根据题目要求完成下列任务，用中文作答。
31.课堂教学设计是以获得最优化的教学效果为目的，提高课堂教学质量的一项关键工作。简述其五个基本要素，并说明基本程序。
三、教学情境分析题(本大题1小题，30分)
根据题目要求完成下列任务，用中文作答。
32.以下是一位老师在进行词汇教学时的情景：
Step1复习(revision)
互致问候后，教师将装有彩色小图片的信封分发给各小组。
T：Open the envelopes.please.You have something nice in them.What are they?
S：A green ear，a red ball，a blue plane，a yellow cat…
T：What do you like?
S：I like…
Step 2导人(1eading—in)
PPT播放歌曲，师生共同演唱。
T：Let’s sing the song“Who Is Wearing Yellow Today”.
音乐结束后，教师并没有停下来，而是改编歌词继续唱。
T：Who is wearing blue today?blue today?blue today?Who is wearing blue today?
blue today?
Step 3呈现(presentation)
T：Who is wearing blue today?
S：You are wearing blue today.
T：Yes，I’m wearing blue today.I’m wearing a blue sweater now.
学生跟读：sweater，sweater，blue SWeater
T：I like the blue sweater.If you like it.please say it out loud.
PPT展示粉红色毛衣图片
T：Do you like the pink sweater?
S：Yes，I like the pink sweater.
(借助学生穿着的服装，引出jacket等新词，展开活动)
T：It is too hot.I’ll take off my sweater.Please take off your iacket.
(伴随动作，一次教授词组：take off，put on，hang up和put away)
根据以上所给的教学案例，回答下面问题。
(1)教师在复习、导入及呈现环节创设了不同情境，请分别对其创设方法及作用进行分析。(15分)
(2)评析教师在语言学习活动中的角色。(15分)
四、教学设计题(本大题1小题，40分)
根据提供的信息和语言素材设计教学方案，用英文作答。
33.设计任务：请阅读下面学生信息和语言素材，设计一节英语语法课的教学方案。教案没有固定格式。但须包含下列要点：
• teaching objectives
•teaching contents
• key and difficult points
• major .steps and time allocation
• activities and justifications
教学时间：45分钟
学生概况：某城镇普通中学九年级(初中三年级)学生，班级人数40人，多数已经达到《义务教育英语课程标准(2011版)》四级水平，学生课堂参与积极性一般。
语言素材：
Girl 1 : Where are you going, Larry?
Boy 1 : To Tom' s party.
Girl 1 : Lucky you !I' d love to go to that party !
Boy l : Yeah, well, I'm a little nervous. I don't know what to wear.
Girl 1 : If I were you, I'd wear a shirt and tie.
Boy 1 : What if everybody else is wearing jeans and T-shirts?
Girl 1 : Oh, you shouldn't worry about what other people are wearing.
Boy 1 : And I don't have a present. What if everyone brings a present?
Girl 1 : If I were you, I'd take a small present--a pen or something. Keep it in your pocket
and if everyone has a present, you can give him yours. If not, you can keep it.
Boy 1 : OK. But what if I don't know anyone?
Girl 1 : If you don' t know anyone, you can talk to Tom. He'll introduce you to people.
Boy 1 : I guess I can do that.
Girl 1 : Look !You' re sure to have fun. But if you' re still nervous, you can leave.
