(共44张PPT)
Period 4
UNIT 2 HEALTHY LIFESTYLE
主题语境
人与自我——健康的生活方式
课时学案 单元语法讲练(Learning About Language)
change one's mind 改变某人的主意
bear/keep...in mind 牢记……
have...in mind 考虑；打算
keep/fix one's mind on/upon 将注意力集中于……
come to/into one's mind 某人忽然想起
read one's mind 看出某人的心思
1．make up one's mind 下定决心
[即学即练]——单句语法填空/完成句子
①Peter changed ____ (he) mind after a phone call at the last minute．
②With his mind ______ (fix) on the things not related to his studies, his marks have fallen rapidly．
③我上初中的时候，英语不是很好。我下定决心学好它，并制订了详细的计划。
When I was in junior high，my English was not so good．I __________
__________________ and made a detailed plan．
his
fixed
made up my
mind to learn it well
[名师点津] make up one's mind中的名词mind有单复数的变化，根据one's的单复数来确定mind的单复数。
(1)compose vt．& vi． 组成；作曲；撰写
(2)composition n． 作文；作曲；作品；成分
(3)composer n． 作曲家；创作者
2．be composed of 由……组成(或构成)的
[名师点津] 意为“由……组成(或构成)的”的短语还有：consist of，be made up of等。
[即学即练]——单句语法填空/一句多译
①Mozart _________(compose) his last opera shortly before he died．
②We had to write a ___________ (compose) on the subject “My Pet”．
③这次展览由三个部分组成，吸引了世界各地的人们。
a．The exhibition，(which is)____________ three parts，attracts people from all over the world．(compose)
composed
composition
composed of
b．The exhibition，(which is)___________ three parts，attracts people from all over the world．(make up)
c．The exhibition，___________________________ three parts，attracts people from all over the world．(consist)
made up of
which consists of/consisting of
动词不定式作主语
动词不定式作主语通常表示具体的、一次性的或者具有将来含义的动作。单个动词不定式作主语时，句子的谓语动词用单数形式；两个及以上动词不定式作主语时，句子的谓语动词用复数形式。常见的动词不定式作主语的情况主要有三种：
一、动词不定式直接作主语
动词不定式具有名词的特征，可在句中充当主语。
To know something about English is one thing；to know English is quite another．
懂一点英语是一回事；掌握英语完全是另一回事。
To get enough protein each day is beneficial to our health．
每天摄取足够的蛋白质对我们的健康有益。
[名师点津] 动词不定式和动词-ing形式作主语的区别
(1)动词不定式：表示具体的某次动作，特别是将来的动作。
To teach you the uses of the infinitive is my job today．(表示具体的某次动作)
教你们不定式的用法是我今天的工作。
(2)动词-ing形式：表示比较抽象的、经常性的、一般性动作。
Walking is a good form of exercise for both the young and the old．(表示一般性动作)
散步是一种老少皆宜的很好的运动方式。
[即时训练1] 单句语法填空
①________ (look) after the safety of the community is his responsibility．
②________ (smoke) is prohibited here．
③___________ (improve) people's lives and _________ (speed) up socialist construction are two important tasks today．
④__________ (finish) reading the book will take you two hours．
To look
Smoking
To improve
to speed
To finish
二、it作形式主语，动词不定式作真正主语的常用句型
1．It is＋adj．(＋for/of sb．)＋to do sth．
It is very easy for him to work out this math problem．
对他来说解出这道数学题很容易。
It is very kind of you to help us．
你帮助我们真是太善良了。
[名师点津] 上述句型中使用介词for或of的区别
(1)“for sb．”的句型常用来表示事物的特征，用于表示动作特征或客观情况的形容词，如easy，hard，difficult，interesting，impossible等。
It's difficult for us to finish writing the composition in a quarter of an hour．
在十五分钟内写完这个作文对我们来说太难了。
(2)“of sb．”的句型一般用来表示人物的性格、品质，用于表示心理品质或性格特征的形容词，如good，kind，nice，clever，foolish，right，considerate，stupid等，动作的逻辑主语和这些形容词可以构成主系表结构，因此这样的句式也可转化为“sb．＋be＋adj．＋动词不定式”。
It was careless of him to make such a mistake．
