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高中英语人教版 (2019)选择性必修 第三册Unit 2 Healthy Lifestyle试讲课ppt课件
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这是一份高中英语人教版 (2019)选择性必修 第三册Unit 2 Healthy Lifestyle试讲课ppt课件，文件包含习作我的家人范文+点评+升格pptx、习作我的家人pptx、习作我的家人doc等3份课件配套教学资源，其中PPT共85页， 欢迎下载使用。
Discver useful structures
Phrases: shave ff
Master the use f t d as subject in this unit
Wrds: surgen; liberatin; shave; disturb; cnsultant; skip
It is imprtant t avid passive cigarette smking.T jin the Peple’s Liberatin Army, it is required fr men t shave ff their beards.
Lk at the fllwing sentences and discuss the functin f the use f t d
1 T change bad habits is never easy.
The Infinitive is the subject f the sentence!
The Infinitive is the real subject f the sentence!
It tk extra time t d the jb prperly.
T jin the Peple’s Liberatin Army, it is required fr men t shave ff their beards.
It was nt plite t disturb yur neighbrs with lud music last night.
infinitive: 一般时 “d”
被动: t be dne
infinitive: 进行时 “be ding”
主动: t be ding
infinitive: 完成时 “have dne”
主动: t have dne
被动: t have been dne
Infinitive as the subject f the sentence: 不定式作主语
Example 1: T help thers is ur duty.
Example 2: T get gd grades requires a lt f hard wrk.
Infinitive as the real subject f the sentence:
_________( help ) thers is ur duty.
It is ur duty t help thers.
系动词Be 的单数形式
It (形式主语) ~ t d（真正主语）
Infinitive as the real subject f the sentence: 不定式作真正主语，it 做形式主语的常见结构
It is +adj.+(fr sb) t d 形容事物
(adj: easy ,difficult, cmfrtable, pleasant, light, heavy,dangerus， tiresme, interesting , fit)
It is imprtant fr everyne t learn English well in ur rapidly develping wrld.
It is +adj.+(f sb) t d 形容人
(adj: kind, gd, nice, wise, unwise, clever, silly, stupid, flish, careless, rude, plite, naughty)
It is nice f yu t give me such advice.
It is +n.+ t d sth.
( an hnur, ur duty, a pity, a shame)
It is an hnur t be invited t cntribute t yur magazine.
It takes/tk sb sme time t d sth.
It takes me quite a lng time t understand the meaning f the painting.
单个不定式作主语，谓语动词________________
不定式作主语时,可以用it作___________
如果要说明不定式表示的动作是谁做的，可以在不定式前加一个由 fr/f 引起的短语,构成___________________
It is+adj.+fr sb t d ……（修饰事物的形容词）
(adj.: easy ,difficult, cmfrtable, pleasant, light , dangerus， tiresme, interesting , heavy, fit)
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 three hurs t finish my mther's lung surgery.3 T jin the Peple's Liberatin Army, it is required fr men t shave ff their beards.4 It was nt plite t disturb yur neighburs with lud music last night.
Mre infinitives in the reading passage： can be easy fr sme f them t frm bad habits.After all，it is nt easy t break bad habits.
小结：不定式短语在句中作主语，有时为了保持句子的平衡，避免头重脚轻，常用 it 作形式主语，而把作真正主语的不定式短语放在后面。
It is imprtant t avid passive cigarette smking.
It will take an hur fr a nutritin specialist t make a balanced diet menu fr yu.
It is useful t turn t a fitness cnsultant fr advice.
It is dangerus t take illegal drugs.
It is harmful t skip breakfast（t）ften.
Jin the sentences t make a paragraph. Yu can add yur wn sentences if necessary t make yur paragraph mre meaningful.
T get healthy and get rid f bad habits，smetimes it is als a gd idea t get prfessinal help. It will take an hur fr a nutritin specialist t make a balanced diet menu fr yu. It is als useful t turn t a fitness cnsultant fr advice. Yu can als help yurself with sme cmmn sense. Fr example，it is harmful t skip breakfast t ften. It is imprtant t avid passive cigarette smking. And，f curse，it is dangerus t take illegal drugs t.
