还剩20页未读，
继续阅读
所属成套资源：高中英语人教版选择性必修三同步精品课件
成套系列资料，整套一键下载
高中英语人教版 (2019)选择性必修 第三册Unit 2 Healthy Lifestyle教学ppt课件
展开
这是一份高中英语人教版 (2019)选择性必修 第三册Unit 2 Healthy Lifestyle教学ppt课件，共28页。PPT课件主要包含了目的状语，温馨提示，n 香烟，n 专家，n 顾问，n 毒品药品，v 跳过，decide on，begin with，to acquire等内容，欢迎下载使用。
T learn infinitives used as subjectsT use infinitives t cmplete sme exercises
Lk at the fllwing sentences and pay attentin t the italicised infinitives. Find mre infinitives in the reading passage. In pairs, discuss their meanings and functins.1 T change bad habits is never easy.2 It tk the surgen (n.外科医生) three hurs t finish my mther’s lung surgery (n. 外科手术).
3 T jin the Peple’s Liberatin (n. 解放) Army , it is required fr men t shave ff (剃掉，刮掉)their beards.4 It was nt plite t disturb(v. 打扰)yur neighburs with lud music last night.
【Thinking】 What’s the functin f the phrase “t jin the Peple’s Liberatin Amy” in sentence 3?
不定式在句子中可以充当如下成分：
本节课我们主要讲解不定式在句子中作主语的情况。
不定式可以作除“谓语”外的句子成分。
动词不定式作主语常见的三种形式1. 不定式作主语通常位于句首，表示具体的某次动作，谓语动词用单数。 T see is t believe. 百闻不如一见。 T get up early is necessary. 早起是必要的。T learn a skill is very imprtant fr everyne in sciety. 学习一项技能对社会上的每个人都很重要。T finish the building in a mnth is difficult. 要在一个月内完成这座建筑是困难的。
2. 动词不定式与疑问词hw， what，when，where， which等连用构成不定式短语，也可作主语。 Hw t use the cmputer is the questin.如何使用计算机是个问题。 Where t g has nt been decided. 去哪儿还没有定下来。
3. 当主语较长，谓语较短时，常用it作形式主语放在句首，而将真正的主语—不定式放到谓语的后面。It’s nt easy t wrk ut the prblem. = T wrk ut the prblem is nt easy.计算出这道题不容易。It is interesting t play with snw in winter. 冬季里玩雪是很有趣的。It is terrible t see the ship sinking int the sea. 目睹轮船沉入大海，真是太可怕了。
it作形式主语代替真正主语不定式常见于以下情况中：It is + adj. + fr/f sb. t d sth.It is + n. + fr sb. t d sth.It takes/tk/will take sb. sme time/ mney t d sth.
用于此句型的形容词有：easy, hard, difficult, pssible, imprtant, impssible, necessary, gd, bad, exciting, interesting, surprising等。
1) It is＋adj. (＋fr sb.) t d sth.
sb. 是t d sth.的逻辑主语
It is +adj.+ fr/f sb. t d sth.
It is necessary fr yung students t learn a freign language. 对年轻的学生来说，学习一门外语是必要的。It is necessary fr yu t change yur jb. 你有必要换工作。It was impssible fr them t cmplete the task in such a shrt time. 他们不可能在这么短的时间内完成这项任务。It’s imprtant fr us t keep the water clean. 保持水质清洁对我们来说是很重要的。
常见的此类形容词有： kind, nice, wise, silly, plite, implite, friendly, flish, clever等。
2) It is＋adj.＋f sb.＋t d sth.
形容词用来表示不定式的逻辑主语（sb.）的性质、特征或品德
It was silly f yu t give up such a gd chance！ 你放弃这么好的一个机会，真傻!It’s very kind f yu t say s. 你这样说真是太好了。 It is friendly f the family t try t make me feel at hme in their huse. 这家人对我很友好，使我在他们家里感到宾至如归。It was rude f the by t jump the queue! 那个男孩插队真是太无礼了!
