2014九年級Unit-9_when_was_it_invented課件Section_A_4a-4cVIP

1、Unit 9When was it invented?Period 5 Section A 4a-4cReview vWhen was invented ?vIt was invented invWhat is it used for ?vIt is used for最糟糕的發(fā)明最糟糕的發(fā)明v “二十世紀(jì)最糟糕的發(fā)明是什么二十世紀(jì)最糟糕的發(fā)明是什么 ? ”就是人們每就是人們每天大量使用的塑料袋。天大量使用的塑料袋。 誕生于上個世紀(jì)三十年代誕生于上個世紀(jì)三十年代的塑料袋，其家族包括用塑料制成的快餐飯盒、的塑料袋，其家族包括用塑料制成的快餐飯盒、包裝紙、餐用杯盤、飲料瓶、酸奶杯、雪糕杯等包裝紙、餐

2、用杯盤、飲料瓶、酸奶杯、雪糕杯等等。這些廢棄物形成的垃圾，數(shù)量多、體積大、等。這些廢棄物形成的垃圾，數(shù)量多、體積大、重量輕、不降解，給治理工作帶來很多技術(shù)難題重量輕、不降解，給治理工作帶來很多技術(shù)難題和社會問題。和社會問題。 比如，散落在田間、路邊及草叢中比如，散落在田間、路邊及草叢中的塑料餐盒，一旦被牲畜吞食，就會危及健康甚的塑料餐盒，一旦被牲畜吞食，就會危及健康甚至導(dǎo)致死亡。填埋廢棄塑料袋、塑料餐盒的土地，至導(dǎo)致死亡。填埋廢棄塑料袋、塑料餐盒的土地，不能生長莊稼和樹木，造成土地板結(jié)，而焚燒處不能生長莊稼和樹木，造成土地板結(jié)，而焚燒處理這些塑料垃圾，則會釋放出多種化學(xué)有毒氣體，理這些塑料垃圾

3、，則會釋放出多種化學(xué)有毒氣體，其中一種稱為二噁英的化合物，毒性極大。其中一種稱為二噁英的化合物，毒性極大。fridge /frid/ n. 冰箱冰箱vI think a fridge is the most useful invention in modern world. translate /trnsleit/ v. 翻譯翻譯vShe is translating the words intovEnglish.vShe is a good translator.lock /lk/, /la:k/ v. 鎖上；鎖住鎖上；鎖住vHe is locking the car.vThese lock

4、s are strong.earthquake / :(r)kweik/n. 地震地震vDont be afraid of the earthquake.biscuit /biskit/ n. 餅干餅干vDont eat too much biscuit, it isnt good for your health.cookie/kuki/ n. 曲奇餅干曲奇餅干vDont eat so much cookie, because it is too sweet.instrument /instrumnt/ n. 器械；器械； 儀器；工具儀器；工具vThere are many kinds of

5、instruments in our school.New wordsvfridge /frid/ vn. 冰箱冰箱vtranslate /trnsleit/ vv. 翻譯翻譯vlock /lk/, /la:k/ vv. 鎖上；鎖住鎖上；鎖住 vearthquake / :(r)kweik/vn. 地震地震vsudden /sdn/ vadj. 突然（的）突然（的）vall of a sudden v突然突然; 猛地猛地 vbiscuit /biskit/ vn. 餅干餅干 vcookie/kuki/ vn. 曲奇餅干曲奇餅干 vinstrument /instrumnt/ vn. 器械；器械

6、； 儀器；工具儀器；工具根據(jù)漢語提示完成單詞。根據(jù)漢語提示完成單詞。 1. The boy lost his parents during the last years (地地震震).v2. The students were asked vto (翻譯翻譯) the story into English.v3. The police found the lost boy under the destroyed house through an (儀器儀器)。earthquaketranslateinstrumentv4. I only have some (餅干餅干) and a glass

7、 of milk every morning.v5. If you cant eat all these fruit , you may put some into your (冰箱冰箱). biscuits fridgeWhen was the zipper invented?It was invented in 1893.Who was it invented by?It was invented by Whit comb Judson.When was tea brought to Korea?It was brought to Korea during the 6th and 7th

