第五章
第十一章
3 production 这是情态动词的语法拓展部分，教师可以通过对饮食对健康的影响的语段，组织课堂活动，以小组讨论形式，用对话和陈述两项活动让学生在交际中学会语言的运用。
[链接3]中提供了一个处理该部分内容的教案或课件。
[链接1]
说明：
本课时主要是对情态动词和宾语从句的语法操练。可以通过日常生活的对话灵活引入这两个概念。并把这两个语法点有机地结合起来，运用于语言的交际中，使枯燥的语法生动化。我们有必要创设生活情景，让学生在情景中进行更深层次的操练。如下提供具体处理这部分内容的建议以及相关的背景。
Warming-up
T: Hello, everybody, how are you these days?
S: I am well.( fine, nice, OK…) / I am not fine. (I feel sick.) And how are you?
T: I am extremely exhausted, because I have been busy writing an article until midnight these days.
By the way, can you tell me some advice on how to refresh?
S: You should stop to refresh first./ You can ask your friends for help./You have to have a rest.
T: Can you tell me your advice again in a more polite way by using such verbs as think, believe, suppose?
S: I think you should stop to refresh first.
T: Thanks, I think so.
T: Good, ok, today we will learn the way to express your ideas by using the words have to / need to do and object clauses, the object clauses with that and wh-.
Pair work
1.Two students as a pair, one will speak out his/her troubles, the other will offer his/ her the advice by using have to / need.
E.g. S1 My skin is dry and rough.
S2 Then you have to/ need to take more Vitamin C.
2. Four students as a group, one will speak out his/her problems, the other three will give his/her advice by using have/ need. ( more suggestions), and the first one will choose which is the best by using the object clause with think, believe…
www.yf1234.com More suggestions. S3 Then you have to/ need to see a doctor.
S4 Then you have to/ need to avoid going out very often.
S1 I think I have to avoid going out very often.
Problems for reference
a. I have got a lot of homework to do today.
b. My hair is turning white.
c. I am growing fat these days.
[链接2]
说明：
本部分内容在处理的时候，要注意对比和操练的方法。情态动词need的双重性，引入其它情态动词的基本用法，使学生对高中阶段的情态动词有基本的了解。并通过大量的操练来巩固和加深。宾语从句的操练也是如此，还可以用句型转换的形式让学生在对比中加深印象。尤其注意从句的陈述句语序。教材中的宾语从句练习比较枯燥，可以选做。补充练习可以弥补牛津教材练习量不足的弱点，将教材为我所用，加以改造，在课堂教学中及时有效地检测学生的语言运用能力。
情态动词概说
助动词(auxiliary)主要有两类：基本助动词(primary auxiliary)和情态助动词(modal auxiliary)。基本助动词有三个：do, have和be；情态助动词有十三个：may, might; can, could; will, would; shall, should; must, need, dare, used to, ought to. 上述两类助动词的共同特征是，在协助主动词构成限定动词词组时，具有作用词的功能。基本助动词与情态助动词最主要的区别之一是，基本助动词本身没有词义，而情态助动词则有自己的词义，能表示说话人对有关动作或状态的看法，或表示主观设想：
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高一英语Food for thought教案1