＝He was careless to make such a mistake．
犯了这样的错误，他太粗心了。
2．It is＋a/an/one's＋n．(pity/shame/pleasure/duty/honour/task/...)＋to do sth．
It's a hard task to change bad habits in a short time．
要在短时间内改掉坏习惯是一项艰巨的工作。
3．It takes/costs/requires/makes...sb．/sth． to do sth．
lt took me two hours to finish the work．
我完成那项工作花了两个小时。
[名师点津] 在It is＋no use/no good/useless/a waste of time...句型中常用动词-ing形式作真正的主语。
It is no use waiting here doing nothing．
无所事事地在这里等待是没有用的。
[即时训练2] 单句语法填空
①It is possible ________ (walk) or bike the entire 14 kilometers．
②It was a rewarding experience for us __________ (realize) how closely plants and humans are related．
③It is clever ___ him not to tell anybody about it．
④Designer Jennifer Anderson admits ___ took her a while to come around to the opinion that using nutria fur for her creations is morally acceptable．
to walk
to realize
of
it
三、“疑问词＋不定式”作主语
动词不定式也可与疑问词what，who，which，when，where，why，how或者连词whether等连用作主语，此时，句子的谓语同样采用单数形式。
Where to put the box seems hard to decide．
很难决定把这个箱子放在哪里。
Whether to do it hasn't been decided．
是否做这件事还没定下来。
[即时训练3] 单句语法填空/句型转换
①Where and when ________ (cast) a net is more important than how to cast a net．
②Whether to compete in the relay race ___ (be) a decision that has to be made by our teacher．
③How the work should be finished is still a question．
→_____________________ is still a question．(“疑问词＋不定式”)
to cast
is
How to finish the work
短文语境填空
Dear Tom，
It's so nice 1．________ (hear) that you want to come to Beijing 2．_________ (study)．It's necessary 3．__________ (remind) you of a few things．The streets of Beijing are very crowded, so it is best for you 4．_______ (take) a bus or subway．It is very convenient．You can also ride a bike, but when you do not use it, it's necessary 5．_______
to hear
to study
to remind
to take
to lock
(lock) it．Also, don't easily trust people who you don't know, in case you are cheated． Of course, you should believe that there are many kind people in the world．When you visit a friend's home, remember 6．_________ (bring) something your host likes．It seems selfish of a man not 7．________ (give) back anything． If you are in trouble, remember to call me in time, I will help you, because it is easy for me 8．______ (do) it．
Yours，
Li Hua
to bring
to give
to do
①dizzy adj．头晕目眩的
②flu n． 流感
get the flu 患流感
③stimulate vt．激发；促进；刺激
stimulate one's motivation 激发某人的动力
课下预习 第二篇课文(Using Language)
④dentist n．牙科医生
⑤make up one's mind to do sth．下定决心做某事
⑥sugary adj．含糖的；甜的
⑦nut n．坚果
⑧skateboard n．滑板vi． 滑滑板
⑨dynamic adj．充满活力的；精力充沛的；动态的
⑩virus n． 病毒；病毒性疾病
feel... about oneself 自我感觉……
within my own power 在我力所能及的范围内
stressed out 焦虑不安；心力交瘁
stress out (使)焦虑不安；心力交瘁
worn out 筋疲力尽的；疲惫的
quit v．离开；退出；停止
bowling n．保龄球运动
comedy n．喜剧；喜剧片；滑稽节目
monthly adv．& adj．每月；每月一次的n．月刊
enhance vt．提高；增强；增进
refresh vt．使恢复精力；使凉爽；刷新
try out 试验；尝试
Dear Editor，
After I attended your summer camp about health and lifestyle choices[1]，I realised I hardly ever felt well，either physically or mentally．I often felt sleepy and dizzy①，and lacked passion．Most worrying，though，I got the flu② easily and experienced many toothaches，too．
