【正文】 in Paris, it’s 11 am in Boston.So there is a 6hour difference between Paris and Boston.One large country, China, has just one time zone for the whole country.As a result, at the same time, some parts of the country can be dark and other parts can be light.Which large country has only one time zone? –China.Why is the earth divided into time zones? –It rotates.As you travel around the earth, the time changes.The time of day depends on your location on the planet.When you travel east or west, you may cross several time zones.For example, if you travel from Beijing to Los Angeles, you cross 8 time zones.That means, when it’s noon on Sunday in China, it’s 8 pm on Saturday in Los Angeles.For travelers, this means it can be very difficult to sleep after a long flight.The clock may say 8 pm, but for your body, it’s noon.This is called jet lag.What causes jet lag? –crossing several time zones.What happens if you travel east or west? –You may cross several time zones.What changes as you travel around the earth? –the time.What happens if you travel from Beijing to Los Angeles? –You will cross several time zones.It depends on how far east or west you travel.Crossing several time zones causes jet lag.Kim is a popular Korea actress.She’s 28 years old, slim, and beautiful.She has a large fan club, and her movies are very popular.Everywhere she goes, her fans want her autograph.But Kim wants more.She wants to be popular all over the world.What does Kim do? –She is an actress.What does Kim want? –She wants to be more popular.What do her fans want? –Her autograph.Tomorrow is a special day for her.She’s leaving for Hollywood.She’s going to Hollywood to meet with some top movie executives.The meeting is scheduled the day after tomorrow.If the meeting goes well, she’ll be in a Hollywood movie.This is her chance to bee a star.When is she leaving for Holly Wood? –tomorrow.What will happen if the meeting goes well? –She’ll be in a Hollywood movie.When is she going to meet with executives? –the day after tomorrow.She met the movie’s director last year.He came to Korea and saw her latest movie.After that he decided to use her in his new movie.Fortunately, Kim’s English is excellent, so she can play the role.Who did she meet in Korea last year? –the movie’s director.What did the movie director decide to do? He decided to use her in his new movie.The director wants her to play a major role in the movie.The movie story will take place in the future.At that time the world will be a very different place.Unfortunately, much of world will be polluted.Robots will do much of the work, and only the very rich can have a good life.In the movie, who can have a good life? –the very rich.What are robots?–machines.The ending of the movie is still a secret.Even Kim doesn’t know how it will end.But she hopes it will have a happy ending.She wants people to have hope for a better future.What doesn’t Kim know? –the ending of the movieVocabularyThese people are having a meeting.The woman is giving a presentation.This person is having a scary dream.In his dream, something is chasing him, so he is running as fast as he can.This old man is a tourist.He is looking out the window of his tour bus.This young couple is in an art museum.They are looking at a famous painting.The sun is setting behind the mountains.The sky is turning red.Some buses, like this one, take tourists to places like the Great Wall.She’s giving a presentation at a meeting.The longest line is the one on the top.The top line is the longest of the three lines.The shortest line is the one in the middle.The line in the middle is shorter than the other two.The bottom line is the shortest.The shortest of these three lines is the one on the bottom.The shirt on the left is more expensive than the shirt on the right.The shirt on the right is less expensive than the shirt on the left.The shirt on the left isn’t as expensive as the one on the right.The shirt on the left costs less than the one on the right.The shirt on the left is more expensive than the shirt on the right.Winter is the coldest season because the sun is at its lowest point in the sky.Winter sports include skiing and ice skating.Summer is the hottest season because the sun is at its highest point in the sky.Many people like to go swimming in the summer because of the hot weather.Spring is the season when the weather gets warmer each day.For many animals new life begins in the spring.Autumn is the season when the weather begins to cool and the days begin to shorten.Autumn is when trees turn many colors and leaves fall to the ground.Rainy season is the season when some countries get most of the rainfall. Rainyseason usually lasts for one or two monthsDialogueM: Hi, I’m sorry to be late.W: What happened? You were supposed to be here an hour ago. M:Yes, I know, but I missed my flight.How late is he? –H’s an hour late.W: You missed your flight? How did that happen?M: I got on the wrong bus this morning, so I was late to the airport. By the time I arrived, the gate was closed.W: What did you do then?M: I had to rebook my flight and get on the waiting list.Why was he late to the airport? –He got on the wrong bus.What did he do when he got to the airport? –He rebooked his flight.He had to get on a waiting list because other people were also trying to get on the flight.W: Oh, that’s too bad. At least you got here.M: Yes, it wasn’t easy getting on the next flight. I had to run to the gate.W: This kind of thing happens a lot lately. Last week I missed a flight, too.What wasn’t easy? –It wasn’t easy getting on the next flight.M: What happened?W: There was a traffic accident near the airport.M: You were driving?W: No, I wasn’