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.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: ShuId I g fr the pizza r the fried chicken? I hate _______________like these. Yu knw what—l'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.
be in cntrl f
begin with be in cntrl f make a chice decide n make up ne's mind
making chices
made up my mind
1 A: I'm thinking abut riding a mtrbike t schl. What d yu think? B: Oh? Well, I think it's necessary ________________________________ first.2 A: Hw cme yu fainted suddenly yesterday? Didn't yu eat anything in the mrning? B: I'm n a diet. A: That's s bad! Yu knw it's imprtant _____________________ every mrning.3 A: I ften see yu arund Central Park. B: Yes, I like _______________________ there every weekend. We usually play ball games.4 A: I hear that the new headmaster has t many things t d. B: Yes. It will be a big challenge fr him_____________________________________.
A grup f students are chatting after class. Cmplete the cnversatins with the crrect frms f the phrases in the bx.
eat a gd breakfast get yur parents’ permissin hang ut with friends balance wrk and persnal life
t get yur parents’ permissin
t eat a gd breakfast
hanging ut with friends
t balance （his） wrk and persnal life
(WORKBOOK P69 EX. 1)
These days, the attitude f many peple is t just eat fd that they think tastes gd. Hwever, this can lead t an unbalanced diet, which ften results in shrt-term and lng-term health issues. If yu want t stay healthy, then yu need a balanced diet. Needless t say, it is nt always easy t plan such a diet, but the gd thing is that there is a lt f advice ut there. T save yurself sme time, yu culd try lking at a "fd pyramid“—a chart that shws yu hw much f each type f fd t eat. Yu culd als make healthy fd at hme and try t avid eating packaged fds r fast fd. It is essential fr yu t eat healthy fd. Yu will feel better, have mre energy, and have fewer health prblems in later life.·As the subject:__________________________ ·As the bject:_________________________·As the predicative:_________________________ ·As the attribute:_________________________·As the adverbial:_________________________
Number all the infinitives in the passage. Then put the numbers int the different categries.
1_________
2______________
(WORKBOOK P69 EX. 2)
It will take us abut half an hur________________（到达）the West Lake. In the mrning, we will visit the places f interest arund r near the West Lake, including the lake, Gu Hill, Lingyin Temple, and Lei Feng Pagda. This will be a gd chance_____________（欣赏）the beautiful scenery as well as the histry and culture f Hangzhu. In the afternn we may_______（尝试）a taste f Lngjing Tea and ___________ （看电影）. Fr the evening, there are many things we can chse frm, like dinner, shpping, and experiencing the lcal night life. It will be fun fr us___________（选择）tgether what we want t d after yu arrive.
A hliday is a perfect time t relax. Yu are planning a trip t Hangzhu fr yur American friend. Cmplete the paragraph abut yur plan.
t reach/get t
t appreciate
(WORKBOOK P69 EX. 3)
1. Recite new wrds and phrases.
2. Write an article abut yur lifestyle using t d as subject.
1 动词不定式作主语 （ 1）用作主语的动词不定式及其短语常出现在谓语动词之后，而句 首用形式主语it 代替。It is nt right fr peple with the virus t g t public places. 携带这种病毒的人去公共场所是不对的。［词汇复现］ （ 2）不定式作主语位于句首常出现在正式文体中，单个不定式作主 语，谓语动词用单数形式。T get enugh prtein each day is beneficial t ur health. 每天摄取足够的蛋白质对我们的健康有益。
（3）常用句型： ①It is + adj. + fr /f sb. + t d sth. 形容词表示事物或行为的特点或性质，介词用fr，如gd，easy， difficult，pssible，necessary。 形容词表示人的品格或特点，介词用f，如kind，plite，implite， rude，flish。It is necessary fr us t prevent the war breaking ut. 我们有必要防止战争爆发。［词汇复现］ It is t implite f yu t speak t an utstanding teacher like this. 你这样对一位杰出的老师说话太无礼了。［词汇复现］ ②It +be+ 名词+t d sth. 做某事是…… It’s my duty t take gd care f my yunger sister. 照顾好我的妹妹是我的责任。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。③It takes sb. sme time t d sth. 做某事花费某人多长时间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。
单句语法填空（1）Smetimes it’s better （remain） silent. （2）Althugh is a hard task t prtect ur envirnment，we can’t help but g ahead. （3） （cntrl） the air pllutin is necessary. （4）It was flish him t endanger his life in that way. （5）Dn’t yu think it is rude him t ask a lady her age? （6）It is difficult him t live n such a small salary.
