UNIT4 The Internet Connects Us Lesson20教案冀教版八年级下册

UNIT 4: The Internet Connects Us
Lesson 20 A Computer Helps!
LESSON PREPARATION
LANGUAGE KNOWLEDGE
掌握词汇：enter, key, search, depend. hide (hid hidden)
接触词汇：laptop, Easter, topic, bunny
短语和句型：search engine, depend on. Easter Bunny
RESOURCES
audiotape poster paper
LESSON STRUCTURE
CLASS OPENING
Greeting
Greet the class.
Teacher: Good morning/afternoon, class. How are you
Review
I) Homework check.
2) Choose some students to present their passage "The Intemet and Me".
3) Review using the adverbial clause with "if". KEY CONCEPTS
FOCUS STRUCTURES:
The date depends on the moon, but it is always in March or April
STEP 1: Present
GROUP/CLASS WORK: Culture Tip and Think About It
1) Introduce Lesson 20. Ask individual students to read the title (A Compurter Helps!) and discuss how a computer/the Intemet might be helpful.
2) Divide the class into groups to discuss the Culture Tip. Then have each group discuss the Thhink About It questions.
Teacher: In this lesson. Wang Mei docs some research about the Christian holiday, Easter. Read the Culture Tip in your groups and then share with the class what you know about this holiduy.
3) Have the groups share their answers with the class.
STEP 2: Listen
CLASS WORK: Ler's Do It! Na I
Play the listening material for Lesson 20(A Cowputer Heips). Play it once and ask the students ust to listen.
2) Play the audiotape a second time and ask the students to complete the exercise
3) Check the answers as a class and correct any false stutements.
STEP 3: Listen and Read
CLASS WORK: Listening and reading
1) Play the audiotape for Lesson 20 and ask the class to listen and read aloud along with the audiotape 2) Remind the students to do their best to imitate the pronunciation they hear
3) Go over the mastery words for this lesson (enter. key. search, depend and hide).
STEP 4: Read
PAIR WORK: Ler's Do It! Na. 3
1) Instruct the students to read Lesson 20 silently and fill in the mind map with a partner.
2) Students should check and correct their answers in groups.
3) Draw the mind map on the board and check the answers as a class.
STEP 5: Task
GROUP WORK: Ler's Do Ir! No.
1) Divide the class into groups to discuss an important festival in spring in China and do some research about it. Students may need Internet access or you may need to provide them with some research materials.
2) In their groups. students should then follow the example of the mind map in Ler's Do It! No.3 and create their own mind map for their festival. Students should deaw their maps on large poster paper und include pictures or druwings.
CLASS CLOSING
1)Complete Let's Do It! No. 2.
Students complete the exercise independently. Then write the paragraph with the blanks on the board and split the class into two teams. Ask one person from cach team to fill in one of the blanks and read the sentence aloud. The first team to correctly fill in the blanks and read the sentence aloud wins.
2) Assign homework:
How Computers Help Me: Write a list of ways in which a computer has helped you. Then pick one way from youur list and write a passage about it.
EXTENSION
GROUP WORK: Guess The Questions
Play Guess The Questions to review standard questions. Relate this game to web searches. Explain that the Intemet is only a good tool if you know how to use it and part of knowing how to use it means knowing how to search for things. When you are searching for something you are asking questions and looking for an answer. But before you can find the answers, you have to know what questions to ask.
1)Divide the class into groups of four to six. Ask the students to each make their own flashcards that say Who What When Where Why And How and then combine their cards in a stack in their groups.
2)The students then take tums picking up a card and saying a sentence that answers the question on the card. (For what A player might say A computer.) 3)The other players then guess the question on the card. starting with the first player to the right. The first player that guesses the word correctly gets a point. Then the next student picks up a card and makes up a sentence.
*See the "Games" section at the back of this guide for further instructions on how to play.
LANGUAGE NOTES
1. I entered some key words into a search engine to find information on this topic.我在搜索引擎里输 入一些关键词来寻找有关这个话题的信息。
1）key在句中作形容词，意为“主要的，关键的”。key作名词时可表示“钥匙；（计算机等的）键：关键”之意。例如：
They work in the key post.他们在关键的岗位工 作
She reached for her coat and car keys.她伸手拿外 套和汽车钥匙。
This is the key to world peace.这是世界和平的关 键。
2）on作介词，意为“关于，有关”，与about同义。例如：
I borrowed a book on computer technology.我借了 一本关于电脑技术的书。
2. It's one of the biggest bolidays in muny countries. 在很多国家这是最重大的节日之一
“one of+最高级+名词复数”表示“最··.·.的之一”。例如；
Tom is one of the best students in our class.汤姆是 我们班最好的学生之一，
English is one of the most important languages in the world.英语是世界上最重要的语言之一。
3. Easter does not fall on the same day each year. 活节每年的时间不一样。
fall在句中作不及物动词，意为“到来，来临”。与come同义。fall还可以表示“降落，掉落，摔倒”。例如：
Leaves fall from the trees.叶子从树上落下 Be careful! Don't fall off the bike.小心！不要从自 行车上掉下来。
He ran too fast and fell down.他跑得太快，摔倒了。 4. The date depends on the moon, but it is always in March or April.日期取决于月亮，但总是在三月或四月。
depend on意为“依赖于，取决于，依·..而定”。例如：
You can depend on him to make a good choice.你 可以依靠他做出好的选择
All living things depend on the sun for their growth. 万物生长靠太阳。