仁爱科普版九年级上册Topic 1 When was it invented?优质ppt课件

这是一份仁爱科普版九年级上册Topic 1 When was it invented?优质ppt课件，共21页。PPT课件主要包含了 printing，compass，gunpowder，important，detailed，test，name，share，invention，crayons等内容，欢迎下载使用。
By the end f the class, yu will be able t1. Master the fllwing wrds, phrases and sentences:Wrds： inventin, crayn, thught, silly, balln, gun, rbt, keybardPhrases: laugh at, cme abut, the result f …, nne f … Sentences：Inventing is interesting and exciting and everyne can be an inventr. 2. Talk abut the prcess f an inventin.3. Write a passage abut an inventin.
The Fur Great Inventins in China
paper-making
What are these?
Wrk in grups and discuss the questins befre reading. Then read and check.1. What is an inventin?2. List sme inventins that yu knw and their inventrs.3. D yu think yu can be an inventr? Why?
1a Read and understand.
An inventin may be a new prduct r a new way f ding things. Inventins cme abut in many ways. Mst f the time, inventins happen because smene wrks t slve a prblem. Smetimes inventins are the result f accidents. Lk at yur schlbags. Yu have pencils, pens, crayns, rulers and sme bks. Nne f these things was planted in fields. They were made in factries and invented by smene. Inventing is interesting and exciting and everyne can be an inventr. D yu want t be an inventr? There are a few simple steps t fllw in the inventin prcess.
_____ Yu can have wild and crazy thughts. Remember that n idea is t silly. Many peple laughed at the Wright brthers and said they wuld never fly. But they weren’t discuraged by what peple said. That’s why nw we have planes._____ Careful planning is imprtant in the inventin prcess. This is the time t brainstrm fr ideas and t evaluate them. _____ Make a detailed drawing f yur inventin s thers will understand hw yur inventin wrks. Make a mdel f yur inventin. _____ See if yur inventin wrks as it is planned. If nt, d mre research, redesign it, and test it again. _____ Every inventin needs a name. Share yur inventins with thers.
A. Draw yur inventin. B. Name yur inventin. C. Test yur inventin. D. Use yur imaginatin. E. Plan and design yur inventin.
1b Read and put the sentences in the crrect places.
When yu want t have an inventin , first yu must use yur ___________. Then yu shuld plan and design it. Careful planning is very _________ in the inventin. Third, yu shuld make a _______ drawing f yur inventin and make a mdel f it. If yu want t make yur inventin mre successful, yu must _____it again and again. After that, yu _______ yur inventin. Last, remember that yu shuld _______ yur inventin with thers.
1c Read 1a again and fill in the blanks.
1. cme abut出现，发生Hw did this dangerus situatin cme abut?这样危险的局面是怎样出现的？2. slve a prblem解决一个问题slve & answerslve的宾语多为prblem, answer的宾语多为questin。
3. n ne和nne都表示否定，但用法有所不同，它们的区别是：a. n ne用来指人，含有nt even ne（连一个人也没有）之意，其后不能接f短语。用作主语时，谓语动词要用单数。N ne knew wh tk the bk by mistake. 没有人知道谁误拿了这本书。N ne likes a persn with bad manners. 谁也不喜欢不讲礼貌的人。—Wh is in yur classrm nw? 谁现在在教室里？—N ne. 没有人。
b. nne不仅指人也可指物，其后常接f短语，构成“nne f+名词/代词”结构。当名词是复数时，谓语动词单复数均可。Nne f the huses has/have a large garden in sme big cities. 在一些大城里，没有一幢房子带有大花园。—Hw many peple are there in yur classrm nw? 现在你班里有多少人？—Nne. 没有人。
4. Inventing is interesting.发明是有趣的。此处inventing是动名词作主语，动名词作主语。谓语动词用单数形式。5. in the inventin prcess在发明过程中
2 Discuss with yur partner which f the fllwing are the tp 3 mst imprtant inventins and which is the least imprtant inventin. Then explain yur chice t the class.
candycmputermedicineballngunrbt lck scissrs spaceship zer chpsticks light bulbkeybardtelevisinX-ray machine
Example: I think zer is the mst imprtant inventin. It is said that it was invented by an Indian. It is a very interesting number. Fr example, I have nly ten yuan. If yu add five zers after it fr me, haha, I will be a rich man.
3 D yu knw hw t be an inventr? D yu want t invent smething? Write a passage abut yur inventin. The fllwing questins may help yu .
1. Hw d yu cme up with the idea f yur inventin? 2. What des it lk like?3. What is it made f/frm?4. What’s it used fr?5. What are yu ging t name it?
Befre writing, think mre clearly and tell abut the lks, uses, advantages and disadvantages f an bject.
一、单项选择( ) 1. The stars _____ as sn as it was dark. A. came dwn B. came in C. came ut( ) 2. Can yu tell me hw the accident _____? A. came dwn B. cme abut C. came abut( ) 3. —Hw many children did yu see in the park yesterday? —_____. A. Nne B. Little C. N ne ( ) 4.—Wh knws the answer t the questin? —_____. A. Little B. A little C. N ne
一、单项选择( ) 5. —Have yu sent yur parents and grandparents an email telling them yu arrived safe? —N. _____ f them can use a cmputer. A. Nne B. Bth C. Neither ( ) 6. N ne but the Whites _____ the place s far. A. visit B. has visitedC. have visited
二、根据括号内所给提示完成句子1. Fax machines were a wnderful __________(invent) at that time.2. I have bught many ________(crayn) fr my daughter.3. He was killed by a _____ (gun) in the war.4. These cars were built by ______ (rbt) in that factry.5. Many children like blwing ________(balln).
三、按要求完成句子1. Peple used the light bulbs widely in the past. (改为被动语态） The light bulbs ______ ______ _______ by peple in the past.2. We can launch spaceships t explre ther planets. (改为被动语态） Spaceships ______ ____ _________t explre ther planets. 3. Gre Verbiniski directed the mvie Pirates f the Caribean in America . (对划线部分提问） _______ ______ Gre Verbiniski ________ the mvie Pirates f the Caribbean? 4. The MP3 player was develped arund 1998. (对划线部分提问) ________ ________ the MP3 player _______________?
were widely used
can be launched
Where did
When was
1. Talk abut the prcess f an inventin.2. Write a passage abut an inventin.
1. Sme wrds: inventin, crayn, thught, silly, balln, gun, rbt, keybard2. Sme phrases: laugh at, cme abut, the result f …, nne f … 3. Sme sentences: Inventing is interesting and exciting and everyne can be an inventr.