T cntrl/Cntrlling
完成句子（7）I dn’t think （你问……是不礼貌的） hw lng the interview will last. （8） （保卫…… 是我们的职责） the cuntry against its enemies. （9） （ …… 花了我半个小时）t wash the clthes.
it is implite f yu t ask
It’s ur duty t defend
It tk me half an hur
2 疑问词 + 不定式（1）可用于该结构的疑问词疑问代词：wh，whm，what，which 疑问副词：when，where，hw （2）常接该结构的动词：knw，see，decide，tell，ask，cnsider，explain，learn，wnder （3）该结构的句法功能：主语、宾语和表语Hw t cnstruct the theretical framewrk is very imprtant. 怎样构建理论框架很重要。（作主语）［词汇复现］ The questin is when t start develping such a vaccine. 问题是何时开始研制这种疫苗。（作表语）［词汇复现］ I knw where t find that patritic yung man. 我知道到哪里去找那个爱国的年轻人。（作宾语）［词汇复现］ 【学法点拨】 “ 疑问词+不定式”结构相当于一个由疑问词引导的名词性从句。 A judge must decide whse prf t believe. = A judge must decide whse prf he/she shuld believe. 法官必须决定相信谁的证据。［词汇复现］
单句语法填空（1）I culdn’t decide bike t buy. （2）Twenty students want t attend the class that aims t teach hw （read） fast. （3）When and where （vte） hasn’t been decided. 完成句子（4） （何时装修） the huse hasn’t been decided. （5）They didn’t decide （在哪里举行） the debate. （6）The questin is （怎样拆卸） the machine.
When t decrate
where t hld
hw t take apart
3 不定式短语作独立成分 （1）一些不定式短语可用作独立成分，通常位于句首，有时位于句中或句末，要用逗号同其他句子成分隔开。T tell the truth，I dn’t like the gifted actress in the mvie. 说实话，我不喜欢这部影片中的那个有天赋的女演员。［词汇复现］ （2）常用短语 t sum up 总而言之 t be brief 简言之t tell the truth 说实话 t be exact 确切地说t cnclude 总而言之，最后t be frank 坦白地说t begin/start with 首先t be hnest 说老实话T be frank，yur thery is t abstract fr the students t understand. 坦白说，你的理论太抽象，学生们理解不了。［词汇复现］
完成句子（1） （总而言之），mst f the cmmittee members supprted the idea but a few were against it. （2） （简言之），he was happy with the result. （3）She wrte， （确切地说），ten nvels in her lifetime.（4） （首先），he’s t yung fr that kind f jb. （5） （说老实话），I dn’t really want t g t the party tnight.
T sum up/T cnclude
T be brief
t be exact
T begin/start with
T be hnest
Language pints
教材原句p.17T jin the Peple’s Liberatin Army，it is required fr men t shave ff their beards. 要加入人民解放军，男人必须刮掉胡子。
3 shave vi.，vt. & n. 剃（须发）；（尤指）刮脸 shave ff 剃掉；刮去 搭配shave ne’s head 剃头shave the lawn 修剪草坪give sb. a shave 给某人刮脸/ 剃须His jaw was bleeding and the dctr had t shave ff his beard t deal with the cut. 他的下巴在流血，医生不得不刮掉他的胡子来处理伤口。［词汇复现］ He desn’t shave every mrning. 他不是每天早上都刮脸。 The nurse washed and shaved him. 护士给他洗了脸，刮了胡子。
完成句子（1）In rder t be accepted by his girlfriend， Charles decided （刮掉胡子）. （2）He didn’t like the barber （给他剃头）with an electric tl. （3）Thugh ut f shape，the ld man （给自己刮脸） nce a week.
