1、高中英语 选择性必修第三册 UNIT 2 HEALTHY LIFESTYLEUNIT 2 HEALTHY LIFESTYLELearning About Language（2）Discover useful structuresPhrases:shave off 1Master the use of to do as subject in this unit23Words:surgeon;liberation;shave;disturb;consultant;skipKey PointsLead inIt is important to avoid passive cigarette smok
2、ing.To join the Peoples Liberation Army,it is required for men to shave off their beards.Look at the following sentences and discuss the function of the use of to do 高中英语 选择性必修第三册 UNIT 2 HEALTHY LIFESTYLE1 To change bad habits is never easy.The Infinitive is the subject of the sentence!The Infinitiv
3、e is the real subject of the sentence!It took extra time to do the job properly.To join the Peoples Liberation Army,it is required for men to shave off their beards.It was not polite to disturb your neighbors with loud music last night.4 3 2Grammar高中英语 选择性必修第三册 UNIT 2 HEALTHY LIFESTYLEBasic strategy
4、:Add tense 时态 and voice 语态 into“to do”structure!What forms does infinitive have?infinitive:一般时“do”主动主动:to do 被动被动:to be doneinfinitive:进行时“be doing”123主动主动:to be doing infinitive:完成时“have done”主动主动:to have done被动被动:to have been done 高中英语 选择性必修第三册 UNIT 2 HEALTHY LIFESTYLETo do Be的单数形式单数形式Infinitive a
5、s the subject of the sentence:不定式作主语不定式作主语Example 1:To help others is our duty.主语主语系动词系动词:表语表语Example 2:To get good grades requires a lot of hard work.To do 主语主语谓语动词谓语动词单数形式宾语宾语Part 1高中英语 选择性必修第三册 UNIT 2 HEALTHY LIFESTYLEInfinitive as the real subject of the sentence:_(help)others is our duty.To hel
6、pIt is our duty to help others.形式主语形式主语It系动词系动词Be 的的单数形式单数形式表语表语真正主语真正主语To doPart 2It(形式主语)to do（真正主语）高中英语 选择性必修第三册 UNIT 2 HEALTHY LIFESTYLEInfinitive as the real subject of the sentence:不定式作真正主语，不定式作真正主语，it 做形式主语的常见结构做形式主语的常见结构 It is+adj.+(for sb)to do 形容事物（修饰事物的形容词）（修饰事物的形容词）(adj:easy,difficult,co
7、mfortable,pleasant,light,heavy,dangerous，tiresome,interesting,fit)It is important for everyone to learn English well in our rapidly developing world.It is+adj.+(of sb)to do 形容人（修饰人品形容词）（修饰人品形容词）(adj:kind,good,nice,wise,unwise,clever,silly,stupid,foolish,careless,rude,polite,naughty)It is nice of you
8、 to give me such advice.Part 2高中英语 选择性必修第三册 UNIT 2 HEALTHY LIFESTYLE It is+n.+to do sth.(an honour,our duty,a pity,a shame)It is an honour to be invited to contribute to your magazine.It takes/took sb some time to do sth.It takes me quite a long time to understand the meaning of the painting.Part 2高
9、中英语 选择性必修第三册 UNIT 2 HEALTHY LIFESTYLE单个不定式作主语，谓语动词单个不定式作主语，谓语动词_第三人称单数第三人称单数不定式作主语时不定式作主语时,可以用可以用it作作_形式主语形式主语如果要说明不定式表示的动作是谁做的，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可以在不定式前加一个由 for/of 引起的短语引起的短语,构成构成_不定式的复合结构不定式的复合结构It is+adj.+for sb to do（修饰事物的形容词）（修饰事物的形容词）(adj.:easy,difficult,comfortable,pleasant,light,d
10、angerous，tiresome,interesting,heavy,fit)Summary高中英语 选择性必修第三册 UNIT 2 HEALTHY LIFESTYLELook at the following sentences and pay attention to the italicised infinitives.Find more infinitives in the reading passage.In pairs,discuss their meanings and functions.1 To change bad habits is never easy.2 It to
11、ok the surgeon three hours to finish my mothers lung surgery.3 To join the Peoples Liberation Army,it is required for men to shave off their beards.4 It was not polite to disturb your neighbours with loud music last night.Activity 1More infinitives in the reading passage：.it can be easy for some of