[1]“After I attended...choices”为after引导的时间状语从句。
At the end of the camp I heard，“Change the world by changing yourself．”This stimulated③ my motivation．A dentist④ once examined me and told me that too much sugar in my meals had damaged my teeth and health．I made up my mind to change⑤ two things in my life：to eat nothing with sugar and to exercise regularly．
After that I stopped buying all the sweets，biscuits，and sugary⑥ drinks that I used to have every day．Whenever I went out with friends[2]，I brought snacks from home，things that didn't have any added sugar：fruit，nuts⑦，dried meat，etc[3]．
[2]“Whenever I went out with friends”为whenever引导的时间状语从句，whenever意为“每当”。
[3]“that didn't have...etc”为that引导的定语从句，修饰先行词things。
My exercise was very simple：I went outside every day for at least 30 minutes and did something active．Sometimes I played table tennis or badminton with my cousins．Other times I jumped on my skateboard⑧ and rode around my neighbourhood，or just took a long walk．
The results have been fantastic．I feel more dynamic⑨ and stronger than ever，in both body and mind．I sleep soundly at night now．I no longer suffer from a flu virus⑩ or toothaches either．Best of all，in my opinion，is how I feel about myself ．[4]I feel like I'm in control of my own life．To make choices about myself[5] is within my own power ．I CAN change myself．I just need to try．
Yours truly，
Wang Lu
[4]“Best of all，in my opinion，is how I feel about myself．”是完全倒装结构，其基本构成为：表语(形容词)＋系动词＋主语。“how I feel about myself”为主语从句。
[5]“To make choices about myself”是动词不定式短语作主语，看作第三人称单数形式。
Dear Editor，
As I took part in the summer camp about personal life choices，I started to analyse my choices，especially what I did to relax and how it was affecting my whole life[6]．
[6]“what I did to relax and how it was affecting my whole life”为what和how引导的宾语从句。
After starting high school，I felt stressed out and always relaxed by playing computer games．I got so absorbed that I played the games day and night[7]．Playing was fun，but I felt even more worn out afterwards! So after the camp，I realised that it was very，very important to adjust my lifestyle[8]．I decided to take control of my life and find other ways to relax．
[7]“so absorbed that I played the games day and night”为so...that...句型，引导结果状语从句。
[8]that引导宾语从句，作动词realised的宾语，其中it作形式主语，动词不定式短语“to adjust my lifestyle”为真正的主语。
It was a big struggle not to join my friends in playing online games as I'm mad for them．However，I realised that to succeed in quitting ，I had to replace it with something else．So I thought about what to try．Rock climbing，bowling ，watching comedies ，and playing basketball were the things I thought of doing instead[9]．
[9]“I thought of doing instead”为省略了that或which的定语从句，修饰先行词the things。
Now my dad and I go rock climbing together monthly ！ It has enhanced the quality of my life，improving my health and increasing my happiness[10]．I get refreshed through climbing，spend more time with my dad，and get to meet new friends．
