约11960字。

　　Unit 1 A land of diversity
　　Period 1 Warming up & reading
　　Step Ⅰ Lead-in
　　T: Boys and girls, we’ve learned English several years. We know that English is mainly used in England, Australia, the United States of America, etc. And we’re now learning American English. But how much do you know about the United States of America — a land of diversity? As we all know, the US is a world power with the most developed economy. It lies in the North America, bordering both the North Atlantic Ocean and the North Pacific Ocean, between Canada and Mexico. There are fifty states in the US. Forty-eight of them are in the single region between Canada and Mexico; this group is referred to, as the continental or contiguous United States. Two of the 50 states, Alaska (a state in northwestern North America) and Hawaii (a state in the central Pacific on the Hawaiian Islands), are not contiguous with any of the other states. Today we are going to learn more about this powerful country. First, look at the following pictures.
　　Show some pictures on the screen.
　　Step Ⅱ Warming up
　　Ask the students to turn to page 1 and look at the map of the USA and talt it in groups of 4.
　　Fill in the given form. Then write on the map the names of the oceans, countries, mountain ranges, lakes, rivers and big cities. At last, check the answers with the whole class.
　　T: Good job! Do you want to learn more knowledge about the USA? Now please open your books and turn to page 1. Here is a map of the USA. Please look at it carefully. Try to write on the map the names of the oceans, countries, mountain ranges, lakes, rivers and big cities.
　　Step Ⅲ Pre-reading
　　T: Can you find the location of California? Where does it lie?
　　S1: Yes, it is lying on the Pacific Ocean in the west and on Mexico in the south.
　　S2: California is on the west coast of the United States, which is diverse in topography, climate and ecological environment.
　　T: Correct. Anything else do you know about the state?
　　S2: It has an area of 411 square kilometers. And it is one of the American states of the largest population, with the most developed economy.
　　S3: You are right. Its economy takes the first place among all the states. So it’s one of the most important states.
　　S4: The pleasant weather, long beach and graceful natural landscape make the tourism prosperous.
　　T: Well done! Just as people go to the USA from many places today, so did in ancient times. Today we’re going to learn the short history of California. Now please look at the pictures about California. And discuss in groups of 4 what each picture means to you. A few minutes later, I’ll ask some of you to say something about them.
　　A few minutes later.
　　T: OK, now I’d like some of you to say something about the pictures.
　　S1: I can see a Native American farmer in the left picture on page 1. He was standing beside a camp in the forest. It seemed that he felt very happy. Maybe he had a good harvest.
　　S2: The villagers moved to these various camps in the forests during the harvest season, depending on the type of crop being gathered.
　　S3: In the middle picture, a man was panning gold. He looked not only thin and weat also thirsty and tired.
　　S4: I think it was difficult for them to achieve the dream of becoming rich.
　　S5: He might have to give up, leave California and go back home.
　　S6: The right picture illustrates modern California with beautiful buildings and busy street.
　　S7: By 1990, the nations being immigrated from different parts of the world had made California into the most racially and ethnically diverse state in the country.
　　S8: The picture on page 2 shows us a Spanish religious man.
　　S9: The picture on page 3 shows us Indian children were allowed to attend public schools.
　　S10: The number of African Americans in California increased dramatically following the turn of the 20th century.
　　Step Ⅳ Reading
　　Scanning
　　Ask the students to read the text silently and then ask some questions about the text.
　　T: Today we’re going to read a short history of western painting. Now let’s read it quickly and find