知识点
【重点短语】
1.instead of 取代,替代
2.light bulb 电灯泡
3.help sb (to) do sth 帮助某人做某事
4.live a better life 过更好的生活
5.in the early 19th century 在19世纪初
6.in history 在历史上
7.at the start of 在……初期
8.since then 从那以后
9.each other 彼此
10.millons of 数百万的
11.mobile phone 手机
12.allow sb to do sth 允许某人做某人
13.keep in touch with 与……保持联系
14.in the day time 在白天
15.imagine doing sth 想象做某事
16.make noise 制造噪音
17.keep…off 使……远离
18.in front of 在……的前面
19.at the same time 同时
20..throw away 扔掉
21.turn into 变成
22.right now 现在
23.all the time 一直
24.make a mess 弄得一团糟
25.lead to 导致，引起
26.with the help with 在……的帮助
【要点解释】
1. Listen to advertisements for four funny inventions. 听四则有趣发明的广告.
(1).advertisement n.广告(可数) ad 缩写
advertise v.做广告，登广告
They will put an advertisement in the newspaper.
(2).funny adj.可笑的；滑稽的
You’re an extremely funny man. 你是一个非常滑稽的人。
fun与funny的区别: fun与funny都可以作形容词，但它们的意思不同,fun意为有趣的，funny意为滑稽的, fun还可以作名词,意为乐趣,有趣的事物.
2. Write a short article about a new invention that you will create. 写一篇有关你要创造的一项新发明的短文.
(1)create v.创作,创造
creation n.创造物,作品
creator n.创造者
creative adj.有创造力的
creativity n.创造力
试翻译：这个创造者创作了这个作品，他很有创造力。 The creator created the creation ,he is creative.
【辨析】 create 和 make
create 创造,创作 创造出原来并不存在的东西 He created a new idea. 他创造了一个新想法.
make 创造,制作 通过工作制造出某种东西 The workers make the watch in the factory. 工人们在工厂制造手表.
3. telephone n.电话,电话机 缩写形式是phone mobil phone移动电话,手机
I don’t have a telephone.我没有一部电话.
telephone v.给……打电话
I telephone my grandpa every week.我每周给爷爷打电话.
给某人打电话的表达：
①telephone /phone sb
I often telephone /phone my mother about my study.
②call sb
please call me.
③give sb a call
I gave my father a call yesterday.
④make a telephone call to sb
My friends often make a telephone call to me.
4. After its invention, traveling became faster and more comfortable. 它发明后旅行变得更快更舒适了.
comfortable adj.舒适的,其比较级是more comfortable.
comfortably adv.舒适地 uncomfortable adj.使人不舒服的
A home should be comfortable and friendly. 家应该让人感觉到舒适、亲切的.
5. In the early 19th century....在19世纪早期
century n.世纪(可数) in the+序数词+century 在…世纪
in the early 19th century = at the start of the 19th century. 在19世纪初
in the late 19th century = at the end of the 19th century. 在19世纪末
He was the most famous writer in the 19th. 他是19世纪最著名的作家.
6. Alexander Graham Bell invented one of the first practical telephones in 1876. Alexander Graham Bell在1876年发明了第一批可用的电话之一.
(1)invent v.发明 invention n发明 inventor v.发明
invent与discover
invent发明指客观上没有，发明以前未曾有过的东西，如新发明的使用工具，方法
discover发现 指发现客观已存在，但是不为人知的东西或者事情；
Gilbert discovered electricity,but Edison invented the electric light bulb.
(2)practical adj.实用的 拓展：practice 练习 n practise 练习 v
Our clothes are lightweight, fashionable and practical for holidays. 我们的服装轻便,时尚，并且很适合 度假穿。
7. Thomas Edison developed the first practical light bulb in 1879. 爱迪生在1879年发明了第一批可用的电灯
develop v.发展,开发,研发
We need to develop solar energy.我们需要开发太阳能。
拓展：
development 发展n
developed 发达的 adj
developing 发展中的 adj
发达国家：a developed country
发展中国家：a developing country
8. They allow people to keep in touch with each other anytime, anywhere它们容许人们在任何时候，在任何地点彼此保持联系。
1) allow sb to do sth 允许某人做某事
allow doing是某人允许做某事
We don't allow smoking in our house. 在我们家里不容许吸烟。
They allow their children to go to the park.他们允许孩子们去公园。
2) keep in touch with sb=stay in touch with 和某人保持联系
Do you still keep in touch with your parents after you leave them? 你离开父母以后还经常与他们保持联系吗？
9. With light bulbs,people can do as many things in the evenings as they can in the daytime. 用电灯,人们在晚上做和明天一样多的事情.
as many+复数名词+as one can 和…一样多的…
You can borrow as many books as he can. 你可以和他借一样多的书.
10. The new cars made loud noises and frightened them. 这些新汽车发出很大的噪音，让他们感到害怕。
make noises意思是：发出噪音，弄出生音；也可以用make a noise
例如： Don’t make noises, your father is sleeping . 不要弄出声音，你爸爸正在睡觉。
辨析：noise ，voice， sound
noise 指吵闹、喧哗声，往往是不和谐，不悦耳的声音
voice 多指人和动物的嗓音.
sound 指人所能听到的自然界中的一切声音
Please don’t make noises in class. 请不要在课堂上制造噪音。
She often talks in a low voice. 她经常小声说话。
Light travels faster than sound in the air. 在空气中光比声音传播的速度快。
11. Keep the dust off your shoes.合你的鞋子远离灰尘.
keep off (使)不接近;远离
Keep the children off.It's dangerous here! 别让孩子们靠近, 这儿危险!
12. The Kongming Lantern led to the invention of the hot-air balloon. 孔明灯引起了热气球了发明.
lead to 导致，引起. The mistake led to a big fire.
lead sb to sp.带领某人去某地 Please lead me to your school.