常见的名词有：pity, shame, pleasure, ne’s duty, ne’s jb, fun, jy, gd manners, bad manners等。
It is + n. + fr sb. t d sth.
What a pity it is fr yu t have missed such a wnderful film. 真遗憾你错过了这样一个精彩的电影。 It must be great fun t fly t the mn in a spaceship. 乘宇宙飞船飞往月球一定很有趣。
It takes/tk/will take sb. sme time/mney t d sth. 做某事花费某人多长时间（钱）
It tk me mre than an hur t d my hmewrk yesterday evening. 昨天晚上我做作业用了一个多小时。 It will take us a lt f mney t buy that huse. 买那套房子要花费我们很多钱。
Jin the wrds t make full sentences, and then jin the sentences t make a paragraph. Yu can add yur wn sentences if necessary t make yur paragraph mre meaningful.
1. imprtant/ avid/ passive cigarette smking It is imprtant t avid passive cigarette smking.
2. will take/ nutritin specialist/ a balanced diet menu/ make/ an hur/ fr yu
It will take the nutritin specialist an hur t make a balanced diet fr yu.
3. useful/ turn t/ fitness cnsultant/ fr advice
It is useful t turn t the fitness cnsultant fradvice.
4. illegal/ dangerus /take drugs5. harmful / skip breakfast / ften
It is illegal and dangerus t take drugs.
It is harmful t skip breakfast ften.
Cmplete the cnversatins with the crrect frms f the phrases in the bx.
1. A: Hell, dctr. I want t lse weight, but I just can’t seem t d it. What can yu d t help me?B: Well, first, it’s necessary t ______________ what yu eat. Cut ut all fatty fd and sugary drinks, and eat mre fruit and vegetables.
be in cntrl f
begin with, be in cntrl f, make a chice, decide n, make up ne’s mind
2. A: I really need t __________ a way t exercise mre. I culd use a fitness app, but my phne’s full.B: S delete a few files. I’m sure the app desn’t take up much space.3. A: Befre exercising, always d a few warm-ups t ___________.B: I knw. But then I always feel t tired t cntinue!
4. A: Shuld I g fr the pizza r the fried chicken? I hate _____________________ like these. Yu knw what—I’m ging t eat bth!B: Ww! Dn’t eat t much junk fd-yu’ll get fat, I’ve actually ___________________ t g n a diet, s I’ll just stick t the fruit salad.
making/t make a chice
made up my mind
根据句意完成句子。1. Smetimes _____________________ t use examples t explain abstract cncepts. (helpful)有时候举例也许有助于解释抽象的概念。2. It is nt ____________ t shw ff wealth everywhere. 她到处炫富，这不明智。
it might/may be helpful
3. In my pinin, it is difficult fr us _______________ f imprving my ral English in such a shrt time. 我认为这么短的时间之内提高我们的英语口语，我们难以达到目标。4. He reminded me that ________________ t buy a huse f my wn near the schl. 他提醒我在学校附近买一个房子很方便。5. They realized that __________________（没有什么价值）t argue abut the matter.
t reach the gal
it was cnvenient
it was f little value
6. It’s difficult but pssible fr different peple _____________________ (和谐相处) each ther. (harmny)7. We wnder hw _____________（可能）fr a persn t learn all the grammar rules. 8. It is impssible fr my questin ______________ in his absence. 他不在，我的问题就答复不了。
t live in harmny with
it was pssible
t be answered
9. It is clever _________________（你相信）Chinese medicine, which is f great help t yur disease. 10. _______________ t pay such a lt f mney fr their emplyees’ training these years. 这些年来值得为员工的培训付这么多的钱。11. ________________（很荣幸）t receive the invitatin t such a great party. I was really excited then. (hnur)12. It tk a lng time __________ the skills he needed t becme a prfessinal artist. (acquire)
f yu t believe in
It is wrthwhile
It was an hnur
Finish the exercises in yur wrkbk.
