Unit 3 Animals Are Our Friends Lesson17教案冀教版八年级下册

Unit 3 Animals Are Our Friends
Lesson 17 Save the Tigers
LESSON PREPARATION
LANGUAGE KNOWLEDGE
掌握词汇：century, courage, brave, reason,kil, cut(cut, cut)
接触词汇：fur, symbol, chain, balance, disappear, decrease
短语和句型：at the beginning of., drop to, food chain, in balance, in danger, cut down, as well
RESOURCES
audiotape. red, yellow and green construction paper strips. poster paper
plain slips of paper (see Extension)
LESSON STRUCTURE
CLASS OPENING
Greeting
Greet the class and introduce the topic of today's lesson.
Teacher: Good morning/afternoon, class. Today's lesson is about a very important topic. It's about protecting our animals. Our animals are a very important part of the environment. Some of our animals are in danger of disappearing. Can you think of some reasons why these animals are in danger Write the phrase in danger and the word reason on the board. Explain. Students should master this phrase and word. Discuss the questions above as a class and create a list or a mind map on the board. Review
1) Homework check.
2)Choose some students to present their"Just Joking"comic strip.
KEY CONCEPTS
FOCUS STRUCTURES:
But today that number has dropped to a few thousand.
The tiger is at the top of the food chain.
In recent years, tigers have been in danger of disappearing.
People have cut down a lot of trees as well.
STEP 1: Present
CLASS WORK: Think About It
1)Do some pre-reading activities. Discuss the title and layout of the reading.
Teacher: What can you tell me about this lesson just by reading the title
Students: This lesson is about saving the tigers. Teacher: That's right. How many paragraphs are there in this lesson
Make sure that the students understand what a paragraph is.
Student: There are three paragraphs in this lesson. Teacher: Very good. Today we are going to learn about the parts of paragraph.
2) Teach the traffic light system for writing paragraphs.
Step 1: Give each student I green strip, 3 yellow strips, and 1 red strip. Draw a traffic light diagram on the board (see the example below). Brainstorm topics with the class and write one on the board.
Step 2: Choose a topic and explain that students are going to learn how to write a paragraph using the Traffic Light System. Point to the diagram and discuss that there are three parts to a paragraph— a beginning (topic sentence), a middle (supporting sentences), and an end (ending sentence).
Step 3: Take out a green strip and have students do the same. Have students come up with a topie sentence based on the topic they have chosen. For example, the topic is animals. The topic sentence can be:
Everyone writes the topic sentence on a green strip. Explain that green means "go" and we have begun our paragraph.
Step 4: Have students take out their 3 yellow strips. Explain that they have to think of three supporting sentences, or sentences that are about the topic sentence. Ask the students to write their sentences on the yellow strips.
Step 5: Explain to students that they now have to close/finish/end the paragraph or STOP.
Ending sentences can (a) repeat the topic sentence in a different way, (b) express how we feel about the topic, (c) express what we think about the topic.
(repeating topic sentence)
(expresses feeling)
(expresses thoughts)
Step 6: Have the students place the colour strips in order from green to yellow to red like a traffic light. Then have them read their paragraph aloud.
Animals are important.
Animals are an important part of the environment.
They provide us with food and many other resources.
They can be our friends and our helpers.
I think animals are an important part of our lives.
Step 7: Give each student a large piece of construction paper so that they may glue their strips onto the paper and make it look like a real paragraph.
Step 8: Once they have completed Step 7, instruct the students to write out their paragraph onto a regular piece of paper.
3) Discuss the Think About It questions and the Learning Tip as a class.
STEP 2: Read
CLASS WORK: Reading aloud
1) Read Lesson 17 as a class. Monitor students pronunciation and comprehension 2) Ask the students to identify the topic sentence in each paragraph. Discuss.
STEP 3: Break It Down
CLASS WORK: Discussion
Discuss the following questions as a class.
How many tigers were there at the beginning of the 20th century
Write the word century on the board. Explain and translate if necessary. Students should master this word.
How many tigers are there in the wild today
Write the phrase drop to on the board. Explain. Students should master this phrase.
Where do tigers live
What do tigers look like
What do tigers symbolize
How are tigers described in many stories
Write the word brave on the board. Explain. Students should master this word.
What does "at the top of the food chain" mean
Write the phrase food chain on the board. Explain. Students should master this phrase.
What is the reason tigers are important to the environment
Write the word reason on the board. Discuss. Students should master this word.
. Why do people hunt and kill tigers
Write the word kill on the board. Translate. Students should master this word.
Aside from their being hunted and killed, what is another reason tigers are disappearing
Write the phrases as well and cut down on the board. Explain. Students should master these phrases.
STEP 5: Read
GROUP WORK: Let's Do It! No. 2
1) Instruct the students to read Lesson 17 again and complete the exercise in groups.
2) Ask each group to present their answers to the class.
STEP 6: Task
PAIR WORK: Let's Do It! No. 3
1) Instruct the students to work in groups to brainstorm different ideas about how we can protect animals. Then have them use their ideas to create a poster about ways we can protect animals.
2)Ask each group to present their poster to the class.
CLASS CLOSING
Assign homework:
How Can I Help : Research an organization or group that helps save animals. Write a short newspaper article about them. Consider the following questions. o What animals do they help
o How do they help o Where do they help
o How long have they been helping o How can people join them
EXTENSION
PAIR WORK: Translation Match Up
Play Translation Match Up to review the meanings of words from this lesson.
1)Ask the students to scan through the lesson and write down any and all unfamiliar/mastery words. (Each pair of students should have an English- Chinese dictionary to complete this task.)
2)Have the students write every English word and its Chinese translation on separate slips of paper. The students should end up with 14 separate slips of paper(seven for the English words and seven for the Chinese translations).
brave 勇敢
3)Instruct the students to mix up all the words and then match the correct Chinese translation to the correct English word. The pair that correctly matches up all the words the fastest wins.
LANGUAGE NOTES
1. At the beginning of the 20th century, the number of tigers in the wild was around 100 000.在二十世纪初期，野生老虎的数量大约是十万只。
the number of 意为“··的数量”，跟复数名 词连用作主语时，中心词是number，谓语动词要用单数。a number of表示“许多”，相当于many，修饰可数名词复数。作主语时，谓语动词用复数。number前可用large,small等修饰，表 示程度。例如：
The number of students in our class is 50.我们班 学生的数量是50人。
The number of pages in this book is 60.这本书有 60页。
A number of students are planting trees on the hill. 许多学生在小山上植树。
2. But today that number has dropped to a few thousand.但是现在，数量已经下降到几千只。
a few thousand 表示“几千”。当hundred, thousand 前面是基数词 one, two, three.. a few. many时，其后不加s。当hundred 和thousand 后 面加s时，需要跟of修饰可数名词复数。例如：There are three thousand students in our school. 我 们学校有三千学生。
Thousands of students are on the square.数千名学 生在广场上。
3. For this reason, tigers are important to the environment.因为这个原因，老虎对环境很重要。be important to sb./sth..对于..来说是重要 的，强调事物。be important for sb./sth.对于… 来说做……是重要的，强调做的事情。例如：
Time is important to me. 时间对我来说很重要。 It is important for you to get there early. 对你来说 早些到那儿很重要。
In recent years, tigers have been in danger of disappearing.在近几年，老虎处于濒临灭绝的危险中。