Unit 5 Section A (Grammar Focus～4c)学案 2023-2024学年初中英语人教版新目标八年级下册

Unit 5 Section A (Grammar Focus~4c) 【学习目标】 1.能记住并掌握现在分词的构成及用法。 2.能总结when和while引导的时间状语从句的用法并能正确使用。 3.能用过去进行时谈论过去发生的事情。 【预习导学】 一、选一选 1.My parents 　 　 (ate; were eating) dinner at that time.  2.Mike fell into the lake while he was fishing.　 　, (Lucky; Luckily) a young man saved him.  3.You must drive your car carefully because the road is 　 　 (icy; ice) now.  4.—This sweater is 1,998 yuan. —You're 　 　 (kiding; kidding)! They are much too expensive.  5.I was walking on the street when it began to rain 　 　 (heavily; heavy).  二、句子速译 1.当开始下雨的时候,Ben正在帮他妈妈做晚饭。 ______________________________________________________________ 2.Linda在睡觉的时候,Jenny正在帮Mary做作业。 ______________________________________________________________ 3.——上个星期天的早上九点你在做什么? ——我在做作业。 ______________________________________________________________ ______________________________________________________________ 三、想一想 1.引导时间状语从句的连词有哪些? ______________________________________________________________ 2.“一场大雪”用英语怎么表达? ______________________________________________________________ 【答案】 一、 1.were eating　2.Luckily　3.icy　4.kidding　 5.heavily 二、 1.When it began to rain, Ben was helping his mom make dinner. 2.While Linda was sleeping, Jenny was helping Mary with her homework. 3.—What were you doing at nine o'clock last Sunday morning? —I was doing my homework. 三、 1.when, before, as, after, while, till, since等。 2.A heavy snow. 【合作探究】 任务驱动一 语法感知 1.快速写出下列所给动词的现在分词。 play 　 　　　　take　 　  swim　   turn 　 　  leave　   hit　 　  2.想一想、填一填。 动词现在分词的构成规律: 任务驱动二 语法训练 1.观察Grammar Focus中前三行的句子,完成下面的内容。 过去进行时态 2.巩固练习:用所给单词的适当形式填空。 (1)I 　 　(watch) TV at that time.  (2)You 　 　(read) at 9 o'clock last night.  (3)She　 　(sing) when the teacher came in.  (4)What 　 　 you 　 　(do) at the time of the rainstorm?  ◎学法指导: 1.先找每句话的时间状语,然后根据时间状语判断动词的正确形式。 2.注意:过去进行时态不要忘记加was/were。 3.观察Grammar Focus中后两行的句子,完成下面的内容。 when和while的用法: (1)如果主句的动作是持续的,而从句的动作是短暂的,此时用 　 　引导时间状语从句,主句用　 　时态,从句用 　 　时态。  (2)如果主句的动作是短暂性的