2019-2020年九年級英語 Unit 9When were they invented教案 人教新目標版一、學(xué)習(xí)目標：掌握一般現(xiàn)在時、一般過去時和含有情態(tài)動詞的被動語態(tài)的用法。二、語法介紹：英語中動詞的語態(tài)分成兩種：主動語態(tài)和被動語態(tài)。當(dāng)句子的主語是動作的執(zhí)行者時，謂語的形式叫主動語態(tài)；當(dāng)句子的主語是動作的承受者時，謂語要用被動語態(tài)。含義：動詞的被動語態(tài)一般譯成“被”，但是根據(jù)漢語表達習(xí)慣，有時“被”也可以不譯出。構(gòu)成：被動語態(tài)一般的構(gòu)成形式為:be+動詞過去分詞（+by+動作的發(fā)出者）。其中助動詞be有人稱、數(shù)和時態(tài)的變化。一般現(xiàn)在時:am/is/are+done(過去分詞)一般過去時：was/were+done(過去分詞)含有情態(tài)動詞的：情態(tài)動詞+be+done(過去分詞)方法：1、將主動語態(tài)句中的賓語變?yōu)楸粍诱Z態(tài)句中的主語，主動語態(tài)句中的主語變?yōu)楸粍诱Z態(tài)句中介詞by的賓語。2、將主動語態(tài)句中謂語動詞變成:助動詞be+該動詞的過去分詞，但時態(tài)不改變。3、助動詞be要與新的主語保持單、復(fù)數(shù)一致；若主語和賓語是人稱代詞時，“格”應(yīng)作相應(yīng)的變化?？谠E：賓變主，主變賓，謂變be done時不變，數(shù)格必須隨著變。The workers make machines in this factory.Machines are made by the workers in this factory. 注意：不及物動詞沒有被動語態(tài)。 例句：1.Many people speak English in China.English is spoken by many people in China.2.Bell invented the telephone in 1876.The telephone was invented by Bell in 1876.3.We must look afer the old man.The old man must be looked after (by us).特殊情況：（含有雙賓語的句子變被動語態(tài)）剖析：含雙賓語的主動語態(tài)的句子變?yōu)楸粍诱Z態(tài)時，常把那個指人的間接賓語變?yōu)楸粍诱Z態(tài)的主語；也可把那個指物的直接賓語用作主語，但此時必須在間接賓語前加上介詞to或for。如：He gave me a book.I was given a book by him.A book was given to me by him. 口訣：如遇雙賓語，一般變間賓。若把直賓變，to,for間賓連。感官動詞和使役動詞在主動句中其后的動詞不定式不帶to，但變被動句時必須加上to。如：The boss made her work for 16 hours a day.She was made to work for 16 hours a day. 口訣：感/使動詞真叫怪，to來to去記心懷，主動語態(tài)to離去，被動語態(tài)to回來。 三、對應(yīng)練習(xí)：選擇填空1. The children _ by the nurse.A. were lookedB. looked after C. were looked after D. looked2.The lab _ about five years ago.A. was builded B. was built C. builds D. has been built3.The glass _ . It _ by little Tom this morning.A. broke, is broken B. is broken, was brokenC. was broken, broke D. has been broken, broken 4.I _the way to the railway station by a policeman.A. was shown B. showed C. have shown D. was showing When water_ , it will be changed into vapour.A. is heated B. heating C. has heated D. heats 5.We cant enter the room because its door_ .A. locked B. locks C. is locked D. is locking 6.They _day and night.A. are made work B. are made to workC. made to be worked D. are making to work 7.Changan Road is _of people.A. filled B. fill C. full D. fulled 8.This English song _ often _ by the children.A. is, singing B. is, sung C. will, sing D. was, sung 9.The windows of our house _once a week.A. must clean B. have cleaned C. is cleaned D. are cleaned 10.When _ the Peoples Republic of China_ ?A. was, found B. was, founded C. did, found D. does, found11. Marys radio _ by my brother just now.A. will be mended B. has mended C. was mended D. mended12. Your exercise books _ after class.A. will hand in B. must hand in C. handed in D. must be handed in 13.The sun _ at night as usual.A. can be seen B. cant see C. cant be seen D. doesnt see 14.Rice _ also _ in their hometown.A. isgrown B. isgrew C. wasgrew D. wasgrown 15.He _ by the teachers.A. is always praised B. praisesC. have been praised D. always is praised 把下列句子變成被動語態(tài)1. You can find a lot of differences between the two languages. 2. Do you water your flowers every day? 3. The wind blew down the big tree last night. 4.Nobody knew me in this town at that time.5.We planted many trees in our school last week.6.Do people grow cotton in North China?7.Who invented the light bulb?8.Did they find the missing key yesterday?9.We heard someone sing in the next room.10.She drew them a picture yesterday.