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

Unit 4 Growing up Grammar 1 Lead-in 1. Squirrels save food before winter comes. 2. After the war started, lots of people lost their lives. 3. I was sleeping when it started to rain. 4. While Millie was watching TV, Andy came into the room. 5. My family have lived here since I was born. 6. You can ask for help whenever you need it. 1. Squirrels save food before winter comes. 2. After the war started, lots of people lost their lives. 3. I was sleeping when it started to rain. 4. While Millie was watching TV, Andy came into the room. 5. My family have lived here since I was born. 6. You can ask for help whenever you need it. Adverbial clauses of time(时间状语从句) 时间连词（conjunctions of time） till, until, as soon as… before after when while before after when do homework wash the dishes watch TV have dinner Presentation earlier than a certain time later than a certain time at or during a certain time during a certain time A I had dinner before I did my homework. I watched TV after I did my homework. I was doing my homework when it started to rain. I was doing my homework while my mother was washing the dishes. start to rain past future /while before after when/while do homework wash the dishes watch TV have dinner Presentation A start to rain Tip 1: before/after 还可以用作介词。 e.g. We do morning exercises before 9 a.m. 我们9点前做早操。 They always have a rest after lunch. 他们总是在午饭后休息一下。 past future before after when while before after when/while do homework wash the dishes watch TV have dinner Presentation A start to rain Tip 2: when引导的从句谓语动词可以是短暂性的，也可以是延续性的。while引导的从句谓语动词必须是延续性的。 e.g. The days get longer when spring comes. 春天到来时，白天变长。 While/When he was walking to the bus stop, he lost his wallet. 在他走向公交站时，丢了钱包。 past future before after when while since, till和until常用来引导时间状语从句。如： Mr Brown has been in Beijing since you left. 自从你离开，布朗先生就一直待在北京。 I worked till/until he came back. 我一直工作到他回来为止。 since,till和until 引导的时间状语从句 since意思是“自从……以来”。一般情况下，从句谓语动词用一般过去时，而主句的谓语动词用现在完成时。如： They have been friends since they were at primary school. 他们从小学起就一直是好朋友。 注意：since引导的从句的谓语动词可以是延续性动词，也可以是瞬间性动词，但主句的动词必须用延续性的。 句型 “It’s / It has been + 一段时间 + since + 时间状语从句” 中，译作“自从…以来，已经…(时间)了”。从句的动词用一般过去时，而且须是瞬间性动词。如： It’s / has been three months since he moved to this city. 自从他搬到这座城市以来，已经有三个月了。 句型 “一段时间 + has passed since + 时间状语从句”中，译作“自从…以来，…(时间)已经过去了” ，从句的谓语动词用一般过去时，而且须是瞬间性动词。如： Three months has passed since he moved to this city. since还可引导原因状语从句，译作“由于；既然”，语气较弱，一般强调已知的事实。而because通常表示直接的原因。 because引导的从句表示直接而明确的原因和理由，表示按因果关系的推断，语气很强，用来回答why的问题， 一般位于主句之后。 We couldn’t go out because it was too cold. 因为天气太冷，我们不能外出。 Since you can’t answer the question, I’ll ask someone else. 既然你回答不出这个问题，我就问别人了。 till和until意思是 “到……为止” ，一般情况下两者可以互换。until可以放在句首或句中，而till不可以用在句首。 注意：如果主句中的谓语动词是瞬时动词时，必须用否定形式，即“not…until”结构，意思是“直到……才（开始）”，此时until不能替换为till如： Walk till/until you see a white house. 一直走到你看到一座白房子为止。 I did not go to bed until I finished my homework. 直到做完作业我才上床睡觉。 as soon as和whenever 引导的时间状语从句 我们常用as soon as和whenever引导时间状语从句。如 As soon as I arrive in Canada, I will call you. 我一到加拿大，就给你打电话。 Whenever he met us, he smiled at us. 他每次遇见我们，都向我们微笑。 I go jogging every morning. Then I have breakfast. ________________________________________________________________________________________________ a. I go jogging every morning before I have breakfast. b. After I go jogging every morning , I have breakfast. 2. I practised playing basketball for hours. I felt tired out. _________________________________________________ _________________________________________________ After 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 met Peter while (I was) waiting at the bus stop. While (I was) watching TV, I received a call from my uncle. I was ready to go to bed when my father came back from work. e.g. I will tell him the news as soon as he comes back. 他一回来我就告诉他这个消息。 As soon as I went in, Jason cried out with pleasure. 我一进门，贾森就高兴地大叫起来。 考题：[桂林] The young men all shouted “Happy New Year” _______ it was twelve o’clock. A. after B. as soon as C. if B E.g. You 've been happy since I first met you. since means ________ a certain time. from since + 过去的时间点 /动作 主句： 现在完成时 Mr Brown has been in Beijing since you left. I’ve lived here since I was born. They have been friends since they were at primary school. 考题 [乐山] —What’s your plan for the summer holiday? —I’ll go to Chengdu as soon as the school term ______. A. end B. ends C. will end 【点拨】本题用语法判定法。本句是as soon as 引导的时间状语从句，符合“主将从现”原则，主句是一般将来时，从句是一般现在时；从句主语是第三人称单数，故谓语动词用其第三人称单数形式。 B e.g. Come whenever you like. 你什么时候想来就来。 拓展：whenever 还可作副词, 意为“究竟什么时候”。 e.g. Whenever did you find time to do all that cooking? 你怎么有时间做了这么多菜？ E.g. Spud reminded in another basketball league for about a year till/until the NBA took notice of him. till/until means ________ a certain time. up to as soon as 和 whenever 引导的时间状语从句 as soon as 和 whenever 引导的 时间状语从句 as soon as: 连接的时间状语从句中, 指未发生的动作时，主句用一般将来时, 从句用一般现在时代替一般将来时。指紧接着发生的两个短动作时, 主从句都要用一般过去时。⑦ whenever: 作连词, 意为“每当，无论何时”。⑧ 考点 考题：________ I meet difficulties, my teacher always encourages me to face them bravely. A. Whenever B. Whatever C. However A 本节课主要学习了： 重点单词：against 重点短语：feel tired out , become serious about basketball, take part in the Olympics 23 $