课题名称：7A Unit 4 Food （共九课时）
Language points:
The first period(P58----59)
1.Let’s have a hamburger. 让我们吃个汉堡包吧。(P58)
“Let’s”是“Let us”的缩写形式，其后接动词原形（即省去to的动词不定式）。以“Let’s”开头的句子为祈使句。例如：
Let’s go fishing.让我们去钓鱼吧。
Let’s play badminton. 让我们打羽毛球吧。
2.You’ re always hungry, Eddie. 埃迪，你总是很饿。
hungry adj.饿的 hunger n.饥饿 full 饱的
be hungry I’m very hungry. Can I have some bread?
Tom needs a hamburger. He is hungry. 汤姆要一个汉堡包，他饿了。
3.I need a lot of energy. 我需要许多能量。(P58)
(1)句中的need作动词，意为“需要”。 例如：
a. need sth.
I think we need some Coke.
Do you need my help?你需要帮助吗？
I don’t need any money.我不需要钱。
b. need to do sth I need to keep healthy/fit.
c. need sth to do sth. I need vitamins(维生素)to stay/keep healthy.
Those ________ need a lot of time _________(dance) every day.
Kitty needs a lot of _______(energy能量)_______ (dance) every day.
d. need +v-ing
The classroom needs cleaning/to be cleaned.
e. need还可作情态动词，常用于否定句。例如：
---Must I finish the work today?---No, you needn’t.
——我必须今天完成这项任务吗？——不必。
(2)a lot of = lots of 意为“许多、大量的”，相当于many或much。例如：
He has a lot of friends here. = He has many friends here.
Her parents have a lot of money. = Her parents have much money.
(3) energy 能量 不可数名词，用a lot of, lots of 或much 修饰。
4. You never exercise. 你从来不锻炼。(P58)
(1) never是副词，意为“永不，从不，决不，从未，一点也不”。通常置于行为动词之前、be动词或助动词之后。例如：
We never go to school on Sundays.我们星期天从来不上学。
I am never late for work.我上班从不迟到。
I will never forget (忘记)your birthday.我决不忘记你的生日。
(2) 句中的exercise 作动词，意为“锻炼”。例如：
My father exercises in the park every morning.
exercise还可作名词，意为“锻炼”。例如：
We need some exercise every day.我们需要每天锻炼。
5.I walk to my bowl many times a day. 我一天跑向我的饭碗好多次。(P58)
(1)句中的walk为不及物动词，walk to相当于go to … on foot，意为“步行去……”例如：She walks to school every day.她每天步行上学。
walk也可作及物动词，意为“带……散步，带……遛弯”。例如：
She walks him every day. 她每天带他散步。(P28)
walk还可作名词，意为“散步，溜达”。例如：
I take my dog for a walk every day.我每天溜狗。(P14)
He often goes for a walk after supper.他经常晚饭后去散步。
(2) times意为“次数、倍数”，属可数名词。例如：
We have meals three times a day.我们一天吃三顿饭。
time也可作不可数名词，意为“时间”。例如：
We don’t have much time to chat with each other at school. 我们在学校没有多少时间相互聊天。
6. What is your favourite food? 你最喜爱的食物是什么？ (P59)
They are my favourite.他们是我的最爱。(P59)
句中的favourite是形容词，意为“心爱的，最喜爱的”，修饰名词。例如：
What is your favourite colour? 你最喜爱的颜色是什么？
favourite也可作名词，意为“最喜爱的东西，最爱”。例如：
This song is one of my favourites.这首歌是我最喜爱的歌曲之一。
The second period(P60 1----3 段)
1.I want to be a dancer. 我想要当舞蹈家。(P60)
（1）want to be …意为“想要当/成为……”，want to do sth.意为“想要干某事”。例如：My sister wants to be a teacher when she grows up. 我妹妹长大后想要当教师。I want to go shopping this afternoon. 今天下午我想要去购物。want sb.to do sth.意为“想要某人干某事”。He wants me to dress up as a ghost.
（2）dancer是由动词dance加后缀-er变化而来的。例如：
wait-waiter﹡ ; play-player; work-worker, teach-teacher;
drive-driver; write-writer; swim-swimmer; run-runner;
2.A healthy diet-----
（1）healthy: fit (P60) adj. 健康的 healthily ( adv.) 健康地
health n. 健康
His grandfather is very healthy.
It’s important to keep healthy/fit.
Vegetables are good for our health. Smoking is bad for your health.
You must eat healthily and live healthily. ﹡
have good health=be healthy 身体好
have poor health=be unhealthy身体不好﹡
be in good health身体好
be in bad/poor health身体不好
enjoy good health享有健康的身体
（2）diet n.日常饮食 the Chinese diet
3. It’s easy for me to get tired when I dance. 我跳舞时很容易疲劳。(P60)
（1）该句的句型结构为“It is adj. for sb. to do sth.”意为“做某事对某人来说…”， it为形式主语，真正的主语为动词不定式to do sth.。因此，原句可改写为：To get tired when I dance is easy for me。
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