高中英语人教版（2019）选择性必修 第三册 Unit 2 Healthy Lifestyle Learning About Language课件（共34张）

(共34张PPT)
Unit 2
Learning About Language
Teaching Objectives:
1. Get the general idea, organization, and style of the article.
2. Read carefully to refine and summarize the artistic
style and characteristics of western painting in different
periods.
3. Explore the important factors that promote and
influence the development and change of western
painting art.
Key and difficult points:
Key point：Study the characteristics of the paintings and the representatives in the four periods of western history.
Difficult point：Learn the way to appreciate paintings and lead students to describe the characteristics of the painting works they like.
Part 1 Build up your vocabulary
Teenagers often have bad habits. Most can be stopped by taking ________ action. However, habits like _______________ and _____________ abuse can lead to serious addictions. 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.
appropriate
Complete the summary using the words from the box below.
alcohol/tobacco
tobacco/alcohol
psychology
cycle
cue
negative
If successful, we will feel a sense of ___________ and our bad habit may disappear. 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!
Complete the summary using the words from the box below.
reward
discipline
pill
Find “verb + a habit” collocations from the previous text. Then make sentences with them.
We often form a habit without realising it.
The expert gave us some tips on how to change bad habits.
prevent a habit
recognise a habit
examine a habit
break a habit
Of course, it is better to prevent a bad habit than break one!
To recognise a bad habit is the first step.
By examining our habits closely, we can start to understand them.
Be disciplined and don't give up trying to break your bad habit!
Complete the passage using the correct forms of the words in the box. Add more sentences or paragraphs to the passage if possible.
dominates
examine
relies on
facilitate
Vocabulary
skip
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
vt. 不做(本来常做或应做的事);不参加;悄悄溜走
练习：Apparently, it is not right _________ (skip) class. You'd better not do that.
skipped
Vocabulary
make up one's mind
keep/bear…in mind 把······记在心里
keep/bear in mind+that从句 记住……
change one's mind 改变某人的主意
have sb./sth. in mind 心中有合适的人选/想做的事
come into/to one's mind 掠过/进入某人的脑海
bring/call...to mind 使想起
put sb.in mind of... 使某人想起……
下定决心
练习：You must keep ______ mind that one's competence is of great importance.
in
Part 2 Infinitives as the predicative
Look at the following sentences and pay attention to the italicised infinitives. Discuss their meanings and functions.
To change bad habits is never easy.
It took the surgeon three hours to finish my mother's lung surgery.
To join the People's Liberation Army, it is required for men to shave off their beards.
It was not polite to disturb your neighbours with loud music last night.
作主语
真正主语
形式主语
形式主语
真正主语
真正主语
形式主语
Join the words to make full sentences using the infinitive and then Join the sentences to make a paragraph. You can add your own sentences if necessary to make your paragraph more meaningful.
important/avoid/passive cigarette smoking
will take/nutrition specialist/a balanced diet menu/make /an hour/for you.
It is important to avoid passive cigarette smoking.
It will take a nutrition specialist an hour to make a balanced diet menu for you.
useful/turn to/fitness consultant/for advice
illegal /dangerous/take /drugs
It is useful to turn to a fitness consultant for advice.
It is illegal and dangerous to take drugs.
harmful /often /skip /breakfast
It is harmful to often skip breakfast.
It作为形式主语当作主语的不定式结构比较复杂时，常常用it作形式主语，而把真正的主语置于句子的后面。
It is +adj.+(for sb) to do 此处形容词修饰事物，表示事物的特征
如：easy ,difficult, comfortable, pleasant, dangerous，tiresome, interesting , fit
It is very necessary to finish the project before the New Year.
It作为形式主语当作主语的不定式结构比较复杂时，常常用it作形式主语，而把真正的主语置于句子的后面。
It is +adj.+(of sb) to do 此处形容词修饰人，指人的性质、特征或品质等
如: kind, good, nice, silly, stupid, foolish, wise, unwise, clever, careless, rude, polite, naughty
It is nice of you to come and meet me at the airport.
1. Sometimes it’s better 　　　　 　(stay) calm when in trouble.
2. It was foolish 　　　　her to make such a mistake.
3. It is rude 　　　 　 him to say that to a lady.
4. It is difficult 　　　　teenagers to live alone in a
foreign country.
Practice
to stay
of
of
for
Practice
5.你真是粗心，把钥匙忘在家里。
__________________________________ your keys at home.
6.他冒那样的危险真是太愚蠢了。
____________________________________ such risks.
7. 妈妈担心自己孩子的健康是很自然的。
__________________________________________________________ her own children’s health.
It’s careless of you to leave
It’s foolish of him to take
It’s natural for a mother to be concern about
It is +adj.+ for sb. to do sth.