t shave ff his beard
t shave his head
gives himself a shave
教材原句p.17It was nt plite t disturb yur neighburs with lud music last night. 昨晚播放吵闹的音乐打扰你的邻居是不礼貌的。
4 disturb vt. 打扰；搅乱；使烦恼If yu get up early，try nt t disturb yur fellws. 如果你起得早，尽量不要打扰你的同伴。［词汇复现］ Dn’t disturb the papers abut membership n my desk. 别弄乱我桌上有关会员资格的文件。［词汇复现］ The lud scream panicked and disturbed me. 高声的尖叫使我惊恐不安。［词汇复现］ 【单词积累】 disturbed adj. 心烦意乱的，烦恼的disturbing adj. 引起烦恼的；令人不安的They were all disturbed by the disturbing news；that is，the news disturbed all f them. 他们都对这个令人不安的消息深感不安；也就是说，这个消息使他们都感到不安。
【词语辨析】disturb，bther 与 interrupt （1）disturb 侧重扰乱某种状态或秩序。（2）bther 指为小事所“烦扰”，带有稍微抱怨的意味。 （3）interrupt 侧重打断某活动的进程，使其不能进行下去。Prductin at the factry was interrupted fr tw hurs because there was n electricity. 由于没有电，工厂的生产中断了两个小时。
单句语法填空（1）It is （disturb）t think a dangerus wild animal is still in the quiet cuntryside. （2）I’m srry （disturb） yu s late，but my car’s brken dwn and I dn’t have my phne with me. 完成句子（3）［词汇复现］He dreamed a terrible dream， which was s vivid that it had ________________ （使他不安） fr days. （4）Everyne was bred t death with his （令人不安的话语）. 选词填空（disturb/bther/interrupt） （5）I didn’t want t him with my trifle（琐事）. （6）The player tried t speak，but the referee him. （7）The by apparently the class.
disturbing
disturbed him
disturbing wrds
interrupted
教材原句p.17It is harmful t skip breakfast ften.经常不吃早餐是有害的。
5 skip vt. ，vi. & n. （1）vt. 跳过；不参加；悄悄溜走 v. 跳过，略过skip a grade 跳级 skip breakfast 不吃早饭 skip schl/class 逃学 / 逃课 skip ver the fence跳过栅栏 skip ver the last part f the bk 略过书中最后一部分 The criminal whse angle was injured skipped the scene befre the plice arrived. 在警察到达之前，那个脚踝受伤的罪犯悄悄逃离了现场。［词汇复现］ （2）vi. 蹦蹦跳跳地走；跳绳 n. 蹦跳skip happily alng beside me在我身边开心地蹦蹦跳跳
单句语法填空（1）When he was yung，he ften （skip） breakfast. （2）They saw the man with a little girl （skip） alng behind him. 完成句子（3） （翘课） is f n benefit t students. （4）The girls were （跳绳） in the playgrund.
Skipping class
skipping（rpe）
Discver useful structures
Phrases: shave ff
Master the use f t d as subject in this unit
Wrds: surgen; liberatin; shave; disturb; cnsultant; skip
It is imprtant t avid passive cigarette smking.T jin the Peple’s Liberatin Army, it is required fr men t shave ff their beards.
Lk at the fllwing sentences and discuss the functin f the use f t d
1 T change bad habits is never easy.
The Infinitive is the subject f the sentence!
The Infinitive is the real subject f the sentence!
It tk extra time t d the jb prperly.
T jin the Peple’s Liberatin Army, it is required fr men t shave ff their beards.
It was nt plite t disturb yur neighbrs with lud music last night.
infinitive: 一般时 “d”
被动: t be dne
infinitive: 进行时 “be ding”
主动: t be ding
infinitive: 完成时 “have dne”
主动: t have dne
被动: t have been dne
Infinitive as the subject f the sentence: 不定式作主语
Example 1: T help thers is ur duty.
Example 2: T get gd grades requires a lt f hard wrk.
Infinitive as the real subject f the sentence:
_________( help ) thers is ur duty.
It is ur duty t help thers.
系动词Be 的单数形式
It (形式主语) ~ t d（真正主语）
Infinitive as the real subject f the sentence: 不定式作真正主语，it 做形式主语的常见结构
It is +adj.+(fr sb) t d 形容事物
(adj: easy ,difficult, cmfrtable, pleasant, light, heavy,dangerus， tiresme, interesting , fit)
It is imprtant fr everyne t learn English well in ur rapidly develping wrld.
It is +adj.+(f sb) t d 形容人
(adj: kind, gd, nice, wise, unwise, clever, silly, stupid, flish, careless, rude, plite, naughty)
It is nice f yu t give me such advice.
It is +n.+ t d sth.
( an hnur, ur duty, a pity, a shame)
It is an hnur t be invited t cntribute t yur magazine.
It takes/tk sb sme time t d sth.
