list the words referring to different topographical features in the text. Then they are required to match these words with the English explanations. Through this part we can develop Ss' ability of guessing the meanings of new words according to the contexts. To stimulate Ss to take part in the class activity more actively，the teacher can organize a group competition，to see which group can finish the task fastest and best.To show Ss the different topography，the teacher can present some pictures. Later on，the teacher will teach some other new words in the text and ask Ss to pronounce these words correctly. For the second reading，the teacher will present five statements for the students to judge. This part is designed to get Ss into the habit of reading a passage as a whole，that is，to get the general idea. Another purpose of this part is to ask Ss to pay attention to the details.

　　The teacher asks Ss to read the title and subtitle in order to make them think about the organization of the whole passage，and this method can help them not only in their understanding but also in writing a passage. To develop Ss' scanning ability，the teacher designs five questions，some of which are very difficult. So the teacher will help them to read between the lines，thus Ss can gradually get the ability to understand the writer's implied meanings.

To consolidate the new words in the passage，the teacher asks Ss to finish Part 1 and Part 3 on Page 20 after class. At the same time，they are