人教版八年级英语上册Unit 8 How do you make a banana milk shake? Period 5 （Section B 3a-Self Check）教案

Period 5 (Section B 3a-Self Check)
设计说明
本课时的重点是写作。完成3a任务，让学生了解如何描述一种食物的制作过程。在完成3b时，引导学生复习如何区分可数名词与不可数名词，以及“How many/How much... ”的用法。这样既能对已学知识有所复习，又能让学生找准写作的方向，然后顺理成章地完成3c的写作。最后完成Self Check，巩固单元语法。
教学目标
1. 知识目标：
(1)指导学生利用课堂上所获取的知识来仿写一篇短文，介绍自己所喜欢的一种食物的做法。
(2)通过完成Self Check中的练习题来全面复习how much和how many的用法。
2. 能力目标：能熟练运用祈使句描述一种食物的制作过程。
3. 情感目标：通过食物制作过程的介绍，让学生认识到劳动成果来之不易，使之懂得不能浪费食物，珍惜他人的劳动成果。
重点难点
1. 重点：正确运用祈使句描述自己所喜欢的一种食物的制作方法。
2. 难点：能用课堂上所获取的知识介绍自己所喜欢的一种食物的制作方法。
教学准备
多媒体课件
教学过程
Step 1　Warming up
1. Retell the article in Section B 2b.
2. Here’s a recipe for a great turkey sandwich! Complete the instructions with the words in the box.
turkey，finally，butter，tomato，then，put
First，put mustard (芥末酱)on two slices (薄片)of bread. Then，cut up one tomato. Put the tomato on the bread. Next，add two slices of turkey. Finally，put two spoons of butter on the turkey.
Step 2　Presentation
1. Leading in.
T：What do we Chinese eat on our birthdays
Ss：We always eat noodles.
T：There is a very special kind of rice noodles in Yunnan. Do you know the name of it
Ss：Yunnan rice noodles.
T：Good. Do you know how to make rice noodles Now，please look at 3a.
2. Work on 3a.
(1)Have the students cover the box and look at the passage.
(2)Elicit the possible words for each of the blanks，one by one from the students.
(3)Write the words on the blackboard，and explain to the students why their guesses could be correct or incorrect from a grammatical point of view.
(4)Have the students uncover the box and fill in the blanks.
(5)Check the answers.
Answers：have，First，wash，Next，cut，cook，Finally，enjoy
(6)Cooperative inquiry
Discuss the following language points and fill in the blanks.
You need to have rice noodles，chicken soup，chicken，lettuce and eggs.
此句中，need作实义动词，意为“需要”。其后可跟名词、代词、动词-ing形式或动词不定式。
need还可用作情态动词，意为“需要”，其后跟动词原形，多用于否定句或疑问句中。
You need to clean (clean) the room every day.
你需要每天打扫房间。
He needn’t come at once. 他不必马上来。
—Must I finish my homework now
我现在必须完成作业吗
—No，you needn’t. 不，你不必。
(7)Read again，and try to retell the process of making rice noodles.
Step 3　Practice
1. Think of a favorite food in your hometown. Make a list of ingredients.
Ingredients watermelon apple banana honey yogurt
Amount one two three one spoon two spoons
2. Students change their lists with their partners，and then ask and answer in pairs.
For example：
S1：How many tomatoes do you need
S2：Three.
S1：How much sugar do you need
S2：Two spoons.
...
Step 4　Writing
1. Write a recipe for your favorite food. Use 3a and 3b to help you.
写作指导：
(1)要使用表示顺序的词：first，then，next，after that，finally。
(2)应注意正确运用祈使句来表达。
(3)合理利用3a、3b积累的语言素材。
2. Let some students read their passages to the class.
Sample writing：
It is very easy to make your own delicious burger. You need beef，bread buns，lettuce，onions and sauce. First，cut the bread bun and cook it. Next，cut the lettuce and onions. Put some lettuce and onions on the bun and add some sauce. Then，use your hands to shape the beef into a ball. Next，flatten the ball of beef to form a beef patty. Then，cook the patty on both sides. Finally，put the patty on the bottom half of the bun，add more lettuce，onions and sauce，and put the other half of the bun on top. Enjoy your burger!
