Module 4 Unit 3 Language in use课件2023-2024学年外研版英语八年级下册

Module 4 Unit 3 Language in use 八年级下 外研版 通过本课的学习，学生能够： ①总结归纳含有since和for的现在完成时的用法。 ②开展有关健康生活的调研。 ③了解世界卫生组织。 Learning Goals Let’s first enjoy a video to see the use of present perfect. Do you still remember the last principle when we use present perfect? A continuing action that started in the past. Warming Up Language practice Can you translate the following sentences into English? 1.我自从去年买了电脑就没怎么运动过。 2.现在我已经拥有它三个月了。 3.从那以后，它就成了我生活中的一部分。 I haven’t done much exercise since I got my computer last year. I have had him for three months now. Since then, it has become part of my life. Look at these three sentences. What can we know from these sentences? I haven’t done much exercise since I got my computer last year. I have had him for three months now. Since then, it has become part of my life. 要表达某一行为或某一状态从过去某一时间一直持续到现在，这类句子通常与表示一段时间的时间状语连用，这类状语常由for或since引导。for后接一段时间，since后接时间点。 (1)在对现在完成时的时间状语提问时，我们常用how long。 —How long have you played football? —For three years. —How long have you had the dog? —Since three years ago. (2)表示某一行为或状态持续多长时间时，根据时间的不同，可以使用不同的时态。 I stayed in the hotel for a week last summer. I have stayed in the hotel for a week now. I will stay in the hotel for a week next month. 同样表示 “在某一酒店往一周”的概念，第一句讲述的是去年夏天的事情，故用一般过去时；第二句表示到现在为止已经住了一周，故用现在完成时；第三句讲述的是下个月的事情，故用一般将来时。 (3)注意，在现在完成时的句子常表示持续的动作或状态，动词通常为延续性动词；短暂性动词一般不与表示一段时间的状语连用。试比较： 汤姆已经来了两小时了。 ( )Tom has come for two hours. ( )Tom has been here for two hours. 延续性动词可与短暂性动词转换： die → be dead leave → be away (from) open/close → be open/closed stop → be over arrive in (at)/reach/get to → be in/at join → be a member of/ be in × √ 1 Work in pairs. Ask and answer the questions. —How long have you had your bike? —I’ve had it for about two years. 1 How long have you studied at this school? 2 How long have you studied English? 3 How long have you known your best friend? 4 How long have you lived in this place? 5 How long have you used this book? 2 Complete the questionn