Unit 6 Section B 1a-1e 课件 2025-2026学年人教版（2012）九年级英语全册

Unit 6 When was it invented? Section B 1a~1e 1.Both your name and my name___________________(mention) by Miss Wang yesterday. 2.We couldn't enter the house because the door ____________(lock) and we lost the key. 3.I bought the book_____a low price. 3.This kind of the bottle cap_________by accident. A.invent B.invented C.is invented D.was invented 4.They have collected more than 14,000 books since the library_______last month. A.built B.was built C.builts D.is built were mentioned was locked D B at What kind of food do you like? Warming up Sweet food ice-cream candy salty food potato chips salted eggs Sour food lemon Crispy food biscuit cookie 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 __________ _____ _____ _____ crispy salty sour sweet salty 1a 1. salty 咸 的 ►The soup is a little salty for me. 汤对我来说有点咸了。 名词+后缀-y构成的形容词： luck—lucky health—healthy wind—windy rain—rainy taste — tasty ice —icy snow —snowy sun—sunny Exercises: 1. He was so______that he caught the last bus. A. luck B.lucky C.unluck D.unlucky 2. Vegetables are ______. They are good for our_____. A. health;healthy B.healthy;health C. health;health D.healthy;healthy B B Listen and circle T for true or F for false. Potato chips were invented by mistake. T F 2. They were invented in 1863. T F 3. The customer thought the potatoes were not thin enough. T F 4. The customer said they were not salty enough. T F 5. George wanted to make the customer happy. T F 6. The customer was happy in the end. T F 1c 1.by mistake 错误地;无意中 make a mistake (in...) (在某方面)犯错误 2.in the end=at last=finally 最后；最终 拓展： at the end of +时间 “在....结束时” +地点 “在....尽头” by the end of “在....结束前” Listen again. Complete the sentences. The History of Potato Chips Do you know how potato chips were invented? Potato chips ______________by a cook called George Crum. They were invented in _____ . George Crum cut the potatoes really, really ______ and then cooked them for a long time until they were _______. Finally he put lots of salt on them so they were __________. were invented 1853 thin crispy really salty 1d Don’t drink the soup. It smells _____. A. nice B. delicious C. salty D. terrible 2. About over 80 years ago, Mickey Mouse first appeared in the cartoon. A. more than B. less than C. at most D. at least D A 当堂检测 3. Miss Wang divided her students _____ two groups. A. for B. into C. at D. from 4. I took the wrong train ______. I didn’t even know it until half an hour later. A. by mistakes B. by mistake C. with mistake D. with mistakes 5. I found the key ______ when I was cleaning the room. A. with accident B. by accident C. with mistake D. by mistake B B B 6. Who else ______ to the party besides you yesterday? A. will invite B. is invited C. was invited D. was inviting 7. ______ the classroom ______ by the students this morning? A. Was; cleaned B. Is; cleaning C. Was; cleaning D. Did; clean C A 8. The machine is used ____making shoes ____ the workers. A. as; for B. for; as C. by; for D. for; by 9. It is said that one university____ Greater Bay Area(大湾区) will be built in Guangdong in the future. A. names B. named C. is named D. was named 10. His car______ five years ago, but it looks quite new. A. buys B. bought C. is bought D. was bought D B D 1. Now computers are widely used in our ______ (day) lives. 2. The soup is very _______ (salt) because my mother put lots of _____ (salt) on it. 4. Since then, the ___________ ( popular ) of basketball has risen quickly. 5. I have worked here for _______(near) two years. II.用所给词的适当形式填空。 daily salty salt popularity nearly Pre-writing How many inventions have been mentioned in this unit? In fact, inventions are everywhere in our life. Pre-writing 20 3a Think of something that you do not like to do. Then think of an invention that could help you. Make notes. • Problem: __________________________ New invention: __________________ What it is used for: __________________ quickly taking notes in class a special pen taking notes quickly Pre-writing 21 Imagine you are a business person. Write a description of your new invention. Try to sell the invention to the class. Pre-writing 3b 3 4 1 5 who how color,shape,size,use what why invention How to introduce an invention 2 when 22 The special pen Who/When: be made by________in___________ Shape/Color/Size: long/short/colorful/white/pink/big/small Why: do my homework quickly / take notes quickly / help correct the mistakes What: take notes quickly/ without mistakes/can change the color / be warm in winter and be cool in summer How to introduce an invention An interesting invention While-writing There are many modern inventions in our daily life.And today I want to introduce a new invention-____________. ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ Without doubt, I think it is my best invention.I hope that it can be widely used in the future. An interesting invention While-writing There are many modern inventions in our daily life.And today I want to introduce a new invention-____________. It is made by______in______.I think it can be widely used in our daily life. I came up with the idea because _________. It is in the shape of ________and it has _________ colors. If you have this pen, it will be very convenient / helpful / comfortable to_________________.It can not only____________ but also_________________________. Without doubt, I think it is my best invention.I hope that it can be widely used in the future. Thank You! 69092.805 67499.18 $