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七年级

牛津英语七年级上Unit4 Food精讲精练稿

时间:2015-08-28 点击: 作者:

学习内容
1. 学习使用频度副词 never, seldom , sometimes, often, usually, always的用法
2. 学习名词的复数形式
3. 学会使用不定冠词
4. 学习简单的用餐用语
5. 本单元应掌握的重点单词、短语和句子
重点难点
单词
Hamburger, vegetable, fruit, bread, meat, juice, water, story, tea, salt, tomato, soup, luck, need, exercise
Hate, change, feel, carry, mean, stay, taste
Hungry, tired important, healthy, sweet, fast , dry, favourite, large, fast, seldom, often
短语
Not….any more, a top student, of course, a glass of water, fast food, dried fish, ice cream, less than, not ….at all ,take in , twice a week
句子
I get tired when I dance.
It is important for a dancer to be healthy.
I changed my diet because I want to be healthier.
I always have a healthy meal for dinner.
I usually have bread for breakfast.
I seldom ate fruit and vegetables.
What do you need to buy?
It takes half an hour to cook.
How often do you exercise?
必背词汇
1.Healthy 健康的 如:
Fruit and vegetables are healthy food. 水果和蔬菜是健康食品。
Take care of yourself. I hope you are happy and healthy.照顾好你自己。我希望你健康快乐。
名词形式:health如:
Eating too much fried food is not good for your health.
吃过多油炸食物对你的健康不利。
2.Exercise
(1)作可数名词,意思是“练习、训练”如:
Our Maths teacher often asks us to do a lot of exercises.
我们数学老师经常让我们做很多练习。
Exercise-book练习本,exercises(复数)体操,morning exercises 早操
(2)作不可数名词,意思是“操练;锻炼”如:
Old people should not do much strong exercise.
老年人不应该做太多剧烈的锻炼。
(3)作动词,意思是“锻炼”。如:
It,s very useful to exercise regularly.
定期锻炼很有用。
3.Taste尝 如:
Please taste this soup.请尝一尝汤的味道。
尝起来….(连系动词,后接形容词)如:
It tastes sweet.这东西吃起来很甜。
味道 如:
Tae taste of the fish is very nice.这鱼的味道很不错。
4.Many times a day 一天许多次
这一结构为:次数+周期。如:
Once a week 一周一次
Twice a month一个月两次
Three times a year 一年三次
5.Fish鱼
在数量方面,fish单复数同形。如:a fish 一条鱼,two fish两条鱼。Fish也可以有复数形式fishes,但表示不同种类的鱼。
6.Get tired 感到疲劳
Get用作连系动词,译为“变得”“觉得”,与形容词tried一起构成系表结构,表达疲劳之意;也可以用be tired来表达此意。
另外,get/be tired 之后可加介词of ,表示“厌倦…”“讨厌….”.如:
Most pupils are tired of doing their homework.大多数小学生都不喜欢做家庭作业。
7.Not…any more不再…如:
I don’t eat sweet snacks between meals any more.我再也不在用餐之间吃甜食了。
Now he is not late for school any more.如今他上学再也不迟到了。
8.Mean意味着;意思是 如:
That means I take in about 2 000 calories every day.那就意味着我每天吸收2 000卡的热量。
I mean you should work harder from now on.我的意思是从现在起,你得更加努力地学习。
Mean to do sth. 打算做某事。如:
Do you mean to go there by air?你打算乘飞机去那儿吗?
Meaning意思 如:
What’s the meaning of your words?你的话是什么意思?
识记句型
1.I get tired when I dance.当我跳舞时,我感到很累。
这是一句带有时间状语多句的主从复合句。时间状语从句的引导词为when,意为“当…的时候”。如:
We like listening to music when we have a dinner.我们喜欢吃饭时听音乐。
2.It’s important for a dancer to be healthy. 对于一个舞蹈演员来说,健康是很重要的。
此句中含有动词不定式的复合结构:
It is +for… to do sth. 对…来说做某事…
其中for…to do sth。是动词不定式的复合结构,在句中是真正的主语,it 为形容主语。如:
it’s helpful for us to read English every day.
对我们来说,每天朗读英语是有帮助的。
3.How often do you exercise?你多长时间进行一次体育锻炼?
How often询问做某事的频率,回答可以是具体的间隔时间,也可以是表示频率的副词。如:
How often do you eat fruit and vegetables?
I eat fruit and vegetables every day.
How often do you walk to school?
I never walk to school.
How long询问做某事持续的时间,答语中的时间常用介词for 引出。如:
How long do you watch TV every night?
I watch TV for 2-4 hours every night.

4. it takes half an hour to cook.做饭要花半小时。
It takes(sb.)some time to do sth.这是一个固定结构,表示做某事要花费(某人)多少时间。如:
It takes my grandfather one hour to read newspapers every day.
我爷爷每天花一个小时看报纸。
It took us two hours to have the big meal last night.昨晚我们花了两个小时吃了一顿丰盛的晚餐。

精讲语法
1. 副词
英语里表示频度“由少到多”“由低到高”的副词依次有:never, seldom, sometimes, often, usually, always.它们在句中通常放在连系动词、情态动词、助动词之后,行为动词之前。如:
I always eat an apple for breakfast我早饭总要吃一个苹果。
Millie is never late for class. 米莉上课从不迟到。
Simon often helps his mother in the garden.西蒙经常帮助妈妈在花园里干活。

2. 词的复数
名词复数的变化规则:
(1) 一般情况直接加s。(S在清辅音后读[S],在浊辅音和元音后读[Z])
如:books, pens , boys.
(2)以s, z, x, ch, sh结尾的名词加es.(es读[Iz])
如:buses , boxes
(3)以“辅音+y”结尾的名词改Y为I,再加es.(es读[z])
如:babies
(4) 以f , fe结尾的名词改f, fe结尾的名词改f , fe为ves.(ves读[vz])
如:knives
(5)以o 结尾的名词一般情况加es,少数加s.(es 读[z];s读[z])
如:tomatoes, potatoes, pianos, kilos.

3. 不定冠词 a/an
(1)概述:a/an 常用于可数名词单数前,起泛指作用。
(2)用法:
A.表示数量“一个”.如:I have a brother and two sisters.
B. 表示“每一个”。如:we go home twice a week.
C. 表示“某一个”。如:a girl often comes to see them.
D. 表示一类人、物。如:This is a chair and that’s a desk.
E.用在习惯用语中。如: a lot of , have a talk, Have a rest, have a good time.
(3)说明:a用在辅音之前,如:a book, a useful book;
An用在元音之前,如:an “s” , an hour.
典型例题
例: Do you swim?
Twice a week.
A. How long B. How much C. How often D. How many
解析:疑问副词how 可以和不同的形容词或副词搭配,构成固定的疑问词组:how long“多长;多久”,通常对一段时间提问;how much“多少”,通常对修饰不可数名词前的定语提问,也可以询问“价格”“时间”等;how many“多少”,是对可数名词前的数词进行提问;how often“多久”,通常是对周期性的时间状语提问。
浏览题干及选项,应答部分显然是个周期性的时间状语。
答案C。
例2.
(1)One morning he found a bag . There was “s” on the corner of bag.
(2)There is egg on the table. egg is for you .
A. a; a(A)
B. a; the(The )
C. an; an(An)
D. an; the (The)
解析:在上下文中如果同一个人或物反复出现几次,第一次提到时用不定冠词;以后重复出现则表示特指,用定冠词。不定冠词an用在元音音素开头的名词或词组之前。
答案:D;D

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