It takes me quite a lng time t understand the meaning f the painting.
单个不定式作主语，谓语动词________________
不定式作主语时,可以用it作___________
如果要说明不定式表示的动作是谁做的，可以在不定式前加一个由 fr/f 引起的短语,构成___________________
It is+adj.+fr sb t d ……（修饰事物的形容词）
(adj.: easy ,difficult, cmfrtable, pleasant, light , dangerus， tiresme, interesting , heavy, fit)
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 three hurs t finish my mther's lung surgery.3 T jin the Peple's Liberatin Army, it is required fr men t shave ff their beards.4 It was nt plite t disturb yur neighburs with lud music last night.
Mre infinitives in the reading passage： can be easy fr sme f them t frm bad habits.After all，it is nt easy t break bad habits.
小结：不定式短语在句中作主语，有时为了保持句子的平衡，避免头重脚轻，常用 it 作形式主语，而把作真正主语的不定式短语放在后面。
It is imprtant t avid passive cigarette smking.
It will take an hur fr a nutritin specialist t make a balanced diet menu fr yu.
It is useful t turn t a fitness cnsultant fr advice.
It is dangerus t take illegal drugs.
It is harmful t skip breakfast（t）ften.
Jin the sentences t make a paragraph. Yu can add yur wn sentences if necessary t make yur paragraph mre meaningful.
T get healthy and get rid f bad habits，smetimes it is als a gd idea t get prfessinal help. It will take an hur fr a nutritin specialist t make a balanced diet menu fr yu. It is als useful t turn t a fitness cnsultant fr advice. Yu can als help yurself with sme cmmn sense. Fr example，it is harmful t skip breakfast t ften. It is imprtant t avid passive cigarette smking. And，f curse，it is dangerus t take illegal drugs t.
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.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: ShuId I g fr the pizza r the fried chicken? I hate _______________like these. Yu knw what—l'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.
be in cntrl f
begin with be in cntrl f make a chice decide n make up ne's mind
making chices
made up my mind
1 A: I'm thinking abut riding a mtrbike t schl. What d yu think? B: Oh? Well, I think it's necessary ________________________________ first.2 A: Hw cme yu fainted suddenly yesterday? Didn't yu eat anything in the mrning? B: I'm n a diet. A: That's s bad! Yu knw it's imprtant _____________________ every mrning.3 A: I ften see yu arund Central Park. B: Yes, I like _______________________ there every weekend. We usually play ball games.4 A: I hear that the new headmaster has t many things t d. B: Yes. It will be a big challenge fr him_____________________________________.
A grup f students are chatting after class. Cmplete the cnversatins with the crrect frms f the phrases in the bx.
eat a gd breakfast get yur parents’ permissin hang ut with friends balance wrk and persnal life
t get yur parents’ permissin
t eat a gd breakfast
hanging ut with friends
t balance （his） wrk and persnal life
(WORKBOOK P69 EX. 1)
These days, the attitude f many peple is t just eat fd that they think tastes gd. Hwever, this can lead t an unbalanced diet, which ften results in shrt-term and lng-term health issues. If yu want t stay healthy, then yu need a balanced diet. Needless t say, it is nt always easy t plan such a diet, but the gd thing is that there is a lt f advice ut there. T save yurself sme time, yu culd try lking at a "fd pyramid“—a chart that shws yu hw much f each type f fd t eat. Yu culd als make healthy fd at hme and try t avid eating packaged fds r fast fd. It is essential fr yu t eat healthy fd. Yu will feel better, have mre energy, and have fewer health prblems in later life.·As the subject:__________________________ ·As the bject:_________________________·As the predicative:_________________________ ·As the attribute:_________________________·As the adverbial:_________________________
Number all the infinitives in the passage. Then put the numbers int the different categries.
1_________
2______________
(WORKBOOK P69 EX. 2)
It will take us abut half an hur________________（到达）the West Lake. In the mrning, we will visit the places f interest arund r near the West Lake, including the lake, Gu Hill, Lingyin Temple, and Lei Feng Pagda. This will be a gd chance_____________（欣赏）the beautiful scenery as well as the histry and culture f Hangzhu. In the afternn we may_______（尝试）a taste f Lngjing Tea and ___________ （看电影）. Fr the evening, there are many things we can chse frm, like dinner, shpping, and experiencing the lcal night life. It will be fun fr us___________（选择）tgether what we want t d after yu arrive.
