1、人教版（人教版（2019）选择性必修三）选择性必修三Unit 2 Healthy LifestyleLearning About LanguageBuild up your vocabularyLearning objectivesBy the end of this section,you will be able to:1.discover the meaning of words and examine how they are used in context;2.understand and practise collocation formation and usage;3.unde
2、rstand and practise words in context.Complete the summary using the words from the box below.alcohol appropriate cue cycle negativepill psychology reward tobacco disciplineTeenagers often have bad habits.Most can be stopped by taking _ action.However,habits like _ and _ abuse can lead to serious add
3、ictions.According to modern _,to change bad habits,we must first analyse them using the“habit _”.To fix or improve a bad habit,we must first find out what the _ is.Then we must change the old _ routine to something more positive.If successful,we will feel a sense of _ and our bad habit may disappear
4、.Changing a bad habit is difficult and it is easy to make excuses and give up.We need to make up our minds and show some _,and make small changes over time.There is no magic _ to help us,but changing will ensure we have a happy and healthy life!appropriatetobacco/alcoholalcohol/tobaccopsychologycycl
5、ecuenegativerewardpilldisciplineFind“verb+a habit”collocations from the previous text.Then make sentences with them.form a habit _change a habit _ _ _ _ _It is good to form a habit of reading an English article every day.I would like to change my habit of eating too much junk food.To prevent such a
6、harmful habit is essential.prevent a habitrecognise a habitcreate a habitbreak a habitIf we dont recognise a bad habit early,it will do harm to us.How to create a good habit is worthy of our consideration.Im trying to break the habit of staying up too late.Complete the passage using the correct form
7、s of the words in the box.Add more sentences or paragraphs to the passage if possible.Simply speaking,a healthy lifestyle is about finding the right balance and making good choices.Life is composed of many elements,such as family,friends,study,work,entertainment,and so on.If one element _ your life
8、and the others are ignored,you will lose balance and not feel good.Carefully _ your daily activities.Your health _ what you choose to do in your daily life.A healthy lifestyle is generally a balanced life in which you make wise choices.Neither too much nor too little is good.Slowly _ changes in your
9、 lifestyle by using a step-by-step process.You do not have to change everything at once.Make small changes each day and your lifestyle will become healthier.examine dominate facilitate rely ondominatesexaminerelies onfacilitateDiscover useful structuresLearning objectivesBy the end of this section,y
10、ou will be able to:1.grasp the usage of the infinitive as the subject;2.practise the usage of the infinitive as the subject through doing some exercises;3.review the usage of the infinitives as the object,the predicative,the attribute and the adverbial.Look at the following sentences and pay attenti
11、on 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 took the surgeon three hours to finish my mothers lung surgery.3.To join the Peoples Liberation Army,it is required for men to shave o
12、ff their beards.4.It was not polite to disturb your neighbours with loud music last night.subjectMore sentences from the reading passage:However,during this period,it can be easy for some of them to form bad habits.To prevent harmful habits like these from dominating a teenagers life is essential.Af
13、ter all,it is not easy to break bad habits.【用法】【用法】动词不定式（短语）作主语时，一般表示具体的、个别的、一次性的或具有将来意味的动作。若动词不定式（短语）太长，常用it作形式主语而将不定式后置。【注意】【注意】当动词不定式（短语）作主语的句子中又有一个动词不定式（短语）作表语时，不能用it作形式主语。如：To see is to believe.眼见为实。（不可改为It is to believe to see.）动词不定式（短语）作主语单个动词不定式（短语）作主语，谓语用单数。单个动词不定式（短语）作主语，谓语用单数。To improve E
14、nglish is the most urgent thing for me now.两个或两个以上的动词不定式（短语）作主语，若语义一致或基本两个或两个以上的动词不定式（短语）作主语，若语义一致或基本一致，或动词不定式（短语）作为一个整体，谓语用单数。一致，或动词不定式（短语）作为一个整体，谓语用单数。To love and to be loved is sweet to us.两个或两个以上的动词不定式（短语）作主语，若语义不一致，谓两个或两个以上的动词不定式（短语）作主语，若语义不一致，谓语用复数。语用复数。To improve peoples lives and to speed up
15、 social construction are two important tasks.动词不定式（短语）作主语考点1：动词不定式（短语）作主语的主谓一致原则 It is+形容词（形容词（+for sb.）+to do sth.It is easy for me to learn how to drive.It is+形容词（形容词（+of sb.）+to do sth.It is clever of him to leave that company.It is+名词（名词（a pleasure/a pity/an honor.）+to do sth.Its our duty to tak
16、e care of the old.It takes/took sb.+some time+to do sth.It takes me an hour to do homework every day.动词不定式（短语）作主语考点2：it作形式主语的常见句型 动词不定式（短语）和动名词（短语）都可在句中作主语，动词不定式（短语）作主语时，在很多情况下都可用动名词（短语）替代。但是，如果作主语的动词不定式（短语）是固定说法，或表示较强烈的对比，或表示具体的、特定的情况等，通常不用动名词（短语）替代。如：To err is human,and nobody likes a perfect pers
