九年級英語Unit4 Topic 2 Section D 1課件仁愛版Unit 4 Topic 2 Section D

Unit 4 Topic 2 Section DTeaching aims and demands 1. Learn useful expressions: as long as, in short2. Sum up the simple past passive voice.3. Talk about new technology and inventions.REVIEW When was the car invented? It was invented in 1904. Where was it invented? It was invented in Germany. When was the MP3 invented? The MP3 was invented in 1998. Where was it invented? It was made in Korea. PRESENTATION Listen to the tape to learn a passage about GPS. Please read after it. 1. What would you do if you lost your way in a forest? I would watch the stars or use GPS.2. How did the early explorers know where they were? They used the stars to know where they were. Read it again, then answer the question.3. What is GPS? Is it useful to us? GPS is a Global Positioning System. Its useful to us. 4. What do you think GPS will be used for in the future? It can be used to study the shape of the earth. KNOWLEDGE 1. in direction 按按/朝朝方面方面, 如如:These old tombs were lined in the sane direction. 這古墓是按同一個方向這古墓是按同一個方向排的排的. That motor bike hit a truck coming in the opposite direction. 那輛摩托車撞上了一個輛迎面南明來那輛摩托車撞上了一個輛迎面南明來的卡車的卡車.2.work (well)奏效奏效,起作用起作用,產(chǎn)生影響產(chǎn)生影響,如如:The medicine worked well .藥物奏藥物奏效了效了.The plan works well.這項計劃執(zhí)這項計劃執(zhí)行得好行得好.3.lose ones way =get lost =be lost 迷路迷路.如如: We lost our way there ,so we had to ask a policeman for help.在那兒我們迷在那兒我們迷了路了路,所以只好向警察求助所以只好向警察求助.4. as long as 意思為只要意思為只要, 如如: You can go out to play as long as you stay in the backyard. 只要你不出后院只要你不出后院, 你可以到你可以到室外玩室外玩.As long as 放在時間段的前面放在時間段的前面,表示長達表示長達, 相當(dāng)于相當(dāng)于for, 如如: I have taught English as long as nine years. 我已經(jīng)教英語我已經(jīng)教英語9年了年了.PRACTICE 1. be made of / from / in / by 2. be used for doing something3. come true4. It is said that 5. DNA is the same in every part of your body. 6. be similar to7. No one knows for certain. GRAMMAR FOCUS 一般過去時的被動語態(tài)一般過去時的被動語態(tài).一般過去時的被動語態(tài)一般過去時的被動語態(tài): 基本形式基本形式: be的過去式的過去式 was/were + 及物動詞的過去及物動詞的過去分詞分詞. 如如: when was it made?1. 陳述句陳述句: was/were + 過去分詞過去分詞. The PRC was founded in 1949.2. 疑問句疑問句: Was/Were + 主語主語 + 過去過去分詞分詞+ ? Was it made in China? Where was the computer made?3. 否定句否定句: was +not / were + not + 過去分詞過去分詞 Her books werent stolen yesterday.EXERCISE ( ) 1 .Please pass me another cup. This one_. A. is broken B. is breaking C. broke D. broken( ) 2 .The story books_ by the writer in the 1960s. A. are written B. were written C. are writing D. were writingAB( ) 3. What time _ the door _ every day? A. does; closed B. does; close C. is; closed D. /; close( ) 4 Can he _ himself? A. get dress B. get dressed C. gets dressed D. instead of( ) 5 He fell from his bike and _.A. is hurt B. gets hurt C. got hurt D. hurt C CB C( ) 6 Lookout, please keep away from the fire, or your trousers will_A. burnt B. burn C. burning D. get burnt ( )7 The apple_ very sweet.A. is tasted B. taste -C. tastes D. are tasting ( ) 8 You_ more beautiful in the light blue shirt.A. see B. watch C. look D. look atDC C1. 早期的探險者發(fā)現(xiàn)天上的星星是很早期的探險者發(fā)現(xiàn)天上的星星是很好的路標(biāo)好的路標(biāo).The early explorers found that the stars in the sky were good landmarks. 2. 利用星星利用星星, 人們就能發(fā)現(xiàn)他們在哪人們就能發(fā)現(xiàn)他們在哪, 他們正在朝哪個方向走他們正在朝哪個方向走.Using the stars ,they could find out where they were and in which direction they were going.3. 但在其余時間里但在其余時間里, 這種方法就不適用這種方法就不適用了了.But it didnt work so well during the rest of the time. 4.你認為將來全球定位系統(tǒng)將被用來你認為將來全球定位系統(tǒng)將被用來做什么做什么? What do you think GPS will be used for in the future.