Frightening nature（The First Period）
nowadays scientists know a little about earthquakes and they still cannot stop these disasters from happening. however, they can warn people who live in these areas by pre diction, in advance to take precautions against such disasters. a worldwide earthquake warning network is already in operation at present and is expected to make earthquake prediction several years ahead of time.
the first period
teaching aims:
1. learn the new words of this period and master their usages.
2. listen to a passage about weather forecast,
3. talk about natural disasters.
teaching important points:
1. how to improve the students' listening ability.
2. how to improve the students' speaking ability.
teaching difficult point:
how to use what the students have learned to describe a nature disaster.
teaching methods:
1. listening to improve the students' ability to listen.
2. discussion and free talk to get every student to speak.
3. talking the interesting topics to raise the students' interest in science.
teaching aids:
1. a computer
2. a projector
3. a tape recorder
teaching procedures
step i greetings and revision
greet the whole class as usual.
t: have you finished your homework?
(ss: yes )please put your exercise books on your desks. i'll check your homework.… (after teacher checks the students’ homework, teacher says the following. )
t: open your books at page 113. let's learn the new words of this period first. sa, read the new words, please.
sa:…
(teacher corrects the students' mistakes in pronunciation and gives the brief explanations of some words when necessary.)
step ii warming up
t: please open your books at page 73.look at the four pictures. what can you see in the pictures? have a discussion with your partner and do the exercises. some minutes later, i'll ask some of you to give the answers.
(teacher goes among the class and join in the students' discussion. some minutes later, teacher says the following. )
t: have you finished?
ss: yes.
t: let's do ex. 1. who will talk about the first picture?
s: perhaps the first picture is a geomorphologic map.
t: please go on !
sb: in the second picture we can see a scene in which some tall trees are blown down. perhaps a typhoon has just happened. what a sad scene! if we want to get more information, we can see pictures taken by the satellite on the internet.
sc: in the third picture. i saw a comet. it has a very bright head and a long less