A hliday is a perfect time t relax. Yu are planning a trip t Hangzhu fr yur American friend. Cmplete the paragraph abut yur plan.
t reach/get t
t appreciate
(WORKBOOK P69 EX. 3)
1. Recite new wrds and phrases.
2. Write an article abut yur lifestyle using t d as subject.
1 动词不定式作主语 （ 1）用作主语的动词不定式及其短语常出现在谓语动词之后，而句 首用形式主语it 代替。It is nt right fr peple with the virus t g t public places. 携带这种病毒的人去公共场所是不对的。［词汇复现］ （ 2）不定式作主语位于句首常出现在正式文体中，单个不定式作主 语，谓语动词用单数形式。T get enugh prtein each day is beneficial t ur health. 每天摄取足够的蛋白质对我们的健康有益。
（3）常用句型： ①It is + adj. + fr /f sb. + t d sth. 形容词表示事物或行为的特点或性质，介词用fr，如gd，easy， difficult，pssible，necessary。 形容词表示人的品格或特点，介词用f，如kind，plite，implite， rude，flish。It is necessary fr us t prevent the war breaking ut. 我们有必要防止战争爆发。［词汇复现］ It is t implite f yu t speak t an utstanding teacher like this. 你这样对一位杰出的老师说话太无礼了。［词汇复现］ ②It +be+ 名词+t d sth. 做某事是…… It’s my duty t take gd care f my yunger sister. 照顾好我的妹妹是我的责任。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。③It takes sb. sme time t d sth. 做某事花费某人多长时间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。
单句语法填空（1）Smetimes it’s better （remain） silent. （2）Althugh is a hard task t prtect ur envirnment，we can’t help but g ahead. （3） （cntrl） the air pllutin is necessary. （4）It was flish him t endanger his life in that way. （5）Dn’t yu think it is rude him t ask a lady her age? （6）It is difficult him t live n such a small salary.
T cntrl/Cntrlling
完成句子（7）I dn’t think （你问……是不礼貌的） hw lng the interview will last. （8） （保卫…… 是我们的职责） the cuntry against its enemies. （9） （ …… 花了我半个小时）t wash the clthes.
it is implite f yu t ask
It’s ur duty t defend
It tk me half an hur
2 疑问词 + 不定式（1）可用于该结构的疑问词疑问代词：wh，whm，what，which 疑问副词：when，where，hw （2）常接该结构的动词：knw，see，decide，tell，ask，cnsider，explain，learn，wnder （3）该结构的句法功能：主语、宾语和表语Hw t cnstruct the theretical framewrk is very imprtant. 怎样构建理论框架很重要。（作主语）［词汇复现］ The questin is when t start develping such a vaccine. 问题是何时开始研制这种疫苗。（作表语）［词汇复现］ I knw where t find that patritic yung man. 我知道到哪里去找那个爱国的年轻人。（作宾语）［词汇复现］ 【学法点拨】 “ 疑问词+不定式”结构相当于一个由疑问词引导的名词性从句。 A judge must decide whse prf t believe. = A judge must decide whse prf he/she shuld believe. 法官必须决定相信谁的证据。［词汇复现］
单句语法填空（1）I culdn’t decide bike t buy. （2）Twenty students want t attend the class that aims t teach hw （read） fast. （3）When and where （vte） hasn’t been decided. 完成句子（4） （何时装修） the huse hasn’t been decided. （5）They didn’t decide （在哪里举行） the debate. （6）The questin is （怎样拆卸） the machine.
When t decrate
where t hld
hw t take apart
3 不定式短语作独立成分 （1）一些不定式短语可用作独立成分，通常位于句首，有时位于句中或句末，要用逗号同其他句子成分隔开。T tell the truth，I dn’t like the gifted actress in the mvie. 说实话，我不喜欢这部影片中的那个有天赋的女演员。［词汇复现］ （2）常用短语 t sum up 总而言之 t be brief 简言之t tell the truth 说实话 t be exact 确切地说t cnclude 总而言之，最后t be frank 坦白地说t begin/start with 首先t be hnest 说老实话T be frank，yur thery is t abstract fr the students t understand. 坦白说，你的理论太抽象，学生们理解不了。［词汇复现］
完成句子（1） （总而言之），mst f the cmmittee members supprted the idea but a few were against it. （2） （简言之），he was happy with the result. （3）She wrte， （确切地说），ten nvels in her lifetime.（4） （首先），he’s t yung fr that kind f jb. （5） （说老实话），I dn’t really want t g t the party tnight.
