RAZ分级阅读 · RAZ H级
Ships and Boats
Introduction Ships and boats carry people and goods over water. Ships and boats were once the fastest way to move things.
Early Ships and Boats The first boats were made out of logs. People used poles to push the boats.
Other boats used paddles or oars. The oars pushed against the water to move the boats.
Later, people made boats with wooden frames. They covered the frames with bark or animal skins.
Frame boats were larger than log boats. Many people could row at the same time.