T learn infinitives used as subjectsT use infinitives t cmplete sme exercises
Lk at the fllwing sentences and pay attentin t the italicised infinitives. Find mre infinitives in the reading passage. In pairs, discuss their meanings and functins.1 T change bad habits is never easy.2 It tk the surgen (n.外科医生) three hurs t finish my mther’s lung surgery (n. 外科手术).
3 T jin the Peple’s Liberatin (n. 解放) Army , it is required fr men t shave ff (剃掉，刮掉)their beards.4 It was nt plite t disturb(v. 打扰)yur neighburs with lud music last night.
【Thinking】 What’s the functin f the phrase “t jin the Peple’s Liberatin Amy” in sentence 3?
不定式在句子中可以充当如下成分：
本节课我们主要讲解不定式在句子中作主语的情况。
不定式可以作除“谓语”外的句子成分。
动词不定式作主语常见的三种形式1. 不定式作主语通常位于句首，表示具体的某次动作，谓语动词用单数。 T see is t believe. 百闻不如一见。 T get up early is necessary. 早起是必要的。T learn a skill is very imprtant fr everyne in sciety. 学习一项技能对社会上的每个人都很重要。T finish the building in a mnth is difficult. 要在一个月内完成这座建筑是困难的。
2. 动词不定式与疑问词hw， what，when，where， which等连用构成不定式短语，也可作主语。 Hw t use the cmputer is the questin.如何使用计算机是个问题。 Where t g has nt been decided. 去哪儿还没有定下来。
3. 当主语较长，谓语较短时，常用it作形式主语放在句首，而将真正的主语—不定式放到谓语的后面。It’s nt easy t wrk ut the prblem. = T wrk ut the prblem is nt easy.计算出这道题不容易。It is interesting t play with snw in winter. 冬季里玩雪是很有趣的。It is terrible t see the ship sinking int the sea. 目睹轮船沉入大海，真是太可怕了。
it作形式主语代替真正主语不定式常见于以下情况中：It is + adj. + fr/f sb. t d sth.It is + n. + fr sb. t d sth.It takes/tk/will take sb. sme time/ mney t d sth.
用于此句型的形容词有：easy, hard, difficult, pssible, imprtant, impssible, necessary, gd, bad, exciting, interesting, surprising等。
1) It is＋adj. (＋fr sb.) t d sth.
sb. 是t d sth.的逻辑主语
It is +adj.+ fr/f sb. t d sth.
It is necessary fr yung students t learn a freign language. 对年轻的学生来说，学习一门外语是必要的。It is necessary fr yu t change yur jb. 你有必要换工作。It was impssible fr them t cmplete the task in such a shrt time. 他们不可能在这么短的时间内完成这项任务。It’s imprtant fr us t keep the water clean. 保持水质清洁对我们来说是很重要的。
常见的此类形容词有： kind, nice, wise, silly, plite, implite, friendly, flish, clever等。
2) It is＋adj.＋f sb.＋t d sth.
形容词用来表示不定式的逻辑主语（sb.）的性质、特征或品德
It was silly f yu t give up such a gd chance！ 你放弃这么好的一个机会，真傻!It’s very kind f yu t say s. 你这样说真是太好了。 It is friendly f the family t try t make me feel at hme in their huse. 这家人对我很友好，使我在他们家里感到宾至如归。It was rude f the by t jump the queue! 那个男孩插队真是太无礼了!
常见的名词有：pity, shame, pleasure, ne’s duty, ne’s jb, fun, jy, gd manners, bad manners等。
It is + n. + fr sb. t d sth.
What a pity it is fr yu t have missed such a wnderful film. 真遗憾你错过了这样一个精彩的电影。 It must be great fun t fly t the mn in a spaceship. 乘宇宙飞船飞往月球一定很有趣。
It takes/tk/will take sb. sme time/mney t d sth. 做某事花费某人多长时间（钱）
It tk me mre than an hur t d my hmewrk yesterday evening. 昨天晚上我做作业用了一个多小时。 It will take us a lt f mney t buy that huse. 买那套房子要花费我们很多钱。
Jin the wrds t make full sentences, and then jin the sentences t make a paragraph. Yu can add yur wn sentences if necessary t make yur paragraph mre meaningful.