[10]“improving my health and increasing my happiness”为两个并列的动词-ing形式短语作伴随状语，与逻辑主语It之间为主动关系。
After six months of trying out new ways of relaxing，I feel much more energetic．I feel that I can change myself for the better．And if that's true for me，then it might truly be possible to change the world for the better．[11] As Gandhi said，“Be the change you want to see in the world．”
Sincerely，
George Fielding
[11]“if that's true for me”为条件状语从句；it是形式主语，动词不定式短语“to change the world for the better”为真正的主语。
亲爱的编辑：
在我参加了你们的关于健康和生活方式选择的夏令营之后，我意识到无论是在身体上还是在精神上我都未感觉健康过。我经常感到昏昏欲睡，头晕目眩，缺乏激情。不过，最让人担心的是，我很容易患流感，还经常牙疼。
在夏令营结束时，我听到(了这样的话)：“通过改变自己来改变世界。”这激发了我的动力。有一次，一位牙医给我检查了一下，告诉我说，我饮食中的糖分过多，已经损害了我的牙齿和健康。我下决心要改变生活中的两件事：不吃含糖食物和经常锻炼。
从那以后，我不再买以前每天吃的所有糖果、饼干和含糖饮料。每当我和朋友外出的时候，我都会从家里带一些零食，一些没有任何添加糖的东西：水果、坚果、肉干等。
我的锻炼很简单：每天至少出去30分钟并做一些积极的运动。有时我和我的堂兄弟们打乒乓球或羽毛球。其他时候，我跳上滑板，绕着小区滑滑板，或者只是走很长的路。
结果非常棒。我感到身体和精神都比以前更富活力，更加强健。我现在晚上睡得很香。我不再患流感，也不再受牙疼的折磨了。在我看来，最好的是我对自己的感觉。我觉得我能掌控自己的生活。我力所能及地作出关于自己的选择。我可以改变自己。我只是需要尝试。
敬启，
王璐
亲爱的编辑：
当我参加关于个人生活选择的夏令营时，我开始分析我的选择，特别是我为了放松自己所做的事，以及它是如何影响我的整个生活的。
上高中后，我感到焦虑不安，总是通过玩电脑游戏来放松。我十分着迷，没日没夜地玩游戏。玩是有趣的，但是过后我感觉更累了！所以在夏令营结束后，我意识到调整我的生活方式是非常非常重要的。我决定掌控自己的生活，找到其他放松方式。
因为我痴迷于玩游戏，所以不跟朋友们一起玩网络游戏对我来说是个很大的挑战。然而，我意识到，要想成功地放弃玩游戏，我必须用其他东西代替它。所以我考虑了应该尝试什么。攀岩、打保龄球、看喜剧和打篮球是我想到的可以替代玩游戏的事。
现在我和爸爸每个月都一块去攀岩。它提高了我的生活质量，改善了我的健康状况，增加了我的幸福感。通过攀岩，我恢复了精力，花更多的时间和爸爸在一起，并结识了新朋友。
用了六个月尝试新的放松方式后，我感到精力充沛多了。我觉得我可以让自己变得更好。如果对我来说确实如此，那么也许真的有可能让世界变得更美好。正如甘地所说，“欲变世界，先变其身。”
敬启，
乔治·菲尔丁
THANKSPeriod 4 单元语法讲练(Learning About Language)
1．make up one's mind 下定决心
change one's mind 改变某人的主意
bear/keep．．．in mind 牢记……
have．．．in mind 考虑；打算
keep/fix one's mind on/upon 将注意力集中于……
come to/into one's mind 某人忽然想起
read one's mind 看出某人的心思
[即学即练]——单句语法填空/完成句子
①Peter changed ________ (he) mind after a phone call at the last minute．
②With his mind ________ (fix) on the things not related to his studies, his marks have fallen rapidly．
③我上初中的时候，英语不是很好。我下定决心学好它，并制订了详细的计划。
When I was in junior high，my English was not so good．I ________________________ and made a detailed plan．
[名师点津] make up one's mind中的名词mind有单复数的变化，根据one's的单复数来确定mind的单复数。
2．be composed of由……组成(或构成)的
(1)compose vt．& vi． 组成；作曲；撰写
(2)composition n． 作文；作曲；作品；成分
(3)composer n． 作曲家；创作者
[名师点津] 意为“由……组成(或构成)的”的短语还有：consist of，be made up of等。
[即学即练]——单句语法填空/一句多译
①Mozart ________(compose) his last opera shortly before he died．
②We had to write a ________ (compose) on the subject “My Pet”．
③这次展览由三个部分组成，吸引了世界各地的人们。
a．The exhibition，(which is)____________ three parts，attracts people from all over the world．(compose)
b．The exhibition，(which is)____________ three parts，attracts people from all over the world．(make up)
c．The exhibition，______________________ three parts，attracts people from all over the world．(consist)
动词不定式作主语
动词不定式作主语通常表示具体的、一次性的或者具有将来含义的动作。单个动词不定式作主语时，句子的谓语动词用单数形式；两个及以上动词不定式作主语时，句子的谓语动词用复数形式。常见的动词不定式作主语的情况主要有三种：
一、动词不定式直接作主语
动词不定式具有名词的特征，可在句中充当主语。
To know something about English is one thing；to know English is quite another．