Step 5　Expansion and Extension
Work on 4.
1. T：I like beef and tomato soup very much. Do you know how to make this crazy food (Show the process of making beef and tomato soup on the screen. )
First，cut up tomatoes and some beef.
Next，put them in the water.
Then，add some relish and salt to the soup.
Finally，boil the soup.
2. Ask the students to make their own crazy food in pairs.
Step 6　Self Check
1. Work on Self Check 1.
(1)Read and translate the sentences.
(2)Number the instructions.
(3)Complete the instructions with the words in the box.
(4)Check the answers.
Answers：
4 Finally，mix everything together and serve it.
3 Then/Next，cook for five minutes and add two eggs.
1 First，cut up three tomatoes and put them into a pot.
2 Next/Then，add some water，sugar and salt.
2. Work on Self Check 2.
(1)Revise the use of how many and how much.
(2)Write questions and answers using the words in the brackets.
(3)Check the answers.
Answers：
1. A：How many eggs do we need to make a cake
B：We need two eggs.
2. A：How much milk do we need
B：We need three cups of milk.
3. A：Do we have to add sugar or honey
B：Yes，we can add two spoons of honey.
(4)Students role-play the conversations in pairs.
Step 7　Summary
1. Learn how to describe a food production process.
2. Distinguish countable nouns and uncountable nouns correctly，and can use the structure of “How many/much... ”.
3. Release command with the imperative sentence.
4. Use adverbs of sequence correctly.
当堂达标(见导学案“当堂达标”)
答案与解析：
Ⅰ. 1. D　yogurt是不可数名词，没有复数形式，也不能用how many提问，故排除A、C两项；不可数名词前通常用“表示量的名词+of”来表示数量，对不可数名词前表示量的名词进行提问时要用how many，故选D。
2. C　bread是不可数名词，“一片面包”为a piece of bread，“两片面包”为two pieces of bread。
3. A　“It’s time to do sth.”是固定句型，意为“到做某事的时间了”，故选A。
4. B　to make this delicious food构成动词不定式短语，在句子开头作目的状语；need to do sth. 意为“需要做某事”。故选B。句意：要制作这种美味的食物，你需要先把蔬菜洗一洗。
5. C　句意：请不要开窗。我有点儿冷。open作动词时，意为“打开”，其反义词是close(关上)；祈使句的否定形式是在谓语动词前直接加don’t。由句意可知选C。
6. C　祈使句的否定形式是在谓语动词前直接加don’t。
Ⅱ. 1. snows　时态承接上文，用一般现在时；主语是it，所以谓语动词应用第三人称单数形式。
2. impossible　句意：在冬天不可能得到各种新鲜的蔬菜。
3. found　in the old days意为“从前；过去的时候”，由此可知本句应用一般过去时；find的过去式为found。
4. mixed　承接上文时态，要用一般过去时。
5. scientists　scientist意为“科学家”，是可数名词；some后跟可数名词复数形式。
6. health　名词所有格修饰名词或名词短语；people’s health 意为“人们的健康”。
7. disagree　由but可知下文的观点与上文观点相反。故填disagree。句意为“有些人不同意”。
Ⅲ. 1~5　AEBDC
Step 8　Homework
Review the new words and phrases in this unit.
板书设计
UNIT 8 How do you make a banana milk shake Period 5 (Section B 3a—Self Check)
可数名词与不可数名词 祈使句的用法 表示顺序的副词 To make this special food，you need to... ...you can also have other things like fish and different vegetables. Now，it’s time to enjoy the rice noodles!
教学反思