12、them to form bad habits.After all，it is not easy to 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。高中英语 选择性必修第三册 UNIT 2 HEALTHY LIFESTYLEIt is important to avoid passive cigarette smoking.important/avoid/passive cigarette smokinguseful/turn to/fitness consultant/for
13、 advice It will take an hour for a nutrition specialist to make a balanced diet menu for you.will take/nutrition specialist/a balanced diet menu/make/an hour/for you.It is useful to turn to a fitness consultant for advice.illegal/dangerous/take/drugsIt is dangerous to take illegal drugs.harmful/skip
14、 breakfast/often It is harmful to skip breakfast（too）often.Join the words to make full sentences using the infinitive.Activity 2高中英语 选择性必修第三册 UNIT 2 HEALTHY LIFESTYLEActivity 2Join the sentences to make a paragraph.You can add your own sentences if necessary to make your paragraph more meaningful.To
15、 get healthy and get rid of bad habits，sometimes it is also a good idea to get professional help.It will take an hour for a nutrition specialist to make a balanced diet menu for you.It is also useful to turn to a fitness consultant for advice.You can also help yourself with some common sense.For exa
16、mple，it is harmful to skip breakfast too often.It is important to avoid passive cigarette smoking.And，of course，it is dangerous to take illegal drugs too.高中英语 选择性必修第三册 UNIT 2 HEALTHY LIFESTYLEComplete the conversations with the correct forms of the phrases in the box.1.A:Hello,doctor.I want to lose
17、weight,but I just can t seem to do it.What can you do to help me?B:Well，first,its necessary to _what you eat.Cut out all fatty food and sugary drinks,and eat more fruit and vegetables.2.A:I really need to _ a way to exercise more.I could use a fitness app,but my phones full.B：So delete a few files.I
18、m sure the app doesnt take up much space.3.A:Before exercising,always do a few warm-ups to _.B:I know.But then I always feel too tired to continue!4.A:ShouId I go for the pizza or the fried chicken?I hate _like these.You know whatlm going to eat both!B:Wow!Dont eat too much junk foodyoull get fat.Iv
19、e actually _ to go on a diet,so Ill just stick to the fruit salad.be in control of begin with be in control of make a choice decide on make up ones mind Activity 3decide onbegin withmaking choicesmade up my mind高中英语 选择性必修第三册 UNIT 2 HEALTHY LIFESTYLEActivity 41 A:Im thinking about riding a motorbike
20、to school.What do you think?B:Oh?Well,I think its necessary _ first.2 A:How come you fainted suddenly yesterday?Didnt you eat anything in the morning?B:Im on a diet.A:Thats so bad!You know its important _ every morning.3 A:I often see you around Central Park.B:Yes,I like _ there every weekend.We usu
21、ally play ball games.4 A:I hear that the new headmaster has too many things to do.B:Yes.It will be a big challenge for him_.A group of students are chatting after class.Complete the conversations with the correct forms of the phrases in the box.eat a good breakfast get your parents permission hang o
22、ut with friends balance work and personal life to get your parents permission to eat a good breakfasthanging out with friendsto balance（his）work and personal life(WORKBOOK P69 EX.1)高中英语 选择性必修第三册 UNIT 2 HEALTHY LIFESTYLEActivity 5These days,the attitude of many people is to just eat food that they th
23、ink tastes good.However,this can lead to an unbalanced diet,which often results in short-term and long-term health issues.If you want to stay healthy,then you need a balanced diet.Needless to say,it is not always easy to plan such a diet,but the good thing is that there is a lot of advice out there.
