新概念二Lesson 7 （共23张PPT）.pptVIP

Lesson 7 Too late A story is about diamonds… 刘嘉玲钻戒，12克拉卡地亚梨形钻戒 玛丽亚 凯莉价值250万美金的粉红色钻戒 维多利亚价值2万英镑的白色钻戒 伊娃的结婚钻戒 章子怡订婚钻戒 4Cs to choose a diamond: Cut: 切割 Color：颜色 Clarity：纯净度 Carat weight：重量 New words and expressions: Detective n. 侦探 adj. 侦探的 侦探小说 detective novel Detect v. 侦查，察觉 Detect sb. in doing sth. 发现某人正在做坏事 Airport n. 机场 Airfield n. 飞机起落的机场 Expect v. 期待，等待，预期，预料 Expect sth. of sb. 对…期望（要求） 大多数父母都对自己的子女寄予很大希望。 Most of parents expect much of their children. Expectation n. 期望 Steal v. 偷，盗，窃取 Steal sth. from sb. 从某人处偷东西 他从他妈妈那偷了五元钱。 He stole five yuan from his mom. Sand n. 沙；v. 撒沙，撒沙似的布满 a clear night sanded with stars 布满星斗的晴空夜晚 The plane was late and detectives were waiting at the airport all morning. They were expecting a valuabel parcel of diamonds from South Africa. When the plane arrived, some of the detectives were waiting inside the main building. While two detectives were keeping guard at the door. Key structures：过去进行时 过去进行时的基本用法： 1.过去进行时表示过去某个时刻或某一阶段正在进行的动作； 昨天晚上九点你在做什么？ what were you doing at nine last night? 2.当两个一长一短的动作在过去某个时间同时发生时，用过去进行时表示较长的动作。 当两个延续动作同时并行时，二者都可用过去进行时表达。 It was raining hard when I left school. When I was cleaning the windows, my brother was sweeping the floor. 过去进行时句型： 肯定句：主语+was/were+现在分词+… 否定句：主语+was/were+not+现在分词+… 疑问句：Was/Were+主语+现在分词+… Exercises: As my father___(leave) the house, the postman___(arrive). Tom___(work) in the garden while I___(sit) in the sun. As I___(walk) down the street, I___(meet) Charlie. While he___(read) the letter, he___(hear) a knock at the door. While mother___(prepare) lunch, Janet__(set) the table. 6. She__(drop) the tray when I___(speak) to her. 7. ---I called you at4:00 yesterday afternoon, but no one answered. ---Sorry, I __ with my friends at that time. A. swim B. swam C. will swim D. was swimming 8. It ___ heavily when I left the cinema. A. rains B. will rain C. is raining D. was raining ---