(三)多媒体
多媒体一次来自“Multimedia”, 多媒体教学是指运用多媒体计算机并借助预先制作的多媒体教学软件综合处理语言、文字、声音、图形、图像、影像等多种媒体信息,把多媒体的各个要素按教学要求,进行有机组合并通过屏幕或投影机投影显示出来的教学活动过程,也称为计算机辅助教学。
兴趣是最好的老师,语法教学的有效性在很大程度上取决于语法教学的趣味性、教学活动的设计的多元化,而多媒体技术以其较强的感染力,刺激学生的情绪反应较为强烈,容易引导学生在情感上的参与。所以我们要充分利用多媒体技术来调动学生学习语法的兴趣,对教学过程进行优化设计。
那么如何在英语课堂教学中恰如其分地使用好多媒体辅助语法教学呢?笔者在借鉴了以上理论的基础上,根据不同的教学目标,不同的教学时段,借助多媒体创设情景,尝试了“呈现—观察—发现—探究—归纳—巩固—运用”单元语法教学模式,并收到了很好的效果。
三、 “呈现—观察—发现—探究—归纳—巩固—运用”语法教学模式
图一
“呈现—观察—发现—讨论—归纳—巩固—运用”单元语法教学模式(如图1)建立在建构主义、交际法、教学过程最优化和高中英语语法教学实践基础上,它打破了传统的教学模式,凸显了学生的主体地位。
该模式注重话题、结构和功能想结合,其设计着重于过程和输出环节,主要依赖计算机技术和话题。根据该模式,语法的学习由七个步骤组成:呈现—观察—发现—探究—归纳—巩固—运用。(如图1)
四、“呈现—观察—发现—探究—归纳—巩固—运用”语法教学模式的实践
下面以人教版必修二Unit 3中的语法项目The Present Perfect Passive Voice为例来探讨在教学中如何运用多媒体设置情景进行语法教学。
(一) 呈现(Presentation)---------利用多媒体的呈现力,通过课文文本,在语境中呈现语法
笔者在这一环节首先让学生回归文本read and find, 同时要完成以下任务:
1 Underline the sentences in the passive voice in the text on P18 and number them.
2 Circle the form of the passive voice in each sentence.
学生在完成这些任务后,笔者利用多媒体把所有学生找到的含有被动语态的句子很直观地呈现出来,利于学生观察。
1 Over time I have been changed quite a lot. (L1)
2……I was built as an analytical machine by Charles Babbage. (L5)
3 After I was programmed by an operator who used cards with holes, I could …. (L6)
4 At that time it was considered a technological revolution and ….. (L9)
5…, I was made smaller. (L16)
6 …, I have been used in offices and homes since the 1970s. (L17)
7 First it was stored in tubes,… (L18)
8 …, I never forget anything I have been told! (L21)
9 Since the 1970s many new applications have been found for me. (L25)
10 I have also been put into robots and used to make mobile phones as well as help with medical operations. (L28)
11 I have even been put into space rockets and sent to explore the Moon and Mars. (L30)
12 I am now truly filled with happiness …… (L33)
(二) 观察 (Read and Clarify)------ 利用多媒体的直观性,引导学生观察
在这一环节,笔者主要是引导学生对这些句子进行分类read and clarify, 然后进行观察
Group 1: Things that were done in the past: 2 3 4 5 7
Group 2: Things that are done: 12 |