请认真阅读下列材料，并按要求作答。
Let’s learn
材料①
There is a tree in front of the house.
请根据上述材料完成下列任务：
(1)请简述什么是课堂操练。
(2)设计Presentation环节的教学活动，并对设计意图加以说明。
(3)设计 Practice环节的教学活动(不少于2个)，并对设计意图加以说明。
答案：
解析：
(1)课堂操练是学生在理解新语言的语义、语境、语用形态之后，在教师指导下进行简单的运用训练。为了避免形式枯燥，教师也可借助一些实物、卡片、图片等创设情景，让学生在教师提供的真实情景下，运用新学到的单词、句子等进行简单交际。教师也可以设计一些游戏或其他有趣的教学活动，激发他们的学习兴趣，活动的设计要有目的性、灵活性、挑战性、全面性和参与性。
(2)Present.ion
①The teacher shows students pictures about dog and ball.
(Teacher points the first picture)T：Where is the ball?
(Students may answer in Chinese)Ss：在狗的前面。
T：Yes，we can say the ball is“in front of”the dog.“In front of”means“在……前面”.You can also say the blackboard is in front of you，the desk is in front of you.Can anyone give me an example?
S1：Li Ming is in front ofme.
S2：The tree is in front of our classroom.
T：Great.So when I ask you where the ball is，you can answer“It’s in front of the dog”.(引入句型的讲授)Where is the blackboard?
S3：It’s in front of me.
T：Where is the tree?
S4：It’s in front of the classroom.
T：Yes，you all did a good job.
Then the teacher uses the same way to teach the other words between，behind，and above.
②Listen to the radio
The teacher lets the students listen the radio and read after it.
③Read after teacher
The teacher asks students to read the new words，then lets them read after him/her.
(设计意图：引导学生学习新的方位介词，并利用教材内容练习学生的听、说能力。)
(3)Practice
①Listen and do
One student gives guidance by using the new words;the other students do as the student
commands.
Teacher gives timely and specific feedback to students.
②Find and say
Teacher asks students to look at the picture and work in paim.
One student asks the other where the tree/house/chicken is.The student should give the right answers and ask a similar question according to the picture.
While students are doing the activity，the teacher should walk around the classroom and listen to what the students are sayin9.Ⅱsome students are not doing the right task.the teacher should rectify.If some students find it difficult to do the activity，the teacher can give hints.
(设计意图：通过练习，学生能够加深对方位介词的印象并且熟练使用方位介词。同时，学生能够使用方位介词进行简单的对话。)
(1)呈现演示的原则
①呈现演示的方式方法要根据教学内容、对象来定;
②呈现语言要简洁易懂，一般不用学生未学过的词汇;
③要富有直观性、趣味性和启发性;
④尽量使用英语，必要时使用母语;
⑤把利用环境和创造情景统一起来。
(2)教学目标
知识与技能目标：
①能够在图片和教师的帮助下理解对话大意。
②能够在语境中理解It’s tall/short/fat.的语用功能，并在图片或动作等帮助下，使用It’s+adj.描述动物的外形特征。
③能够朗读对话，并能进行角色表演。
④能够用简笔画出常见小动物，并运用学到的语言结构描述自己的作品。
过程与方法目标：通过绘画来描述动物的特征，学会形义结合，来加深对句型的掌握。
情感态度与价值观目标：增强保护动物的意识。
(3)新知呈现：
①Present the sentences
a.The teacher presents a picture of pig.
T：Look at the pig.It’s so fat.(教师借助语气和动作进行教学，引导学生跟读)
Ss：It’s so fat.
b.Teacher shows the picture of giraffe.
T：Look at the giraffe.It’s so tall.(教师借助语气和动作进行教学，引导学生跟读)
Ss：It’s so tall.
C.Teacher presents the picture of panda.
T：Look at tlle Danda.Is it tall?
Ss：No.
T(做动作)：It’s so short.It’s short and fat.(引导学生跟读)
S：It’s short and fat.
T：I’m also short and fat.(做动作加表情)Do you think so?
S：…
(设计意图：呈现有趣的动物图片，吸引学生的注意力，通过语言、表情和肢体动作等辅助教学，让学生加深对单词和句型的意义的理解，学生学起来会觉得比较轻松。)
②Listen and answer
The teacher asks students to listen to the dialogue twice and tells them to try to answer two questions：
a.Who is tall?
b.Who is short and fat?
The teacher asks some students to answer the questions and gives them some assessment.
(设计意图：学生带着问题有目的地进行听力训练。一方面能够锻炼学生的听力能力.另一方面能够加深学生对新句型的理解。)