It is +adj.+ of sb. to do sth.
It is +adj.+ for sb. to do sth.
sb.是to do sth.的逻辑主语
常用于表示事物的特征，用于此句型的形容词有：
easy, hard, difficult, possible, important, impossible, necessary, good, bad, exciting, interesting, surprising等。
It is necessary for young students to learn a foreign language.
对年轻的学生来说，学习一门外语是必要的。
It is +adj.+ of sb. to do 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
常见的此类形容词有：
kind, nice, wise, silly, polite, impolite, friendly, foolish, clever等。
It was silly of you to give up such a good chance！
你放弃这么好的一个机会，真傻!
It is + n. + (for sb.) to do sth.
常见的名词有：
pity, shame, pleasure, one’s duty, one’s job, fun, joy, good manners, bad manners等。
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。
What a pity it is for you to have missed such a wonderful film.
真遗憾你错过了这样一个精彩的电影。
It is wrong for you _________ (skip) breakfast.
Although _________ is a hard task to protect our environment, we can't help but go ahead.
I don't think __________________________________ (你问……是不礼貌的) how long the interview will last.
____________________________ (保卫……是我们的职责) the country against its enemies.
Practice
to skip
it
it is impolite of you to ask
It's our duty to defend
不定式作主语
V-ing作主语
不定式作主语表示一次性的、具体的、将来的或未做的动作；
动名词作主语表示一般的、抽象的、泛指的或者已经完成的动作。
______________ (finish) the task in time is a great challenge.
______________(walk) after dinner is good to health.
--What has made Janny so upset
--____________ (lose) two tickets to the cinema.
__________ (get) to the park by bike will take about 20 minutes.
To finish
Walking
Losing
To get
疑问词 + 不定式
“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。
常接该结构的动词：know, see, decide, tell, ask, consider, explain, learn, wonder
I don't know how to handle the crisis.
我不知道如何处理这一危机。
疑问词 + 不定式
可用于该结构的疑问词
疑问代词:who, whom, what, which
疑问副词:when, where, how
The question is when to start developing such a vaccine.
问题是何时开始研制这种疫苗。
该结构的句法功能：主语、宾语和表语
I couldn't decide ___________ bike to buy.
Twenty students want to attend the class that aims to teach how ___________ (read) fast.
When and where ___________ (celebrate) his success hasn’t been decided.
___________________ (何时装修) the house hasn't been decided.
Practice
which
to read
to vote
When to decorate
不定式短语作独立成分
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 sum up 总而言之
to tell the truth 说实话
to conclude 总而言之
to begin/start with 首先
to be brief 简言之
to be exact 确切地说
to be frank 坦白地说
to be honest 说老实话
（1）当动词所表达的是某一特定的行为，尤其是将来的行为或
有待于实现的行为时，通常用动词不定式(短语)作表语。
Her best wish is to put her new ideas into practice.
她最大的愿望是将自己的新想法付诸实践。
（2）若动词所表达的并不强调动作，而是表示主语的内容，则
通常用v-ing(短语)作表语。
My favorite sport is swimming. 我最喜欢的运动是游泳。
What I hate most is being laughed at.
我最痛恨的就是被嘲笑。
Part 3 Practice
语法填空
1. I've had many dreams since I was a child. Now my dream is ___________(open) a café.
2. In 1963 the UN set up the World Food Programme, one of whose purposes is ___________(relieve) worldwide starvation.
to open
3. At college, Barack Obama didn't know that he was ___________(become) the first black president of the United States of America.
to relieve
4. Perhaps one of the most important things you can do as a good neighbor is ___________(keep) your property(房产) neat, clean, and in good repair.
to become
to keep
完成句子
1. 当我13岁的时候，我唯一的目标是成为我们足球队的明星。
When I was 13 my only purpose was __________________________.
2. 这些书不应该被卖掉，最好把它们捐给学校。
These books ____________________; it's better to donate them to a school.
3. 据说他们下星期要去参加一个重要的学术会议。
It's said that ______________________________________________________
______________________________________.
4. 别担心，你需要做的就是好好睡上一觉。
Don't worry. What you need to do ______________________________.
to become the star on our football team
are not to be sold
they are to attend an important academic
conference next week
is (to) have a good sleep
完成句子
5. 每天早晨我所做的第一件事就是进行锻炼。
The first thing I do every morning __________________________.
6.他想做的最有意义的事情就是帮助穷人。
The most meaningful thing he wants to do __________________
_____________.
7. 今年，她的计划是要对教学方法进行一些变革。
This year, her plan ____________________________________
_________________________.
8. 我建议马上开始工作。
What I suggest ______________________________ at once.
is (to) take exercise
is (to) help
the poor
is to start work
is to make some changes in
the teaching method
SEE YOU NEXT TIME