Unit 5 The power of nature教案
2.encourage students to talk more about volcanoes by looking at the following pictures.
step 3 reading and comprehending
1.fast－reading：ask students to skim the passage so as to get the key words and general idea of each paragraph and answer the question：what's the main idea of the text?
2.read the passage carefully and answer the following questions.
(1)why is a volcanologist's job important?
(2)why is the lava that flows on mount kilauea more dangerous than the actual eruption?
(3)why was it difficult for the writer to walk towards the edge of the crater?
(4)what does the writer find impressive about volcanoes even after studying them for many years?
(5)what did the author think it was when an eruption occurred?
(6)why did the scientists look like spacemen?
suggested answers：
1.this passage is a first－person account of a volcanologist's experiences.the volcanologist described his exciting job and wrote down his first sight of an eruption.
2.(1)volcanologists study volcanoes so that they can warn people when the volcano is going to erupt and so save many lives.
(2)the lava flows down the mountain and can cover up or burn villages in its path.the rocks that erupt from the volcano usually don't damage anything because no one lives near the crater.
(3)the author was wearing special protective clothing that made it difficult to walk.
(4)the author finds their be auty and their potential to cause great damage very impressive.
(5)he thought it was an earthquake.
(6)because they wore white protective suits that covered their whole body.
3.ask students to scan for detailed information and discuss the following question with their partners and be prepared to report to the class.
question：having learned a little more about the work of a v olcanologist，do you think it is an occupation you would enjoy？give you reasons.
suggested answers:
no，i probably wouldn't enjoy this job because i wouldn't have to live in other countries and i don't like being in dangerous situations，either.above all，i'm not very good at science.
or
yes，i'd love to do a job like this because i would enjoy working outside and i think i would enjoy the adventure.it would be exciting to meet people from different countries and i would feel good about helping people avoid danger.
step 4 language study
dealing with any language problem if any(words or sentences students might not understand)to help the students to have a better understanding of the text.
step 5 listening，reading aloud and underlining