人教版九年级英语上册图片版作业课件：Unit 6 When was it invented (共83张PPT)

Smile to life! 笑对人生百态！
Sour, sweet, bitter, hot are all nutrition， 酸、甜、苦、辣皆是营养， success and failure are harvest. 成功、失败都是收获。
Let’s get more harvest !
.Try to make potato chips at home, and then
them? B: …
What harvest(收获)
do we have in this class?
We know how potato chips were invented. Potato chips _w_e_r_e_i_n_v_e_n_t_e_d_ by a cook called _G_e_o_r_g_e__C_r_u_m_.They were invented in 1_8_5_3_. The cook cut the potatoes really, really _t_h_in_ and then cooked them for a long time until they were c_r_i_s_p_y. Finally he put lots of _s_a_lt_ on them so they were r_e_a_ll_y s_a_l_t_y. And in this way, potato chips were invented _b_y_ m__i_s_ta_k_e_.
Listen again, complete the chart.
The History of Potato Chips
Who were potato chips invented by?

绿茶green tea 红茶black tea
Lusan yunwu tea;卢山云雾茶
Xinyang maojian tea;
信阳毛尖茶
Tie guanyin tea;铁观音茶
Wuyi rock tea;武夷岩茶
信阳毛尖Xinyang maojian
铁观音Tie guanyin
武夷岩茶Wuyi rock tea
An Accidental Invention
Task1. Read quickly and get the main idea of each paragraph.
Para. 1_________ ______________
Para. 2 _________
________________
Para. 3_________ _______________
Tea tasting ≠ Tea drinking
• The host will inject (注入） tea into teacup only seven tenths, and it is said the other three tenths will be filled with friendship and love.
In the 19th century
took place
Trade
Even though many people now know about tea culture, the Chinese are without doubt the ones who best understand the nature of tea.
the first
sentences and

9
2019/8/20
8
Words a n.英雄； /'hiərəu/, /'hirəu/ 男主角 adj.职业的；专业的 /prə'feʃnl/
not only…but also… look up to hero
professional
2019/8/20
n.冰箱
/fridʒ/
adj. 低的；矮的
/ləu/
pron.某人 n.重要人物 /'sʌmbədi/
v.翻译
/træns'leit/
v.锁上；锁住 n.锁 /lɔk/, /la:k/
n.地震
/'ə:(r) θkweik/
adj.突然（的）
/'sʌdən/
突2019然/8/20；猛地
doubt
without doubt fridge low somebody translate lock earthquake sudden all of a sudde6n
有道理
n.网站
/'websait/
n.先锋；先驱 /,paiə'niə/,/,paiə'nir/
v.列表；列清单
/list/
n.名单；清单
v.替代；说到
/'menʃn/
adj.意外的；偶然的 /,æ ksi'dentl/
偶然；意外地
adv.几乎；差不多 /'niəli/, /'nirli/
have a point website pioneer list
adj.国家的；民族的 /'næʃnəl/
n.贸易；交易
/treid/

( What do you want to be ? )
说说你认为最有用的中国古代四大发明是什么?介绍发 明者，何时发明的，有何用途等写一篇对话。可用下面 的语言结构： What’s the most useful invention? Who was it invented by? When was it invented ? What is it used for?
A: Wow, it’s really amazing!
Listen and answer questions.
1. Did gramma’s family have a telephone? Yes, they did. 2. Did gramma’s family have a car? Yes, they did. 3. Did gramma’s family have a TV? Why? No, they didn’t. Because the TV was expensive. 4. Did gramma’s family have a personal computer? No, they didn’t. Because the personal computer wasn’t invented at that time.
B: I think it __w_a__s_i_n_v_e_n_t_e__d_ in Han Dynasty.
(汉朝)
A: What ___is___ it _u__s_e_d_ for?
B: A:
G__u_Ie_ss_s!_
it
___u_s_e_ dfor
holding
water?
B: No. It ___is__ __u_s_e_d_ for testing earthquakes.

O Cathy cut the cheese into pieces and put them on the plate.
O The cheese _w__a_s_ __cu__t _ into pieces and _p_u_t___ on the plate by Cathy.
【解析】答案：was cut; put。做此类题的时候 一定要先关注时态，从原句“cut 和put”可以
O Mary was seen to help that old man by her teachers last weekend.
O Mary’s teachers _s_a_w__ her _h_e_lp_____ that old man last weekend.
【解析】答案：saw… help。该题考查的是特殊 动词的主动和被动语态的转换。做此类题一要 注意主动语态中要省略to，二要注意在原句中 的时态，并及时进行相应时态的动词变化。
主动：The boss made the workers work 12 hours a day. 被动：The workers were made to work 12 hours a day by the boss.
主动：We often hear the blind boy practice the piano. 被动：The blind boy is often heard to practice the piano.
推出该句为过去时，（ ？）再根据时态进行被
动语态的变换。
you forget me , people won’t know who has done that thing. So, in Chinese,
I am called “被”.

