Unit 4 Astronomy: the science of the stars（Vocabulary and Useful Expressions）
e.g.the hot weather lasted for the whole month of july.
as a verb，“last” could also mean to manage to remain in the same situation，even when this is difficult.
e.g.they won’t be able to last much longer without fresh supplies.
the word “last” can also be used as a linking verb.it means being enough for someone to use.
e.g.we only had $50 to last us the rest of the month.
s11：in the last paragraph，“all hope was not lost.” what is the meaning of this sentence？
t：this sentence is a partial negative. it has the same meaning with “not all hope was lost.”
e.g.（1）all the students do not agree to the plan.
（2）not all the students agree to the plan.
these two sentences mean some of the students agree to the plan，but some don’t.
step 5 consolidation
t：now after the explanations of the words，expressions and sentence patterns，let’s do some exercises. please turn to page 28 and look at part 2 in learning about language. complete the passage with some of the words in the text.
（after several minutes teacher asks one of the students to read the short passage. correct any mistakes if there are any.）
step 6 homework
t：in order to master the usage of these words and expressions，please do some related exercises. finish off the two parts in using words and expressions on page 63.
●板書設計
unit 4 earthquakes
the third period
important words：
1.burst （v.）2.crack （n./v.）
3.ruin
4.injure/wound
5.destroy/ruin
6.shocked
7.last（vi.）
important expressions：
1.it seemed that the world was at an end.
2.all hope was not lost.（部分否定句）
●活動與探究
story-telling competition：
for most of human history，people could only imagine what caused earthquakes to happen.so stories were told to explain this natural disaster.a story from india says that four very big elephants hole up the earth.the elephants stand on the back of a bigger turtle.the turtle stands on an even bigger snake.when any of these huge magical animals move，the earth begins to shake!
1.in pairs make up a story to explain how an earthquake happens.
2.share your story with your classmates.
3.choose which one is the most interesting.give a reason.
●備課資料
知識點歸納：
1.shake用法歸納（shake，shook，shaken）
（1）抖動，震動，常作不及物動詞，也作及物動詞。
the house shook when the earthquake started.
當地震發生時，房子震動了。
she was shaking with anger.
她氣得發抖。
his heavy steps shook the room.
他沉重的腳步使房子都震動了。
she was badly shaken by the news.
她對這個消息大為震驚。
（2）搖動，作及物動詞
shake the bottle before taking the medicine.