语法复习――时间、原因状语从句教案（表格式）

上课日期： 年 月 日 第 1 课时
课 题 语法复习――时间、原因状语从句
课时安排 Period I 课 型 Revision and application
教学目标 1. The students will be able to grasp the grammar;2. The students will be able to practice using the grammar in the given context；3. The students will be able to use the clauses in their writing.
重难点 The students will be able to use the clauses in their daily life;The students will be able to use the clauses in their writing.
教具准备 Multi-media
师生活动过程 设计意图
Step 1 Grammar (1)一、when“当……时”，引导时间状语从句时，从句用于表示主句动作发生的特定时间。如：The days get longer when spring comes. = When spring comes, the days get longer.春天到来时，白天变得更长了。二、before“在……之前”，引导时间状语从句时，表示主句动作发生在从句动作之前。如：Close the door before you leave the room.离开房间前关上门。三、after“在……之后”，引导时间状语从句时，表示主句的动作发生在从句的动作之后。如：I went to school after I finished my breakfast.吃完早饭后我就去上学了。四、as soon as“一……就……”，引导时间状语从句时，表示主句动作紧接着从句动作发生。如：I’ll call you as soon as I get home.我一到家就给你打电话。五、until, till“直到”，引导时间状语从句。当主句谓语动词是延续性动词时，主句常用肯定形式；当主句谓语动词是非延续性动词时，主句要用否定形式，即“not…until/till…”意为“直到……才……”。如：I’ll wait here until/till the rain stops.我将在这里等着，直到雨停。You can’t go home until/till you finish your work.直到你完成你的工作，你才能回家。Step 2 Grammar (2) 一、引导原因状语从句 ( https: / / baike. / item / %E4%BB%8E%E5%8F%A5" \t "_blank )的从属连词 ( https: / / baike. / item / %E4%BB%8E%E5%B1%9E%E8%BF%9E%E8%AF%8D" \t "_blank )主要的有because, for ,In that, for the reason that; as, seeing (that), seeing as; since; now (that); considering (that)等：The woolly shrank because it was washed badly.
　　毛衣因为洗涤的方法不好而缩水。I can’t get to sleep because of the noise outside.
　　由于外面声音嘈杂我睡不着。Since [As] we’ve no money, we can’t buy it.
　　由于我们没钱，我们不能购买它。Seeing that it’s raining, we’d better stay indoors.
　　既然外边在下雨，我们最好待在室内。Now that you are here, you’d better stay.
　　你既然来了，最好还是留下吧(既来之，则安之 ( https: / / baike. / item / %E6%97%A2%E6%9D%A5%E4%B9%8B%EF%BC%8C%E5%88%99%E5%AE%89%E4%B9%8B" \t "_blank ))。二、because从句 ( https: / / baike. / item / %E4%BB%8E%E5%8F%A5" \t "_blank )与 because of短语的转换Because引导的原因状语从句有时可与because of 短语转换，because of后加的原因可以为好或坏但最正规的还是becauseHe can’t come because he is ill. / He can’t come because of his illness.
　　他因病不能来。I said nothing about it because his wife was there. / I said nothing about it because of his wife’s being there.
　　因为他妻子在那儿，我对此事只字未提。Step 3 Practice Do some exercise in class.Step 4 HomeworkGrasp the grammar in this class.Do some more exercises after class.
教学反思