初中英语人教版（2024）八年级下册（2024）Section A图片ppt课件

这是一份初中英语人教版（2024）八年级下册（2024）Section A图片ppt课件，共23页。PPT课件主要包含了动词不定式，肯定式，否定式，不定式句法功能，作主语，practice，for，作宾语，to go，to pass等内容，欢迎下载使用。
I play the flute t relax.
I decided t give it a g.
She tld me nt t give up s easily.
t+ d (动词原形)
注：1、动词不定式没有人称和数的变化。
nt t+ d (动词原形)
2、它可作除谓语外的任何成分，如：主语，宾语，宾补，表语，定语，状语等。
动词不定式是非谓语动词的一种形式，基本形式是“t+动词原形”。其中t是动词不定式符号，在有些情况下可以省略。
T give is better than t take. T see is t believe. T learn English well is imprtant fr us .
①动词不定式作主语，谓语动词用 形式
②动词不定式作主语时，常用it 作形式主语，构成"It is +adj. +fr/f sb. +t d sth. 做某事对某人来说是...", 此时不定式是真正的主语。
It is imprtant fr us t learn English well .
It is +adj. +fr/f sb. +t d sth.
eg：It's flish f her t d such a thing . It's kind f yu t help me .
fr：描述不定式的行为特征 (如：imprtant/easy/ interesting/difficult)
f：描述人的品质特征(如：kind/nice/friendly/flish)
e.g. It is difficult fr her t learn a new language. It is easy fr Emma t learn t swim.
用f 或 fr 填空1. It's clever yu t say 's impssible him t finish 's wrng yu t tell a 's careless her t make s many mistakes in the exam5.It's necessary yu t learn a freign language.
不定式作宾语位于及物动词之后
I started t d calligraphy .
Chen Jie likes t play the flute.
一些常见动词后接动词不定式作宾语：
decide, learn, want/wuld like, hpe/ expect/ wishmanage,refuse, like/lve/prefer, pretendffer, prmise, chse, planagree, ask, help
口诀：决定学会想希望设法拒绝爱假装主动答应选计划同意请求帮一帮
eg：我认为再和他谈一次是很有必要的。I think it necessary t talk t him again.eg：我发现很难入睡。I fund it difficult t fall asleep.
think/find it+adj.+t d觉得发现做...是怎样的。这里的it是形式宾语，真正的宾语是动词不定式。
practice1.He plans (g) t Beijing fr a by hpes (pass) the English parents decide (give) me mre mney.4. I fund it hard (give) up (smke)'t frget (turn)ff the light.
宾语补足语是紧跟在宾语之后，对宾语的身份、状态或动作进行补充说明的成分，使宾语的意义更加完整。可以是带t的不定式，也可以是不带t的不定式，这主要取决于谓语动词。
Can yu help me (t) pen the dr?
I saw her get n the bus.
①接带t的动词不定式作宾补的动词(短语)有：tell, ask, rder, allw, advise, encurage,want, wish, expect, invite等。
②接省略t的动词不定式作宾补的动词有感官动词 (feel, hear, listen t, see, ntice, watch, lk at等)和使役动词(make, let, have等)。
一感二听三让四看半帮助
③动词help后可以接带t的动词不定式作宾补，也可以接不带t的动词不定式作宾补。
Practice1. Let him (finish) the wrk at ften saw Lily (draw) in her tell her (cme) here n time.4.I dn't want yu (help) me.5.I wish yu (have) a gd time.6. My best friend teaches me (swim).
His jb is t lk after the patients.My dream is t be a singer.His wrk is t clean the rm.
Please give me smething t drink.I have tw bks t read.
① 不定式作定语，应放在被修饰词之后。
② smething, anything, nthing, everything 等复合不定代词常用不定式作后置定语。
D yu have anything t buy?
I have nthing t wrry abut.
1. 我有很多要做的作业。2. He is always the first persn t get t schl.3. 该睡觉了。4. She is lking fr smething t eat.5. This is the nly way t deal with the prblem.6. I have n curage t try again after failure.
I have a lt f hmewrk t d.
他总是第一个到达学校的人。
It's time t g t bed.
这是唯一处理这个问题的方法。
失败之后我没有再试一次的勇气。
I came here t see yu.I am very glad t hear the news.This bx is t heavy t mve.
Jim wrks hard t pass the exam.T catch the train, he gt up early.I'm srry t hear that yu lst the game.我很开心昨天见到了她。他太小了而不能站立。
He is t yung t stand.
Jim 努力学习是为了通过考试。
为了赶上火车，他早早地起床了。
听说你们输了比赛，我很抱歉。
I was happy t say her yesterday.
不定式作结果状语常有以下句型：
1.t+adj./adv.+t d sth.
eg：他太小了以至于还不能上学。
He is t yung t g t schl.
2.(nt)+adj./adv.+enugh+t dsth.
eg：这个问题简单到足以做出来。
This prblem is easy enugh t wrk ut .
He is nt ld enugh t g t schl.
他太小了以至于还不能上学。
eg：问题是什么时候出发。eg：我不知道如何使用电脑。eg：他会告诉你在哪里可以得到这本书。 eg：做什么是一个重要的问题。
The questin is when t start.
I dn't knw hw t use the cmputer.
He can tell yu where t get the bk.
What t d is an imprtant prblem.
不定式可以和疑问代词wh, what, which 及疑问副词 when, where, hw 连用构成不定式短语，在句中充当主语、宾语、表语等成分。
Read the sentences. Decide if each infinitive in bld functins as an bject cmplement r adverbial.
4b Cmplete the cnversatins with the crrect frms f the verbs in brackets.1. A: Thanks fr yur advice! It made me (decide) t try skiing. B: Yu're welcme. Try (frget) yur fears and have fun!2. A: My cusin ften asks me (fly) kites with her when it's windy. B: That sunds fun! I'd lve t watch yu (fly) kites smetime.3. A: I lve t watch kung fu mvies (relax). B: Really? When I want (relax), I watch animal vides.4. A: My parents tld me (nt push) myself t hard. B: Yes, it's imprtant (nt frget) t relax nce in a while.
4c Cmplete the passage with the infinitive frms f the verbs in the bx. What d yu usually d utdrs?My twin brther and I lk alike, but we are s different. I lve sprt, and I ften meet my friends ftball and tennis. My brther jined us t play ftball nce r twice, but he decided after that. He desn't like sprt very much! Instead, he likes at hme and mvies , t music, and with friends nline. Our parents were wrried abut him staying hme t much. They als wanted us mre time tgether as a family. S, nw they let us ur favurite activities n Saturdays, but n Sundays, we g n a family uting tgether!
chat (nt) cme d listen play spend stay watch