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1、新目标 九年级 Unit 9,Unit 9 When was it invented? Section A Period 2,Pairwork (3a:P70),Helpful inventions: vacuum cleaner, soundproof door and window, car, computer, fax machine Annoying inventions: air-conditioner, truck, telephone, junk food, ice cream,Sentence pattern: What is this in the picture? What
2、 is it used for? Do you think it is helpful / annoying?,Dialogue 1: A: What is this?,B: It is an alarm clock. A: What is it used for? B: It is used for waking people up in the morning. A: Do you think it is annoying? B: Sometimes, when I want to go on sleep.,Dialogue 2: A: What is this?,B: It is a l
3、ight bulb. A: What is it used for? B: It is used for giving light. A: Do you think it is helpful? B: Yes, I think so. Because I always do homework and read books in the evening by its light.,Dialogue 3: A: What is this?,B: It is a microwave oven. A: What is it used for? B: It is used for heating col
4、d food and cooking meals. A: Do you think it is helpful?,B: Yes, I think so. Because my parents are very busy and I can use it to cook meals by myself.,Dialogue 1: A: What do you think is the most helpful invention? B: I think the most helpful invention is the vacuum cleaner.,Pairwork (4:P70),A: Why
5、 is that? B: Well, it can help me clean the floor when mother asks me to do the cleaning.,Dialogue 2: A: What do you think is the most annoying invention? B: I think the most annoying invention is the air-conditioner. A: Why is that?,B: Well, I feel uncomfortable in the room with an air-conditioner.
6、,A: What do you think are the most annoying or helpful inventions? B: I think the truck is the most annoying invention and the soundproof door and window is the most helpful invention.,Dialogue 3:,soundproof door and window,A: Why is that? B: The trucks always make noises and people cant sleep well.
7、 If they have the soundproof door and window, people neednt worry about the noises anymore.,Groupwork (4: P70),What would you do if you are alone on a tiny island?,A: Id like to have some matches because I could light a fire to keep warm. B: Yes, but thats not going to help you leave the island. I t
8、hink it would be better to have a cell phone.,Dialogue 1:,A: Id like to have a telescope because I could look far. B: Yes, but thats not going to help you leave the island. I think it would be better to have a signal lamp.,Dialogue 2:,1. Who invented the _ ? 2. Mrs Brown bought a new _ last week. 3.
9、 Id like a pair of _ . 4. The _is the most helpful invention. 5. There are three small _ in the radio.,根据图片提示，在横线上填入适当的单词完成句子，每空一词。,1题图,2题图,3题图,4题图,5题图,calculator,microwave oven,slippers,light bulb,batteries,根据括号内要求完成句子，每空一词。 1. Cars were invented in 1885. (对划线部分提问) _ were cars invented? 2. Julie Th
10、ompson invented electric slippers. (改为被动句) Electric slippers _ Julie Thompson.,When,were invented by,3. We all noticed her face turn red. (改为被动句) Her face _ turn red by us all. 4. The light bulb was invented by Tomas Edison. (对划线部分提问) _ the light bulb invented by? 5. The refrigerator is used to keep
11、 food fresh. (改为同义句) The refrigerator is used _ food fresh.,was noticed to,Who was,for keeping,1.We use the _to count. The calculator_ 2.We use _to make the food hot. The microwave oven_ _,calculator,is used for counting.,the microwave oven,用合适的词填空。,is used for,making the food hot.,3. The _is used f
12、or _. (talk with people) 4. Who_ light bulbs_ by? 5. The computer_ 1976.,talking with people,telephone,were,invented,was invented in,汉译英。 1）计算机是何时发明的？ 2）谁发明了计算机？ 3）计算器是用来做什么？ 4）你认为什么是最有用的发明？ 5）每天它能够给人们更多时间工作和玩。,1. When was the computer invented?,2. Who was the computer invented by?,3. Whats the calc
13、ulator used for?,4. What do you think is the most helpful invention?,5. It gives people more time to work and play every day.,1. I open the door.,The door is opened by me.,2. He often helps homeless people.,Homeless people are often helped by him.,3. I handed out some papers just now.,Some papers were handed out by me just now.,主动语态:主语是动作的执行者。 被动语态:主语是动作的承受者。 被动语态结构为：,(主动语态),(主动语态),(主动语态),(被动语态),(被动),(被动语态),be+过去分词,将下列句子变为被动语态。,Thank you for listening!,