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[学案]牛津7A Unit4 教学要求,知识点讲解和练习3
牛津7A
【知识讲解】
1. Let’s have a hamburger.我们吃个汉堡包。
①let's=let us, let后面用动词原形即Let’s do sth.“让我们干……吧。”例如:
Let’s have a rest.让我们休息一下吧。
Let’s play games.让我们做游戏吧。
〖注意〗
let’s开头的祈使句,其反意疑问句在句末加shall we?表示包括听话人在内的一种建议。
如果不表示建议,而是提出一种请求,表示允许,不包括听话人在内时,
则let us不缩写成let’s,其反意疑问句为will you?
Let’s play basketball, shall we?我们踢篮球,好吗?(表示建议)
Let us see your picture, will you?让我们看看你的图画,可以吗?(表示请求允许)
②have动词,“吃、喝;有”。例如:
Would you have a cup of tea?你要喝杯茶吗?
What do you have for breakfast?你早饭吃些什么?
2. You are always hungry, Eddie.你总是饿,埃迪。
①always副词,“一直,总是”,是一个频率副词,常用于一般现在时。例如:
She always has lunch at home.她总是在家吃午饭。
The sun always rises in the east.太阳总是从东方升起。
②hungry形容词,“饥饿的”,其反义词是full,在句中作表语。例如:
Are you hungry?你饿了吗?
I always feel hungry after school.放学后我总是觉得饿。
3.
①never副词,“从不,永不”,本身具有否定意义,语气比not重,用never表示否定时,不需要加助动词“not”。例如:
I never go to school late.我上学从不迟到。
She never writes to her father.她从不给她的父亲写信。
②exercise动词,“锻炼,训练”,在句中作谓语。例如:
Mike’s sister often exercises her voice in the morning.麦克的姐姐经常在早晨嗓子。
He is exercising the boys in swimming. 他正在训练男孩子游泳。
名词,“训练、锻炼(单数);做操;练习、习题(复数)等”。例如:
You’d better take more exercise.你最好多锻炼。
Eat less and take more exercise, you will be thin.少吃饭,多运动,你会苗条的。
Have you finished your Chinese exercises?你的语文作业做完了吗?
do morning exercises做早操
do eye exercises做眼睛保健操
4. I want to be a dancer.我想当一名舞蹈演员。
want to be“想成为……”,want动词,“想,想要”其后可接名词或动词不定式作宾语,也可宾语接动词不定式,即want sth想某物,want to do sth.想做某事;want to to do sth.“想让某人做某事”。例如:
I want some black tea.我想要些红茶。
What do you want me to do? 你想要我做什么?
be动词原形,“做,成为”。例如:
I want to be a doctor.我想成为一名医生。
Don’t be late!别迟到!
5.
常见的句型是:It is+ adj.+ for/of sb to do sth。例如:
It is dangerous for children to swim in the river.孩子在这条河里游泳很危险。
It was careless of you to do that.你这么做真粗心。
6. Before, I seldom ate fruit and vegetables.以前,我不常吃水果和蔬菜。
seldom副词,“很少,不常、难得”,其反义词是often。通常置于行为动词之前;助动词和be动词之后。是一个表示否定意义的副词。例如:
Mrs. Brown seldom goes out.布朗夫人很少外出。
Millie is seldom late for school.米莉上学很少迟到。
7.
between介词,“在(两者之间)”,后面可以跟名词或代词,跟代词时要用宾格。例如:
Put the desk between us.把课桌放在我们俩中间。
between…and…“在……和……之间”,它限于两者之间;如果是三者之间或三者以上,要用介词among。between和and之间可以是两个人,也可以是两个不同的物或两个点(时间、数字、场所)。例如:
Peter sat between Mary and Jane.彼得坐在玛丽和简之间。
The shop opens between 9 a.m. and 5 p.m.商店在上午九点和下午五点间开门。
Mary is sitting among the children.玛丽坐在孩子们之中。
8.
be good for…“对……有益(有用)”,后接人或事物的名词。例如:
Sunshine is good for your plants.你的花草要多晒太阳。
Is this kind of food good for me?这种食物对我身体有益吗?
This cream is good for bums.这种油膏治烧伤和烫伤很管事儿。
Milk is good for children.
类似的固定词组还有:
be good at“擅长,善于”, 后接名词,代词或动名词。例如:
Kate is good at English.凯特擅长英语。
Mike is good at playing football.麦克擅长绘画。
be good to“对……好(和善、慈爱)”,后接表示人的或要格化的名词。例如:
She is good to me.她对我好。
9.
eat sth. for breakfast/lunch/supper=have sth. for breakfast/lunch/supper
“早饭/午饭/晚饭吃……”。例如:
I ate some bread for breakfast.=I had some bread for breakfast.早饭我吃的面包。
What did you eat for supper?=What did you have for supper?晚饭你吃得什么?
10. After class, I also like playing computer games and chatting with my friends on the Internet.
课后,我也喜欢玩电子游戏和朋友们在网上聊天。
like doing sth.“喜欢干某事”,后面跟动名词表示习惯性的动作。playing和chatting属于
名词短语,在句中作谓语动词的宾语。
play动词,①“玩,做(游戏),踢(球)”,可以构成以下的固定词组:
play
cards玩牌
②“演奏,吹奏”,可以构成的固定词组有:
play the piano
play with…
play…with…
chat动词,“闲谈,聊天”。例如:
They are chatting in the room.他们在屋子里闲聊。
Mrs Green likes chatting with the friends.格林夫人喜欢和朋友们聊天。
11.
for介词,表示时间时指一段时间,其后表示时间的名词往往用复数形式。
I stayed in Shanghai for three months.我在上海呆了三个月。
He will study in this school for four years.他将在这个学校学习四年。
12. I swim twice a week.每周我游泳两次。
twice副词,“两次,两倍”,一次用once,表示三次以上用“基数词+times”。例如:
three
times三次
twice=two times, 通常多用twice, 如:twice a day
一天两次
13.
How often指动作发生的频率,即每多少时间进行一次,常与一般现在时或一般过去时连用,回答一般是once a week, twice a month, every two days, sometimes, quite often等。例如:
How often do you go and see your grandfather?你每隔多久去看你爷爷一次?
Once a week.每周一次。
How often did he write to you?他每隔多久给你写一封信?
Every two weeks.每两周一次。
14. Where did Kitty get her energy from?基蒂从哪儿获得她的能量?
get…from…“从……获得(得到)……”,例如:
We get some eggs and chicken from chickens.我们从鸡身上得到鸡蛋和鸡肉。
What can we get from cow?我们从牛身上可以得到什么?
15. a cold drink冷饮,其反义词组是a hot drink热饮
drink 在这课里是名词,“饮料”。例如:bottled drinks
还可以作及物动词,“饮,喝”,如:drink a glass of water喝杯水drink a cup of tea喝杯茶
也还可以作不及物动词,“喝酒、酗酒”。例如:
He doesn’t
drink.他没有喝酒的习惯。