17、on.（不说Erring is human.)是人都会犯错，而且谁也不喜欢完人。To finish this job in one day is impossible.（某次具体情况）在一天之内完成这项工作是不可能的。动词不定式（短语）作主语动词不定式（短语）和动名词（短语）作主语的区别P r a c t i c eJoin the words to make full sentences,and then join the sentences to make a paragraph.You can add your own sentences if necessary to make you
18、r paragraph more meaningful.1.important/avoid/passive cigarette smoking It is important to avoid passive cigarette smoking.2.will take/nutrition specialist/a balanced diet menu/make/an hour/for you3.useful/turn to/fitness consultant/for advice4.illegal/dangerous/take/drugs5.harmful/skip breakfast/of
19、ten It will take an hour for a nutrition specialist to make a balanced diet menu for you.It is useful to turn to a fitness consultant for advice.It is dangerous to take illegal drugs.It is harmful to skip breakfast often.To get healthy and get rid of bad habits,sometimes it is also a good idea to ge
20、t 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 example,it is harmful to skip breakfast too often.It is important to avoid passi
21、ve cigarette smoking.And,of course,it is dangerous to take illegal drugs too.Workbook1.A:Im thinking about riding a motorbike 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 s
22、o bad!You know its important _ every morning.3.A:I often see you around Central Park.B:Yes,I like _ there every weekend.We usually 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 _.to get your parents permission A group of student
23、s are chatting after class.Complete the conversations with the correct forms of the phrases in the box.eat a good breakfast get your parents permissionhang out with friends balance work and personal lifeto eat a good breakfast hanging out with friends to balance(his)work and personal life These days
24、,the attitude of many people is to just eat food that they think 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,b
25、ut the good thing is that there is a lot of advice out there.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
26、 you to eat healthy food.You will feel better,have more energy,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.Workbook
27、12345673,7 2,6 1 5 4 It 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 c
28、ulture 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.to reach/get toto appreciateh
29、avesee a movieto chooseA holiday is a perfect time to relax.You are planning a trip to Hangzhoufor your American friend.Complete the paragraph about your plan.WorkbookComplete the conversations with the correct forms of the phrases in the box.1.A:Hello,doctor.I want to lose weight,but I just cant se
30、em 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.Im sure the app doesnt tak
31、e 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:Should I go for the pizza or the fried chicken?I hate _ like these.You know what Im going to eat both!B:Wow!Dont eat too much junk food youll get fat.Ive actually _ to go on
32、a diet,so Ill just stick to the fruit salad.be in control of decide on begin with making choices made up my mindbegin with be in control of make a choice decide on make up ones mindWords and Expressions We need to make up our minds and.(P16)我们要下定决心make up ones mind 下定决心下定决心make up 编造；化妆；和好；组成make up
33、 for 弥补，补偿 Hurry up and make up your mind.抓紧时间做决定。Did you make up your mind about what youre going to do?你决定要做什么了吗?1 Life is composed of many elements,such as family,friends,study,work,entertainment,and so on.(P16)生活由许多元素组成，如家庭、朋友、学习、工作、娱乐等。compose /kmpz/vt.&vi.组成；作曲；撰写组成；作曲；撰写be composed of 由由组成（或构
34、成）的组成（或构成）的compose a song 写歌 compose music 作曲compose oneself （生气、烦躁或激动后）极力使自己平静下来 composer adj.作曲家 composition n.统治，控制；组成，构成；作品；创作，作曲；作文 Ten men compose the committee.委员会由十人组成。All living things are composed of cells.所有生物都由细胞组成。2 To join the Peoples Liberation Army,it is required for men to shave off
35、 their beards.(P17)要加入人民解放军，男子必须剃掉胡须。shave /ev/vi.,vt.&n.剃（须发）；刮脸剃（须发）；刮脸shave off 剃掉；刮去剃掉；刮去shave ones beard 剃胡须 shave ones face 刮脸 Hes grown a beard to save shaving.他留起了胡子，省得再刮脸。Do you want me to shave off your moustache?您要不要我把您的胡子剃掉？3 It was not polite to disturb your neighbours with loud music l
36、ast night.(P17)昨晚用大声的音乐打扰邻居是不礼貌的。disturb /dstb/vt.打扰；搅乱；使烦恼打扰；搅乱；使烦恼disturbing adj.令人不安的，使人震惊的disturbed adj.不安的，心烦意乱的disturbance n.打扰，干扰；骚乱，骚动；情绪困扰，精神失常 I didnt like to disturb you.我本不愿打扰你。The letter shocked and disturbed me.这封信使我感到震惊和不安。4 nutrition specialist(P17)营养专家specialist /spelst/n.专科医生；专家专科医
37、生；专家 a specialist in.方面的专家specialise vi.专门研究，专门从事，专攻specialised adj.专门的，专用的 I made an appointment to see a specialist.我约好去见一位专家。5 skip breakfast(P17)不吃早餐skip /skp/vt.跳过；不参加；悄悄溜走跳过；不参加；悄悄溜走 vi.蹦蹦跳跳地走；跳绳蹦蹦跳跳地走；跳绳 n.蹦跳蹦跳skip a grade 跳级 skip school/class 逃学/逃课skip over 跳过 go skipping 去跳绳 I suggest we skip to the last item on the agenda.我建议我们跳到议程的最后一项。She skipped happily along beside me.她连蹦带跳，高高兴兴地跟着我走。6 Review the grammar learned this class.Review the words and expressions learned so far in this unit.