8、centuries.What is the hot ice-cream scoop used for?Its used for serving really cold ice-cream. The passive voice 被動語態(tài)被動語態(tài) 語態(tài)是表示主語與謂語的關(guān)系的。如果語態(tài)是表示主語與謂語的關(guān)系的。如果主語是動作的執(zhí)行者，動詞要用主動語態(tài)；主語是動作的執(zhí)行者，動詞要用主動語態(tài)；反之，如果主語是動作的承受者，動詞就反之，如果主語是動作的承受者，動詞就要使用被動語態(tài)。要使用被動語態(tài)。 被動語態(tài)謂語部分結(jié)構(gòu)為助動詞被動語態(tài)謂語部分結(jié)構(gòu)為助動詞be + 過去分詞過去分詞。 一般過去時態(tài)的被動一

9、般過去時態(tài)的被動形式形式注意：注意：這里這里 be 的形式?jīng)Q定了被動語態(tài)的的形式?jīng)Q定了被動語態(tài)的時態(tài)，其后的過去分詞沒有變化。時態(tài)，其后的過去分詞沒有變化?？隙ň淇隙ň?主語主語 + waswere + 過去分詞過去分詞 + (by )否定句否定句 主語主語+ waswere not +過去分詞過去分詞 +(by )一般疑問句一般疑問句 waswere +主語主語+過去分詞過去分詞 + (by )?特殊疑問句特殊疑問句 疑問詞疑問詞 + waswere +主語主語 + 過去分詞過去分詞 + (by )?時態(tài)時態(tài)肯定形式肯定形式 否定形式否定形式疑問形式疑問形式一般一般過去過去時時S +was/

10、were+doneS +was/were+not + doneWas /Were+S + done?Maria bought the book last year. (主動句主動句)The book was bought by Maria last year. When was the book bought by Maria?What was bought by Maria last year?被動句：被動句：讓我們看一看各種句型的主動語態(tài)變?yōu)楸蛔屛覀兛匆豢锤鞣N句型的主動語態(tài)變?yōu)楸粍诱Z態(tài)時，到底發(fā)生了什么變化？動語態(tài)時，到底發(fā)生了什么變化？把下列句子改為被動語態(tài)。把下列句子改為被動語態(tài)。1.

11、 They made these computers in Shenzhen. These computers _ _ in Shenzhen.2. She bought a new bike yesterday. A new bike _ _ by her yesterday.were madewas bought1. I feel very happy that I _ to be the host. Congratulations! (07 江西江西) A. choose B. am chosen C. was chosen D. haven chosen 2. Today Chines

12、e _ by more and more people around the world. (07北京北京) A. was spoken B. is spoken C. spoke D. speak 3(課改實驗區(qū)考生做課改實驗區(qū)考生做) (07重慶重慶) Your hometown has changed a lot Yes. Take a look at these tall buildings. They _ last year A. build Bbuilt C. was built Dwere built (非課改實驗區(qū)考生做非課改實驗區(qū)考生做) Why is the classro

13、om so dirty? Sorry, sir. It _ yesterday We forgot to do it A. dont clean B. didnt clean C. werent cleaned D. wasnt cleaned再次閱讀翻譯語法句子vWhen was the zipper invented?vWho was it invented by?vWhen was tea brought to Korea? What is the hot ice-cream scoop used for?vIt was invented in 1893.vIt was invented

14、 by Whitcomb Judson. It was brought to Korea during the 6th and 7th centuries.vIts used for serving really cold ice-cream. 4a Rewrite the sentences using the passive voice. v1. They sold the fridge at a low price. vThe fridge was sold at a low price. v2. Somebody stole my camera from my hotel room.

15、v3. Where did you take these photos? My camera was stolen by somebody from my hotel room.Where were these photos taken by you ?v4. Our parents advised us not to go out alone. 5. Different writers translated the book into different languages. We were advised not to go out alone by our parents.The boo

16、k was translated into different languages by different writers.4b Complete the sentences with the correct forms of the verbs in the box. v1. You to the party last night, werent you? Why didnt you go?v2. The earthquake all vof a sudden, but luckily the villagers to a safe place.were invited came were

17、 brought v3. The door when we arrived, so we the bell.v4. The students not to eat or drink in class. But vRuby the rule vwhen she started eating a biscuit in science class. 5. The cookies by the hungry kids in less than 20 minutes. Then they for more!was locked rang were told broke were eatenasked 4

18、c Decide whether active or passive forms should be used in these sentences. Write the correct forms in the blanks vThe telephone (invent) by Alexander Graham Bell. He (born) in 1847. Alexander (work) on the invention of the telephone with Thomas Watson. In 1875, Alexander (learn) to send musical notes through an instrument similar to a telephone. was invented was born worked learned learntvFinally, the telephonev(invent) in 1876. The first sentence that (say)von the telephone by Alexander was “Mr. Watson, come here; I want to see you.” Today the telephone (use) ar