hot ice-cream scoop _s_e_r_v_in__g_ really cold ice-cream
. They are used for seeing in the dark. be used for doing sth.表示“被用来做
某 事”。与be used to do sth. 同义e.g. is used to control/ is
how often 多久，多常
此外，how often经常用来提问某动作或状态 发生的频率。
日常生活
daily life
【有关think的短语】
think of 考虑, 记起, 认为
.think about 表示“考虑 想起” think sth. over 仔细考虑, 认真思考 think sth. out 想通, 想出
the style of a skirt
n. 样式; 款式
Words and
Expressions
heel n. 脚跟；足跟 scoop n. 勺；铲子 electricity n. 电；电能 style n. 样式；款式 project n. 项目；工程 pleasure n. 高兴；愉快 zipper n. 拉链；拉锁
places.
(2010 江苏省盐城市)
A. is passed
B. passes
C. had passed D. was passed
1. Review the new sentences and expressions.
2. Finish the exercise book 3. Recite 2d
It was invented in… I think … is invented before/after… 3. What is/are … used for? It is/they are used for ....

1e Make a conversation about the invention of potato chips. Use the information in 1c and 1d.
A: Did you know potato chips were invented by mistake? B: Wow, I didn’t know that. Who invented them? A:...
1a The words in the box describe how food can taste. Write them under the correct pictures. Some pictures have more than one word.
sweet crispy salty sour
1d Listen again. Complete the sentences.
The History of Potato Chips Do you know how potato chips were invented? Potato chips _w_e_r_e_i_n_v_e_n_t_e_d_by a cook called George Crum. They were invented in _1_8_5_3_ . George Crum cut the potatoes really, really __th_i_n__ and then cooked them for a long time until they were _c_r_is_p_y__. Finally he put lots of salt on them so they were _r_ea_l_l_y_s_a_lt_y_.

A. at once
B. on time
C. by mistake
D. in all
2. The high-speed railway __C____ in this city last year. It is easier for people to
travel now.
A. will build
B. will be built
C. was built
D. built
Exercises
二、按要求改写句子
1. He sent an email to Mary last night.（改为被动语态） An email _w__a_s_ _se_n_t___ to Mary ___b_y__ _h_i_m____ last night.
1. Potato chips were invented by mistake. 2. They were invented in 1863. 3. The customer thought the potatoes were not thin enough. 4. The customer said they were not salty enough. 5. George wanted to make the customer happy. 6. The customer was happy in the end.
Wow, I didn’t know that. Who invented them?
Exercises 一、单选
1. — Excuse me, sir. Are you sure the umbrella in your hand belongs to you?

He does daily exercises to help control his weight.他为控制体重而 每天坚持锻炼。
拓展:daily还可作副词,意为“每日;天天”;也可作名词,意为“日报”。 The bakery serves us with fresh bread daily. 面包店每天都给我们提供新鲜面包。
[解读1] 助动词do在本句中表示强调。seem to do sth.意为“好像 做某事”。
[解读2] have a point 意为“有道理”。
I admit (that) you have a point. 我承认你有理。
6
单元知识导览
教材要点解读
单元语法突破
Section A Section B
[解读1] without doubt意为“无疑地;确实地”。 He is,without doubt,the greatest golfer in Japan. 毫无疑问,他是称霸日本的高尔夫球手。 Without doubt,she is the best nurse in the hospital. 她无疑是那家医院最优秀的护士。
单元知识导览
教材要点解读
单元语法突破
29
单元知识导览
教材要点解读
单元语法突破
Section A Section B
9.They sold the fridge at a low price.(教材P44)他们以低价来卖 那台冰箱。
[解读] low形容词,意为“低的;矮的”,用来指物,其反义词为high。 In winter the river is very low. 冬季里河水非常浅。
19
Section A Section B

Do you know what these inventions are used for? Have you ever made any designs to make life better?
3a
Think of something that you do not like to do. Then think of an invention that could help you. Make notes.
Problem: _q_u_ic_k_l_y__ta_k_i_n_g_n__o_te_s_i_n__cl_a_s_s New invention: _a_s_p_e_c_i_a_l _p_e_n_________ What it is used for: _t_a_k_in__g_n_o_t_e_s_q_u_i_c_k_ly__in__c_lass
What is made of
?
What does it look like
?
What special things does it have
?
How can it help you
?
Writing
End
I have never worried about my…, since I had this… Nowadays, it has become so popular in the world and a lot of people like to use it. It has made great contribution to the progress of the society.
二、根据汉语意思完成句子
1. 人们相信他就是发明那个新型机器的人。