内容正文:
Unit4 Amazing Science
Topic1 When was it invented?
Section A
前置性测试题
用适当形式填空
1. We should tell our daughter not to speak to the ______(stranger).
2. There must be _____(silent) in the library.
3. The big cake is_______(divide) into eight pieces.
4. It is a good habit to stick to_______(keep) a diary.
Teaching aims:
Knowledge aim:
Master the new words and key phrases.
Learn the passive voice of simple past.
Ability aim:
Improve listening and speaking ability.
Emotional aim:
Enable to become more interested in science and technology.
Important and difficult language points:
1. Key points:
Words and phrases: lock, metal, be made of, be made from, be made in, be used for, be allowed to do sth.
Sentences:What’s it made of?
It’s made from wood.
What’s it used for?
It’s used for locking the door.
I wish I could go into space some day.
I hope your dream will come true.
Grammar: was/were +pp
2. Difficult points:
be made of和be made from的用法辨析。
I wish I could go into space some day.
It’s used for writing on .
Teaching procedures:
Step1. Review:Change the following sentences into passive voice.
1. many people use computer
2. Jim cleans the door everyday
Step2. Sum up the usage of simple past tense of the passive voice
Step3. Lead to 1a
1. let the students read 1a by themselves.
2. read 1a again,find out the key points.
Step4. Discussion
1. discuss 1a in groups
2. discuss the following phrases
allow sb. to do sth.
allow doing sth.
be allowed to do sth.
be used for doing
used to do sth. ;be used as ;be used by ;
used to doing sth, be used to do sth.
some day;one day
Step5. Explain some difficult points
Step6. Listen to 3a. Finish the table then check the answers.
反馈性测试题
1.My mother allows me to use her cellphone.(改为被动语态)
I _____ ______ _____ use my mother’s cellphone.
2.A rocket i