懂一点英语是一回事；掌握英语完全是另一回事。
To get enough protein each day is beneficial to our health．
每天摄取足够的蛋白质对我们的健康有益。
[名师点津] 动词不定式和动词-ing形式作主语的区别
(1)动词不定式：表示具体的某次动作，特别是将来的动作。
To teach you the uses of the infinitive is my job today．(表示具体的某次动作)
教你们不定式的用法是我今天的工作。
(2)动词-ing形式：表示比较抽象的、经常性的、一般性动作。
Walking is a good form of exercise for both the young and the old．(表示一般性动作)
散步是一种老少皆宜的很好的运动方式。
[即时训练1]——单句语法填空
①________ (look) after the safety of the community is his responsibility．
②________ (smoke) is prohibited here．
③________ (improve) people's lives and ________ (speed) up socialist construction are two important tasks today．
④________ (finish) reading the book will take you two hours．
二、it作形式主语，动词不定式作真正主语的常用句型
1．It is＋adj．(＋for/of sb．)＋to do sth．
It is very easy for him to work out this math problem．
对他来说解出这道数学题很容易。
It is very kind of you to help us．
你帮助我们真是太善良了。
[名师点津] 上述句型中使用介词for或of的区别
(1)“for sb．”的句型常用来表示事物的特征，用于表示动作特征或客观情况的形容词，如easy，hard，difficult，interesting，impossible等。
It's difficult for us to finish writing the composition in a quarter of an hour．
在十五分钟内写完这个作文对我们来说太难了。
(2)“of sb．”的句型一般用来表示人物的性格、品质，用于表示心理品质或性格特征的形容词，如good，kind，nice，clever，foolish，right，considerate，stupid等，动作的逻辑主语和这些形容词可以构成主系表结构，因此这样的句式也可转化为“sb．＋be＋adj．＋动词不定式”。
It was careless of him to make such a mistake．
＝He was careless to make such a mistake．
犯了这样的错误，他太粗心了。
2．It is＋a/an/one's＋n．(pity/shame/pleasure/duty/honour/task/．．．)＋to do sth．
It's a hard task to change bad habits in a short time．
要在短时间内改掉坏习惯是一项艰巨的工作。
3．It takes/costs/requires/makes．．．sb．/sth． to do sth．
lt took me two hours to finish the work．
我完成那项工作花了两个小时。
[名师点津] 在It is＋no use/no good/useless/a waste of time．．．句型中常用动词-ing形式作真正的主语。
It is no use waiting here doing nothing．
无所事事地在这里等待是没有用的。
[即时训练2]——单句语法填空
①It is possible ________ (walk) or bike the entire 14 kilometers．
②It was a rewarding experience for us ________ (realize) how closely plants and humans are related．
③It is clever ________ him not to tell anybody about it．
④Designer Jennifer Anderson admits ________ took her a while to come around to the opinion that using nutria fur for her creations is morally acceptable．
三、“疑问词＋不定式”作主语
动词不定式也可与疑问词what，who，which，when，where，why，how或者连词whether等连用作主语，此时，句子的谓语同样采用单数形式。
Where to put the box seems hard to decide．
很难决定把这个箱子放在哪里。
Whether to do it hasn't been decided．
是否做这件事还没定下来。
[即时训练3]——单句语法填空/句型转换
①Where and when ________ (cast) a net is more important than how to cast a net．
②Whether to compete in the relay race ______ (be) a decision that has to be made by our teacher．
③How the work should be finished is still a question．
→________________ is still a question．(“疑问词＋不定式”)
短文语境填空
Dear Tom，