24、To save yourself some time,you could try looking at a food pyramid“a chart that shows you how much of each type of food to eat.You could also make healthy food at home and try to avoid eating packaged foods or fast food.It is essential for you to eat healthy food.You will feel better,have more energ
25、y,and have fewer health problems in later life.As the subject:_ As the object:_As the predicative:_ As the attribute:_As the adverbial:_Number all the infinitives in the passage.Then put the numbers into the different categories.1_ 2_ 3_ 4_ 5_ 6_ 7_ 3,7 2,6 1 5 4(WORKBOOK P69 EX.2)高中英语 选择性必修第三册 UNIT
26、 2 HEALTHY LIFESTYLEIt will take us about half an hour_（到达）the West Lake.In the morning,we will visit the places of interest around or near the West Lake,including the lake,Gu Hill,Lingyin Temple,and Lei Feng Pagoda.This will be a good chance_（欣赏）the beautiful scenery as well as the history and cult
27、ure of Hangzhou.In the afternoon we may_（尝试）a taste of Longjing Tea and _（看电影）.For the evening,there are many things we can choose from,like dinner,shopping,and experiencing the local night life.It will be fun for us_（选择）together what we want to do after you arrive.Activity 4A holiday is a perfect t
28、ime to relax.You are planning a trip to Hangzhou for your American friend.Complete the paragraph about your plan.to reach/get toto appreciatehavesee a movieto choose(WORKBOOK P69 EX.3)高中英语 选择性必修第三册 UNIT 2 HEALTHY LIFESTYLE1.Recite new words and phrases.2.Write an article about your lifestyle using t
29、o do as subject.Grammar高中英语 选择性必修第三册 UNIT 2 HEALTHY LIFESTYLE动词不定式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 not right for people with the virus to go to 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。To get enough protein each day is beneficial to our
30、 health.每天摄取足够的蛋白质对我们的健康有益。单元语法附：单元语法精讲精练附：单元语法精讲精练高中英语 选择性必修第三册 UNIT 2 HEALTHY LIFESTYLE（3）常用句型：It is+adj.+for/of sb.+to do sth.形容词表示事物或行为的特点或性质，介词用for，如good，easy，difficult，possible，necessary。形容词表示人的品格或特点，介词用of，如kind，polite，impolite，rude，foolish。It is necessary for us to prevent the war breaking ou
31、t.我们有必要防止战争爆发。词汇复现 It is too impolite of you to speak to an outstanding teacher like this.你这样对一位杰出的老师说话太无礼了。词汇复现 It+be+名词+to do sth.做某事是 Its my duty to take good care of my younger sister.照顾好我的妹妹是我的责任。It must be great fun to fly to the moon in a spaceship.乘宇宙飞船飞往月球一定很有趣。It takes sb.some time to do s
32、th.做某事花费某人多长时间It took me more than an hour to do my homework yesterday evening.昨天晚上我做作业用了一个多小时。高中英语 选择性必修第三册 UNIT 2 HEALTHY LIFESTYLE单句语法填空单句语法填空（1）Sometimes its better （remain）silent.（2）Although is a hard task to protect our environment，we cant help but go ahead.（3）（control）the air pollution is nec
33、essary.（4）It was foolish him to endanger his life in that way.（5）Dont you think it is rude him to ask a lady her age?（6）It is difficult him to live on such a small salary.to remain it To control/Controlling of of for 高中英语 选择性必修第三册 UNIT 2 HEALTHY LIFESTYLE完成句子完成句子（7）I dont think （你问是不礼貌的）how long the
34、 interview will last.（8）（保卫 是我们的职责）the country against its enemies.（9）（花了我半个小时）to wash the clothes.it is impolite of you to ask Its our duty to defend It took me half an hour 高中英语 选择性必修第三册 UNIT 2 HEALTHY LIFESTYLE2 疑问词+不定式（1）可用于该结构的疑问词疑问代词：疑问代词：who，whom，what，which 疑问副词：疑问副词：when，where，how（2）常接该结构的动词
35、：know，see，decide，tell，ask，consider，explain，learn，wonder（3）该结构的句法功能：主语、宾语和表语How to construct the theoretical framework is very important.怎样构建理论框架很重要。（作主语）词汇复现 The question is when to start developing such a vaccine.问题是何时开始研制这种疫苗。（作表语）词汇复现 I know where to find that patriotic young man.我知道到哪里去找那个爱国的年轻人
36、。（作宾语）词汇复现【学法点拨学法点拨】“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 whose proof to believe.=A judge must decide whose proof he/she should believe.法官必须决定相信谁的证据。词汇复现 高中英语 选择性必修第三册 UNIT 2 HEALTHY LIFESTYLE单句语法填空单句语法填空（1）I couldnt decide bike to buy.（2）Twenty students want to attend the class that aims
