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SA1a-1c rainstorm 暴 风 雨 When the rainstorm came ,what should you do? You should stay athome. You should close the window . You shouldnt call. You shouldnt surf the internet. You shouldnt stand under the tree. 过 去 进 行 时含 义 : 表示过去某个 时刻 正在进行的动作。结 构 : was/were + doing例 句 :I was having an English class at this time yesterday. 现 在 进 行 时含 义 : 表示现在 正在进行的动作。结 构 : is/am/are + doing例 句 :I am having an English class. 1.意 义 :2.构 成 :3.标 志 词 :表 示 在 过 去 某 一 时 刻 正 在 进 行的 动 作 。was/were +doing否 定 式 : was/were not +doing疑 问 式 : Was/Were doing?at this/that time yesterday at 9:00 last night was/were doing when.did. When 和 while都 可 表 示 “ 当 时候 ” , 引 导 时 间 状 语 从 句 。 你 知 道 两者 在 过 去 进 行 时 中 的 用 法 有 什 么 不 同吗 ? 请 仔 细 观 察 下 面 的 例 句 , 然 后 补 全 空格 中 的 内 容 。 I was walking to school when I saw a cat in a tree. When Sally arrived home, her mother was cleaning the house. 主 句 的 动 作 时 持 续 性 的 , 而 从 句 的动 作 时 短 暂 性 的 , 此 时 用 引 导时 间 状 语 从 句 , 主 句 用 时态 , 从 句 用 一 般 过 去 时 态 。when过 去 进 行 While I was sleeping in the bedroom,someone knocked at the door. Davide fell while he was riding his bike.主 句 的 动 作 是 短 暂 性 的 , 从 句 的 动 作 是持 续 性 的 , 此 时 用 引 导 时 间 状 语从 句 , 主 句 用 时 态 , 从 句 用过 去 进 行 时 态 。 while一 般 过 去 While Andy was waiting for the bus,hewas reading a newspaper. He was cleaning his car, while I was coking.主 句 和 从 句 的 动 作 在 过 去 的 某 个 时 刻 或某 段 时 间 同 时 发 生 , 而 且 动 作 都 是 持 续性 的 , 此 时 用 _引 导 从 句 , 而 且主 句 和 从 句 都 用 _时 态 。while过 去 进 行 比 较 “ when” and “ while”Target Language:when “ 当 .时 候 ” 后 面 跟 的 动 作 不 延 续 , 常 跟一 般 过 去 时When the UFO took off, the boy was taking photoswhile “ 当 .时 候 ” 后 面 跟 的 动 作 延 续 , 常 跟过 去 进 行 时 While the boy was taking photos, the UFO took off. ExercisesFill with “ While” or “ When”1._ May was talking on the phone, her sister walked in. 2._ Rita bought her new dog, it was wearing a little coat.3._ I saw Carlos, he was wearing a green shirt.4._ I was dancing, he was singing loudly.5. _ Linda finally saw Davy , he was jumping with a dog .6. I was cleaning my room _ the fire broke out .WhileWhenWhenWhileWhen When Fill in the blanks with “while” and “when”.1. Tom was eating supper, it began to rain outside.2. What were you doing, Mr. Zhou came in?3. Peter was sleeping, a thief broke into his house.4. She left her hometown she was five. whenwhenWhileWhile 一 用 所 给 动 词 的 适 当 形 式 填 空1What _ you _ (do) at noon yesterday?2)I _(watch) TV when my mother_ (come) in.3) He _(do) his lessons at ten yesterday morning.were doingwas watchingcame was doing4) The children _(play) football at four yesterday afternoon.5) The baby _ (sleep) when the mother came back.were playingwas sleeping 2) They _ (在 扫 地 ) after school yesterday.3) The boys and girls_(在 唱 歌 ) last night.4)You _( 在 打 篮 球 ) yesterday afternoon, werent you?5) What _To _(在 做 什 么 ) at noon yesterday?were sweeping the floorwere singingwere playing basketball was doing二 . 完 成 下 列 句 子1) Li Lei _(在 读 英 语 ) at this time yesterday.was reading 6) I _( 在 读 一 本 故 事 书 ) last night.was reading a story book
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