It's so nice 1．________ (hear) that you want to come to Beijing 2．________ (study)．It's necessary 3．________ (remind) you of a few things．The streets of Beijing are very crowded, so it is best for you 4．________ (take) a bus or subway．It is very convenient．You can also ride a bike, but when you do not use it, it's necessary 5．________ (lock) it．Also, don't easily trust people who you don't know, in case you are cheated． Of course, you should believe that there are many kind people in the world．When you visit a friend's home, remember 6．________ (bring) something your host likes．It seems selfish of a man not 7．________ (give) back anything． If you are in trouble, remember to call me in time, I will help you, because it is easy for me 8．________ (do) it．
Yours，
Li Hua
第二篇课文(Using Language)
①dizzy adj．头晕目眩的
②flu n．流感
get the flu患流感
③stimulate vt．激发；促进；刺激
stimulate one's motivation激发某人的动力
④dentist n．牙科医生
⑤make up one's mind to do sth．下定决心做某事
⑥sugary adj．含糖的；甜的
⑦nut n．坚果
⑧skateboard n．滑板vi． 滑滑板
⑨dynamic adj．充满活力的；精力充沛的；动态的
⑩virus n． 病毒；病毒性疾病
feel．．． about oneself自我感觉……
within my own power在我力所能及的范围内
stressed out焦虑不安；心力交瘁
stress out(使)焦虑不安；心力交瘁
worn out筋疲力尽的；疲惫的
quit v．离开；退出；停止
bowling n．保龄球运动
comedy n．喜剧；喜剧片；滑稽节目
monthly adv．& adj．每月；每月一次的n．月刊
enhance vt．提高；增强；增进
refresh vt．使恢复精力；使凉爽；刷新
try out试验；尝试
Dear Editor，
After I attended your summer camp about health and lifestyle choices[1]，I realised I hardly ever felt well，either physically or mentally．I often felt sleepy and dizzy①，and lacked passion．Most worrying，though，I got the flu② easily and experienced many toothaches，too．
[1]“After I attended．．．choices”为after引导的时间状语从句。
At the end of the camp I heard，“Change the world by changing yourself．”This stimulated③ my motivation．A dentist④ once examined me and told me that too much sugar in my meals had damaged my teeth and health．I made up my mind to change⑤ two things in my life：to eat nothing with sugar and to exercise regularly．
After that I stopped buying all the sweets，biscuits，and sugary⑥ drinks that I used to have every day．Whenever I went out with friends[2]，I brought snacks from home，things that didn't have any added sugar：fruit，nuts⑦，dried meat，etc[3]．
[2]“Whenever I went out with friends”为whenever引导的时间状语从句，whenever意为“每当”。
[3]“that didn't have．．．etc”为that引导的定语从句，修饰先行词things。
My exercise was very simple：I went outside every day for at least 30 minutes and did something active．Sometimes I played table tennis or badminton with my cousins．Other times I jumped on my skateboard⑧ and rode around my neighbourhood，or just took a long walk．
The results have been fantastic．I feel more dynamic⑨ and stronger than ever，in both body and mind．I sleep soundly at night now．I no longer suffer from a flu virus⑩ or toothaches either．Best of all，in my opinion，is how I feel about myself ．[4]I feel like I'm in control of my own life．To make choices about myself[5] is within my own power ．I CAN change myself．I just need to try．
Yours truly，
Wang Lu
[4]“Best of all，in my opinion，is how I feel about myself．”是完全倒装结构，其基本构成为：表语(形容词)＋系动词＋主语。“how I feel about myself”为主语从句。
[5]“To make choices about myself”是动词不定式短语作主语，看作第三人称单数形式。
Dear Editor，
As I took part in the summer camp about personal life choices，I started to analyse my choices，especially what I did to relax and how it was affecting my whole life[6]．
[6]“what I did to relax and how it was affecting my whole life”为what和how引导的宾语从句。
