(共17张PPT)
Lesson 36
Clean Cars
New words
text
Let’s do it
Jenny’s e-mail
Hi, Li Ming
This week in school, we discussed transportation. We learned about trains, planes, bicycles, cars and rockets.
The teacher asked us to think about the future of transportation. What type of transportation will people use a hundred years from now We had to think of an invention, and present it to the class.
Today, Danny gave his presentation. He put on an old backpack. He called it Flying Donuts. He got on a chair and jumped down. Then he asked, “Did you see me I flew!”
I would like to invent a clean car, but I don’t know how. Can you help me think of an idea
Jenny
Li Ming’s e-mail
Dear Jenny,
That sounds like a fun project!
You’re right about cars. They are very bad for our environment. People should walk or ride bicycles more often. That way, our air would be a lot cleaner. You can go far on a bicycle. Today I rode across the city. I pedalled for more than an hour!
Oops! But I haven’t answered your question yet. You can’t pedal a car! Have you thought of a new fuel for cars
In the future, cars will probably use water or sun to power them.
I hope your presentation goes well.
Li Ming
Let’s do it
Is clean air important Talk with your classmates about “clean air in cities”, then write an e-mail to your city governor. What should the governor know about the air in your city What do you think he or she should do
The teacher asked us to think about the future.
老师叫我们考虑未来(的交通运输)。
ask sb. to do sth. 叫(要)某人做某事。
The teacher asked us to do our homework carefully. 老师叫我们认真做作业。
Lucy asked me to go to the park with her tomorrow. 露西叫我明天和她一起去公园。
【拓展】
和ask一样后面可跟动词不定式作宾语补足语的动词还有:tell, want, allow, wish, like, teach等。
I told Danny to eat more healthy food. 我告诉丹尼要多吃一些健康的食物。
My mother wanted me to visit Beijing with her. 我母亲想要我和她一起参观北京。
I wish you to have a good journey. 我祝你旅途愉快。
【注意】此种句型的否定结构就是不定式to符号前加not。如:My mother told me not to play on the road. It’s dangerous. 妈妈叫我不要在马路上玩耍,很危险。
We had to think of an invention, and present it to the class. 我们必须想出一种发明,并把它展示给同学们。
have to不得不;必须
It is cold outside. I have to put on my coat. 外面天气寒冷,我不得不穿上外套。
Tom’s pen is lost. He has to buy a new one. 汤姆的的钢笔丢了。他必须买只新的。
辨析: have to与must
1) 两者都表示“必须”,后都加动词原形。have to常表示因外界原因所致,客观上“不得不做某事“;而must则表示说话人的主观看法,指主观上 “必须”做某事。
It’s too late. They have to go home. 天太晚了,他们必须回家了。
We all must study hard. 我们都必须努力学习。
2) have to 有人称和数的变化,第三人称单数用has to ;也有时态的变化,一般过去时用had to;一般将来时用will have to;而没有人称和数的变化,也没有时态的变化。
He has to answer the question again. 他不得不重新回答这个问题。
She was ill, so she had to stay at home yesterday. 昨天她生病了,因此她不得不呆在家里。
You will have to do it like this.你必须这样做。
He called it Flying Donuts. 他叫它会飞的油炸圆饼。
call在句中的意思是“取名,把……叫做”,可以跟双宾语结构。
We call her Miss Gao. 我们把她叫做高小姐。
They call that man “Lao Wang”. 他们称呼那人为 “老王”。
【拓展】
call的用法广泛。如:
1) vi. 呼喊,大呼,大声说
He called for an hour, but no one heard. 他高喊了1个小时,但是却没人听见。
2) vi. 拜访 call at (sp.) 访问(某处) call on (sb.) 拜访(某人)
I called on Tom on my way to school yesterday. 昨天在上学的路上我拜访了汤姆。
Many children called my house yesterday. 许多孩子昨天来到我家。
3) vt. 打电话
I called her last Sunday. 上星期天我给她打了电话。
4) n. 电话 give sb. a call 给……打电话
I’ll give you a call. 我会给你打电话。
That sounds like a fun project!
听起来是个有趣的设想。
sound n. & v.
1)n. 声音。
Sound travels at 340 metres per second in air. 声音在空气中以每秒340米的速度传播。
2) vi. 听起来,后跟形容词。Your idea sounds (like) a good one. 你的想法听起来不错。
辨析:sound, voice与noise
sound声音,最常用。如:the sound of running water流水声,voice嗓音,指人的说话声。
She has a beautiful voice. 她的嗓音很优美。
noise噪音,指各种嘈杂声。Don’t make any noise! Your father is sleeping. 不要吵闹!你爸爸在睡觉。
Our air would be a lot cleaner.
我们的空气将灰更干净。
a lot cleaner干净的多
a lot在句中修饰比较极,表示程度。
If we work hard, our country will be a lot more
beautiful.
如果我们努力工作,我们国家将会美丽的多。
【拓展】
在句中可以修饰比较极的副词还有much, even, still等。
Tom is much taller than Jim.
汤姆比吉姆高的多。
He is a little taller than Jim. 他比他哥哥细心点儿。
【衔接】
a lot of=lots of“许多,大量”,修饰可数名词
和不可数名词。
There are a lot of cars on the street.
街上有许多小汽车。
There is lots of water in the glass.
玻璃杯里有很多水。
many表示“许多”,修饰可数名词复数;much
表示“许多”,修饰不可数名词。
I have many interesting books.
我有许多有趣的书。
How much milk is in the glass
玻璃杯里有多少牛奶?
I hope your presentation goes well.
我希望你的发明一切顺利。
go well正常,顺利,相当于be all right。如:
I hope everything goes well. =I hope everything is all
right. 我希望一切顺利。
I hope my invention goes well. 我希望我的发明很顺利。