英语教案 Unit 3 Online travel(Grammar II)学案

unit 3 online travel(grammar ii)学案
学习目标： 1 to become familiar with the function of the word ‘by’ to indicate the agent who does something
2 to consolidate the passive voice
学习重点：to become familiar with the function of the word ‘by’ to indicate the agent who does something
学习难点： to consolidate the passive voice
教具学具：  blackboard, ppt, etc
教    学    设    计
预习作业 
一、预习书后新单词和课本内容。
二、完成下面的预习题：
（一）写出下列动词的过去分词和现在分词。
1. buy ______ ________          2. teach _________ _________
3. sell ______ ___________       4. catch ________ _________
5. design _______ _________      6. cut _______ -_________
7. produce ________ ________     8. set ________ _________
9. earn _________ ____________   10 print _________ _________
（二）根据句意、首字母或中文提示完成下列句子。
1.millie doesn’t know how to open her ___________ (电子词典)
2. let’s ___________ (重启) the computer, ok?
3. we should check the ___________ (设置) of the computer first.
4. please _________ (连接)your computer to a telephone line.
5. p_________ the green button, then the machine will be turned on.
6. before simon can play the game, he must ________ (通过)a test.
7. princess laura was born in __________ （魔幻）land eighteen years old.
8. mr. green is over six f___________ tall.
9. princess laura was caught by an e___________ witch.
10. the game is set on __________ (火星)
教    学    环    节 
一、预习交流 
step ⅰ.check the preparation out.
二、展示探究
step ⅱ. having a revision
get the students to review the structure of the passive voice, including the simple present tense and the simple past tense.
when can we use the passive voice? 
change the following sentences into passive voice:
1. people make this kind of computer in beijing.
2. people use this kind of computer widely.
3. my father mended the computer for me.
4. mum often washes clothes for us.
5. they search the information on the internet.

step ⅲ. presenting
1. we can use ‘by’ to say who or what does the action.
2. read through the sample sentences on page 49 and make them understand how to use ‘by’.
3. tell the students to complete ‘work out the rule!’ on their own. ask a volunteer to read out the rule.

step ⅳ. practising
1. simon has bought a new educational cd-rom called ‘saving princess laura’. before he can play the game, he must pass a test. 共3页，当前第1页123