthy.作主语，常用 it 作形式主语，避免句子头重脚轻
Q: When d we use infinitives with r withut “t”?什么时候用带“t”的不定式，什么时候用不带“t”的不定式呢？2）不带 t 的不定式（动词原形）的常见用法① Yu shuld drink mre water.放在情态动词后（can, may, must, shuld, will 等）②My mm makes me clean my rm every week.放在使役动词后（let, make, have，表“让/使”）注意：这类结构变被动语态时要加 t，如 I am made t clean my rm.
Q: When d we use infinitives with r withut “t”?什么时候用带“t”的不定式，什么时候用不带“t”的不定式呢？2）不带 t 的不定式（动词原形）的常见用法③I saw him crss the street just nw.放在感官动词后（see, watch, hear, ntice, feel 等，表“看到/听到/感觉到动作的全过程或经常性动作”）注意：表“动作正在进行”时，用 v.-ing 形式，如 I saw him crssing the street.④Yu had better g t bed early.放在固定搭配中，如 had better d sth.（最好做某事）wuld rather d sth.（宁愿做某事）
Let’s knw abut sme utdr activities.
① cycling 骑自行车• ride a bike t the park• cycle alng the riverbank• enjy the fresh air• stp t take phts• plan a cycling trip• learn t ride a bike well
②skatebarding 玩滑板• d skatebarding tricks• practice balancing skills• skate in the street square• fall dwn but never give up• jin a skatebarding club• try new skatebarding mves
③hiking 徒步远足• g hiking in the muntains• walk thrugh the frest• carry a small backpack• climb up t the tp• enjy the beautiful view• take a rest n the way
④badmintn 打羽毛球• play badmintn with friends• hit the shuttlecck hard• win a badmintn game• practice serving the ball• play in the schl playgrund• bring a badmintn racket
⑤picnicking 野餐• have a picnic in the cuntryside• prepare sme snacks and drinks• lay ut a picnic blanket• share fd with family• fly kites after the picnic• clean up the rubbish
⑥frisbee 玩飞盘• play frisbee with a grup• catch and thrw the frisbee• run arund t get the frisbee• learn frisbee rules• have fun with frisbee games• jin a frisbee match
Let’s read a sample.
A Happy Outdr Activity — CyclingWhat d I usually d utdrs? I usually g cycling alng the river with my dad, and it’s my favrite utdr activity.My dad ften asks me t ride slwly and carefully. He always tells me t keep away frm the busy rad t stay safe. We usually chse the quiet path by the river, and we stp smetimes t watch the fish swimming in the water. I als like t take my camera with me t take sme beautiful phts during the trip.
Smetimes, my little brther wants t jin us t. Dad makes him sit n the back seat f my bike because he is t yung t ride alne. We all feel happy after cycling, and it helps me relax after a busy week at schl.Cycling is such a nice utdr activity. I hpe t ride t the cuntryside with my family next time .
Writing Time
用所给动词的适当形式填空。
1. My parents hpe me ____________ (becme) a useful persn in the future.2. The teacher tld us ____________ (nt be) late fr class again.3. It's necessary fr us ___________ (learn) a freign language well.4. He decided ____________ (jin) the English club t imprve his ral English.5. My mther ften asks me _____________ (help) her with the husewrk n weekends.
6. Let him ______ (d) this wrk by himself. He is ld enugh.7. We saw the girl ______ (play) the pian when we passed her rm.8. Yu'd better _________ (nt eat) t much junk fd. It's bad fr yur health.9. She wants _________ (buy) a new dress fr the cming party.10. The little by was made __________ (clean) his rm by his mther.
Must-d:  「户外不定式小日记」任务要求1. 围绕 What d yu usually d utdrs? 这个核心问题，写一篇50-80词的英文小日记。2. 硬性语法要求：必须包含 2处不定式作宾语补足语 + 1处不定式作目的状语，并用不同颜色的荧光笔标注出来。3. 配图建议：在日记旁画1-2幅简笔画（如骑车、打球的场景），或贴一张自己户外活动的照片。
Chse-t-d:（3选1）选项1：「不定式情景漫画条」1. 选择一个自己喜欢的户外活动（如cycling, hiking, picnicking），画3格漫画。2. 每格漫画配1句英文台词，必须包含1种不定式功能（宾补/状语/宾语任选）。
3. 示例：◦ 格1（图：爸爸教骑车）：Dad teaches me t keep my balance（宾补）.◦ 格2（图：停在河边）：We stp t watch the ducks（目的状语）.◦ 格3（图：开心回家）：I hpe t ride again tmrrw（宾语）.
Chse-t-d:（3选1）选项2：「户外不定式配音小剧场」1. 和1-2名同学组队，选取本单元的户外活动主题，编写一段30秒左右的英文小对话。2. 对话中至少包含 2处不定式结构，并为对话配音（用手机录音即可）。3. 额外要求：在录音稿上标注出每个不定式的语法功能。