Unit 8 Safe and sound (Grammar)课件-2025-2026学年译林版八年级英语上册

该初中英语课件聚焦八年级上册Unit 8语法模块，核心讲解过去进行时的用法、构成（was/were + v-ing）及when, while, as的运用。通过Suzy和Amy的事故对话导入，结合问题链引导学生观察时态特征，再以例句总结规则，搭建从情境感知到规律归纳的学习支架。 其亮点在于融合情境化与结构化教学，通过对话情境激活语言能力，用表格系统归纳语法构成与when/while/as的用法差异，结合对比练习（如过去进行时与一般过去时辨析）提升思维品质。写作任务“描述紧急事件”促进知识迁移，助力学生深化语法应用，教师可依托此资料实现从输入到输出的高效教学。

Grammar Unit 8 Safe and sound 八年级上册 Presentation Read the conversation between Suzy and Amy and answer the following questions. 1. What are they talking about? 2. When and where did the accident happen? 3. What were they doing when the accident happened? An accident. It happened near their school at 4:10 yesterday afternoon. They were going home from school. Presentation 4. Which tense is used in the sentences with words in bold? How do you know? The past continuous tense. We can tell from the past continuous forms of the verbs like “were going”, “was riding” and “was raining”. Presentation was/were Presentation Summarize the use and form of the past continuous tense. Presentation Summarize the use and form of the past continuous tense. Presentation Read the sentences on page 112 and summarize the meaning and use of when, while and as. Presentation When a shorter action happened at the same time as a longer action, we use ____________________ for the longer action and __________________ for the shorter action. the past continuous tense the simple past tense Presentation When there are two long actions, we often use ________ to join the clauses. If the shorter action is in the main clause,we can use ___________ to join the clauses. when/while/as If the longer action is in the main clause, we can use ________ to join the clauses. when while Presentation Go through “Grammar check” from pages 164 to 165. Practice Finish the following sentences with the correct forms of the verbs in brackets. (1) While the classmates ____________ (listen) to the teacher, Tom was reading a novel. (2) When it began to rain, Tom ____________ (help) his mum cook dinner. (3) He ____________ (tie) a kite to the tree when I saw him. (4) I stood at the top of the mountain as the sun ____________ (rise) last Sunday. were listening was helping was tying was rising Practice (5) Daniel ____________ (do) his homework when his parents came home yesterday evening. (6) He didn’t notice anybody passing him because he ____________ (sleep) at that time. (7) At this time yesterday, everyone except Tom ____________ (play) basketball in the gym. (8) —Did you notice him come in? —No. I ____________ (watch) a football game. was doing was sleeping was playing was watching Practice was getting was reading was snowing were enjoying Practice was watching were visiting Practice was snowing was blowing drew were clearing were getting were enjoying Finish Part B. Presentation Read Part B and tell the difference between the past continuous tense and the simple past tense. Production At 7:00 p.m. last Sunday, there was a sudden power cut in my town. Each member of my family was doing different things at that time, and the power cut affected us in many ways. My mother was cooking in the kitchen when the whole house had a power cut. Therefore, we had to eat some bread and fruit. My father was writing an important report in the study. He had to write it later. I was taking a shower at that time. I had no choice but to put on my clothes in the dark. From then on, we realized the importance of electricity in our daily lives. Thank you! $