2015年秋 市優(yōu)質(zhì)資源評比優(yōu)秀作品 九年級上冊 Unit 4 Amazing Science.ppt

1、Unit 4 Amazing ScienceTopic1 When was it invented?制作學(xué)校：實驗中學(xué)制作學(xué)校：實驗中學(xué) 修訂人：修訂人： 韓慧靈韓慧靈1.復(fù)習(xí)掌握語法被動語態(tài)，并能用之去做題。2.復(fù)習(xí)并背誦一些功能句。 3.通過閱讀短文，理解什么是GPS定位系統(tǒng)及其在生活中的應(yīng)用。 學(xué)習(xí)目標(biāo)自學(xué)指導(dǎo)11.自學(xué)內(nèi)容：課本87頁Grammar。2.自學(xué)方法：背誦、觀察、總結(jié)。3.自學(xué)時間：5分鐘4.自學(xué)要求：背誦并觀察句子，然后總結(jié)出被動語態(tài)的構(gòu)成規(guī)律，并能用之去做題。Grammar Passive Voice ()The radio was invented by Guglie

2、lmo Marconi in 1895.When was the digital camera developed ?Where was it developed?What is a rocket used for?It was developed in the 1970s. It was developed in Japan.It is used for sending satellites or spaceships into space. Passive voice was /were +done( ) 1. A big supermarket _in our city last yea

3、r. A. is built B. were built C. was built ( ) 2.Could you tell me who the radio _ by? A. invents B. invented C. was invented( ) 3. Many trees and flowers _ in our school last year. They made our school more beautiful. A. have planted B. were planted C. planted( ) 4.The children _ swim last month and

4、 they can swim very well now. A. are taught B. were taught C. were taught to( ) 5.It is said that potato chips _by mistake about one hundred years ago. A. were invented B. invented C. are inventedCBCAC自學(xué)檢測自學(xué)檢測1自學(xué)指導(dǎo)自學(xué)指導(dǎo)2自學(xué)內(nèi)容：課本自學(xué)內(nèi)容：課本87頁頁Functions.自學(xué)方法：背誦。自學(xué)方法：背誦。自學(xué)時間：自學(xué)時間：3分鐘分鐘自學(xué)要求：能夠熟練掌握這些句子自學(xué)要求：能夠

5、熟練掌握這些句子.Functions I wish I could go into space some day. I hope your dream will come true. Its said that he invented more than two thousand things during his life. Inventing is interesting and exciting and everyone can be an inventor. 自學(xué)檢測2 I I could go into space some day. I your dream will come t

6、rue. he invented more than two thousand things during his life. Inventing is interesting and exciting and everyone . wishhopeIts said thatcan be an inventor自學(xué)指導(dǎo)自學(xué)指導(dǎo)3 3自學(xué)內(nèi)容：課本自學(xué)內(nèi)容：課本87頁的短文。頁的短文。 自學(xué)方法：掃讀。自學(xué)方法：掃讀。自學(xué)時間：自學(xué)時間：3分鐘分鐘自學(xué)要求：通過理解生詞和短語，能夠回答自學(xué)要求：通過理解生詞和短語，能夠回答88頁的問題。頁的問題。 1. How did the early exp

7、lorers know where they were? They found out where they were by using stars. 2. Whats the disadvantage of using the stars as guiding marks? Its disadvantage is that it didnt work well when the weather was bad and the stars could not be seen. 3. What is a GPS? Is it useful to use? It is like a man-mad

8、e star. We can use it at any time, in any place and in any weather to find out our position. It is very useful. 4. What do you think the GPS will be used for in the future? 自學(xué)檢測自學(xué)檢測3Key words:explore, explorer, mark find out, indirection work well, as long asthe rest of the timesolve, like, use, the

9、 shape of great invention要點歸納要點歸納n.標(biāo)示，記標(biāo)示，記號，符號號，符號 v.做記號，做記號，做標(biāo)記做標(biāo)記根據(jù)首字母提示，完成短文。 Thanks to GPS, we can exactly know w _we are now. GPS is like a man-made “star”. It can be u_ in any place and any weather condition to find out our p_. In the past, the early explorers had to use stars in the s_ to te

10、ll them where they were, however, this method didnt work well when the weather was bad. So GPS is a great invention that can help humans to better e_ our planets.hereositionsedkyxplore強化練習(xí)：強化練習(xí)：We Learn: 1. Some words : mark, explorer 2. Some phrases: find out, in , direction, as long as, work well,

11、 the rest of the time, be used to, the shape of 3. Some sentences: This method worked well at night as long as the weather was good and the stars could be seen.We can: 1. Use the passive voice of the simple past tense more properly. 2.Talk about new technology GPS. 3. Develope our imagination and cr

12、eativity by designing our own inventions.知識小結(jié)知識小結(jié)( ) 1.Hurry up, you _ on the phone. A. WantedB. was wanted C. are wanted( ) 2. Some stories _the children by the teacher everyday. A. is told forB. are told for C. are told to( ) 3._that he has studied abroad for five years. A. It is saidB. It says C.

13、 That is said ( ) 4.The window _ five minutes ago. A. is cleaned B. was cleaned C. can be cleaned( ) 5.The children _by the teachers at school. A. take care of B. are taken care C. are taken care of C CABC當(dāng)堂訓(xùn)練( ) 6. I have no idea what _while I was asleep. A. happened B. was happened C. happens( ) 7. In some countries, tea _before meals. A. is servingB. is servedC. served( ) 8. This kind of books _well. A. doesnt sellB. isnt selli