1. imprtant/ avid/ passive cigarette smking It is imprtant t avid passive cigarette smking.
2. will take/ nutritin specialist/ a balanced diet menu/ make/ an hur/ fr yu
It will take the nutritin specialist an hur t make a balanced diet fr yu.
3. useful/ turn t/ fitness cnsultant/ fr advice
It is useful t turn t the fitness cnsultant fradvice.
4. illegal/ dangerus /take drugs5. harmful / skip breakfast / ften
It is illegal and dangerus t take drugs.
It is harmful t skip breakfast ften.
Cmplete the cnversatins with the crrect frms f the phrases in the bx.
1. A: Hell, dctr. I want t lse weight, but I just can’t seem t d it. What can yu d t help me?B: Well, first, it’s necessary t ______________ what yu eat. Cut ut all fatty fd and sugary drinks, and eat mre fruit and vegetables.
be in cntrl f
begin with, be in cntrl f, make a chice, decide n, make up ne’s mind
2. A: I really need t __________ a way t exercise mre. I culd use a fitness app, but my phne’s full.B: S delete a few files. I’m sure the app desn’t take up much space.3. A: Befre exercising, always d a few warm-ups t ___________.B: I knw. But then I always feel t tired t cntinue!
4. A: Shuld I g fr the pizza r the fried chicken? I hate _____________________ like these. Yu knw what—I’m ging t eat bth!B: Ww! Dn’t eat t much junk fd-yu’ll get fat, I’ve actually ___________________ t g n a diet, s I’ll just stick t the fruit salad.
making/t make a chice
made up my mind
根据句意完成句子。1. Smetimes _____________________ t use examples t explain abstract cncepts. (helpful)有时候举例也许有助于解释抽象的概念。2. It is nt ____________ t shw ff wealth everywhere. 她到处炫富，这不明智。
it might/may be helpful
3. In my pinin, it is difficult fr us _______________ f imprving my ral English in such a shrt time. 我认为这么短的时间之内提高我们的英语口语，我们难以达到目标。4. He reminded me that ________________ t buy a huse f my wn near the schl. 他提醒我在学校附近买一个房子很方便。5. They realized that __________________（没有什么价值）t argue abut the matter.
t reach the gal
it was cnvenient
it was f little value
6. It’s difficult but pssible fr different peple _____________________ (和谐相处) each ther. (harmny)7. We wnder hw _____________（可能）fr a persn t learn all the grammar rules. 8. It is impssible fr my questin ______________ in his absence. 他不在，我的问题就答复不了。
t live in harmny with
it was pssible
t be answered
9. It is clever _________________（你相信）Chinese medicine, which is f great help t yur disease. 10. _______________ t pay such a lt f mney fr their emplyees’ training these years. 这些年来值得为员工的培训付这么多的钱。11. ________________（很荣幸）t receive the invitatin t such a great party. I was really excited then. (hnur)12. It tk a lng time __________ the skills he needed t becme a prfessinal artist. (acquire)
f yu t believe in
It is wrthwhile
It was an hnur
Finish the exercises in yur wrkbk.
相关课件
人教版 (2019)选择性必修 第二册Unit 3 Food and Culture试讲课课件ppt： 这是一份人教版 (2019)选择性必修 第二册Unit 3 Food and Culture试讲课课件ppt，共1页。
高中英语人教版 (2019)选择性必修 第三册Unit 3 Environmental Protection教学演示课件ppt： 这是一份高中英语人教版 (2019)选择性必修 第三册Unit 3 Environmental Protection教学演示课件ppt，共26页。PPT课件主要包含了she，him，his，we were，she would，that，those，then，there，take等内容，欢迎下载使用。
人教版 (2019)选择性必修 第二册Unit 1 Science and Scientists示范课ppt课件： 这是一份人教版 (2019)选择性必修 第二册Unit 1 Science and Scientists示范课ppt课件，共29页。PPT课件主要包含了S+V+P，link verb，behind，how，that，why，where，引 导 词等内容，欢迎下载使用。
