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Unit 3 Keep Fit 知识点总结与练习
七下人教 PEP 版（2024）英语
一、重点词汇
（一）基础词汇
fit adj. 健康的；合适的
exercise v. & n. 锻炼；练习
healthy adj. 健康的
unhealthy adj. 不健康的
habit n. 习惯
junk n. 无用的东西；无价值的东西
coffee n. 咖啡
result n. 结果；后果
percent n. 百分之……
online adj. 在线的；联网的
television n. 电视；电视机
although conj. 虽然；尽管；即使
through prep. 以；凭借；穿过
body n. 身体
mind n. 头脑；心智
such adj. 这样的；那样的
together adv. 在一起；共同
die v. 消失；灭亡；死亡
writer n. 作家；作者
dentist n. 牙科医生
（二）拓展词汇
fitness n. 健康；健壮
healthily adv. 健康地
less adj. & adv. 较少的（地）；更少的（地）
least adj. & adv. 最少的（地）；最小的（地）
none pron. 没有一个；毫无
point n. 得分；点 v. 指；指向
twice adv. 两次；两倍
once adv. 一次；曾经
maybe adv. 大概；或许；可能
二、词性转换
fit（形容词）- fitness（名词）
health（名词）- healthy（形容词）- unhealthy（形容词）- healthily（副词）
write（动词）- writer（名词）
die（动词）- death（名词）- dead（形容词）
三、词义辨析
（一）exercise 与 practice
exercise 作动词时，意为 “锻炼；运动”，强调通过身体活动保持健康或提高体能；作名词时，意为 “锻炼；体操”，表示锻炼时是不可数名词，指具体的练习、习题、体操等时是可数名词。例如：I exercise every morning to keep fit.（我每天早上锻炼以保持健康。）We do morning exercises every day.（我们每天做早操。）
practice 作动词和名词时，都有 “练习；实践” 的意思，侧重于反复练习以提高技能。例如：You need to practice speaking English every day.（你需要每天练习说英语。）Practice makes perfect.（熟能生巧。）
（二）although 与 but
although 意为 “虽然；尽管；即使”，引导让步状语从句，不能与 but 同时出现在同一个句子中。例如：Although it was raining, he still went to school on time.（虽然在下雨，但他仍然按时去上学了。）
but 意为 “但是”，表示转折关系。例如：He is very tired, but he still keeps working.（他很累，但是他仍然继续工作。）
（三）none 与 no one
none 既可指人也可指物，常与 of 连用，回答 how many 或 how much 引导的疑问句 ，表示 “没有一个；毫无”。例如：None of them like the movie.（他们中没有一个人喜欢这部电影。）—How much water is there in the bottle —None.（— 瓶子里有多少水？— 一点也没有。）
no one 只能指人，不与 of 连用，回答 who 引导的疑问句，表示 “没有人”。例如：—Who is in the classroom —No one.（— 谁在教室里？— 没有人。）
四、重点句型
—What do you usually do on weekends 你周末通常做什么？
—I usually exercise. 我通常锻炼。
—How often do you go to the movies 你多久去看一次电影？
—I go to the movies maybe once a month. 我大概一个月去看一次电影。
—How many hours do you sleep every night 你每晚睡多少个小时？
—I sleep nine hours every night. 我每晚睡九个小时。
Although many students like to watch sports, game shows are the most popular. 虽然许多学生喜欢看体育节目，但游戏节目是最受欢迎的。
It's good to relax by using the Internet or watching game shows, but we think the best way to relax is through exercise. 通过上网或看游戏节目放松很好，但我们认为最好的放松方式是通过锻炼。
She says it's good for my mind and body. 她说这对我的身心有好处。
My mother wants me to drink it. She says it's good for my health. 我妈妈想让我喝它。她说这对我的健康有好处。
However, she has some bad habits, too. 然而，她也有一些坏习惯。
She never goes to the dentist for teeth cleaning. 她从不去找牙医洗牙。
You're smart about your health most of the time. 大多数时候你在健康方面很明智。
五、语法聚焦：一般现在时（频率副词的用法）
频率副词的位置：频率副词一般放在行为动词之前，be 动词、助动词或情态动词之后。例如：I usually get up at 6:30.（我通常六点半起床。）She is always late for school.（她上学总是迟到。）They can never understand me.（他们永远都不理解我。）
常见频率副词的频率排序：always（总是）> usually（通常）> often（经常）> sometimes（有时）> hardly ever（几乎从不）> never（从不）。例如：He always helps others.（他总是帮助别人。）I usually go to school by bike.（我通常骑自行车去上学。）She often plays basketball after school.（她放学后经常打篮球。）Sometimes I watch TV in the evening.（有时我晚上看电视。）He hardly ever eats junk food.（他几乎从不吃垃圾食品。）I never drink coffee.（我从不喝咖啡。）
练习题
一、词汇填空
We should do more e______ to keep fit.
