Unit 4 Grammar 课件 2025-2026学年译林版九年级（2012）英语上册

Unit 4 Growing up Grammar It's been a long day without you my friend. And I'll tell you all about it ____ I see you again. We've come a long way where we began. Oh I'll tell you all about it ____ I see you again. _____ I see you again. when when When 时间状语从句 Enjoy a video 常见引导词： before, after, when, while, since, till/until, as soon as, whenever Time clause e.g. When the weather is good, my grandpa likes going fishing. The sun came out after the storm stopped. 时间状语从句是指在复合句中充当时间状语的句子。 Presentation Grammar A Presentation e.g. Close the windows before you leave the room. I went to school after I finished my breakfast. before & after 强调动作的先后关系。 before: 在...之前 after: 在...之后 before和after 作连词, 后面加句子; 作介词,后面加名词或doing。 1. Close the windows before you leave the room. Close the windows before ________(leave) the room. 从句在前，用逗号隔开 2. I went to school after I finished my breakfast. I went to school after _________(finish) my breakfast. leaving finishing =Before you leave the room, close the windows. =After I finished my breakfast，I went to school. Practice Presentation when 引导某个时刻发生的事情 When he entered the room, everyone looked at him. 引导某段时间发生的事情 When I was playing computer games, my mother came home. 从句的谓语动词可以是延续性动词，也可以是非延续性动词。 Presentation while 引出某个时间段发生的事情 While I was playing computer games, my mother came home. 表示两个动作作同时发生 I was reading while my mother was cooking. 表示两者的对比 （“而，然而”，并列连词） Ann likes tea while Lily prefers coffee. while引导时间状语从句，从句的动词必须是延续性动词 【注意】while 后面还可以跟表示状态的词。 e.g. While I was in Beijing, I visited a lot of places. e.g. When (she is) in trouble, she always asks for my help. While (he was) attending junior high, Spud tried out for the school team. when & while 拓展 当主句和从句的主语一致，并且从句的谓语中有be动词的某种形式时，可以省略从句的主语和be动词,构成when/ while + -ing结构 1. The days get longer _________ spring comes. 2. _____________ the boys were playing football, it rained. 3. I was about to leave _______ the phone rang. 4. Jack is strong ______ his brother is weak. 5. she always asks me for help, ___________ (she is) in trouble. Fill the blanks with “when” & “while” when when When/While when/while while Practice I go to jogging every morning. Then I have breakfast. ________________________________________ 2. I practised playing basketball for hours. I felt tired out. ________________________________________ 3. I met Peter. I was waiting at the bus stop. ________________________________________ 4. I was watching TV. I received a call from my uncle. __________________________________________________ 5. I was ready to go to bed. My father came back from work. ____________________________________________________ I go jogging every morning before I have breakfast. After I practised playing basketball for hours, I felt tired out. While/When I was waiting at the bus stop, I met Peter. While/ When I was watching TV, I received a call from my uncle. When my father came back from work, I was ready to go to bed. P. 54 David is writing in his diary about one of his days. Help him combine his sentences using before, after, when or while. Grammar B 现在完成时+since+一般过去时 Presentation 表示“自从...以来”。从句谓语动词用一般过去时，而主句用现在完成时，且主句的动词必须是延续性动词。 since e.g. You’ve been happy since I first met you. They have been friends since they were at primary school. Presentation since It’s/It has been + 时间段 + since + 时间状语从句 翻译为：自…以来，已经…(时间)了。 从句的谓语动词用一般过去时，且必须是非延续性动词。 e.g. It’s/has been three months since he moved to this city. 时间段 + has passed + since + 时间状语从句 翻译为：自从…以来，… （时间）已经过去了” 。 从句的谓语动词用一般过去时，且必须是非延续性动词。 e.g. Three months has passed since he moved to this city. since还可以引导原因状语从句，翻译为“由于；既然”，语气较弱，一般强调已知事实。 e.g. Since you can’t answer the question, I’ll ask someone else. Presentation till & until Until常与延续性动词连用，表示主句动作一直持续到until表示的时间为止。 e.g. I waited until three o’clock, but he didn’t come. not…until…“直到…才…”，常与非延续性动词连用，表示主句动作直到until所表示的时间才发生。 e.g. The boy didn’t sleep until his father came back. 都表示“直到…为止”。一般情况下可互换，until更正式。until可以放在句首或句中，而till不可以用在句首。 1. I have been crazy about playing basketball _____ I was a little boy. 2. The weather has been awful this week. The rain did not stop _____ yesterday evening, so we could not practice basketball for several years. 3. We played basketball in the playground this afternoon ______ it was getting dark. 4. It is the first time we have played basketball _____ Monday. We enjoyed ourselves very much. 5. I waited for 20 minutes at the bus stop ________ the bus arrived. 6. It is Friday evening. I will not go to bed ______I finish watching my favourite TV programme. since until until till/until till/until since P. 55 Complete the sentences with since, till or until. Grammar C Presentation as soon as as soon as翻译为“ 一…就…”。表示两个动作紧接着发生。 e.g. It began to rain as soon as I left the house. 指未发生的动作，主句一般将来时，从句用一般现在时 e.g. He will visit you as soon as he gets there. 【注意】有时为了特意表达刚完成某事就如何,需用现在完成时。 e.g. I will go with you as soon as I have washed my face. 紧接着发生的两个短动作，主从句都用一般过去时 e.g. He took out his English books as soon as he sat down. 【注意】不过，也有从句和主句都用一般现在时的情况 e.g. As soon as he finishes his classwork, he runs out of the class. Presentation whenever whenever意思是“每当，任何时候，无论何时”，whenever可以用every time, no matter when替换。 e.g. He likes listening to music whenever he has time. Whenever she comes, she brings a friend. I’ll discuss it with you whenever you like. 1. David often goes to play basketball __________ school is over. 2. He watches the NBA _________ there is a game on TV. 3. _________ he talks about basketball, he gets excited. 4. _________ he learnt that the NBA players would come to China, he tried his best to get a ticket. as soon as whenever Whenever As soon as P. 56 C1 Simon is writing about David’s love for basketball. Help Simon complete his sentences with as soon as or whenever. P. 56 C2 David is writing about his uncle’s basketball dream. Help him complete his article with the correct conjunctions you have learnt in this unit. My uncle dreamt of becoming a famous basketball player in his teens.He played in his school‘s basketball team ______ he was a student .Sadly my uncle had a bad accident ___________ he was training hard for a big match. He hurt his knees badly, and they never fully got better. My uncle was so sad. _______ he had his accident, everyone thought he would become a great basketball player. But he could not play well ________ he hurt his knees. when while/when Before after P. 56 C2 David is writing about his uncle’s basketball dream. Help him complete his article with the correct conjunctions you have learnt in this unit. Although my uncle did not become a famous basketball player, he never gave up his love for the sport. _______ he got over the accident, he decided to become a basketball coach. Today he helps young athletes achieve their dreams! So think twice ________ you want to give up your dream. Think of how much you love it. Carry on and fight against all the difficulties __________ you realize your dream someday After before until/till Lavf57.62.100 $$