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1、Unit 4,Unit 4 Public transport,Welcome to the unit,1. How do you go to school everyday? 2. Do you know what means of transport did people use in the past?,Warming up,1. How do people travel within a city? 2. How do people travel to nearby cities? 3. How did people travel to a faraway city in ancient

2、 times?,Group discussion,public transport,buses,coaches,trains,the underground,ships,high-speed trains,airplanes,_ have routes. They pick up and drop off people at different places on the route. It is a popular means of transport within a city.,Buses,Different means of transport,_ are a comfortable

3、way to travel from place to place.,Ships,_ are buses that carry people over long distances.,Coaches,_ has become popular in crowded cities.,The underground,_ run much faster than normal trains.,High-speed trains,_ are used for rapid travel over long distances.,Airplanes,Do you know these tools of tr

4、ansport?,light railway,helicopter,ferry,motorboat,What do you have to consider before you decide which means of transportation you will use? What are the advantages and disadvantages of the popular means of transport?,Discussion,distance speed cost comfort,safety time convenience weather,Factors sho

5、uld be taken into consideration:,buses or coaches the underground high-speed trains ships airplanes,Advantages and disadvantages,cheap and convenient,easily trapped in traffic jams; not so comfortable during peak times because they are usually very crowded; cause pollution,Advantages and disadvantag

6、es,fast and convenient; comfortable; fewer traffic accidents,expensive to build,extremely fast and convenient,expensive to build,cheap and comfortable,not comfortable for those who are seasick; relatively slow; the safety of the trip would be affected by storms,expensive,fast and convenient,Review what we have