A long time ago, people wanted to ____. They built wings and drew pictures of flying machines. Today, airplanes use strong ____ to fly high and fast. The force from the engine pushes the plane forward. Planes that fly low or slow use ____ engines. These engines have blades that spin like a fan. Airplanes can quickly carry cargo long distances. ____ are items traveling from one place to another. A space shuttle rides a ____ into space. When it comes back to Earth, its wings let it land like an airplane.

Flying Machine

由
列印
嵌入

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?