T sum up/T cnclude
T be brief
t be exact
T begin/start with
T be hnest
Language pints
教材原句p.17T jin the Peple’s Liberatin Army，it is required fr men t shave ff their beards. 要加入人民解放军，男人必须刮掉胡子。
3 shave vi.，vt. & n. 剃（须发）；（尤指）刮脸 shave ff 剃掉；刮去 搭配shave ne’s head 剃头shave the lawn 修剪草坪give sb. a shave 给某人刮脸/ 剃须His jaw was bleeding and the dctr had t shave ff his beard t deal with the cut. 他的下巴在流血，医生不得不刮掉他的胡子来处理伤口。［词汇复现］ He desn’t shave every mrning. 他不是每天早上都刮脸。 The nurse washed and shaved him. 护士给他洗了脸，刮了胡子。
完成句子（1）In rder t be accepted by his girlfriend， Charles decided （刮掉胡子）. （2）He didn’t like the barber （给他剃头）with an electric tl. （3）Thugh ut f shape，the ld man （给自己刮脸） nce a week.
t shave ff his beard
t shave his head
gives himself a shave
教材原句p.17It was nt plite t disturb yur neighburs with lud music last night. 昨晚播放吵闹的音乐打扰你的邻居是不礼貌的。
4 disturb vt. 打扰；搅乱；使烦恼If yu get up early，try nt t disturb yur fellws. 如果你起得早，尽量不要打扰你的同伴。［词汇复现］ Dn’t disturb the papers abut membership n my desk. 别弄乱我桌上有关会员资格的文件。［词汇复现］ The lud scream panicked and disturbed me. 高声的尖叫使我惊恐不安。［词汇复现］ 【单词积累】 disturbed adj. 心烦意乱的，烦恼的disturbing adj. 引起烦恼的；令人不安的They were all disturbed by the disturbing news；that is，the news disturbed all f them. 他们都对这个令人不安的消息深感不安；也就是说，这个消息使他们都感到不安。
【词语辨析】disturb，bther 与 interrupt （1）disturb 侧重扰乱某种状态或秩序。（2）bther 指为小事所“烦扰”，带有稍微抱怨的意味。 （3）interrupt 侧重打断某活动的进程，使其不能进行下去。Prductin at the factry was interrupted fr tw hurs because there was n electricity. 由于没有电，工厂的生产中断了两个小时。
单句语法填空（1）It is （disturb）t think a dangerus wild animal is still in the quiet cuntryside. （2）I’m srry （disturb） yu s late，but my car’s brken dwn and I dn’t have my phne with me. 完成句子（3）［词汇复现］He dreamed a terrible dream， which was s vivid that it had ________________ （使他不安） fr days. （4）Everyne was bred t death with his （令人不安的话语）. 选词填空（disturb/bther/interrupt） （5）I didn’t want t him with my trifle（琐事）. （6）The player tried t speak，but the referee him. （7）The by apparently the class.
disturbing
disturbed him
disturbing wrds
interrupted
教材原句p.17It is harmful t skip breakfast ften.经常不吃早餐是有害的。
5 skip vt. ，vi. & n. （1）vt. 跳过；不参加；悄悄溜走 v. 跳过，略过skip a grade 跳级 skip breakfast 不吃早饭 skip schl/class 逃学 / 逃课 skip ver the fence跳过栅栏 skip ver the last part f the bk 略过书中最后一部分 The criminal whse angle was injured skipped the scene befre the plice arrived. 在警察到达之前，那个脚踝受伤的罪犯悄悄逃离了现场。［词汇复现］ （2）vi. 蹦蹦跳跳地走；跳绳 n. 蹦跳skip happily alng beside me在我身边开心地蹦蹦跳跳
单句语法填空（1）When he was yung，he ften （skip） breakfast. （2）They saw the man with a little girl （skip） alng behind him. 完成句子（3） （翘课） is f n benefit t students. （4）The girls were （跳绳） in the playgrund.
Skipping class
skipping（rpe）
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