Eating too much j______ food is bad for our health.
My father likes drinking c______ in the morning.
The r______ of the exam made him very happy.
He watches TV t______ a week.
二、用所给词的适当形式填空
We should eat ______ (health) food.
My mother ______ (exercise) every day to keep healthy.
Although he is young, he knows a lot.（用 but 改写句子，注意：although 和 but 不能同时使用，此为练习对两个词的理解和运用）
______ he is young, ______ he knows a lot.
Junk food ______ (be) not good for our health.
How often does your sister ______ (go) shopping
三、单项选择
—______ do you exercise
—Three times a week.
A. How long B. How often C. How much D. How many
______ he is very young, ______ he can do many things.
A. Although; but B. But; although C. Although; / D. But; /
We should eat ______ vegetables and ______ meat.
A. more; less B. less; more C. more; more D. less; less
My father wants me ______ milk every day.
A. drink B. to drink C. drinking D. drinks
—How often do you go to the library
—______
A. Two hours B. Twice C. Twice a week D. In two days
四、句型转换
I usually play basketball on weekends.（对划线部分提问）
______ do you usually ______ on weekends
He watches TV three times a week.（对划线部分提问）
______ ______ does he watch TV
She goes to the movies once a month.（改为否定句）
She ______ ______ to the movies once a month.
Although it's raining, we still go to school.（改为同义句）
______ it's raining, we still go to school.
He does his homework every day.（改为一般疑问句）
______ he ______ his homework every day
五、阅读理解
Many people want to keep healthy. Here are some ways to help you.
First, eat healthily. You should eat more fruits and vegetables. They are good for your health. Don't eat too much junk food. It's bad for you.
Second, exercise regularly. You can run, swim or play basketball. Exercise can make you strong and healthy.
Third, get enough sleep. You need to sleep at least eight hours a night. A good sleep can help you study or work better.
At last, keep a good mood. Don't be too worried or angry. It's not good for your health.