After starting high school，I felt stressed out and always relaxed by playing computer games．I got so absorbed that I played the games day and night[7]．Playing was fun，but I felt even more worn out afterwards! So after the camp，I realised that it was very，very important to adjust my lifestyle[8]．I decided to take control of my life and find other ways to relax．
[7]“so absorbed that I played the games day and night”为so．．．that．．．句型，引导结果状语从句。
[8]that引导宾语从句，作动词realised的宾语，其中it作形式主语，动词不定式短语“to adjust my lifestyle”为真正的主语。
It was a big struggle not to join my friends in playing online games as I'm mad for them．However，I realised that to succeed in quitting ，I had to replace it with something else．So I thought about what to try．Rock climbing，bowling ，watching comedies ，and playing basketball were the things I thought of doing instead[9]．
[9]“I thought of doing instead”为省略了that或which的定语从句，修饰先行词the things。
Now my dad and I go rock climbing together monthly ！ It has enhanced the quality of my life，improving my health and increasing my happiness[10]．I get refreshed through climbing，spend more time with my dad，and get to meet new friends．
[10]“improving my health and increasing my happiness”为两个并列的动词-ing形式短语作伴随状语，与逻辑主语It之间为主动关系。
After six months of trying out new ways of relaxing，I feel much more energetic．I feel that I can change myself for the better．And if that's true for me，then it might truly be possible to change the world for the better．[11] As Gandhi said，“Be the change you want to see in the world．”
Sincerely，
George Fielding
[11]“if that's true for me”为条件状语从句；it是形式主语，动词不定式短语“to change the world for the better”为真正的主语。
亲爱的编辑：
在我参加了你们的关于健康和生活方式选择的夏令营之后，我意识到我几乎从未感觉健康过，无论是在身体上还是精神上。我经常感到昏昏欲睡，头晕目眩，缺乏激情。不过，最让人担心的是，我很容易患流感，还经常牙疼。
在夏令营结束时，我听到(了这样的话)：“通过改变自己来改变世界。”这激发了我的动力。有一次，一位牙医给我检查了一下，告诉我说，我饮食中的糖分过多，已经损害了我的牙齿和健康。我决定在我的生活中改变两件事：不吃含糖食物并经常锻炼。
从那以后，我不再买以前每天吃的所有糖果、饼干和含糖饮料。每当我和朋友外出的时候，我都会从家里带一些零食，一些没有任何添加糖的东西：水果、坚果、肉干等。
我的锻炼很简单：每天至少出去30分钟并做一些积极的活动。有时我和我的堂兄弟们打乒乓球或羽毛球。其他时候，我跳上滑板，绕着小区滑滑板，或者只是走很长的路。
结果非常棒。我感到身体和精神都比以前更富活力，更加强健。我现在晚上睡得很香。
我不再患流感，也不再受牙疼的折磨了。在我看来，最好的是我对自己的感觉。我觉得我能掌控自己的生活。我力所能及地作出关于自己的选择。我可以改变自己。我只是需要尝试。
敬启，
王璐
亲爱的编辑：
当我参加关于个人生活选择的夏令营时，我开始分析我的选择，特别是我为了放松自己所做的事，以及它是如何影响我的整个生活的。
上高中后，我感到焦虑不安，总是通过玩电脑游戏来放松。我十分着迷，没日没夜地玩游戏。玩是有趣的，但是过后我感觉更累了！所以在夏令营结束后，
我意识到调整我的生活方式是非常非常重要的。我决定掌控自己的生活，找到其他放松方式。
因为我痴迷于玩游戏，所以不跟朋友们一起玩网络游戏对我来说是个很大的挑战。然而，我意识到，要想成功地放弃玩游戏，我必须用其他东西代替它。所以我考虑了应该尝试什么。攀岩、打保龄球、看喜剧和打篮球是我想到的可以替代玩游戏的事。
现在我和爸爸每个月都一块去攀岩。它提高了我的生活质量，改善了我的健康状况，增加了我的幸福感。通过攀岩，我恢复了精力，花更多的时间和爸爸在一起，并结识了新朋友。
用了六个月尝试新的放松方式后，我感到精力充沛多了。我觉得我可以让自己变得更好。如果对我来说确实如此，那么也许真的有可能让世界变得更美好。正如甘地所说，“欲变世界，先变其身。”
敬启，
乔治·菲尔丁
Period 4
核心词汇
1．①his ②fixed ③made up my mind to learn it well
2．①composed ②composition ③composed of；made up of；which consists of/consisting of
单元语法
[即时训练1]
①To look ②Smoking ③To improve；to speed
④To finish
[即时训练2]
①to walk ②to realize ③of ④it
[即时训练3]
①to cast ②is ③How to finish the work
巩固落实
短文语境填空
1．to hear 2．to study 3．to remind 4．to take 5．to lock 6．to bring 7．to give 8．to do
9 / 9