37、 to teach how （read）fast.（3）When and where （vote）hasnt been decided.完成句子完成句子（4）（何时装修）the house hasnt been decided.（5）They didnt decide （在哪里举行）the debate.（6）The question is （怎样拆卸）the machine.which to read to vote When to decorate where to hold how to take apart 高中英语 选择性必修第三册 UNIT 2 HEALTHY LIFESTYLE3
38、 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。To tell the truth，I dont like the gifted actress in the movie.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 to sum up 总而言之 to be brief 简言之to tell the truth 说实话 to be exact 确切地说to conclude 总而言之，最后to be frank 坦白地说to begin/start with 首先to be honest 说老实话
39、To be frank，your theory is too abstract for the students to understand.坦白说，你的理论太抽象，学生们理解不了。词汇复现 高中英语 选择性必修第三册 UNIT 2 HEALTHY LIFESTYLE完成句子完成句子（1）（总而言之），most of the committee members supported the idea but a few were against it.（2）（简言之），he was happy with the result.（3）She wrote，（确切地说），ten novels in h
40、er lifetime.（4）（首先），hes too young for that kind of job.（5）（说老实话），I dont really want to go to the party tonight.To sum up/To conclude To be brief to be exact To begin/start with To be honest Language points高中英语 选择性必修第三册 UNIT 2 HEALTHY LIFESTYLE教材原句p.17To join the Peoples Liberation Army，it is require
41、d for men to shave off 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 off 剃掉；刮去 搭配搭配shave ones 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 doctor had to shave off his beard to 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 doesnt shave ever
42、y morning.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。题组练领悟方法核心词汇高中英语 选择性必修第三册 UNIT 2 HEALTHY LIFESTYLE完成句子完成句子（1）In order to be accepted by his girlfriend，Charles decided （刮掉胡子）.（2）He didnt like the barber （给他剃头）with an electric tool.（3）Though out of shape，the old man （给自己刮脸）once a week
43、.to shave off his beard to shave his head gives himself a shave 高中英语 选择性必修第三册 UNIT 2 HEALTHY LIFESTYLE教材原句p.17It was not polite to disturb your neighbours with loud 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 you get up early，try not to disturb your fellows.如果你起得早，尽量不要打扰你的同伴。词汇复现
44、Dont disturb the papers about membership on my desk.别弄乱我桌上有关会员资格的文件。词汇复现 The loud scream panicked and disturbed me.高声的尖叫使我惊恐不安。词汇复现【单词积累单词积累】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 of them.他们都对这个令人不安的消息深感不安；也就是说，这
45、个消息使他们都感到不安。高中英语 选择性必修第三册 UNIT 2 HEALTHY LIFESTYLE【词语辨析词语辨析】disturb，bother 与 interrupt（1）disturb 侧重扰乱某种状态或秩序。（2）bother 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。Production at the factory was interrupted for two hours because there was no electricity.由于没有电，工厂的生产中断了两个小时。高中英语 选择性必修第三册 UNIT 2
46、 HEALTHY LIFESTYLE单句语法填空单句语法填空（1）It is （disturb）to think a dangerous wild animal is still in the quiet countryside.（2）Im sorry （disturb）you so late，but my cars broken down and I dont have my phone with me.完成句子完成句子（3）词汇复现He dreamed a terrible dream，which was so vivid that it had _ （使他不安）for days.（4）E
47、veryone was bored to death with his （令人不安的话语）.选词填空（选词填空（disturb/bother/interrupt）（5）I didnt want to him with my trifle（琐事）.（6）The player tried to speak，but the referee him.（7）The boy apparently the class.disturbing to disturb disturbed him disturbing words botherinterrupted disturbed 高中英语 选择性必修第三册 U
48、NIT 2 HEALTHY LIFESTYLE教材原句p.17It is harmful to skip breakfast often.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 school/class 逃学/逃课 skip over the fence跳过栅栏 skip over the last part of the book 略过书中最后一部分 The criminal whose angle was injured skipped the
49、 scene before the police 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 along beside me在我身边开心地蹦蹦跳跳 高中英语 选择性必修第三册 UNIT 2 HEALTHY LIFESTYLE单句语法填空单句语法填空（1）When he was young，he often （skip）breakfast.（2）They saw the man with a little girl （skip）along behind him.完成句子完成句子（3）（翘课）is of no benefit to students.（4）The girls were （跳绳）in the playground.skippedskipping Skipping class skipping（rope）THE END