How many ways to keep healthy are mentioned in the passage
A. Three. B. Four. C. Five. D. Six.
What should we eat more
A. Junk food. B. Meat. C. Fruits and vegetables. D. Ice - cream.
How long should we sleep a night
A. At least six hours. B. At least seven hours. C. At least eight hours. D. At least nine hours.
What does the underlined word “mood” mean in Chinese
A. 身体 B. 情绪 C. 饮食 D. 锻炼
Which of the following is TRUE according to the passage
A. Eating junk food is good for our health.
B. Exercise can make us weak.
C. A good sleep can help us study or work better.
D. Being angry is good for our health.
六、书面表达
健康的生活习惯对于成长中的我们是非常重要的。你认为健康的生活习惯应当是怎样的呢？请根据下面的信息提示，写一篇英语短文，介绍一下你自己的健康生活习惯。
提示：
健康饮食；
早睡早起，不熬夜；
参加运动，强身健体。
要求：
包含所有要点内容，可适当发挥；
语言表达准确，语意通顺、连贯；
词数：60 - 80 词。
答案及解析
一、词汇填空
exercise 解析：根据 “keep fit（保持健康）” 可知，此处是说要多锻炼，do more exercise “多锻炼”。
junk 解析：junk food “垃圾食品”，固定短语，吃太多垃圾食品对健康有害。
coffee 解析：根据 “drinking（喝）” 和首字母提示，可知是喝咖啡，coffee “咖啡”。
result 解析：the result of“…… 的结果”，考试结果让他很开心。
twice 解析：twice a week “一周两次”，表示频率。
二、用所给词的适当形式填空
healthy 解析：修饰名词 food 要用形容词，health 的形容词形式是 healthy “健康的”。
exercises 解析：主语 My mother 是第三人称单数，一般现在时中，谓语动词用第三人称单数形式，exercise 的第三人称单数是 exercises。
He is young, but he knows a lot. 解析：although 和 but 不能同时使用，although 引导的让步状语从句可与 but 引导的并列句转换，but 放在句中，首字母小写。
is 解析：junk food “垃圾食品” 是不可数名词，作主语时，谓语动词用单数形式，be 动词用 is。
go 解析：这是一个一般现在时的特殊疑问句，前面有助动词 does，后面的动词用原形，所以填 go。
三、单项选择
B 解析：根据答语 “Three times a week.（一周三次）” 可知，问句是对频率提问，用 how often “多久一次”；how long “多长时间”，对时间段提问；how much “多少”，对不可数名词的数量或价格提问；how many “多少”，对可数名词的数量提问。
C 解析：although 意为 “虽然，尽管”，引导让步状语从句，不能与 but 同时使用，所以选 C。
A 解析：根据常识，为了保持健康，我们应该多吃蔬菜，少吃肉。more “更多的”，less “更少的”，修饰可数名词复数和不可数名词，所以选 A。
B 解析：want sb. to do sth.“想要某人做某事”，是固定搭配，所以选 B。
C 解析：问句 “How often...” 是对频率提问，A 选项 “Two hours” 表示时间段；B 选项 “Twice” 表示次数；C 选项 “Twice a week” 表示频率 “一周两次”；D 选项 “In two days” 表示 “两天后”，所以选 C。
四、句型转换
What; do 解析：对 “play basketball（打篮球）” 这个动作提问，用 what，原句中没有 be 动词和情态动词，借助助动词 do，后面动词用原形 do。
How often 解析：对 “three times a week（一周三次）” 频率提问，用 how often “多久一次”。
doesn't go 解析：原句是一般现在时，主语 She 是第三人称单数，改为否定句时，借助助动词 doesn't，后面动词用原形 go。
Though 解析：although 和 though 都有 “虽然，尽管” 的意思，可互换，所以此处填 Though。
Does; do 解析：原句是一般现在时，主语 He 是第三人称单数，改为一般疑问句时，借助助动词 does，放在句首，首字母大写，后面动词用原形 do。
五、阅读理解
B 解析：根据文中 “First...Second...Third...At last...” 可知，提到了四种保持健康的方法，所以选 B。
C 解析：根据 “First, eat healthily. You should eat more fruits and vegetables.” 可知，我们应该多吃水果和蔬菜，所以选 C。
C 解析：根据 “Third, get enough sleep. You need to sleep at least eight hours a night.” 可知，我们每晚至少要睡八个小时，所以选 C。
B 解析：根据 “Don't be too worried or angry. It's not good for your health.” 可知，不要太担心或生气，这对健康不好，所以 mood 意思是 “情绪”，选 B。
C 解析：根据 “A good sleep can help you study or work better.” 可知，良好的睡眠可以帮助我们更好地学习或工作，C 选项正确；A 选项，根据 “Don't eat too much junk food. It's bad for you.” 可知，吃垃圾食品对健康有害，A 错误；B 选项，根据 “Exercise can make you strong and healthy.” 可知，锻炼能让我们强壮和健康，B 错误；D 选项，根据 “Don't be too worried or angry. It's not good for your health.” 可知，生气对健康不好，D 错误。
六、书面表达（参考范文）
略

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